TY  - CONF
AU  - Singh, Suraj Kumar
AU  - Yadav, Sachin
AU  - Batas Bjelić, Ilija
AU  - Singh, Rhythm
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15197
AB  - The focus of this study is to analyse and compare the predictive capabilities of univariate and multivariate methods of forecasting the global horizontal irradiance (GHI) for an hour ahead. The forecasting problem is addressed using supervised machine learning methods. In order to simplify the model, a feature selection algorithm is used to identify the highly correlated features. The forecasting is performed by utilizing popular machine learning algorithms viz., random forest (RF), K-nearest neighbors regression (KNN), support vector machine (SVM) and artificial neural networks (ANN). The paper evaluates and contrasts the effectiveness of these models for this application. Additionally, the study examines how the forecasting models' performance varies throughout the year and across seasons.
PB  - IEEE
C3  - 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023
T1  - Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting
SP  - 155
EP  - 160
DO  - 10.1109/ICEST58410.2023.10187242
UR  - https://hdl.handle.net/21.15107/rcub_dais_15197
ER  - 

@conference{
author = "Singh, Suraj Kumar and Yadav, Sachin and Batas Bjelić, Ilija and Singh, Rhythm",
year = "2023",
abstract = "The focus of this study is to analyse and compare the predictive capabilities of univariate and multivariate methods of forecasting the global horizontal irradiance (GHI) for an hour ahead. The forecasting problem is addressed using supervised machine learning methods. In order to simplify the model, a feature selection algorithm is used to identify the highly correlated features. The forecasting is performed by utilizing popular machine learning algorithms viz., random forest (RF), K-nearest neighbors regression (KNN), support vector machine (SVM) and artificial neural networks (ANN). The paper evaluates and contrasts the effectiveness of these models for this application. Additionally, the study examines how the forecasting models' performance varies throughout the year and across seasons.",
publisher = "IEEE",
journal = "2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023",
title = "Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting",
pages = "155-160",
doi = "10.1109/ICEST58410.2023.10187242",
url = "https://hdl.handle.net/21.15107/rcub_dais_15197"
}

Singh, S. K., Yadav, S., Batas Bjelić, I.,& Singh, R.. (2023). Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting. in 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023
IEEE., 155-160.
https://doi.org/10.1109/ICEST58410.2023.10187242
https://hdl.handle.net/21.15107/rcub_dais_15197

Singh SK, Yadav S, Batas Bjelić I, Singh R. Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting. in 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023. 2023;:155-160.
doi:10.1109/ICEST58410.2023.10187242
https://hdl.handle.net/21.15107/rcub_dais_15197 .

Singh, Suraj Kumar, Yadav, Sachin, Batas Bjelić, Ilija, Singh, Rhythm, "Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting" in 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023 (2023):155-160,
https://doi.org/10.1109/ICEST58410.2023.10187242 .,
https://hdl.handle.net/21.15107/rcub_dais_15197 .

TY  - CONF
AU  - Singh, Suraj Kumar
AU  - Yadav, Sachin
AU  - Batas Bjelić, Ilija
AU  - Singh, Rhythm
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15198
AB  - The focus of this study is to analyse and compare the predictive capabilities of univariate and multivariate methods of forecasting the global horizontal irradiance (GHI) for an hour ahead. The forecasting problem is addressed using supervised machine learning methods. In order to simplify the model, a feature selection algorithm is used to identify the highly correlated features. The forecasting is performed by utilizing popular machine learning algorithms viz., random forest (RF), K-nearest neighbors regression (KNN), support vector machine (SVM) and artificial neural networks (ANN). The paper evaluates and contrasts the effectiveness of these models for this application. Additionally, the study examines how the forecasting models' performance varies throughout the year and across seasons.
PB  - IEEE
C3  - 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023
T1  - Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting
SP  - 155
EP  - 160
DO  - 10.1109/ICEST58410.2023.10187242
UR  - https://hdl.handle.net/21.15107/rcub_dais_15198
ER  - 

@conference{
author = "Singh, Suraj Kumar and Yadav, Sachin and Batas Bjelić, Ilija and Singh, Rhythm",
year = "2023",
abstract = "The focus of this study is to analyse and compare the predictive capabilities of univariate and multivariate methods of forecasting the global horizontal irradiance (GHI) for an hour ahead. The forecasting problem is addressed using supervised machine learning methods. In order to simplify the model, a feature selection algorithm is used to identify the highly correlated features. The forecasting is performed by utilizing popular machine learning algorithms viz., random forest (RF), K-nearest neighbors regression (KNN), support vector machine (SVM) and artificial neural networks (ANN). The paper evaluates and contrasts the effectiveness of these models for this application. Additionally, the study examines how the forecasting models' performance varies throughout the year and across seasons.",
publisher = "IEEE",
journal = "2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023",
title = "Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting",
pages = "155-160",
doi = "10.1109/ICEST58410.2023.10187242",
url = "https://hdl.handle.net/21.15107/rcub_dais_15198"
}

Singh, S. K., Yadav, S., Batas Bjelić, I.,& Singh, R.. (2023). Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting. in 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023
IEEE., 155-160.
https://doi.org/10.1109/ICEST58410.2023.10187242
https://hdl.handle.net/21.15107/rcub_dais_15198

Singh SK, Yadav S, Batas Bjelić I, Singh R. Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting. in 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023. 2023;:155-160.
doi:10.1109/ICEST58410.2023.10187242
https://hdl.handle.net/21.15107/rcub_dais_15198 .

Singh, Suraj Kumar, Yadav, Sachin, Batas Bjelić, Ilija, Singh, Rhythm, "Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting" in 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),  29 June - 01 July 2023 (2023):155-160,
https://doi.org/10.1109/ICEST58410.2023.10187242 .,
https://hdl.handle.net/21.15107/rcub_dais_15198 .

TY  - JOUR
AU  - Rajaković, Nikola
AU  - Ivanović, Bojan
AU  - Batas Bjelić, Ilija
AU  - Rajić, Tomislav
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16178
AB  - Planiranje nacionalnog energetskog sistema preko sagledavanja alternativnih investicionih odluka kroz godišnje simulacije (korišćenjem alata EnergyPlan) zbog svoje (kombinatorne) složenosti ostavlja malo prostora za eksplicitnost u pogledu uticaja mreže na planerske odluke i zato postoji potreba da se sagledaju i tokovi snaga u mreži. Investicione odluke koje se donose ostaju sa dozom nedorečenosti u tehničkom pogledu, koja se ovom spregom može otkloniti. Alat CASE se koristi za brojne sistemske proračune tokova snaga, struja kratkog spoja, rednih kvarova, stabilnosti na male poremećaje i tranzijentne stabilnosti. U programu su implementirani i proračuni koji se baziraju na proračunu tokova snaga: redukcija mreže, sigurnost (N-1 i N-X), NTC i OTDF/PTDF. Sprega programa CASE i EnergyPlan je ostvarena preko izlaznog tekstualnog fajla EnergyPlan-a koji po satima hronološki u toku cele godine, sadrži razdvojenu ukupnu proizvodnju elektrana po tipu, ukupan konzum sistema podeljen na nekoliko podtipova, izvoz i uvoz iz regulacione oblasti. CASE učitava izlazni fajl EnergyPlan-a i ukupnu proizvodnju po tipovima elektrana CASE raspodeljuje na svaku pojedinačnu elektranu u sistemu prema unapred definisanim koeficijentima raspodele, dok ukupan konzum raspodeljuje proporcionalno postojećim opterećenjima po čvorovima mreže. Tako se za svaki sat u toku godine definiše model sistema za proračun tokova snaga. Rezultati proračuna za svaki sat se čuvaju u operativnoj memoriji CASE programa i mogu se sortirati po najopterećenijem elementu sistema, najvećoj razmeni posmatrane regulacione oblasti, gubicima u regulacionoj oblasti, proizvodnji po određenom tipu elektrane, konzumu, itd. Na ovaj način je omogućeno da se efikasno analizira rad sistema po različitim kriterijumima. Cilj ovog rada je pre svega realizacija sprege dva softverska alata, koja do sada nije bila ostvarena, kao i prikaz nekih od najznačajnih rezultata izabranih među brojnim opcijama sortiranja stanja. Rezultat rada je integracija softverskih alata koja služi na dobrobit planerskih aktivnosti u smislu njihove tehničke izvodljivosti, odnosno da preciznije ispita da li je neki perspektivni scenario realan sa aspekta tokova snaga u prenosnoj mreži.
AB  - Planning of the national energy system by looking at alternative investment decisions through annual simulations (using the EnergyPlan tool) due to its (combinatorial) complexity leaves little room for explicitness regarding the network's impact on planning decisions and therefore there is a need to look at the power flows in the network. The investment decisions that are made remain with a degree of vagueness in the technical aspect, which can be removed with this connection. The CASE tool is used for numerous system calculations of power flows, short- circuit currents, series faults, stability to small disturbances and transient stability. Calculations based on the calculation of power flows are also implemented in the program: network reduction, security (N-1 and N-X), NTC and OTDF/PTDF. The coupling of the CASE program and EnergyPlan was achieved through the output text file of EnergyPlan, which contains the total production of power plants by type, the total consumption of the system divided into several subtypes, export and import from the regulatory area. CASE loads the output file of EnergyPlan and distributes the total production by power plant types to each individual power plant in the system according to predefined distribution coefficients, while the total consumption is distributed proportionally to the existing loads by network nodes. Thus, a system model for power flow calculation is defined for each hour of the year. Calculation results for each hour are stored in the working memory of the CASE program and can be sorted by the most loaded element of the system, the largest exchange of the observed control area, losses in the control area, production by a certain type of power plant, consumption, etc. In this way, it is possible to efficiently analyse the operation of the system according to different criteria. First of all, the goal of this work is to couple the two software tools, which has not been realized until now, as well as the presentation of some of the most significant results selected from among the numerous options of state sorting. The result of the work is the integration of software tools that serve the benefit of planning activities in terms of their technical feasibility, that is, to examine more precisely whether a prospective scenario is realistic from the aspect of power flows in transmission grid.
PB  - Beograd : Univerzitet u Beogradu - Elektrotehnički fakultet
PB  - Beograd : Univerzitet u Beogradu - Mašinski fakultet
PB  - Kragujevac : Univerzitet u Kragujevcu, Fakultet inženjerskih nauka
T2  - Energija, ekonomija, ekologija
T1  - Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije
SP  - 16
EP  - 21
VL  - 25
IS  - 2
DO  - 10.46793/EEE23-2.16R
UR  - https://hdl.handle.net/21.15107/rcub_dais_16178
ER  - 

@article{
author = "Rajaković, Nikola and Ivanović, Bojan and Batas Bjelić, Ilija and Rajić, Tomislav",
year = "2023",
abstract = "Planiranje nacionalnog energetskog sistema preko sagledavanja alternativnih investicionih odluka kroz godišnje simulacije (korišćenjem alata EnergyPlan) zbog svoje (kombinatorne) složenosti ostavlja malo prostora za eksplicitnost u pogledu uticaja mreže na planerske odluke i zato postoji potreba da se sagledaju i tokovi snaga u mreži. Investicione odluke koje se donose ostaju sa dozom nedorečenosti u tehničkom pogledu, koja se ovom spregom može otkloniti. Alat CASE se koristi za brojne sistemske proračune tokova snaga, struja kratkog spoja, rednih kvarova, stabilnosti na male poremećaje i tranzijentne stabilnosti. U programu su implementirani i proračuni koji se baziraju na proračunu tokova snaga: redukcija mreže, sigurnost (N-1 i N-X), NTC i OTDF/PTDF. Sprega programa CASE i EnergyPlan je ostvarena preko izlaznog tekstualnog fajla EnergyPlan-a koji po satima hronološki u toku cele godine, sadrži razdvojenu ukupnu proizvodnju elektrana po tipu, ukupan konzum sistema podeljen na nekoliko podtipova, izvoz i uvoz iz regulacione oblasti. CASE učitava izlazni fajl EnergyPlan-a i ukupnu proizvodnju po tipovima elektrana CASE raspodeljuje na svaku pojedinačnu elektranu u sistemu prema unapred definisanim koeficijentima raspodele, dok ukupan konzum raspodeljuje proporcionalno postojećim opterećenjima po čvorovima mreže. Tako se za svaki sat u toku godine definiše model sistema za proračun tokova snaga. Rezultati proračuna za svaki sat se čuvaju u operativnoj memoriji CASE programa i mogu se sortirati po najopterećenijem elementu sistema, najvećoj razmeni posmatrane regulacione oblasti, gubicima u regulacionoj oblasti, proizvodnji po određenom tipu elektrane, konzumu, itd. Na ovaj način je omogućeno da se efikasno analizira rad sistema po različitim kriterijumima. Cilj ovog rada je pre svega realizacija sprege dva softverska alata, koja do sada nije bila ostvarena, kao i prikaz nekih od najznačajnih rezultata izabranih među brojnim opcijama sortiranja stanja. Rezultat rada je integracija softverskih alata koja služi na dobrobit planerskih aktivnosti u smislu njihove tehničke izvodljivosti, odnosno da preciznije ispita da li je neki perspektivni scenario realan sa aspekta tokova snaga u prenosnoj mreži., Planning of the national energy system by looking at alternative investment decisions through annual simulations (using the EnergyPlan tool) due to its (combinatorial) complexity leaves little room for explicitness regarding the network's impact on planning decisions and therefore there is a need to look at the power flows in the network. The investment decisions that are made remain with a degree of vagueness in the technical aspect, which can be removed with this connection. The CASE tool is used for numerous system calculations of power flows, short- circuit currents, series faults, stability to small disturbances and transient stability. Calculations based on the calculation of power flows are also implemented in the program: network reduction, security (N-1 and N-X), NTC and OTDF/PTDF. The coupling of the CASE program and EnergyPlan was achieved through the output text file of EnergyPlan, which contains the total production of power plants by type, the total consumption of the system divided into several subtypes, export and import from the regulatory area. CASE loads the output file of EnergyPlan and distributes the total production by power plant types to each individual power plant in the system according to predefined distribution coefficients, while the total consumption is distributed proportionally to the existing loads by network nodes. Thus, a system model for power flow calculation is defined for each hour of the year. Calculation results for each hour are stored in the working memory of the CASE program and can be sorted by the most loaded element of the system, the largest exchange of the observed control area, losses in the control area, production by a certain type of power plant, consumption, etc. In this way, it is possible to efficiently analyse the operation of the system according to different criteria. First of all, the goal of this work is to couple the two software tools, which has not been realized until now, as well as the presentation of some of the most significant results selected from among the numerous options of state sorting. The result of the work is the integration of software tools that serve the benefit of planning activities in terms of their technical feasibility, that is, to examine more precisely whether a prospective scenario is realistic from the aspect of power flows in transmission grid.",
publisher = "Beograd : Univerzitet u Beogradu - Elektrotehnički fakultet, Beograd : Univerzitet u Beogradu - Mašinski fakultet, Kragujevac : Univerzitet u Kragujevcu, Fakultet inženjerskih nauka",
journal = "Energija, ekonomija, ekologija",
title = "Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije",
pages = "16-21",
volume = "25",
number = "2",
doi = "10.46793/EEE23-2.16R",
url = "https://hdl.handle.net/21.15107/rcub_dais_16178"
}

Rajaković, N., Ivanović, B., Batas Bjelić, I.,& Rajić, T.. (2023). Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije. in Energija, ekonomija, ekologija
Beograd : Univerzitet u Beogradu - Elektrotehnički fakultet., 25(2), 16-21.
https://doi.org/10.46793/EEE23-2.16R
https://hdl.handle.net/21.15107/rcub_dais_16178

Rajaković N, Ivanović B, Batas Bjelić I, Rajić T. Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije. in Energija, ekonomija, ekologija. 2023;25(2):16-21.
doi:10.46793/EEE23-2.16R
https://hdl.handle.net/21.15107/rcub_dais_16178 .

Rajaković, Nikola, Ivanović, Bojan, Batas Bjelić, Ilija, Rajić, Tomislav, "Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije" in Energija, ekonomija, ekologija, 25, no. 2 (2023):16-21,
https://doi.org/10.46793/EEE23-2.16R .,
https://hdl.handle.net/21.15107/rcub_dais_16178 .

TY  - CONF
AU  - Rajaković, Nikola
AU  - Ivanović, Bojan
AU  - Batas Bjelić, Ilija
AU  - Rajić, Tomislav
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16222
AB  - Planiranje nacionalnog energetskog sistema preko sagledavanja alternativnih investicionih odluka kroz godišnje simulacije (korišćenjem alata Energy Plan) zbog svoje (kombinatorne) složenosti ostavlja malo prostora za eksplicitnost u pogledu uticaja mreže na planerske odluke i zato postoji potreba da se sagledaju i tokovi snaga u mreži. Investicione odluke koje se donose ostaju sa dozom nedorečenosti u tehničkom pogledu, koja se ovom spregom može otkloniti. Alat CASE se koristi za brojne sistemske proračune tokova snaga, struja kratkog spoja, rednih kvarova, stabilnosti na male poremećaje i tranzijentne stabilnosti. U programu su implementirani i proračuni koji se baziraju na proračunu tokova snaga: redukcija mreže, sigurnost (N-1 i N-X), NTC i OTDF/PTDF. Sprega programa CASE i EnergyPlan je ostvarena preko izlaznog tekstualnog fajla EnergyPlan-a koji po satima hronološki u toku cele godine, sadrži razdvojenu ukupnu proizvodnju elektrana po tipu, ukupan konzum sistema podeljen na nekoliko podtipova, izvoz i uvoz iz regualcione oblasti. CASE učitava izlazni fajl EnergyPlan-a i ukupnu proizvodnju po tipovima elektrana CASE raspodeljuje na svaku pojedinačnu elektranu u sistemu prema unapred definisanim koeficijentima raspodele, dok ukupan konzum raspodeljuje proporcionalno postojećim opterećenjima po čvorovima mreže. Tako se za svaki sat u toku godine definiše model sistema za proračun tokova snaga. Rezultati proračuna za svaki sat se čuvaju u operativnoj memoriji CASE programa i mogu se sortirati po najopterećenijem elementu sistema, najvećoj razmeni posmatrane regulacione oblasti, gubicima u regulacionoj oblasti, proizvodnji po određenom tipu elektrane, konzumu itd. Na ovaj način je omogućeno da se efikasno analizira rad sistema po različitim kriterijumima.Cilj ovog rada je pre svega realizacija sprege dva softverska alata, koja do sada nije bila ostvarena, kao i prikaz nekih od najznačajnih rezultata izabranih među brojnim opcijama sortiranja stanja. Rezultat rada je integracija softverskih alata koja služi na dobrobit planerskih aktivnosti u smislu njihove tehničke izvodljivosti, odnosno da preciznije ispita da li je nekiperspektivni scenario realan sa aspekta tokova snaga u prenosnoj mreži.
AB  - Planning of the national energy system by looking at alternative investment decisions through annual simulations (using the EnergyPlan tool) due to its (combinatorial) complexity leaves little room for explicitness regarding the network's impact on planning decisions and therefore there is a need to look at the power flows in the network. The investment decisions that are made remain with a degree of vagueness in the technical aspect, which can be removed with this connection. The CASE tool is used for numerous system calculations of power flows, short-circuit currents, series faults, stability to small disturbances and transient stability. Calculations based on the calculation of power flows are also implemented in the program: network reduction, security (N-1 and NX), NTC and OTDF/PTDF. The coupling of the CASE program and EnergyPlan was achieved through the output text file of EnergyPlan, which contains the total production of power plants by type, the total consumption of the system divided into several subtypes, export and import from the regulatory area by hours, chronologically throughout the year. CASE loads the output file of EnergyPlan and distributes the total production by power plant types to each individual power plant in the system according to predefined distribution coefficients, while the total consumption is distributed proportionally to the existing loads by network nodes. Thus, a system model for power flow calculation is defined for each hour of the year. Calculation results for each hour are stored in the workingmemory of the CASE program and can be sorted by the most loaded element of the system, the largest exchange of the observed controlarea, losses in the controlarea, production by a certain type of power plant, consumption, etc. In this way, it is possible to efficiently analyze the operation of the system according to different criteria. The goal of this work is first of all the realization of the coupling of two software tools, which has not been realized until now, as well as the presentation of some of the most significant results selected from among the numerous options of state sorting. The result of the work is the integration of software tools that serve the benefit of planning activities in terms of their technical feasibility, that is, to examine more precisely whether a prospective scenario is realistic from the aspect of power flows in transmission grid.
PB  - Beograd : Savez energetičara
C3  - Zbornik apstrakata / Energetska nezavisnost regiona u svetlu globalnih poremećaja - Nova realnost : Energetika 2023 = Book of abstracts / Energy independence in the region in the light of global disturbances - A new reality : Energy 2023, 12-15. 09. 2023, Zlatibor, Hotel Mona
T1  - Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije
T1  - Coupling of the simulation planning and power flow calculation tools: Case study of the Republic of Serbia
SP  - 26
EP  - 26
UR  - https://hdl.handle.net/21.15107/rcub_dais_16222
ER  - 

@conference{
author = "Rajaković, Nikola and Ivanović, Bojan and Batas Bjelić, Ilija and Rajić, Tomislav",
year = "2023",
abstract = "Planiranje nacionalnog energetskog sistema preko sagledavanja alternativnih investicionih odluka kroz godišnje simulacije (korišćenjem alata Energy Plan) zbog svoje (kombinatorne) složenosti ostavlja malo prostora za eksplicitnost u pogledu uticaja mreže na planerske odluke i zato postoji potreba da se sagledaju i tokovi snaga u mreži. Investicione odluke koje se donose ostaju sa dozom nedorečenosti u tehničkom pogledu, koja se ovom spregom može otkloniti. Alat CASE se koristi za brojne sistemske proračune tokova snaga, struja kratkog spoja, rednih kvarova, stabilnosti na male poremećaje i tranzijentne stabilnosti. U programu su implementirani i proračuni koji se baziraju na proračunu tokova snaga: redukcija mreže, sigurnost (N-1 i N-X), NTC i OTDF/PTDF. Sprega programa CASE i EnergyPlan je ostvarena preko izlaznog tekstualnog fajla EnergyPlan-a koji po satima hronološki u toku cele godine, sadrži razdvojenu ukupnu proizvodnju elektrana po tipu, ukupan konzum sistema podeljen na nekoliko podtipova, izvoz i uvoz iz regualcione oblasti. CASE učitava izlazni fajl EnergyPlan-a i ukupnu proizvodnju po tipovima elektrana CASE raspodeljuje na svaku pojedinačnu elektranu u sistemu prema unapred definisanim koeficijentima raspodele, dok ukupan konzum raspodeljuje proporcionalno postojećim opterećenjima po čvorovima mreže. Tako se za svaki sat u toku godine definiše model sistema za proračun tokova snaga. Rezultati proračuna za svaki sat se čuvaju u operativnoj memoriji CASE programa i mogu se sortirati po najopterećenijem elementu sistema, najvećoj razmeni posmatrane regulacione oblasti, gubicima u regulacionoj oblasti, proizvodnji po određenom tipu elektrane, konzumu itd. Na ovaj način je omogućeno da se efikasno analizira rad sistema po različitim kriterijumima.Cilj ovog rada je pre svega realizacija sprege dva softverska alata, koja do sada nije bila ostvarena, kao i prikaz nekih od najznačajnih rezultata izabranih među brojnim opcijama sortiranja stanja. Rezultat rada je integracija softverskih alata koja služi na dobrobit planerskih aktivnosti u smislu njihove tehničke izvodljivosti, odnosno da preciznije ispita da li je nekiperspektivni scenario realan sa aspekta tokova snaga u prenosnoj mreži., Planning of the national energy system by looking at alternative investment decisions through annual simulations (using the EnergyPlan tool) due to its (combinatorial) complexity leaves little room for explicitness regarding the network's impact on planning decisions and therefore there is a need to look at the power flows in the network. The investment decisions that are made remain with a degree of vagueness in the technical aspect, which can be removed with this connection. The CASE tool is used for numerous system calculations of power flows, short-circuit currents, series faults, stability to small disturbances and transient stability. Calculations based on the calculation of power flows are also implemented in the program: network reduction, security (N-1 and NX), NTC and OTDF/PTDF. The coupling of the CASE program and EnergyPlan was achieved through the output text file of EnergyPlan, which contains the total production of power plants by type, the total consumption of the system divided into several subtypes, export and import from the regulatory area by hours, chronologically throughout the year. CASE loads the output file of EnergyPlan and distributes the total production by power plant types to each individual power plant in the system according to predefined distribution coefficients, while the total consumption is distributed proportionally to the existing loads by network nodes. Thus, a system model for power flow calculation is defined for each hour of the year. Calculation results for each hour are stored in the workingmemory of the CASE program and can be sorted by the most loaded element of the system, the largest exchange of the observed controlarea, losses in the controlarea, production by a certain type of power plant, consumption, etc. In this way, it is possible to efficiently analyze the operation of the system according to different criteria. The goal of this work is first of all the realization of the coupling of two software tools, which has not been realized until now, as well as the presentation of some of the most significant results selected from among the numerous options of state sorting. The result of the work is the integration of software tools that serve the benefit of planning activities in terms of their technical feasibility, that is, to examine more precisely whether a prospective scenario is realistic from the aspect of power flows in transmission grid.",
publisher = "Beograd : Savez energetičara",
journal = "Zbornik apstrakata / Energetska nezavisnost regiona u svetlu globalnih poremećaja - Nova realnost : Energetika 2023 = Book of abstracts / Energy independence in the region in the light of global disturbances - A new reality : Energy 2023, 12-15. 09. 2023, Zlatibor, Hotel Mona",
title = "Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije, Coupling of the simulation planning and power flow calculation tools: Case study of the Republic of Serbia",
pages = "26-26",
url = "https://hdl.handle.net/21.15107/rcub_dais_16222"
}

Rajaković, N., Ivanović, B., Batas Bjelić, I.,& Rajić, T.. (2023). Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije. in Zbornik apstrakata / Energetska nezavisnost regiona u svetlu globalnih poremećaja - Nova realnost : Energetika 2023 = Book of abstracts / Energy independence in the region in the light of global disturbances - A new reality : Energy 2023, 12-15. 09. 2023, Zlatibor, Hotel Mona
Beograd : Savez energetičara., 26-26.
https://hdl.handle.net/21.15107/rcub_dais_16222

Rajaković N, Ivanović B, Batas Bjelić I, Rajić T. Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije. in Zbornik apstrakata / Energetska nezavisnost regiona u svetlu globalnih poremećaja - Nova realnost : Energetika 2023 = Book of abstracts / Energy independence in the region in the light of global disturbances - A new reality : Energy 2023, 12-15. 09. 2023, Zlatibor, Hotel Mona. 2023;:26-26.
https://hdl.handle.net/21.15107/rcub_dais_16222 .

Rajaković, Nikola, Ivanović, Bojan, Batas Bjelić, Ilija, Rajić, Tomislav, "Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije" in Zbornik apstrakata / Energetska nezavisnost regiona u svetlu globalnih poremećaja - Nova realnost : Energetika 2023 = Book of abstracts / Energy independence in the region in the light of global disturbances - A new reality : Energy 2023, 12-15. 09. 2023, Zlatibor, Hotel Mona (2023):26-26,
https://hdl.handle.net/21.15107/rcub_dais_16222 .

TY  - CONF
AU  - Rajaković, Nikola
AU  - Ivanović, B.
AU  - Batas Bjelić, Ilija
AU  - Rajić, T.
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16219
AB  - The planning of the national energy system by looking at alternative investment decisions through annual simulations (using the EnergyPLAN tool) due to its (combinatorial) complexity leaves little room for explicit network modelling and therefore there is a need to look at the power flows. The investment decisions that are made remain with a degree of vagueness in the technical aspect, which can be removed with this coupling. The CASE tool is used for numerous system calculations of power flows, short-circuit currents, series faults, stability to small disturbances and transient stability. Calculations based on the calculation of power flows are also implemented: network reduction, security (N-1 and N-X), NTC and OTDF/PTDF. The coupling of the CASE and EnergyPLAN programs was achieved through the output text file of EnergyPLAN, which contains the total production of power plants separated by plant type, the total consumption of the system divided into several groups, export and import from the regulatory area hour-by-hour, chronologically throughout the year. CASE tool reads the output file of EnergyPLAN and separates the total production by power plant types to each individual power plant in the system according to predefined distribution coefficients, while the total consumption is distributed proportionally to the existing loads by network nodes. Thus, a model of the power flow calculation system is performed for each hour (1 to 8784) of the year. Calculation results for each hour are stored in the operative memory of the CASE program and can be sorted by the most loaded element of the system, the largest exchange of the observed regulation area, losses in the regulation area, production by a certain type of power plant, consumption, etc. In this way, it is possible to efficiently analyse the operation of the system according to different criteria. The goal of this work is first of all the realization of the coupling of two software tools, which has not been realized until now, as well as the presentation of some of the most significant results selected from among the numerous options of state sorting. The result of the work is the integration of software tools that serve the benefit of planning activities in terms of their technical feasibility, that is, to examine more precisely whether a prospective scenario is realistic from the aspect of power flows in networks.
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
T1  - Coupling a simulation planning tool with the power flow calculation tool: case study of the Republic of Serbia
SP  - 442
EP  - 442
UR  - https://hdl.handle.net/21.15107/rcub_dais_16219
ER  - 

@conference{
author = "Rajaković, Nikola and Ivanović, B. and Batas Bjelić, Ilija and Rajić, T.",
year = "2023",
abstract = "The planning of the national energy system by looking at alternative investment decisions through annual simulations (using the EnergyPLAN tool) due to its (combinatorial) complexity leaves little room for explicit network modelling and therefore there is a need to look at the power flows. The investment decisions that are made remain with a degree of vagueness in the technical aspect, which can be removed with this coupling. The CASE tool is used for numerous system calculations of power flows, short-circuit currents, series faults, stability to small disturbances and transient stability. Calculations based on the calculation of power flows are also implemented: network reduction, security (N-1 and N-X), NTC and OTDF/PTDF. The coupling of the CASE and EnergyPLAN programs was achieved through the output text file of EnergyPLAN, which contains the total production of power plants separated by plant type, the total consumption of the system divided into several groups, export and import from the regulatory area hour-by-hour, chronologically throughout the year. CASE tool reads the output file of EnergyPLAN and separates the total production by power plant types to each individual power plant in the system according to predefined distribution coefficients, while the total consumption is distributed proportionally to the existing loads by network nodes. Thus, a model of the power flow calculation system is performed for each hour (1 to 8784) of the year. Calculation results for each hour are stored in the operative memory of the CASE program and can be sorted by the most loaded element of the system, the largest exchange of the observed regulation area, losses in the regulation area, production by a certain type of power plant, consumption, etc. In this way, it is possible to efficiently analyse the operation of the system according to different criteria. The goal of this work is first of all the realization of the coupling of two software tools, which has not been realized until now, as well as the presentation of some of the most significant results selected from among the numerous options of state sorting. The result of the work is the integration of software tools that serve the benefit of planning activities in terms of their technical feasibility, that is, to examine more precisely whether a prospective scenario is realistic from the aspect of power flows in networks.",
publisher = "Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia",
title = "Coupling a simulation planning tool with the power flow calculation tool: case study of the Republic of Serbia",
pages = "442-442",
url = "https://hdl.handle.net/21.15107/rcub_dais_16219"
}

Rajaković, N., Ivanović, B., Batas Bjelić, I.,& Rajić, T.. (2023). Coupling a simulation planning tool with the power flow calculation tool: case study of the Republic of Serbia. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
Zagreb : Faculty of Mechanical Engineering and Naval Architecture., 442-442.
https://hdl.handle.net/21.15107/rcub_dais_16219

Rajaković N, Ivanović B, Batas Bjelić I, Rajić T. Coupling a simulation planning tool with the power flow calculation tool: case study of the Republic of Serbia. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia. 2023;:442-442.
https://hdl.handle.net/21.15107/rcub_dais_16219 .

Rajaković, Nikola, Ivanović, B., Batas Bjelić, Ilija, Rajić, T., "Coupling a simulation planning tool with the power flow calculation tool: case study of the Republic of Serbia" in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia (2023):442-442,
https://hdl.handle.net/21.15107/rcub_dais_16219 .

TY  - CONF
AU  - Batas Bjelić, Ilija
AU  - Capellan-Perez, I.
AU  - Rajaković, Nikola
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16221
AB  - Simulation based optimization concept has been so far presented at local and national energy systems planning levels. For the first time, the concept will be introduced at the larger modeling scale at the world level using a working IAM model, although some attempts have been made previously. This method represents a systematic way of dealing with uncertainties and combinatorial complexity when using modelling tools of very large size with significant number of possible policy inputs. The concept will be demonstrated using system dynamics platform Vensim (version 9.3.4.) for simulation and optimization. For an optimization problem formulation, 38 decision variables are selected from numerous (thousands of) input model parameters, the gross domestic product per capita has been selected for a goal function from simulation result as quantifiable policy objective, while for the constraint CO2 emissions is selected as subject to binding targets. It is possible to compile the simulation code so that optimization running time is around 10 times shorter. Preliminary results show that it is possible to implement richer optimization problems without significant increases in the running time using personal computers. The original Vensim code has been provided in Appendix.
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
T1  - Simulation based-optimization concept for Integrated Assessment Models
SP  - 140
EP  - 140
UR  - https://hdl.handle.net/21.15107/rcub_dais_16221
ER  - 

@conference{
author = "Batas Bjelić, Ilija and Capellan-Perez, I. and Rajaković, Nikola",
year = "2023",
abstract = "Simulation based optimization concept has been so far presented at local and national energy systems planning levels. For the first time, the concept will be introduced at the larger modeling scale at the world level using a working IAM model, although some attempts have been made previously. This method represents a systematic way of dealing with uncertainties and combinatorial complexity when using modelling tools of very large size with significant number of possible policy inputs. The concept will be demonstrated using system dynamics platform Vensim (version 9.3.4.) for simulation and optimization. For an optimization problem formulation, 38 decision variables are selected from numerous (thousands of) input model parameters, the gross domestic product per capita has been selected for a goal function from simulation result as quantifiable policy objective, while for the constraint CO2 emissions is selected as subject to binding targets. It is possible to compile the simulation code so that optimization running time is around 10 times shorter. Preliminary results show that it is possible to implement richer optimization problems without significant increases in the running time using personal computers. The original Vensim code has been provided in Appendix.",
publisher = "Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia",
title = "Simulation based-optimization concept for Integrated Assessment Models",
pages = "140-140",
url = "https://hdl.handle.net/21.15107/rcub_dais_16221"
}

Batas Bjelić, I., Capellan-Perez, I.,& Rajaković, N.. (2023). Simulation based-optimization concept for Integrated Assessment Models. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
Zagreb : Faculty of Mechanical Engineering and Naval Architecture., 140-140.
https://hdl.handle.net/21.15107/rcub_dais_16221

Batas Bjelić I, Capellan-Perez I, Rajaković N. Simulation based-optimization concept for Integrated Assessment Models. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia. 2023;:140-140.
https://hdl.handle.net/21.15107/rcub_dais_16221 .

Batas Bjelić, Ilija, Capellan-Perez, I., Rajaković, Nikola, "Simulation based-optimization concept for Integrated Assessment Models" in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia (2023):140-140,
https://hdl.handle.net/21.15107/rcub_dais_16221 .

TY  - CONF
AU  - Eggler, L.
AU  - Capellan-Perez, I.
AU  - De Blas, I.
AU  - Alvarez Antelo, D.
AU  - Adam, A.
AU  - Papagianni, G.
AU  - Parrado-Hernando, Gonzalo
AU  - Herc, Luka
AU  - Pulido-Sanchez, D.
AU  - De Castro, C.
AU  - Frechoso, F.
AU  - Cazcarro, I.
AU  - Arto, I.
AU  - Samso, R.
AU  - Duić, Neven
AU  - Batas Bjelić, Ilija
AU  - Pfeifer, Antun
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16220
AB  - WILIAM (Within Limit Integrated Assessment Model) is a global multiregional IAM that combines economic, social, demographic, environmental, energy and material related aspects into one system dynamics model. It aims to provide stakeholders with an open source, welldocumented model to assess the feasibility, effectiveness, costs and impacts of different sustainability policy options. The adequate representation of energy production is key to assess future sustainability pathways. The main function of the developed energy module is to estimate the primary energy requirements and related GHG emissions for satisfying the economic demand. This goal was achieved by 7 major sub-modules: (1) End-use: translates the economic demand into final energy demand through a hybrid approach combining bottom-up with energy intensities for different sectors. (2) Energy transformation: maps the entire energy conversion chain from final to primary energy, including intermediary energy commodities and an allocation function for power plant utilization. (3) Energy capacity: keeps track of the current power plant capacity stock, decommissioning of expired capacities, as well as the build-up of new capacities. An allocation function for choosing the suitable technology types for new capacities stands at the core of this sub-module. (4) Computation of the EROI of green technologies (5) Variability and storage: keeps track of sub-annual time scale effects on annual energy balances depending on the current power system setup (DSM, Storage, sector coupling). (6) Consideration of techno-sustainable potentials of RES considering geographical, resource and Energy Return on Energy Investment (EROI) constraints. (7) Computation of the energy-related GHG emissions.
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
T1  - Modelling the long-term dynamics of the energy transition accounting for socioeconomic behaviour and biophysical constraints: overview of the Wiliam Energy Module
SP  - 151
EP  - 151
UR  - https://hdl.handle.net/21.15107/rcub_dais_16220
ER  - 

@conference{
author = "Eggler, L. and Capellan-Perez, I. and De Blas, I. and Alvarez Antelo, D. and Adam, A. and Papagianni, G. and Parrado-Hernando, Gonzalo and Herc, Luka and Pulido-Sanchez, D. and De Castro, C. and Frechoso, F. and Cazcarro, I. and Arto, I. and Samso, R. and Duić, Neven and Batas Bjelić, Ilija and Pfeifer, Antun",
year = "2023",
abstract = "WILIAM (Within Limit Integrated Assessment Model) is a global multiregional IAM that combines economic, social, demographic, environmental, energy and material related aspects into one system dynamics model. It aims to provide stakeholders with an open source, welldocumented model to assess the feasibility, effectiveness, costs and impacts of different sustainability policy options. The adequate representation of energy production is key to assess future sustainability pathways. The main function of the developed energy module is to estimate the primary energy requirements and related GHG emissions for satisfying the economic demand. This goal was achieved by 7 major sub-modules: (1) End-use: translates the economic demand into final energy demand through a hybrid approach combining bottom-up with energy intensities for different sectors. (2) Energy transformation: maps the entire energy conversion chain from final to primary energy, including intermediary energy commodities and an allocation function for power plant utilization. (3) Energy capacity: keeps track of the current power plant capacity stock, decommissioning of expired capacities, as well as the build-up of new capacities. An allocation function for choosing the suitable technology types for new capacities stands at the core of this sub-module. (4) Computation of the EROI of green technologies (5) Variability and storage: keeps track of sub-annual time scale effects on annual energy balances depending on the current power system setup (DSM, Storage, sector coupling). (6) Consideration of techno-sustainable potentials of RES considering geographical, resource and Energy Return on Energy Investment (EROI) constraints. (7) Computation of the energy-related GHG emissions.",
publisher = "Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia",
title = "Modelling the long-term dynamics of the energy transition accounting for socioeconomic behaviour and biophysical constraints: overview of the Wiliam Energy Module",
pages = "151-151",
url = "https://hdl.handle.net/21.15107/rcub_dais_16220"
}

Eggler, L., Capellan-Perez, I., De Blas, I., Alvarez Antelo, D., Adam, A., Papagianni, G., Parrado-Hernando, G., Herc, L., Pulido-Sanchez, D., De Castro, C., Frechoso, F., Cazcarro, I., Arto, I., Samso, R., Duić, N., Batas Bjelić, I.,& Pfeifer, A.. (2023). Modelling the long-term dynamics of the energy transition accounting for socioeconomic behaviour and biophysical constraints: overview of the Wiliam Energy Module. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
Zagreb : Faculty of Mechanical Engineering and Naval Architecture., 151-151.
https://hdl.handle.net/21.15107/rcub_dais_16220

Eggler L, Capellan-Perez I, De Blas I, Alvarez Antelo D, Adam A, Papagianni G, Parrado-Hernando G, Herc L, Pulido-Sanchez D, De Castro C, Frechoso F, Cazcarro I, Arto I, Samso R, Duić N, Batas Bjelić I, Pfeifer A. Modelling the long-term dynamics of the energy transition accounting for socioeconomic behaviour and biophysical constraints: overview of the Wiliam Energy Module. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia. 2023;:151-151.
https://hdl.handle.net/21.15107/rcub_dais_16220 .

Eggler, L., Capellan-Perez, I., De Blas, I., Alvarez Antelo, D., Adam, A., Papagianni, G., Parrado-Hernando, Gonzalo, Herc, Luka, Pulido-Sanchez, D., De Castro, C., Frechoso, F., Cazcarro, I., Arto, I., Samso, R., Duić, Neven, Batas Bjelić, Ilija, Pfeifer, Antun, "Modelling the long-term dynamics of the energy transition accounting for socioeconomic behaviour and biophysical constraints: overview of the Wiliam Energy Module" in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia (2023):151-151,
https://hdl.handle.net/21.15107/rcub_dais_16220 .

TY  - CONF
AU  - Herc, Luka
AU  - Pfeifer, Antun
AU  - Parrado-Hernando, Gonzalo
AU  - Capellan-Perez, I.
AU  - Batas Bjelić, Ilija
AU  - Eggler, L.
AU  - Duić, Neven
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16217
AB  - This research presents the results of energy transition pathways in the different world regions. These regions are differentiated in the aspects of the availability of resources, different demand levels and distributions as well the different hourly distributions of the availability of renewable energy. Also, the differences in the regions are presented throughout different energy transition policies that are implemented. In order to model the specifics of interactions between the renewable energy generation and power to X technologies, the process of interlinking the outputs from EnergyPLAN simulations with the WILIAM (Within Limit Integrated Assessment Model) was developed. The ranges of simulations are run in EnergyPLAN and the method of regression is used to create simple relations between input and output values. Furthermore, an additional step of input data normalization was developed to speed-up the process of conducting the simulations. The research focusses on the differences in the resulting curves for relations of the flexibility technology application levels and capacity factors of variable generation. Also, the curves resulting from regression approach are compared as well as the results of implementation in WILIAM. Preliminary results show the differences in transition pathways with the regions predominantly located in the north or south focussing more on the implementation of wind and offshore wind energy, while the regions located closer to the equator such as India opting more for solar based energy systems.
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
T1  - Modelling the long-term energy transition in different regions of the world, consideration of different region-specific data
SP  - 444
EP  - 444
UR  - https://hdl.handle.net/21.15107/rcub_dais_16217
ER  - 

@conference{
author = "Herc, Luka and Pfeifer, Antun and Parrado-Hernando, Gonzalo and Capellan-Perez, I. and Batas Bjelić, Ilija and Eggler, L. and Duić, Neven",
year = "2023",
abstract = "This research presents the results of energy transition pathways in the different world regions. These regions are differentiated in the aspects of the availability of resources, different demand levels and distributions as well the different hourly distributions of the availability of renewable energy. Also, the differences in the regions are presented throughout different energy transition policies that are implemented. In order to model the specifics of interactions between the renewable energy generation and power to X technologies, the process of interlinking the outputs from EnergyPLAN simulations with the WILIAM (Within Limit Integrated Assessment Model) was developed. The ranges of simulations are run in EnergyPLAN and the method of regression is used to create simple relations between input and output values. Furthermore, an additional step of input data normalization was developed to speed-up the process of conducting the simulations. The research focusses on the differences in the resulting curves for relations of the flexibility technology application levels and capacity factors of variable generation. Also, the curves resulting from regression approach are compared as well as the results of implementation in WILIAM. Preliminary results show the differences in transition pathways with the regions predominantly located in the north or south focussing more on the implementation of wind and offshore wind energy, while the regions located closer to the equator such as India opting more for solar based energy systems.",
publisher = "Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia",
title = "Modelling the long-term energy transition in different regions of the world, consideration of different region-specific data",
pages = "444-444",
url = "https://hdl.handle.net/21.15107/rcub_dais_16217"
}

Herc, L., Pfeifer, A., Parrado-Hernando, G., Capellan-Perez, I., Batas Bjelić, I., Eggler, L.,& Duić, N.. (2023). Modelling the long-term energy transition in different regions of the world, consideration of different region-specific data. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia
Zagreb : Faculty of Mechanical Engineering and Naval Architecture., 444-444.
https://hdl.handle.net/21.15107/rcub_dais_16217

Herc L, Pfeifer A, Parrado-Hernando G, Capellan-Perez I, Batas Bjelić I, Eggler L, Duić N. Modelling the long-term energy transition in different regions of the world, consideration of different region-specific data. in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia. 2023;:444-444.
https://hdl.handle.net/21.15107/rcub_dais_16217 .

Herc, Luka, Pfeifer, Antun, Parrado-Hernando, Gonzalo, Capellan-Perez, I., Batas Bjelić, Ilija, Eggler, L., Duić, Neven, "Modelling the long-term energy transition in different regions of the world, consideration of different region-specific data" in Book of abstracts / 18th conference on sustainable development of energy, water and environment systems, September 24-29, 2023, Dubrovnik, Croatia (2023):444-444,
https://hdl.handle.net/21.15107/rcub_dais_16217 .

TY  - CONF
AU  - Batas Bjelić, Ilija
AU  - Doljak, Dejan
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15305
AB  - Previous energy strategies for Serbia had various goals in terms of renewable energy sources with the quantification of type of power plants by type, but the national energy planning did not go to the level of determining specific locations for power plants, namely photovoltaic. This caused difficulties for the responsible ministry and public companies to decide which power plants will be connected and which not. Additionally, due to a drop in investment costs, connection requests dramatically increased. In the beginning of 2023 applications for the construction of power plants totaling 14 GW in capacity were under review at public transmission company which further caused delays and stagnation in the construction of these power plants. At the same time, electricity prices for households and industries had increased by 18 and 27% respectively. During the year 2022, only 6 MW of new power plants were realized even with granting the monthly net-metering to the industry and households, which is far below the possible and realistic dynamic of Serbia's energy transition implementation. It was announced in early 2023, with the changes in legislative towards implementing the auctions principles, that the first permits will be issued for the construction of large photovoltaic power plants on land to progress towards meeting an overall capacity goal of 2-3 GW. To guide in selecting sites that will help meet this goal, we mapped 100 suitable photovoltaic power plant locations prioritized not only by energy yield, but also to prevent possible conflicts with other activities (i.e., agriculture, protected areas and cultural heritage). The mapping was carried out using available energy yield data, and geographically specific data of importance for the construction of larger photovoltaic power plants up to 10 MW in size. The 100 locations were selected as best among a much larger number of possible ones. These 100 sites occupy less than 25 km2 of land and would be enough to cover about 5% of household consumption in Serbia.
AB  - Dosadašnje energetske strategije Srbije su imale različite ciljeve u pogledu obnovljivih izvora energije sa kvantifikacijom pojedinih tipova elektrana, ali nacionalno energetsko planiranje nije išlo do nivoa određivanja konkretnih lokacija, posebno za fotonaponske elektrane. Ovo je izazvalo poteškoće nadležnom ministarstvu i javnim preduzećima jer je pad investicionih troškova ohrabrio veliki broj aplikanata za dozvole za izgradnju elektrana na pogodnim lokacijama od ukupno 14 GW, što je dodatno izazvalo zastoje i stagnaciju u izgradnji ovih elektroenergetskih objekata na zemlji. U isto vreme došlo je do poskupljenja troškova snabdevanja električnom energijom za domaćinstva 18% i 27% za privredu tokom 2022. a iste godine kroz mehanizam neto-merenja realizovano je samo oko 6 MW novih elektrana što je kao rezultat daleko ispod mogućeg, realnog nivoa i neophodne brzine sprovođenja energetske tranzicije Srbije. Početkom 2023. godine, uz izmene zakona u pravcu sprovođenja aukcija, najavljeno je da će biti izdate prve dozvole za izgradnju velikih fotonaponskih elektrana na zemljištu i ulaganja u projekte veličine nekoliko (2-3) GW. Stoga je potrebno izvršiti mapiranje i odabiranje 100 lokacija fotonaponskih elektrana kako bi se bolje razumele pogodne lokacije ne samo sa stanovišta prinosa energije, već i kako bi se predupredili eventualni konflikti sa drugim aktivnostima (poljoprivreda, zaštićena područja, kulturno nasleđe). Mapiranje je sprovedeno korišćenjem raspoloživih podataka o energetskim prinosu, kao i geografski specifičnih podataka od značaja za izgradnju većih fotonaponskih elektrana do 10 MW. Odabrano je 100 najboljih lokacija među mnogo većim brojem mogućih. Količina proizvedene energije na površini koja zauzima manje od 25 km2 bila bi dovoljna da pokrije oko 5% potrošnje domaćinstava u Srbiji.
PB  - Novi Sad : National Society of Processing and Energy in Agriculture
PB  - Novi Sad : Faculty of Agriculture
C3  - Book of Abstracts : VIII International Conference Sustainable Postharvest and Food Technologies - INOPTEP 2023 and XXXV Scientific - Professional Conference Processing And Energy in Agriculture - PTEP 2023
T1  - Selection 100 Best Locations for the Bigger Photovoltaic Power Plants in Serbia
T1  - Odabir 100 najboljih lokacija za postavljanje većih fotonaponskih elektrana u Srbiji
SP  - 7
EP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_dais_15305
ER  - 

@conference{
author = "Batas Bjelić, Ilija and Doljak, Dejan",
year = "2023",
abstract = "Previous energy strategies for Serbia had various goals in terms of renewable energy sources with the quantification of type of power plants by type, but the national energy planning did not go to the level of determining specific locations for power plants, namely photovoltaic. This caused difficulties for the responsible ministry and public companies to decide which power plants will be connected and which not. Additionally, due to a drop in investment costs, connection requests dramatically increased. In the beginning of 2023 applications for the construction of power plants totaling 14 GW in capacity were under review at public transmission company which further caused delays and stagnation in the construction of these power plants. At the same time, electricity prices for households and industries had increased by 18 and 27% respectively. During the year 2022, only 6 MW of new power plants were realized even with granting the monthly net-metering to the industry and households, which is far below the possible and realistic dynamic of Serbia's energy transition implementation. It was announced in early 2023, with the changes in legislative towards implementing the auctions principles, that the first permits will be issued for the construction of large photovoltaic power plants on land to progress towards meeting an overall capacity goal of 2-3 GW. To guide in selecting sites that will help meet this goal, we mapped 100 suitable photovoltaic power plant locations prioritized not only by energy yield, but also to prevent possible conflicts with other activities (i.e., agriculture, protected areas and cultural heritage). The mapping was carried out using available energy yield data, and geographically specific data of importance for the construction of larger photovoltaic power plants up to 10 MW in size. The 100 locations were selected as best among a much larger number of possible ones. These 100 sites occupy less than 25 km2 of land and would be enough to cover about 5% of household consumption in Serbia., Dosadašnje energetske strategije Srbije su imale različite ciljeve u pogledu obnovljivih izvora energije sa kvantifikacijom pojedinih tipova elektrana, ali nacionalno energetsko planiranje nije išlo do nivoa određivanja konkretnih lokacija, posebno za fotonaponske elektrane. Ovo je izazvalo poteškoće nadležnom ministarstvu i javnim preduzećima jer je pad investicionih troškova ohrabrio veliki broj aplikanata za dozvole za izgradnju elektrana na pogodnim lokacijama od ukupno 14 GW, što je dodatno izazvalo zastoje i stagnaciju u izgradnji ovih elektroenergetskih objekata na zemlji. U isto vreme došlo je do poskupljenja troškova snabdevanja električnom energijom za domaćinstva 18% i 27% za privredu tokom 2022. a iste godine kroz mehanizam neto-merenja realizovano je samo oko 6 MW novih elektrana što je kao rezultat daleko ispod mogućeg, realnog nivoa i neophodne brzine sprovođenja energetske tranzicije Srbije. Početkom 2023. godine, uz izmene zakona u pravcu sprovođenja aukcija, najavljeno je da će biti izdate prve dozvole za izgradnju velikih fotonaponskih elektrana na zemljištu i ulaganja u projekte veličine nekoliko (2-3) GW. Stoga je potrebno izvršiti mapiranje i odabiranje 100 lokacija fotonaponskih elektrana kako bi se bolje razumele pogodne lokacije ne samo sa stanovišta prinosa energije, već i kako bi se predupredili eventualni konflikti sa drugim aktivnostima (poljoprivreda, zaštićena područja, kulturno nasleđe). Mapiranje je sprovedeno korišćenjem raspoloživih podataka o energetskim prinosu, kao i geografski specifičnih podataka od značaja za izgradnju većih fotonaponskih elektrana do 10 MW. Odabrano je 100 najboljih lokacija među mnogo većim brojem mogućih. Količina proizvedene energije na površini koja zauzima manje od 25 km2 bila bi dovoljna da pokrije oko 5% potrošnje domaćinstava u Srbiji.",
publisher = "Novi Sad : National Society of Processing and Energy in Agriculture, Novi Sad : Faculty of Agriculture",
journal = "Book of Abstracts : VIII International Conference Sustainable Postharvest and Food Technologies - INOPTEP 2023 and XXXV Scientific - Professional Conference Processing And Energy in Agriculture - PTEP 2023",
title = "Selection 100 Best Locations for the Bigger Photovoltaic Power Plants in Serbia, Odabir 100 najboljih lokacija za postavljanje većih fotonaponskih elektrana u Srbiji",
pages = "7-8",
url = "https://hdl.handle.net/21.15107/rcub_dais_15305"
}

Batas Bjelić, I.,& Doljak, D.. (2023). Selection 100 Best Locations for the Bigger Photovoltaic Power Plants in Serbia. in Book of Abstracts : VIII International Conference Sustainable Postharvest and Food Technologies - INOPTEP 2023 and XXXV Scientific - Professional Conference Processing And Energy in Agriculture - PTEP 2023
Novi Sad : National Society of Processing and Energy in Agriculture., 7-8.
https://hdl.handle.net/21.15107/rcub_dais_15305

Batas Bjelić I, Doljak D. Selection 100 Best Locations for the Bigger Photovoltaic Power Plants in Serbia. in Book of Abstracts : VIII International Conference Sustainable Postharvest and Food Technologies - INOPTEP 2023 and XXXV Scientific - Professional Conference Processing And Energy in Agriculture - PTEP 2023. 2023;:7-8.
https://hdl.handle.net/21.15107/rcub_dais_15305 .

Batas Bjelić, Ilija, Doljak, Dejan, "Selection 100 Best Locations for the Bigger Photovoltaic Power Plants in Serbia" in Book of Abstracts : VIII International Conference Sustainable Postharvest and Food Technologies - INOPTEP 2023 and XXXV Scientific - Professional Conference Processing And Energy in Agriculture - PTEP 2023 (2023):7-8,
https://hdl.handle.net/21.15107/rcub_dais_15305 .

TY  - CONF
AU  - Batas-Bjelić, Ilija
AU  - Rajaković, Nikola
AU  - Capellan-Perez, I.
AU  - Parrado-Hernando, G.
AU  - Herc, Luka
AU  - Pfeifer, Antun
AU  - Duić, Neven
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13010
AB  - In order to integrate more and more variable renewable energy sources (VRES) electric grids play a significant role. There is an obvious need for more interconnections and more enhanced grids with more VRES. On the other side, the monetary, material, social and spatial constraints (free corridors) impose limits on grid expansions. Robust modelling of electric grids (distribution, transmission and interconnection) at World level in integrated assessment models (IAMs) is beyond the state of the art of current computation capabilities and data availability. A number of relevant input data like length of the grids, voltage levels, rated power, and after that material prices, population density, VRES shares of generation and flexibility technologies, hourly curtailments in the energy system are not sufficient to calculate explicit limitations imposed by power flows. Therefore, the idea of this paper is that in the absence of sufficient data and computability, for the first time some expert assumptions in the form of proportions are used to represent interconnection grids as an important constraint and flexibility option for variable renewable energy production, modelled at hourly level during one year using EnergyPLAN. These assumptions are about proportions of newly integrated renewable energy between transmission and distribution grids, proportions of grids to the generation plants and their utilization. Suggested method for application in WILIAM will be illustrated.
PB  - Zagreb : Faculty of mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems, May 22-26, 2022, Vlorë, Albania
T1  - Grid operation and investment limitations for variable renewable energy in integrated assessment modelling
SP  - 193
EP  - 193
UR  - https://hdl.handle.net/21.15107/rcub_dais_13010
ER  - 

@conference{
author = "Batas-Bjelić, Ilija and Rajaković, Nikola and Capellan-Perez, I. and Parrado-Hernando, G. and Herc, Luka and Pfeifer, Antun and Duić, Neven",
year = "2022",
abstract = "In order to integrate more and more variable renewable energy sources (VRES) electric grids play a significant role. There is an obvious need for more interconnections and more enhanced grids with more VRES. On the other side, the monetary, material, social and spatial constraints (free corridors) impose limits on grid expansions. Robust modelling of electric grids (distribution, transmission and interconnection) at World level in integrated assessment models (IAMs) is beyond the state of the art of current computation capabilities and data availability. A number of relevant input data like length of the grids, voltage levels, rated power, and after that material prices, population density, VRES shares of generation and flexibility technologies, hourly curtailments in the energy system are not sufficient to calculate explicit limitations imposed by power flows. Therefore, the idea of this paper is that in the absence of sufficient data and computability, for the first time some expert assumptions in the form of proportions are used to represent interconnection grids as an important constraint and flexibility option for variable renewable energy production, modelled at hourly level during one year using EnergyPLAN. These assumptions are about proportions of newly integrated renewable energy between transmission and distribution grids, proportions of grids to the generation plants and their utilization. Suggested method for application in WILIAM will be illustrated.",
publisher = "Zagreb : Faculty of mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems, May 22-26, 2022, Vlorë, Albania",
title = "Grid operation and investment limitations for variable renewable energy in integrated assessment modelling",
pages = "193-193",
url = "https://hdl.handle.net/21.15107/rcub_dais_13010"
}

Batas-Bjelić, I., Rajaković, N., Capellan-Perez, I., Parrado-Hernando, G., Herc, L., Pfeifer, A.,& Duić, N.. (2022). Grid operation and investment limitations for variable renewable energy in integrated assessment modelling. in Book of abstracts / 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems, May 22-26, 2022, Vlorë, Albania
Zagreb : Faculty of mechanical Engineering and Naval Architecture., 193-193.
https://hdl.handle.net/21.15107/rcub_dais_13010

Batas-Bjelić I, Rajaković N, Capellan-Perez I, Parrado-Hernando G, Herc L, Pfeifer A, Duić N. Grid operation and investment limitations for variable renewable energy in integrated assessment modelling. in Book of abstracts / 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems, May 22-26, 2022, Vlorë, Albania. 2022;:193-193.
https://hdl.handle.net/21.15107/rcub_dais_13010 .

Batas-Bjelić, Ilija, Rajaković, Nikola, Capellan-Perez, I., Parrado-Hernando, G., Herc, Luka, Pfeifer, Antun, Duić, Neven, "Grid operation and investment limitations for variable renewable energy in integrated assessment modelling" in Book of abstracts / 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems, May 22-26, 2022, Vlorë, Albania (2022):193-193,
https://hdl.handle.net/21.15107/rcub_dais_13010 .

TY  - JOUR
AU  - Parrado-Hernando, G.
AU  - Herc, Luka
AU  - Pfeifer, Antun
AU  - Capellán-Perez, Iñigo
AU  - Batas Bjelić, Ilija
AU  - Duić, Neven
AU  - Frechoso-Escudero, Fernando
AU  - Miguel González, Luis Javier
AU  - Gjorgievski, Vladimir
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13495
AB  - Long term-energy planning has gradually moved towards finer temporal and spatial resolutions of the energy system to design the decarbonization of the society. However, integrated assessment models (IAMs), focusing on a broader concept of sustainability transition, are typically yearly-resolution models which complicates capturing the specific supply-demand dynamics, relevant in the transition towards renewable energy sources (RES). Different methods for introducing sub-annual information are being used in IAMs, but the hourly representation of variable RES remains challenging. This article presents a method to translate the main dynamics of an hourly-resolution energy model into a yearly-resolution model. Here we test our method with the current European Union region (EU-27) by configuring and applying the hourly-resolution EnergyPLAN. Multiple linear regression analysis is applied to 174960 simulations (set by varying 39 inputs by clusters and reaching 100% renewable systems), relating the adjusted capacity factors of the technologies as well as the variation of electricity demand and natural gas consumption as a function of the options installed to manage the variable RES. The obtained results allow validation of the developed approach, which shows to be flexible and easily generalizable enough to be applied to any couple of hourly and annual-resolution models and/or country. © 2022 Elsevier Ltd
T2  - Renewable Energy
T1  - Capturing features of hourly-resolution energy models through statistical annual indicators
SP  - 1192
EP  - 1223
VL  - 197
DO  - 10.1016/j.renene.2022.07.040
UR  - https://hdl.handle.net/21.15107/rcub_dais_13495
ER  - 

@article{
author = "Parrado-Hernando, G. and Herc, Luka and Pfeifer, Antun and Capellán-Perez, Iñigo and Batas Bjelić, Ilija and Duić, Neven and Frechoso-Escudero, Fernando and Miguel González, Luis Javier and Gjorgievski, Vladimir",
year = "2022",
abstract = "Long term-energy planning has gradually moved towards finer temporal and spatial resolutions of the energy system to design the decarbonization of the society. However, integrated assessment models (IAMs), focusing on a broader concept of sustainability transition, are typically yearly-resolution models which complicates capturing the specific supply-demand dynamics, relevant in the transition towards renewable energy sources (RES). Different methods for introducing sub-annual information are being used in IAMs, but the hourly representation of variable RES remains challenging. This article presents a method to translate the main dynamics of an hourly-resolution energy model into a yearly-resolution model. Here we test our method with the current European Union region (EU-27) by configuring and applying the hourly-resolution EnergyPLAN. Multiple linear regression analysis is applied to 174960 simulations (set by varying 39 inputs by clusters and reaching 100% renewable systems), relating the adjusted capacity factors of the technologies as well as the variation of electricity demand and natural gas consumption as a function of the options installed to manage the variable RES. The obtained results allow validation of the developed approach, which shows to be flexible and easily generalizable enough to be applied to any couple of hourly and annual-resolution models and/or country. © 2022 Elsevier Ltd",
journal = "Renewable Energy",
title = "Capturing features of hourly-resolution energy models through statistical annual indicators",
pages = "1192-1223",
volume = "197",
doi = "10.1016/j.renene.2022.07.040",
url = "https://hdl.handle.net/21.15107/rcub_dais_13495"
}

Parrado-Hernando, G., Herc, L., Pfeifer, A., Capellán-Perez, I., Batas Bjelić, I., Duić, N., Frechoso-Escudero, F., Miguel González, L. J.,& Gjorgievski, V.. (2022). Capturing features of hourly-resolution energy models through statistical annual indicators. in Renewable Energy, 197, 1192-1223.
https://doi.org/10.1016/j.renene.2022.07.040
https://hdl.handle.net/21.15107/rcub_dais_13495

Parrado-Hernando G, Herc L, Pfeifer A, Capellán-Perez I, Batas Bjelić I, Duić N, Frechoso-Escudero F, Miguel González LJ, Gjorgievski V. Capturing features of hourly-resolution energy models through statistical annual indicators. in Renewable Energy. 2022;197:1192-1223.
doi:10.1016/j.renene.2022.07.040
https://hdl.handle.net/21.15107/rcub_dais_13495 .

Parrado-Hernando, G., Herc, Luka, Pfeifer, Antun, Capellán-Perez, Iñigo, Batas Bjelić, Ilija, Duić, Neven, Frechoso-Escudero, Fernando, Miguel González, Luis Javier, Gjorgievski, Vladimir, "Capturing features of hourly-resolution energy models through statistical annual indicators" in Renewable Energy, 197 (2022):1192-1223,
https://doi.org/10.1016/j.renene.2022.07.040 .,
https://hdl.handle.net/21.15107/rcub_dais_13495 .

TY  - CONF
AU  - Rimac, Goran
AU  - Batas Bjelić, Ilija
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13648
AB  - Imajući u vidu pogoršavanje uslova za poljoprivrednu proizvodnju usled klimatskih promena, manifestovano kroz porast prosečnih temperatura, oskudicu vode i ekstremne vremenske prilike, sve je više činilaca koji opravdavaju primenu agrofotonaponskih (APV) ili ’’agrivoltaic’’ sistema, uz već iskazanu zainteresovanost da se oni postave i u Srbiji. APV sistemi omogućavaju inovativno, efikasno i isplativo rešenje za istovremeno odvijanje održive poljoprivredne proizvodnje i proizvodnje obnovljive energije. Ovi sistemi povećavaju iskorišćenje zemljišta, sinergijom poljoprivredne infrastrukture sa fotonaponskom, što ruralne zajednice čini konkurentnijim i održivijim. Na ovaj način farmeri imaju priliku da razviju nov izvor prihoda bez napuštanja poljoprivredne proizvodnje. Instalisani direktno iznad poljoprivrednih kultura, solarni paneli štite biljke od prekomerne osunčanosti, toplote, održavaju vlažnost zemljišta, štite od grada i mraza, omogućavaju stabilan prinos uz istovremenu proizvodnju električne energije koja se može iskoristiti za dodatno poboljšanje poljoprivredne proizvodnje. Benefiti koje pruža primena agrivoltaic sistema se mogu povećati zahvaljujući digitalnim rešenjima koja se prilagođavaju potrebama useva optimizovanjem nivoa senčenja ili vlažnosti zemljišta u odnosu na proizvodnju električne energije. Solarna energija se može iskoristiti za pogon pumpi za navodnjavanje zamenjujući dizel generatore, kao i za procese prerade poljoprivrednih proizvoda, odnosno napajanje opreme i voznog parka na imanjima. Individualni poljoprivredni proizvođači kao i zadruge mogu imati koristi od primene ovih sistema s obzirom da dosadašnja iskustva govore o povećanju prihoda farmi od preko 30%. Tehnička i ekonomska izvodljivost agrivoltaic projekata je dokazana u mnogim zemljama, a nedostatak odgovarajućeg regulatornog okvira je verovatno najveća prepreka za iskoristivost njihovih potencijala. Investicije u ove projekte su veće u poređenju sa konvencionalnim fotonaponskom sistemima postavljenim na zemlji, pa je u ovom momentu potrebno osmisliti i primeniti određene mere podrške do postizanja pozitivnih ekonomskih efekata u Republici Srbiji (AP Vojvodini). Pored tehničkih, ekonomskih i ekoloških aspekata agrivoltaic projekata, rano uključivanje različitih učesnika u razvoju projekata, kao i lokalnog stanovništva, je ključni kriterijum za njihov uspeh. Uzimajući u obzir klimatske prilike na području Srbije (AP Vojvodine), kao i kulture koje se uzgajaju, potrebno je ispitati mogućnost primene ovih sistema prvenstveno kod povrtarskih i voćarskih kultura. Ukoliko postoji dovoljno indicija za uspešnost ovakvih projekata, preporučljivo je da se predloži jedan konkretan projekat čija bi realizacija bila dobar pokazatelj za buduće projekte ovog tipa.
AB  - Having in mind the deteriorating conditions for agricultural production due to climate change, which is reflected in rising average temperatures, water scarcity and extreme weather conditions, there are more and more factors that justify the use of agro-photovoltaic (APV) or ‘’agrivoltaic’’systems, with the already expressed interest in installing them in Serbia as well. APV systems offer an innovative, efficient and cost-effective solution for the simultaneous development of sustainable agricultural production and renewable energy production. These systems increase land use by synergizing agricultural infrastructure with photovoltaics, making rural communities more competitive and sustainable. In this way, farmers have the opportunity to develop a new source of income without leaving agricultural production. Installed directly above agricultural crops, solar panels protect plants from excessive sunlight, heat, maintain soil moisture, protect from hail and frost, enabling a stable yield with the simultaneous production of electricity that can be used to further improve agricultural production. The benefits of using an APV system can be increased thanks to digital solutions being adapted to crop needs by optimizing the level of shading or soil moisture in relation to electricity production. Solar energy can be used to drive irrigation pumps, thus replacing diesel generators, as well as for the purpose of processing agricultural products and powering equipment and rolling stock on farms. Individual farmers as well as cooperatives can benefit from the application of these systems, given that the experience so far shows an increase in farm income of over 30%. The technical and economic feasibility of APV projects has been proven in many countries, and the lack of an appropriate regulatory framework is probably the biggest obstacle for their potential to be realized. Investments in these projects are higher compared to conventional photovoltaic systems installed on the ground so, at this moment, it is necessary to design and implement certain support measures to achieve positive economic effects in the Republic of Serbia (AP Vojvodina). In the case that there are enough indications for the success of these projects, it is advisable to propose one specific project whose implementation would be a good indicator for future projects of this type.
PB  - Beograd : Savez energetičara
C3  - Zbornik apstrakata = Book of abstracts / 37. Međunarodno savetovanje Energetika 2022 - Dugoročni i kratkoročni izazovi započete energetske tranzicije u Srbiji, 21-24. jun 2022. godine, Zlatibor
T1  - Agro-fotonaponski sistemi kao sinergija poljoprivredne i proizvodnje električne energije
T1  - Agro-photovoltaic systems as a synergy of agricultural and electricity production
SP  - 28
EP  - 28
UR  - https://hdl.handle.net/21.15107/rcub_dais_13648
ER  - 

@conference{
author = "Rimac, Goran and Batas Bjelić, Ilija",
year = "2022",
abstract = "Imajući u vidu pogoršavanje uslova za poljoprivrednu proizvodnju usled klimatskih promena, manifestovano kroz porast prosečnih temperatura, oskudicu vode i ekstremne vremenske prilike, sve je više činilaca koji opravdavaju primenu agrofotonaponskih (APV) ili ’’agrivoltaic’’ sistema, uz već iskazanu zainteresovanost da se oni postave i u Srbiji. APV sistemi omogućavaju inovativno, efikasno i isplativo rešenje za istovremeno odvijanje održive poljoprivredne proizvodnje i proizvodnje obnovljive energije. Ovi sistemi povećavaju iskorišćenje zemljišta, sinergijom poljoprivredne infrastrukture sa fotonaponskom, što ruralne zajednice čini konkurentnijim i održivijim. Na ovaj način farmeri imaju priliku da razviju nov izvor prihoda bez napuštanja poljoprivredne proizvodnje. Instalisani direktno iznad poljoprivrednih kultura, solarni paneli štite biljke od prekomerne osunčanosti, toplote, održavaju vlažnost zemljišta, štite od grada i mraza, omogućavaju stabilan prinos uz istovremenu proizvodnju električne energije koja se može iskoristiti za dodatno poboljšanje poljoprivredne proizvodnje. Benefiti koje pruža primena agrivoltaic sistema se mogu povećati zahvaljujući digitalnim rešenjima koja se prilagođavaju potrebama useva optimizovanjem nivoa senčenja ili vlažnosti zemljišta u odnosu na proizvodnju električne energije. Solarna energija se može iskoristiti za pogon pumpi za navodnjavanje zamenjujući dizel generatore, kao i za procese prerade poljoprivrednih proizvoda, odnosno napajanje opreme i voznog parka na imanjima. Individualni poljoprivredni proizvođači kao i zadruge mogu imati koristi od primene ovih sistema s obzirom da dosadašnja iskustva govore o povećanju prihoda farmi od preko 30%. Tehnička i ekonomska izvodljivost agrivoltaic projekata je dokazana u mnogim zemljama, a nedostatak odgovarajućeg regulatornog okvira je verovatno najveća prepreka za iskoristivost njihovih potencijala. Investicije u ove projekte su veće u poređenju sa konvencionalnim fotonaponskom sistemima postavljenim na zemlji, pa je u ovom momentu potrebno osmisliti i primeniti određene mere podrške do postizanja pozitivnih ekonomskih efekata u Republici Srbiji (AP Vojvodini). Pored tehničkih, ekonomskih i ekoloških aspekata agrivoltaic projekata, rano uključivanje različitih učesnika u razvoju projekata, kao i lokalnog stanovništva, je ključni kriterijum za njihov uspeh. Uzimajući u obzir klimatske prilike na području Srbije (AP Vojvodine), kao i kulture koje se uzgajaju, potrebno je ispitati mogućnost primene ovih sistema prvenstveno kod povrtarskih i voćarskih kultura. Ukoliko postoji dovoljno indicija za uspešnost ovakvih projekata, preporučljivo je da se predloži jedan konkretan projekat čija bi realizacija bila dobar pokazatelj za buduće projekte ovog tipa., Having in mind the deteriorating conditions for agricultural production due to climate change, which is reflected in rising average temperatures, water scarcity and extreme weather conditions, there are more and more factors that justify the use of agro-photovoltaic (APV) or ‘’agrivoltaic’’systems, with the already expressed interest in installing them in Serbia as well. APV systems offer an innovative, efficient and cost-effective solution for the simultaneous development of sustainable agricultural production and renewable energy production. These systems increase land use by synergizing agricultural infrastructure with photovoltaics, making rural communities more competitive and sustainable. In this way, farmers have the opportunity to develop a new source of income without leaving agricultural production. Installed directly above agricultural crops, solar panels protect plants from excessive sunlight, heat, maintain soil moisture, protect from hail and frost, enabling a stable yield with the simultaneous production of electricity that can be used to further improve agricultural production. The benefits of using an APV system can be increased thanks to digital solutions being adapted to crop needs by optimizing the level of shading or soil moisture in relation to electricity production. Solar energy can be used to drive irrigation pumps, thus replacing diesel generators, as well as for the purpose of processing agricultural products and powering equipment and rolling stock on farms. Individual farmers as well as cooperatives can benefit from the application of these systems, given that the experience so far shows an increase in farm income of over 30%. The technical and economic feasibility of APV projects has been proven in many countries, and the lack of an appropriate regulatory framework is probably the biggest obstacle for their potential to be realized. Investments in these projects are higher compared to conventional photovoltaic systems installed on the ground so, at this moment, it is necessary to design and implement certain support measures to achieve positive economic effects in the Republic of Serbia (AP Vojvodina). In the case that there are enough indications for the success of these projects, it is advisable to propose one specific project whose implementation would be a good indicator for future projects of this type.",
publisher = "Beograd : Savez energetičara",
journal = "Zbornik apstrakata = Book of abstracts / 37. Međunarodno savetovanje Energetika 2022 - Dugoročni i kratkoročni izazovi započete energetske tranzicije u Srbiji, 21-24. jun 2022. godine, Zlatibor",
title = "Agro-fotonaponski sistemi kao sinergija poljoprivredne i proizvodnje električne energije, Agro-photovoltaic systems as a synergy of agricultural and electricity production",
pages = "28-28",
url = "https://hdl.handle.net/21.15107/rcub_dais_13648"
}

Rimac, G.,& Batas Bjelić, I.. (2022). Agro-fotonaponski sistemi kao sinergija poljoprivredne i proizvodnje električne energije. in Zbornik apstrakata = Book of abstracts / 37. Međunarodno savetovanje Energetika 2022 - Dugoročni i kratkoročni izazovi započete energetske tranzicije u Srbiji, 21-24. jun 2022. godine, Zlatibor
Beograd : Savez energetičara., 28-28.
https://hdl.handle.net/21.15107/rcub_dais_13648

Rimac G, Batas Bjelić I. Agro-fotonaponski sistemi kao sinergija poljoprivredne i proizvodnje električne energije. in Zbornik apstrakata = Book of abstracts / 37. Međunarodno savetovanje Energetika 2022 - Dugoročni i kratkoročni izazovi započete energetske tranzicije u Srbiji, 21-24. jun 2022. godine, Zlatibor. 2022;:28-28.
https://hdl.handle.net/21.15107/rcub_dais_13648 .

Rimac, Goran, Batas Bjelić, Ilija, "Agro-fotonaponski sistemi kao sinergija poljoprivredne i proizvodnje električne energije" in Zbornik apstrakata = Book of abstracts / 37. Međunarodno savetovanje Energetika 2022 - Dugoročni i kratkoročni izazovi započete energetske tranzicije u Srbiji, 21-24. jun 2022. godine, Zlatibor (2022):28-28,
https://hdl.handle.net/21.15107/rcub_dais_13648 .

TY  - CONF
AU  - Batas-Bjelić, Ilija
AU  - Anđelković, Uroš
AU  - Stojanović, Boban
AU  - Georgijević, Milosav
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13012
AB  - Energy systems of the future should enable transition to clean energy and reduction of CO2 emission. Various options are under consideration and research. One direction of development are photovoltaic, and rechargeable batteries used to store the electricity needed for vehicles and stationary systems (1,2). At the current technological level and market attractiveness among rechargeable batteries significant group are those based on lithium. EU production of raw materials for all batteries is about 1%. Growing demand for lithium are expected in 2050 to be 10-50 times higher than 2018. A lithium deficit in the market is expected (3,4). The companies are searching new locations for lithium mining and production facilities in order to compensate for the deficit.
The mineral named Jadarit found in Serbia, contains lithium, sodium, boron and silica. Estimated reserves of Jadarit are of low significance for World production of lithium, but may be significant at EU level and for Serbian economy. Certain companies are interested to enter the production chain from Jadarit. These companies present the possibility for future industrial battery development in Serbia, which may lead innovative final products. They claim optimistic 3-15% increase of GDP (5). Public debate provided argumented shortcomings of currently proposed technology for lithium extraction from Jadarit (6). Major concerns are regarding permanent devastation of lush ecosystem, fertile soil, drinking water, air pollution. These non-monetary assets and their contribution to GDP should be monetized as sine qua non for objective cost-benefit analysis. Therefore, instead of polarization, public debate that identifies key critical points in technology of lithium extraction and its effects on human health and environment provides basis for future research that will develop new technologies capable to protect environment.
PB  - Belgrade : University of Belgrade - Faculty of Physical Chemistry
C3  - Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022
T1  - Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards
SP  - 28
EP  - 28
UR  - https://hdl.handle.net/21.15107/rcub_dais_13012
ER  - 

@conference{
author = "Batas-Bjelić, Ilija and Anđelković, Uroš and Stojanović, Boban and Georgijević, Milosav",
year = "2022",
abstract = "Energy systems of the future should enable transition to clean energy and reduction of CO2 emission. Various options are under consideration and research. One direction of development are photovoltaic, and rechargeable batteries used to store the electricity needed for vehicles and stationary systems (1,2). At the current technological level and market attractiveness among rechargeable batteries significant group are those based on lithium. EU production of raw materials for all batteries is about 1%. Growing demand for lithium are expected in 2050 to be 10-50 times higher than 2018. A lithium deficit in the market is expected (3,4). The companies are searching new locations for lithium mining and production facilities in order to compensate for the deficit.
The mineral named Jadarit found in Serbia, contains lithium, sodium, boron and silica. Estimated reserves of Jadarit are of low significance for World production of lithium, but may be significant at EU level and for Serbian economy. Certain companies are interested to enter the production chain from Jadarit. These companies present the possibility for future industrial battery development in Serbia, which may lead innovative final products. They claim optimistic 3-15% increase of GDP (5). Public debate provided argumented shortcomings of currently proposed technology for lithium extraction from Jadarit (6). Major concerns are regarding permanent devastation of lush ecosystem, fertile soil, drinking water, air pollution. These non-monetary assets and their contribution to GDP should be monetized as sine qua non for objective cost-benefit analysis. Therefore, instead of polarization, public debate that identifies key critical points in technology of lithium extraction and its effects on human health and environment provides basis for future research that will develop new technologies capable to protect environment.",
publisher = "Belgrade : University of Belgrade - Faculty of Physical Chemistry",
journal = "Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022",
title = "Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards",
pages = "28-28",
url = "https://hdl.handle.net/21.15107/rcub_dais_13012"
}

Batas-Bjelić, I., Anđelković, U., Stojanović, B.,& Georgijević, M.. (2022). Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards. in Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022
Belgrade : University of Belgrade - Faculty of Physical Chemistry., 28-28.
https://hdl.handle.net/21.15107/rcub_dais_13012

Batas-Bjelić I, Anđelković U, Stojanović B, Georgijević M. Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards. in Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022. 2022;:28-28.
https://hdl.handle.net/21.15107/rcub_dais_13012 .

Batas-Bjelić, Ilija, Anđelković, Uroš, Stojanović, Boban, Georgijević, Milosav, "Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards" in Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022 (2022):28-28,
https://hdl.handle.net/21.15107/rcub_dais_13012 .

TY  - CONF
AU  - Batas-Bjelić, Ilija
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13011
AB  - Tematika primene fotonaponskih elemenata u poljoprivredi prvi put se spominje u istraživanjima u Nemačkoj 1982. godine, dok se na prostoru Srbije prvi radovi pojavljuju već 1986.godine. Ideja primeneje varirala od države do države sa vremenom i padom cena panela. Ujednom periodu dokje cena panela bila visoka akcenat je bio na optimalnom pozicioniranju panela na najboljim lokacijama, što je dovelo do konflikta sa poljoprivrednom proizvodnjom. Sa padom cene panela, i pojavom dvostranih panela otvaraju se mogućnosti za vertikalno pozicioniranje ali i povećanje razmaka između redova kako bi se poljoprivredna proizvodnja nesmetano obavljala. Poslednja istraživanja pokazuju da je na ovaj način moguće povećati i poljoprivrednu proizvodju i obezbediti dodatne količine električne energije za poljoprivredu. Dodatne količine energije za poljiprivredu mogu biti iskorišćene za produžavanje osvetljenosti biljaka, ali i ostale delatnosti navodnjavanje, grejanje, hlađenje, transport, proizvodnja organskog gnojiva itd. Stoga se odustalo od prvobitnih ideja, tj. umesto da se energija proizvodi na racun poljoprivrede, ideja je da se poveca proizvodnja na racun optimalnog iskoriscenja sunca. Ovoje od posebnog značaja u situaciji finansijskog pritiska na sektor poljoprivrede usled energetskih šokova (2021-2022. godine) koji su doveli do povećanja cene sirove nafte. Takođe očekuje se da troškovi ugljenično intenzivne poljoprivrede budu rasli uz primenu mera prekogranične kontrole i oporezivanja emisija. U radu će biti prikazano stanje u oblasti inovativne primene fotonaponskih elemenata u poljoprivredi kroz pregled najznačajnijih publikacija i predložiti najpodesniji koncept ekonomski optimalnog iskorišćenja sunčeve energije na studijama slučaja Nemačke i Srbije.
PB  - Novi Sad : Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi
PB  - Novi Sad : Poljoprivredni fakultet
C3  - Zbornik izvoda / XXXIV nacionalna konferencija Procesna tehnika i energetika u poljoprivredi - PTEP 2022, 03-08. april 2022, Sokobanja, Hotel „Moravica“, Srbija
T1  - Ekonomski optimalna primena fotonaponskih elemenata u poljoprivredi: Nemačka i Srbija
SP  - 3
EP  - 3
UR  - https://hdl.handle.net/21.15107/rcub_dais_13011
ER  - 

@conference{
author = "Batas-Bjelić, Ilija",
year = "2022",
abstract = "Tematika primene fotonaponskih elemenata u poljoprivredi prvi put se spominje u istraživanjima u Nemačkoj 1982. godine, dok se na prostoru Srbije prvi radovi pojavljuju već 1986.godine. Ideja primeneje varirala od države do države sa vremenom i padom cena panela. Ujednom periodu dokje cena panela bila visoka akcenat je bio na optimalnom pozicioniranju panela na najboljim lokacijama, što je dovelo do konflikta sa poljoprivrednom proizvodnjom. Sa padom cene panela, i pojavom dvostranih panela otvaraju se mogućnosti za vertikalno pozicioniranje ali i povećanje razmaka između redova kako bi se poljoprivredna proizvodnja nesmetano obavljala. Poslednja istraživanja pokazuju da je na ovaj način moguće povećati i poljoprivrednu proizvodju i obezbediti dodatne količine električne energije za poljoprivredu. Dodatne količine energije za poljiprivredu mogu biti iskorišćene za produžavanje osvetljenosti biljaka, ali i ostale delatnosti navodnjavanje, grejanje, hlađenje, transport, proizvodnja organskog gnojiva itd. Stoga se odustalo od prvobitnih ideja, tj. umesto da se energija proizvodi na racun poljoprivrede, ideja je da se poveca proizvodnja na racun optimalnog iskoriscenja sunca. Ovoje od posebnog značaja u situaciji finansijskog pritiska na sektor poljoprivrede usled energetskih šokova (2021-2022. godine) koji su doveli do povećanja cene sirove nafte. Takođe očekuje se da troškovi ugljenično intenzivne poljoprivrede budu rasli uz primenu mera prekogranične kontrole i oporezivanja emisija. U radu će biti prikazano stanje u oblasti inovativne primene fotonaponskih elemenata u poljoprivredi kroz pregled najznačajnijih publikacija i predložiti najpodesniji koncept ekonomski optimalnog iskorišćenja sunčeve energije na studijama slučaja Nemačke i Srbije.",
publisher = "Novi Sad : Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi, Novi Sad : Poljoprivredni fakultet",
journal = "Zbornik izvoda / XXXIV nacionalna konferencija Procesna tehnika i energetika u poljoprivredi - PTEP 2022, 03-08. april 2022, Sokobanja, Hotel „Moravica“, Srbija",
title = "Ekonomski optimalna primena fotonaponskih elemenata u poljoprivredi: Nemačka i Srbija",
pages = "3-3",
url = "https://hdl.handle.net/21.15107/rcub_dais_13011"
}

Batas-Bjelić, I.. (2022). Ekonomski optimalna primena fotonaponskih elemenata u poljoprivredi: Nemačka i Srbija. in Zbornik izvoda / XXXIV nacionalna konferencija Procesna tehnika i energetika u poljoprivredi - PTEP 2022, 03-08. april 2022, Sokobanja, Hotel „Moravica“, Srbija
Novi Sad : Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi., 3-3.
https://hdl.handle.net/21.15107/rcub_dais_13011

Batas-Bjelić I. Ekonomski optimalna primena fotonaponskih elemenata u poljoprivredi: Nemačka i Srbija. in Zbornik izvoda / XXXIV nacionalna konferencija Procesna tehnika i energetika u poljoprivredi - PTEP 2022, 03-08. april 2022, Sokobanja, Hotel „Moravica“, Srbija. 2022;:3-3.
https://hdl.handle.net/21.15107/rcub_dais_13011 .

Batas-Bjelić, Ilija, "Ekonomski optimalna primena fotonaponskih elemenata u poljoprivredi: Nemačka i Srbija" in Zbornik izvoda / XXXIV nacionalna konferencija Procesna tehnika i energetika u poljoprivredi - PTEP 2022, 03-08. april 2022, Sokobanja, Hotel „Moravica“, Srbija (2022):3-3,
https://hdl.handle.net/21.15107/rcub_dais_13011 .

TY  - CONF
AU  - Batas-Bjelić, Ilija
AU  - Anđelković, Uroš
AU  - Stojanović, Boban
AU  - Georgijević, Milosav
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13015
AB  - Energy systems of the future should enable transition to clean energy and reduction of CO2 emission. Various options are under consideration and research. One direction of development are photovoltaic, and rechargeable batteries used to store the electricity needed for vehicles and stationary systems (1,2). At the current technological level and market attractiveness among rechargeable batteries significant group are those based on lithium. EU production of raw materials for all batteries is about 1%. Growing demand for lithium are expected in 2050 to be 10-50 times higher than 2018. A lithium deficit in the market is expected (3,4). The companies are searching new locations for lithium mining and production facilities in order to compensate for the deficit.The mineral named Jadarit found in Serbia, contains lithium, sodium, boron and silica. Estimated reserves of Jadarit are of low significance for World production of lithium, but may be significant at EU level and for Serbian economy. Certain companies are interested to enter the production chain from Jadarit. These companies present the possibility for future industrial battery development in Serbia, which may lead innovative final products. They claim optimistic 3-15% increase of GDP (5). Public debate provided argumented shortcomings of currently proposed technology for lithium extraction from Jadarit (6). Major concerns are regarding permanent devastation of lush ecosystem, fertile soil, drinking water, air pollution. These non-monetary assets and their contribution to GDP should be monetized as sine qua non for objective cost-benefit analysis. Therefore, instead of polarization, public debate that identifies key critical points in technology of lithium extraction and its effects on human health and environment provides basis for future research that will develop new technologies capable to protect environment.
T1  - Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards
UR  - https://hdl.handle.net/21.15107/rcub_dais_13015
ER  - 

@conference{
author = "Batas-Bjelić, Ilija and Anđelković, Uroš and Stojanović, Boban and Georgijević, Milosav",
year = "2022",
abstract = "Energy systems of the future should enable transition to clean energy and reduction of CO2 emission. Various options are under consideration and research. One direction of development are photovoltaic, and rechargeable batteries used to store the electricity needed for vehicles and stationary systems (1,2). At the current technological level and market attractiveness among rechargeable batteries significant group are those based on lithium. EU production of raw materials for all batteries is about 1%. Growing demand for lithium are expected in 2050 to be 10-50 times higher than 2018. A lithium deficit in the market is expected (3,4). The companies are searching new locations for lithium mining and production facilities in order to compensate for the deficit.The mineral named Jadarit found in Serbia, contains lithium, sodium, boron and silica. Estimated reserves of Jadarit are of low significance for World production of lithium, but may be significant at EU level and for Serbian economy. Certain companies are interested to enter the production chain from Jadarit. These companies present the possibility for future industrial battery development in Serbia, which may lead innovative final products. They claim optimistic 3-15% increase of GDP (5). Public debate provided argumented shortcomings of currently proposed technology for lithium extraction from Jadarit (6). Major concerns are regarding permanent devastation of lush ecosystem, fertile soil, drinking water, air pollution. These non-monetary assets and their contribution to GDP should be monetized as sine qua non for objective cost-benefit analysis. Therefore, instead of polarization, public debate that identifies key critical points in technology of lithium extraction and its effects on human health and environment provides basis for future research that will develop new technologies capable to protect environment.",
title = "Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards",
url = "https://hdl.handle.net/21.15107/rcub_dais_13015"
}

Batas-Bjelić, I., Anđelković, U., Stojanović, B.,& Georgijević, M.. (2022). Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards. .
https://hdl.handle.net/21.15107/rcub_dais_13015

Batas-Bjelić I, Anđelković U, Stojanović B, Georgijević M. Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards. 2022;.
https://hdl.handle.net/21.15107/rcub_dais_13015 .

Batas-Bjelić, Ilija, Anđelković, Uroš, Stojanović, Boban, Georgijević, Milosav, "Challenges in Sustainable Use of Lithium for Highly Innovative Final Products Created and Made in Serbia with EU Environmental Standards" (2022),
https://hdl.handle.net/21.15107/rcub_dais_13015 .

TY  - JOUR
AU  - Pfeifer, Antun
AU  - Herc, Luka
AU  - Batas-Bjelić, Ilija
AU  - Duić, Neven
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11648
AB  - Recent European Green Deal includes decision to become carbon neutral and even carbon negative region in order to tackle the climate crisis. Main technical challenge and a key factor in techno-economic analysis of the energy system of the future, based on variable renewable energy sources, is their variable production and its integration. In order to deal with this problem in long-term energy planning, different approaches have been tried, focusing on overcapacity, storage capacities and sectors coupling with heating and transport. In this research, different flexibility options, storage and demand response technologies are modelled on a national energy systems level. With the case study area modelled in EnergyPLAN model, the goal of the research is to show how each flexibility option influences the economically feasible generation capacities of renewable energy sources, storage technologies and demand response in order to reach a certain share of renewable energy in final energy consumed. To follow the numerous possible configurations of the system, flexibility index for each option and a flexibility vector for each scenario are introduced. Results show which flexibility options play key role in important steps of energy transition to 70%, 80%, 90% and 100% RES energy system.
PB  - Elsevier BV
T2  - Energy Conversion and Management
T1  - Flexibility index and decreasing the costs in energy systems with high share of renewable energy
SP  - 114258
VL  - 240
DO  - 10.1016/j.enconman.2021.114258
UR  - https://hdl.handle.net/21.15107/rcub_dais_11648
ER  - 

@article{
author = "Pfeifer, Antun and Herc, Luka and Batas-Bjelić, Ilija and Duić, Neven",
year = "2021",
abstract = "Recent European Green Deal includes decision to become carbon neutral and even carbon negative region in order to tackle the climate crisis. Main technical challenge and a key factor in techno-economic analysis of the energy system of the future, based on variable renewable energy sources, is their variable production and its integration. In order to deal with this problem in long-term energy planning, different approaches have been tried, focusing on overcapacity, storage capacities and sectors coupling with heating and transport. In this research, different flexibility options, storage and demand response technologies are modelled on a national energy systems level. With the case study area modelled in EnergyPLAN model, the goal of the research is to show how each flexibility option influences the economically feasible generation capacities of renewable energy sources, storage technologies and demand response in order to reach a certain share of renewable energy in final energy consumed. To follow the numerous possible configurations of the system, flexibility index for each option and a flexibility vector for each scenario are introduced. Results show which flexibility options play key role in important steps of energy transition to 70%, 80%, 90% and 100% RES energy system.",
publisher = "Elsevier BV",
journal = "Energy Conversion and Management",
title = "Flexibility index and decreasing the costs in energy systems with high share of renewable energy",
pages = "114258",
volume = "240",
doi = "10.1016/j.enconman.2021.114258",
url = "https://hdl.handle.net/21.15107/rcub_dais_11648"
}

Pfeifer, A., Herc, L., Batas-Bjelić, I.,& Duić, N.. (2021). Flexibility index and decreasing the costs in energy systems with high share of renewable energy. in Energy Conversion and Management
Elsevier BV., 240, 114258.
https://doi.org/10.1016/j.enconman.2021.114258
https://hdl.handle.net/21.15107/rcub_dais_11648

Pfeifer A, Herc L, Batas-Bjelić I, Duić N. Flexibility index and decreasing the costs in energy systems with high share of renewable energy. in Energy Conversion and Management. 2021;240:114258.
doi:10.1016/j.enconman.2021.114258
https://hdl.handle.net/21.15107/rcub_dais_11648 .

Pfeifer, Antun, Herc, Luka, Batas-Bjelić, Ilija, Duić, Neven, "Flexibility index and decreasing the costs in energy systems with high share of renewable energy" in Energy Conversion and Management, 240 (2021):114258,
https://doi.org/10.1016/j.enconman.2021.114258 .,
https://hdl.handle.net/21.15107/rcub_dais_11648 .

TY  - CONF
AU  - Vujasinović, Jovan
AU  - Savić, Goran
AU  - Batas-Bjelić, Ilija
AU  - Rajaković, Nikola
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12247
AB  - This paper describes the importance of the interoperability in smart metering systems for modern distribution system operators. The lack of interoperability significantly increases the costs of smart metering system implementation for distribution system operators, especially the costs of purchasing new equipment. The replacement, cleanup and maintenance of electricity meters produced by different manufacturers, which are not interoperable, are also much more complex and expensive. Furthermore, without the interoperability, the system cannot be observable, i.e. the observability exists only for some particular segments of the system. This prevents many functionalities of distribution management system. In terms of interoperability, smart metering systems have gone through four different stages. A comparison of the system implementation costs for these four stages is presented for distribution system operator of Serbia.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT)
T1  - Decreasing the implementation costs of smart metering systems with interoperability
SP  - 370
EP  - 373
DO  - 10.1109/MetroInd4.0IoT51437.2021.9488512
UR  - https://hdl.handle.net/21.15107/rcub_dais_12247
ER  - 

@conference{
author = "Vujasinović, Jovan and Savić, Goran and Batas-Bjelić, Ilija and Rajaković, Nikola",
year = "2021",
abstract = "This paper describes the importance of the interoperability in smart metering systems for modern distribution system operators. The lack of interoperability significantly increases the costs of smart metering system implementation for distribution system operators, especially the costs of purchasing new equipment. The replacement, cleanup and maintenance of electricity meters produced by different manufacturers, which are not interoperable, are also much more complex and expensive. Furthermore, without the interoperability, the system cannot be observable, i.e. the observability exists only for some particular segments of the system. This prevents many functionalities of distribution management system. In terms of interoperability, smart metering systems have gone through four different stages. A comparison of the system implementation costs for these four stages is presented for distribution system operator of Serbia.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT)",
title = "Decreasing the implementation costs of smart metering systems with interoperability",
pages = "370-373",
doi = "10.1109/MetroInd4.0IoT51437.2021.9488512",
url = "https://hdl.handle.net/21.15107/rcub_dais_12247"
}

Vujasinović, J., Savić, G., Batas-Bjelić, I.,& Rajaković, N.. (2021). Decreasing the implementation costs of smart metering systems with interoperability. in 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT)
Institute of Electrical and Electronics Engineers (IEEE)., 370-373.
https://doi.org/10.1109/MetroInd4.0IoT51437.2021.9488512
https://hdl.handle.net/21.15107/rcub_dais_12247

Vujasinović J, Savić G, Batas-Bjelić I, Rajaković N. Decreasing the implementation costs of smart metering systems with interoperability. in 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT). 2021;:370-373.
doi:10.1109/MetroInd4.0IoT51437.2021.9488512
https://hdl.handle.net/21.15107/rcub_dais_12247 .

Vujasinović, Jovan, Savić, Goran, Batas-Bjelić, Ilija, Rajaković, Nikola, "Decreasing the implementation costs of smart metering systems with interoperability" in 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT) (2021):370-373,
https://doi.org/10.1109/MetroInd4.0IoT51437.2021.9488512 .,
https://hdl.handle.net/21.15107/rcub_dais_12247 .

TY  - CONF
AU  - Parrado-Hernando, Gonzalo
AU  - Pfeifer, Antun
AU  - Herc, Luka
AU  - Gjorgievski, Vladimir
AU  - Batas-Bjelić, Ilija
AU  - Duić, Neven
AU  - Frechoso, Fernando
AU  - Miguel González, Luis Javier
AU  - Capellán-Perez, Iñigo
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12290
AB  - Working on holistic approaches that aim to capture a wide range of knowledge, researchers are usually faced with phenomena characterized by different time and geographical scales. This is the case of energy systems and Integrated Assessment Models (IAMs). More specifically, the nature of the variable renewable energy supply (VRES) has traditionally posed a barrier to accurately capturing the effects inflicted by VRES in the energy system. This research provides a soft link between an energy system model running with an hourly time step, on the one hand, and a yearly-based IAM, on the other hand, by the implementation of an emulator. The proposal here presented is a bridge, based on different types of knowledge, which successfully allows the flow of information between time scales. Results achieve a 100% renewable energy system on a case of Bulgaria. After a brief literature review on the topic, the method is explained in detail, including some results between EnergyPLAN (energy system model) and MEDEAS (Integrated Assessment Model, IAM) for Bulgaria. Results show that the ability of assessment is notably increased from the previous MEDEAS version. Finally, both results and limitations of this method are discussed. The authors hope this article captures interest in the field of IAMs, especially those which address with energy transition studies.
PB  - Zagreb : SDEWES
C3  - Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES
T1  - Modelling of 100% Renewable Energy Systems in Integrated Assessment Models by multi-timeframe regression analysis
SP  - 0128
UR  - https://hdl.handle.net/21.15107/rcub_dais_12290
ER  - 

@conference{
author = "Parrado-Hernando, Gonzalo and Pfeifer, Antun and Herc, Luka and Gjorgievski, Vladimir and Batas-Bjelić, Ilija and Duić, Neven and Frechoso, Fernando and Miguel González, Luis Javier and Capellán-Perez, Iñigo",
year = "2021",
abstract = "Working on holistic approaches that aim to capture a wide range of knowledge, researchers are usually faced with phenomena characterized by different time and geographical scales. This is the case of energy systems and Integrated Assessment Models (IAMs). More specifically, the nature of the variable renewable energy supply (VRES) has traditionally posed a barrier to accurately capturing the effects inflicted by VRES in the energy system. This research provides a soft link between an energy system model running with an hourly time step, on the one hand, and a yearly-based IAM, on the other hand, by the implementation of an emulator. The proposal here presented is a bridge, based on different types of knowledge, which successfully allows the flow of information between time scales. Results achieve a 100% renewable energy system on a case of Bulgaria. After a brief literature review on the topic, the method is explained in detail, including some results between EnergyPLAN (energy system model) and MEDEAS (Integrated Assessment Model, IAM) for Bulgaria. Results show that the ability of assessment is notably increased from the previous MEDEAS version. Finally, both results and limitations of this method are discussed. The authors hope this article captures interest in the field of IAMs, especially those which address with energy transition studies.",
publisher = "Zagreb : SDEWES",
journal = "Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES",
title = "Modelling of 100% Renewable Energy Systems in Integrated Assessment Models by multi-timeframe regression analysis",
pages = "0128",
url = "https://hdl.handle.net/21.15107/rcub_dais_12290"
}

Parrado-Hernando, G., Pfeifer, A., Herc, L., Gjorgievski, V., Batas-Bjelić, I., Duić, N., Frechoso, F., Miguel González, L. J.,& Capellán-Perez, I.. (2021). Modelling of 100% Renewable Energy Systems in Integrated Assessment Models by multi-timeframe regression analysis. in Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES
Zagreb : SDEWES., 0128.
https://hdl.handle.net/21.15107/rcub_dais_12290

Parrado-Hernando G, Pfeifer A, Herc L, Gjorgievski V, Batas-Bjelić I, Duić N, Frechoso F, Miguel González LJ, Capellán-Perez I. Modelling of 100% Renewable Energy Systems in Integrated Assessment Models by multi-timeframe regression analysis. in Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES. 2021;:0128.
https://hdl.handle.net/21.15107/rcub_dais_12290 .

Parrado-Hernando, Gonzalo, Pfeifer, Antun, Herc, Luka, Gjorgievski, Vladimir, Batas-Bjelić, Ilija, Duić, Neven, Frechoso, Fernando, Miguel González, Luis Javier, Capellán-Perez, Iñigo, "Modelling of 100% Renewable Energy Systems in Integrated Assessment Models by multi-timeframe regression analysis" in Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES (2021):0128,
https://hdl.handle.net/21.15107/rcub_dais_12290 .

TY  - JOUR
AU  - Stratimirović, Đorđe
AU  - Batas-Bjelić, Ilija
AU  - Đurđevic, Vladimir
AU  - Blešić, Suzana
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/10096
AB  - In this paper we assessed changes in scaling properties of the river Danube level and flow data, associated with building of Djerdap/Iron Gates hydrological power plants positioned on the border of Romania and Serbia. We used detrended fluctuation analysis (DFA), wavelet transform spectral analysis (WTS) and wavelet modulus maxima method (WTMM) to investigate time series of measurements from hydrological stations in the vicinity of dams and in the area of up to 480 km upstream from dams, and time series of simulated NOAA-CIRES 20th Century Global Reanalysis precipitation data for the Djerdap/Iron Gates region. By comparing river dynamics during the periods before and after construction of dams, we were able to register changes in scaling that are different for recordings from upstream and from downstream (from dams) areas. We found that damming caused appearance of human-made or enhancement of natural cycles in the small time scales region, which largely influenced the change in temporal scaling in downstream recording stations. We additionally found disappearance or decline in the amplitude of large-time-scale cycles as a result of damming, which changed the dynamics of upstream data. The most prominent finding of our paper is a demonstration of a complete or partial loss of annual cycles in the upstream stations’ data that stems from the operation of the artificial water reservoir and extends as far as 220 km from dams. We discussed probable sources of such found changes in scaling, aiming to provide explanations that could be of use in future environmental assessments.
PB  - Elsevier BV
T2  - Physica A: Statistical Mechanics and its Applications
T1  - Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming
SP  - 125607
VL  - 566
DO  - 10.1016/j.physa.2020.125607
UR  - https://hdl.handle.net/21.15107/rcub_dais_10096
ER  - 

@article{
author = "Stratimirović, Đorđe and Batas-Bjelić, Ilija and Đurđevic, Vladimir and Blešić, Suzana",
year = "2021",
abstract = "In this paper we assessed changes in scaling properties of the river Danube level and flow data, associated with building of Djerdap/Iron Gates hydrological power plants positioned on the border of Romania and Serbia. We used detrended fluctuation analysis (DFA), wavelet transform spectral analysis (WTS) and wavelet modulus maxima method (WTMM) to investigate time series of measurements from hydrological stations in the vicinity of dams and in the area of up to 480 km upstream from dams, and time series of simulated NOAA-CIRES 20th Century Global Reanalysis precipitation data for the Djerdap/Iron Gates region. By comparing river dynamics during the periods before and after construction of dams, we were able to register changes in scaling that are different for recordings from upstream and from downstream (from dams) areas. We found that damming caused appearance of human-made or enhancement of natural cycles in the small time scales region, which largely influenced the change in temporal scaling in downstream recording stations. We additionally found disappearance or decline in the amplitude of large-time-scale cycles as a result of damming, which changed the dynamics of upstream data. The most prominent finding of our paper is a demonstration of a complete or partial loss of annual cycles in the upstream stations’ data that stems from the operation of the artificial water reservoir and extends as far as 220 km from dams. We discussed probable sources of such found changes in scaling, aiming to provide explanations that could be of use in future environmental assessments.",
publisher = "Elsevier BV",
journal = "Physica A: Statistical Mechanics and its Applications",
title = "Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming",
pages = "125607",
volume = "566",
doi = "10.1016/j.physa.2020.125607",
url = "https://hdl.handle.net/21.15107/rcub_dais_10096"
}

Stratimirović, Đ., Batas-Bjelić, I., Đurđevic, V.,& Blešić, S.. (2021). Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming. in Physica A: Statistical Mechanics and its Applications
Elsevier BV., 566, 125607.
https://doi.org/10.1016/j.physa.2020.125607
https://hdl.handle.net/21.15107/rcub_dais_10096

Stratimirović Đ, Batas-Bjelić I, Đurđevic V, Blešić S. Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming. in Physica A: Statistical Mechanics and its Applications. 2021;566:125607.
doi:10.1016/j.physa.2020.125607
https://hdl.handle.net/21.15107/rcub_dais_10096 .

Stratimirović, Đorđe, Batas-Bjelić, Ilija, Đurđevic, Vladimir, Blešić, Suzana, "Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming" in Physica A: Statistical Mechanics and its Applications, 566 (2021):125607,
https://doi.org/10.1016/j.physa.2020.125607 .,
https://hdl.handle.net/21.15107/rcub_dais_10096 .

TY  - JOUR
AU  - Aleksić, Varvara
AU  - Batas-Bjelić, Ilija
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12334
AB  - Obnovlјiva energija je predložena kao primarni pristup za dekarbonizaciju energetskog sistema i razdvajanje potrošnje energije od emisije gasova sa efektom staklene bašte, kako u energetskoj literaturi, tako i u praksi. Evropska unija je prepoznala izazov i postavila tranziciju na obnovlјive izvore energije visoko na dnevni red svojih politike, sa najnovijom ambicijom da do 2050. godine bude uglјenično-neutralna ekonomija. Sa druge strane, države Zapadnog Balkana i dalјe zavise od fosilnih goriva kao jednog od glavnih izvora u energetskom miksu. Ambicija za tranziciju na obnovlјive izvore energije u državama Zapadnog Balkana, uklјučujući i Srbiju, uglavnom je vođena težnjama ka njihovoj evropskoj budućnosti. Štaviše, potpisivanje Ugovora o Energetskoj zajednici pružilo je institucionalne i pravne alate kako ugovornim stranama, tako i Evropskoj uniji za izgradnju zajedničkog energetskog tržišta. Ovi procesi inspirisali su mnoge autore u poslednje dve decenije da analiziraju tehničke, ekonomske, tržišne i životno-sredinske aspekte obnovlјivih izvora, međutim, upravlјanje i planiranje, iako identifikovani kao izazovni, izostali iz detaljnije analize. Ovaj rad ima za cilј da prikaže pregled odabrane literature i zakonodavstva o tranziciji na obnovlјive izvore energije, kako bi se analizirala glavna pravna i politička postignuća, kao i ambicije za tranziciju u Srbiji. Takođe, u radu se raspravlјa o lekcijama naučenim iz relevantne literature kroz prizmu upravlјanja energijom i planiranja. Prvi deo rada daje pregled literature glavnih koncepata tranzicije na obnovlјive izvore energije. Istorijska analiza politika i prava obnovlјivih izvora energije u Evropskoj uniji, Energetskoj zajednici i Srbiji je u fokusu drugog dela. U poslednjem delu, rezimiraju se lekcije naučene iz literature za buduće upravlјanje i planiranje energije kroz perspektive procesa energetskog planiranja, evaluacije politika i obrazovanja i administrativnih kapaciteta. U zaključku se ističe važnost postojećih nalaza iz literature kao budućih koraka ka ubrzanom upravlјanju i planiranju energije.
AB  - Renewable energy has been suggested as the primary approach for decarbonizing the energy system and decoupling energy consumption from greenhouse gas emissions, both in the energy literature and in practice. The European Union has acknowledged the challenge and put renewable energy transition high on the policy agenda with the latest ambition of being a carbon-neutral economy by 2050. On the other hand, Western Balkan countries are still dependent on fossil fuels as one of their primary energy mix sources. The pledge about the European future has mostly driven the renewable energy transition ambition in the Western Balkan countries, including Serbia. Moreover, signing the Energy Community Treaty provided institutional and legal tools to both Contracting Parties and the European Union to build the common energy market. These processes inspired many authors in the last two decades to analyse technical, economic, market and environmental aspects of renewables. However, the governance and planning, even though identified as challenging, have been side-lined from the analysis. This paper aims to overview the selected renewable energy transition literature and legislation to analyse the main legal and policy milestones reached so far, as well as ambition in Serbia. It also discusses the lessons learned from the related literature from energy governance and planning prism. To do so, it firstly provides a literature review of the main concepts of the renewable energy transition. Moreover, the historical analysis of renewable energy policy and legal developments in the European Union, the Energy Community and Serbia are in the second part's focus. Finally, the discussion part summarizes lessons learned from the literature for future energy governance and planning with the perspective of the energy planning process, policy evaluation, and education and administrative capacity. The article concludes by emphasizing the importance of taking the current literature findings as prospective steps to follow towards accelerated energy governance and planning.
PB  - Beograd: Savez energetičara
T2  - Energija, Ekonomija, Ekologija
T1  - Do We Need More Ambition for the Renewable Energy Transition in Serbia? Foundations of Energy Governance and Planning
SP  - 1
EP  - 9
VL  - 23
IS  - 3
DO  - 10.46793/EEE21-3.01A
UR  - https://hdl.handle.net/21.15107/rcub_dais_12334
ER  - 

@article{
author = "Aleksić, Varvara and Batas-Bjelić, Ilija",
year = "2021",
abstract = "Obnovlјiva energija je predložena kao primarni pristup za dekarbonizaciju energetskog sistema i razdvajanje potrošnje energije od emisije gasova sa efektom staklene bašte, kako u energetskoj literaturi, tako i u praksi. Evropska unija je prepoznala izazov i postavila tranziciju na obnovlјive izvore energije visoko na dnevni red svojih politike, sa najnovijom ambicijom da do 2050. godine bude uglјenično-neutralna ekonomija. Sa druge strane, države Zapadnog Balkana i dalјe zavise od fosilnih goriva kao jednog od glavnih izvora u energetskom miksu. Ambicija za tranziciju na obnovlјive izvore energije u državama Zapadnog Balkana, uklјučujući i Srbiju, uglavnom je vođena težnjama ka njihovoj evropskoj budućnosti. Štaviše, potpisivanje Ugovora o Energetskoj zajednici pružilo je institucionalne i pravne alate kako ugovornim stranama, tako i Evropskoj uniji za izgradnju zajedničkog energetskog tržišta. Ovi procesi inspirisali su mnoge autore u poslednje dve decenije da analiziraju tehničke, ekonomske, tržišne i životno-sredinske aspekte obnovlјivih izvora, međutim, upravlјanje i planiranje, iako identifikovani kao izazovni, izostali iz detaljnije analize. Ovaj rad ima za cilј da prikaže pregled odabrane literature i zakonodavstva o tranziciji na obnovlјive izvore energije, kako bi se analizirala glavna pravna i politička postignuća, kao i ambicije za tranziciju u Srbiji. Takođe, u radu se raspravlјa o lekcijama naučenim iz relevantne literature kroz prizmu upravlјanja energijom i planiranja. Prvi deo rada daje pregled literature glavnih koncepata tranzicije na obnovlјive izvore energije. Istorijska analiza politika i prava obnovlјivih izvora energije u Evropskoj uniji, Energetskoj zajednici i Srbiji je u fokusu drugog dela. U poslednjem delu, rezimiraju se lekcije naučene iz literature za buduće upravlјanje i planiranje energije kroz perspektive procesa energetskog planiranja, evaluacije politika i obrazovanja i administrativnih kapaciteta. U zaključku se ističe važnost postojećih nalaza iz literature kao budućih koraka ka ubrzanom upravlјanju i planiranju energije., Renewable energy has been suggested as the primary approach for decarbonizing the energy system and decoupling energy consumption from greenhouse gas emissions, both in the energy literature and in practice. The European Union has acknowledged the challenge and put renewable energy transition high on the policy agenda with the latest ambition of being a carbon-neutral economy by 2050. On the other hand, Western Balkan countries are still dependent on fossil fuels as one of their primary energy mix sources. The pledge about the European future has mostly driven the renewable energy transition ambition in the Western Balkan countries, including Serbia. Moreover, signing the Energy Community Treaty provided institutional and legal tools to both Contracting Parties and the European Union to build the common energy market. These processes inspired many authors in the last two decades to analyse technical, economic, market and environmental aspects of renewables. However, the governance and planning, even though identified as challenging, have been side-lined from the analysis. This paper aims to overview the selected renewable energy transition literature and legislation to analyse the main legal and policy milestones reached so far, as well as ambition in Serbia. It also discusses the lessons learned from the related literature from energy governance and planning prism. To do so, it firstly provides a literature review of the main concepts of the renewable energy transition. Moreover, the historical analysis of renewable energy policy and legal developments in the European Union, the Energy Community and Serbia are in the second part's focus. Finally, the discussion part summarizes lessons learned from the literature for future energy governance and planning with the perspective of the energy planning process, policy evaluation, and education and administrative capacity. The article concludes by emphasizing the importance of taking the current literature findings as prospective steps to follow towards accelerated energy governance and planning.",
publisher = "Beograd: Savez energetičara",
journal = "Energija, Ekonomija, Ekologija",
title = "Do We Need More Ambition for the Renewable Energy Transition in Serbia? Foundations of Energy Governance and Planning",
pages = "1-9",
volume = "23",
number = "3",
doi = "10.46793/EEE21-3.01A",
url = "https://hdl.handle.net/21.15107/rcub_dais_12334"
}

Aleksić, V.,& Batas-Bjelić, I.. (2021). Do We Need More Ambition for the Renewable Energy Transition in Serbia? Foundations of Energy Governance and Planning. in Energija, Ekonomija, Ekologija
Beograd: Savez energetičara., 23(3), 1-9.
https://doi.org/10.46793/EEE21-3.01A
https://hdl.handle.net/21.15107/rcub_dais_12334

Aleksić V, Batas-Bjelić I. Do We Need More Ambition for the Renewable Energy Transition in Serbia? Foundations of Energy Governance and Planning. in Energija, Ekonomija, Ekologija. 2021;23(3):1-9.
doi:10.46793/EEE21-3.01A
https://hdl.handle.net/21.15107/rcub_dais_12334 .

Aleksić, Varvara, Batas-Bjelić, Ilija, "Do We Need More Ambition for the Renewable Energy Transition in Serbia? Foundations of Energy Governance and Planning" in Energija, Ekonomija, Ekologija, 23, no. 3 (2021):1-9,
https://doi.org/10.46793/EEE21-3.01A .,
https://hdl.handle.net/21.15107/rcub_dais_12334 .

TY  - JOUR
AU  - Stratimirović, Đorđe
AU  - Batas-Bjelić, Ilija
AU  - Đurđevic, Vladimir
AU  - Blešić, Suzana
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11681
AB  - In this paper we assessed changes in scaling properties of the river Danube level and flow data, associated with building of Djerdap/Iron Gates hydrological power plants positioned on the border of Romania and Serbia. We used detrended fluctuation analysis (DFA), wavelet transform spectral analysis (WTS) and wavelet modulus maxima method (WTMM) to investigate time series of measurements from hydrological stations in the vicinity of dams and in the area of up to 480 km upstream from dams, and time series of simulated NOAA-CIRES 20th Century Global Reanalysis precipitation data for the Djerdap/Iron Gates region. By comparing river dynamics during the periods before and after construction of dams, we were able to register changes in scaling that are different for recordings from upstream and from downstream (from dams) areas. We found that damming caused appearance of human-made or enhancement of natural cycles in the small time scales region, which largely influenced the change in temporal scaling in downstream recording stations. We additionally found disappearance or decline in the amplitude of large-time-scale cycles as a result of damming, which changed the dynamics of upstream data. The most prominent finding of our paper is a demonstration of a complete or partial loss of annual cycles in the upstream stations’ data that stems from the operation of the artificial water reservoir and extends as far as 220 km from dams. We discussed probable sources of such found changes in scaling, aiming to provide explanations that could be of use in future environmental assessments.
PB  - Elsevier BV
T2  - Physica A: Statistical Mechanics and its Applications
T1  - Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming
SP  - 125607
VL  - 566
DO  - 10.1016/j.physa.2020.125607
UR  - https://hdl.handle.net/21.15107/rcub_dais_11681
ER  - 

@article{
author = "Stratimirović, Đorđe and Batas-Bjelić, Ilija and Đurđevic, Vladimir and Blešić, Suzana",
year = "2021",
abstract = "In this paper we assessed changes in scaling properties of the river Danube level and flow data, associated with building of Djerdap/Iron Gates hydrological power plants positioned on the border of Romania and Serbia. We used detrended fluctuation analysis (DFA), wavelet transform spectral analysis (WTS) and wavelet modulus maxima method (WTMM) to investigate time series of measurements from hydrological stations in the vicinity of dams and in the area of up to 480 km upstream from dams, and time series of simulated NOAA-CIRES 20th Century Global Reanalysis precipitation data for the Djerdap/Iron Gates region. By comparing river dynamics during the periods before and after construction of dams, we were able to register changes in scaling that are different for recordings from upstream and from downstream (from dams) areas. We found that damming caused appearance of human-made or enhancement of natural cycles in the small time scales region, which largely influenced the change in temporal scaling in downstream recording stations. We additionally found disappearance or decline in the amplitude of large-time-scale cycles as a result of damming, which changed the dynamics of upstream data. The most prominent finding of our paper is a demonstration of a complete or partial loss of annual cycles in the upstream stations’ data that stems from the operation of the artificial water reservoir and extends as far as 220 km from dams. We discussed probable sources of such found changes in scaling, aiming to provide explanations that could be of use in future environmental assessments.",
publisher = "Elsevier BV",
journal = "Physica A: Statistical Mechanics and its Applications",
title = "Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming",
pages = "125607",
volume = "566",
doi = "10.1016/j.physa.2020.125607",
url = "https://hdl.handle.net/21.15107/rcub_dais_11681"
}

Stratimirović, Đ., Batas-Bjelić, I., Đurđevic, V.,& Blešić, S.. (2021). Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming. in Physica A: Statistical Mechanics and its Applications
Elsevier BV., 566, 125607.
https://doi.org/10.1016/j.physa.2020.125607
https://hdl.handle.net/21.15107/rcub_dais_11681

Stratimirović Đ, Batas-Bjelić I, Đurđevic V, Blešić S. Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming. in Physica A: Statistical Mechanics and its Applications. 2021;566:125607.
doi:10.1016/j.physa.2020.125607
https://hdl.handle.net/21.15107/rcub_dais_11681 .

Stratimirović, Đorđe, Batas-Bjelić, Ilija, Đurđevic, Vladimir, Blešić, Suzana, "Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming" in Physica A: Statistical Mechanics and its Applications, 566 (2021):125607,
https://doi.org/10.1016/j.physa.2020.125607 .,
https://hdl.handle.net/21.15107/rcub_dais_11681 .

TY  - CONF
AU  - Vujasinović, Jovan
AU  - Savić, Goran
AU  - Batas-Bjelić, Ilija
AU  - Rajaković, Nikola
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12246
AB  - This paper describes the importance of the interoperability in smart metering systems for modern distribution system operators. The lack of interoperability significantly increases the costs of smart metering system implementation for distribution system operators, especially the costs of purchasing new equipment. The replacement, cleanup and maintenance of electricity meters produced by different manufacturers, which are not interoperable, are also much more complex and expensive. Furthermore, without the interoperability, the system cannot be observable, i.e. the observability exists only for some particular segments of the system. This prevents many functionalities of distribution management system. In terms of interoperability, smart metering systems have gone through four different stages. A comparison of the system implementation costs for these four stages is presented for distribution system operator of Serbia.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT)
T1  - Decreasing the implementation costs of smart metering systems with interoperability
SP  - 370
EP  - 373
DO  - 10.1109/MetroInd4.0IoT51437.2021.9488512
UR  - https://hdl.handle.net/21.15107/rcub_dais_12246
ER  - 

@conference{
author = "Vujasinović, Jovan and Savić, Goran and Batas-Bjelić, Ilija and Rajaković, Nikola",
year = "2021",
abstract = "This paper describes the importance of the interoperability in smart metering systems for modern distribution system operators. The lack of interoperability significantly increases the costs of smart metering system implementation for distribution system operators, especially the costs of purchasing new equipment. The replacement, cleanup and maintenance of electricity meters produced by different manufacturers, which are not interoperable, are also much more complex and expensive. Furthermore, without the interoperability, the system cannot be observable, i.e. the observability exists only for some particular segments of the system. This prevents many functionalities of distribution management system. In terms of interoperability, smart metering systems have gone through four different stages. A comparison of the system implementation costs for these four stages is presented for distribution system operator of Serbia.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT)",
title = "Decreasing the implementation costs of smart metering systems with interoperability",
pages = "370-373",
doi = "10.1109/MetroInd4.0IoT51437.2021.9488512",
url = "https://hdl.handle.net/21.15107/rcub_dais_12246"
}

Vujasinović, J., Savić, G., Batas-Bjelić, I.,& Rajaković, N.. (2021). Decreasing the implementation costs of smart metering systems with interoperability. in 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT)
Institute of Electrical and Electronics Engineers (IEEE)., 370-373.
https://doi.org/10.1109/MetroInd4.0IoT51437.2021.9488512
https://hdl.handle.net/21.15107/rcub_dais_12246

Vujasinović J, Savić G, Batas-Bjelić I, Rajaković N. Decreasing the implementation costs of smart metering systems with interoperability. in 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT). 2021;:370-373.
doi:10.1109/MetroInd4.0IoT51437.2021.9488512
https://hdl.handle.net/21.15107/rcub_dais_12246 .

Vujasinović, Jovan, Savić, Goran, Batas-Bjelić, Ilija, Rajaković, Nikola, "Decreasing the implementation costs of smart metering systems with interoperability" in 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT) (2021):370-373,
https://doi.org/10.1109/MetroInd4.0IoT51437.2021.9488512 .,
https://hdl.handle.net/21.15107/rcub_dais_12246 .

TY  - JOUR
AU  - Batas-Bjelić, Ilija
AU  - Rajaković, Nikola
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12267
AB  - Just in the immediate neighbourhood of the European Union (EU), the Republic of Serbia, one of the Western Balkan (WB) EU candidate countries, is lagging behind in the process of energy transition regardless of technological advances and policy instruments available. The EU created a momentum for energy transition acceleration with the European Green Deal, which has been forwarded to the WB through the Energy Community secretariat in the form of the Green Agenda; generally speaking, response in the form of National Energy and Climate Plans (NECPs) is expected in the short term. The Republic of Serbia’s Low Carbon Development Strategy with Action Plan (LCDSA) and the current Energy Strategy will be analysed, commented on, and improvements will be suggested for the acceleration of energy transition, based on the newest findings from the simulation-based optimization techniques using the sector coupling approach to achieve ambitious variable renewable energy shares. The motivation of this research is to provide decision makers in Serbia with the best available insights regarding sustainable energy system planning tools and possible shortcuts for delayed planning of activities. In addition, the purpose is to improve Serbia’s chance of benefitting from adoption of these strategies in the country’s faster transition towards EU membership. The research compares two scenarios to illustrate a possible policy shift from small hydro power plants to photovoltaics (PV). A further increase in PV and wind power plants has been simulated using the EnergyPLAN to achieve expected scenarios of 40% renewable energy share and some more ambitious ones—up to 80%, which is realistic only with the sector coupling approach.
PB  - Aalborg : Aalborg University Press
T1  - National Energy and Climate Planning in Serbia: From Lagging Behind to an Ambitious EU Candidate?
SP  - 47
EP  - 60
VL  - 32
DO  - 10.5278/ijsepm.6300
UR  - https://hdl.handle.net/21.15107/rcub_dais_12267
ER  - 

@article{
author = "Batas-Bjelić, Ilija and Rajaković, Nikola",
year = "2021",
abstract = "Just in the immediate neighbourhood of the European Union (EU), the Republic of Serbia, one of the Western Balkan (WB) EU candidate countries, is lagging behind in the process of energy transition regardless of technological advances and policy instruments available. The EU created a momentum for energy transition acceleration with the European Green Deal, which has been forwarded to the WB through the Energy Community secretariat in the form of the Green Agenda; generally speaking, response in the form of National Energy and Climate Plans (NECPs) is expected in the short term. The Republic of Serbia’s Low Carbon Development Strategy with Action Plan (LCDSA) and the current Energy Strategy will be analysed, commented on, and improvements will be suggested for the acceleration of energy transition, based on the newest findings from the simulation-based optimization techniques using the sector coupling approach to achieve ambitious variable renewable energy shares. The motivation of this research is to provide decision makers in Serbia with the best available insights regarding sustainable energy system planning tools and possible shortcuts for delayed planning of activities. In addition, the purpose is to improve Serbia’s chance of benefitting from adoption of these strategies in the country’s faster transition towards EU membership. The research compares two scenarios to illustrate a possible policy shift from small hydro power plants to photovoltaics (PV). A further increase in PV and wind power plants has been simulated using the EnergyPLAN to achieve expected scenarios of 40% renewable energy share and some more ambitious ones—up to 80%, which is realistic only with the sector coupling approach.",
publisher = "Aalborg : Aalborg University Press",
title = "National Energy and Climate Planning in Serbia: From Lagging Behind to an Ambitious EU Candidate?",
pages = "47-60",
volume = "32",
doi = "10.5278/ijsepm.6300",
url = "https://hdl.handle.net/21.15107/rcub_dais_12267"
}

Batas-Bjelić, I.,& Rajaković, N.. (2021). National Energy and Climate Planning in Serbia: From Lagging Behind to an Ambitious EU Candidate?. 
Aalborg : Aalborg University Press., 32, 47-60.
https://doi.org/10.5278/ijsepm.6300
https://hdl.handle.net/21.15107/rcub_dais_12267

Batas-Bjelić I, Rajaković N. National Energy and Climate Planning in Serbia: From Lagging Behind to an Ambitious EU Candidate?. 2021;32:47-60.
doi:10.5278/ijsepm.6300
https://hdl.handle.net/21.15107/rcub_dais_12267 .

Batas-Bjelić, Ilija, Rajaković, Nikola, "National Energy and Climate Planning in Serbia: From Lagging Behind to an Ambitious EU Candidate?", 32 (2021):47-60,
https://doi.org/10.5278/ijsepm.6300 .,
https://hdl.handle.net/21.15107/rcub_dais_12267 .

TY  - CONF
AU  - Batas-Bjelić, Ilija
AU  - Rajaković, Nikola
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12335
AB  - Planning of energy systems in Serbia has long tradition and has been regularly performed for more than 60 years. Higher shares of renewable sources have been included just recently. The costs of such insufficiently planned energy future have been seen through the significant devastation of the environment and negative economic consequences of the locking into the electricity production from lignite. The draft of the National Energy and Climate Plan for Serbia, expected in the early September, could be the first in the history official document with ambition to reach higher shares of renewable sources in energy system (up to 40%) and the first step towards decarbonisation, and way forward to open negotiation with EU regarding energy sector. The first steps could be switching from small hydro to small PV systems all across the countries households, additional wind production, usage of large hydro potential, but it must be achieved through sectors coupling approach. In order to rich 80% renewable energy system and decarbonize to 25% of current level, the 30 GW of PV and 10 GW of wind have to be integrated through flexibilization of demand, flexible power plants and pumped hydro plants, heat pumps in the district heating, electrification of the transport, increase of the interconnection, and use of hydrogen in industry, transport and heating as well as firing biomass instead of lignite. The 100% renewable energy system for Serbia with ambition of Denmark or Spain is feasible, due to resource availability, energy efficiency measures, and moderate increase in consumption contrary to leading industry nations of G8 and China
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 16th Conference on Sustainable Development of Energy, Water and Environment Systems: 16th SDEWES Conference, Dubrovnik 2021, October 10-17, 2021, Dubrovnik, Croatia
T1  - Planning of the high share of renewable sources within the Republic of Serbia Energy System: from 21.7 zo 40% - Can we reach 100%?
SP  - 467
EP  - 467
UR  - https://hdl.handle.net/21.15107/rcub_dais_12335
ER  - 

@conference{
author = "Batas-Bjelić, Ilija and Rajaković, Nikola",
year = "2021",
abstract = "Planning of energy systems in Serbia has long tradition and has been regularly performed for more than 60 years. Higher shares of renewable sources have been included just recently. The costs of such insufficiently planned energy future have been seen through the significant devastation of the environment and negative economic consequences of the locking into the electricity production from lignite. The draft of the National Energy and Climate Plan for Serbia, expected in the early September, could be the first in the history official document with ambition to reach higher shares of renewable sources in energy system (up to 40%) and the first step towards decarbonisation, and way forward to open negotiation with EU regarding energy sector. The first steps could be switching from small hydro to small PV systems all across the countries households, additional wind production, usage of large hydro potential, but it must be achieved through sectors coupling approach. In order to rich 80% renewable energy system and decarbonize to 25% of current level, the 30 GW of PV and 10 GW of wind have to be integrated through flexibilization of demand, flexible power plants and pumped hydro plants, heat pumps in the district heating, electrification of the transport, increase of the interconnection, and use of hydrogen in industry, transport and heating as well as firing biomass instead of lignite. The 100% renewable energy system for Serbia with ambition of Denmark or Spain is feasible, due to resource availability, energy efficiency measures, and moderate increase in consumption contrary to leading industry nations of G8 and China",
publisher = "Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 16th Conference on Sustainable Development of Energy, Water and Environment Systems: 16th SDEWES Conference, Dubrovnik 2021, October 10-17, 2021, Dubrovnik, Croatia",
title = "Planning of the high share of renewable sources within the Republic of Serbia Energy System: from 21.7 zo 40% - Can we reach 100%?",
pages = "467-467",
url = "https://hdl.handle.net/21.15107/rcub_dais_12335"
}

Batas-Bjelić, I.,& Rajaković, N.. (2021). Planning of the high share of renewable sources within the Republic of Serbia Energy System: from 21.7 zo 40% - Can we reach 100%?. in Book of abstracts / 16th Conference on Sustainable Development of Energy, Water and Environment Systems: 16th SDEWES Conference, Dubrovnik 2021, October 10-17, 2021, Dubrovnik, Croatia
Zagreb : Faculty of Mechanical Engineering and Naval Architecture., 467-467.
https://hdl.handle.net/21.15107/rcub_dais_12335

Batas-Bjelić I, Rajaković N. Planning of the high share of renewable sources within the Republic of Serbia Energy System: from 21.7 zo 40% - Can we reach 100%?. in Book of abstracts / 16th Conference on Sustainable Development of Energy, Water and Environment Systems: 16th SDEWES Conference, Dubrovnik 2021, October 10-17, 2021, Dubrovnik, Croatia. 2021;:467-467.
https://hdl.handle.net/21.15107/rcub_dais_12335 .

Batas-Bjelić, Ilija, Rajaković, Nikola, "Planning of the high share of renewable sources within the Republic of Serbia Energy System: from 21.7 zo 40% - Can we reach 100%?" in Book of abstracts / 16th Conference on Sustainable Development of Energy, Water and Environment Systems: 16th SDEWES Conference, Dubrovnik 2021, October 10-17, 2021, Dubrovnik, Croatia (2021):467-467,
https://hdl.handle.net/21.15107/rcub_dais_12335 .

TY  - CONF
AU  - Batas-Bjelić, Ilija
AU  - Rajaković, Nikola
AU  - Pfeifer, Antun
AU  - Herc, Luka
AU  - Duić, Neven
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/12288
AB  - Designing the energy systems for high variable renewable energy penetrations, one should look for the flexibility of an energy systems that may be provided from various sources at supply, demand or network level. The flexibility can be provided from different options including, but not limiting to: (1) electricity demand (household and industry), (2) thermal (power, CHP) plants, (3) power to heat (CHP, heat pump district/individual), (4) transport (V2G + smart charge, synthetic fuels), (5) interconnection and (6) storage (batteries, pumped hydro, rockbed, compressed air, hydrogen…). The flexibility might be provided according to different criteria: economics, technical complexity, utilization, acceptability, feasibility, material use. Further, different constraints regarding percentages, shares, emission reductions… might be set according to proclaimed sustainable energy policy in certain region. Therefore, we will simulate various flexibility options according to their availability and priority assumed by authors for each region of nine World regions (USMCA, Latin America, United Kingdom, China, Russia, South-East Asia and Oceania, Rest of the world, ) using EnergyPLAN-Python permutation framework . This way number of synthetically generated temporary scenarios before finding optimal one and the execution time is increased in comparison to optimization approach.
PB  - Zagreb : SDEWES
C3  - Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES
T1  - Flexibility Options in 100% Renewable Energy World Regions
SP  - 0064
UR  - https://hdl.handle.net/21.15107/rcub_dais_12288
ER  - 

@conference{
author = "Batas-Bjelić, Ilija and Rajaković, Nikola and Pfeifer, Antun and Herc, Luka and Duić, Neven",
year = "2020",
abstract = "Designing the energy systems for high variable renewable energy penetrations, one should look for the flexibility of an energy systems that may be provided from various sources at supply, demand or network level. The flexibility can be provided from different options including, but not limiting to: (1) electricity demand (household and industry), (2) thermal (power, CHP) plants, (3) power to heat (CHP, heat pump district/individual), (4) transport (V2G + smart charge, synthetic fuels), (5) interconnection and (6) storage (batteries, pumped hydro, rockbed, compressed air, hydrogen…). The flexibility might be provided according to different criteria: economics, technical complexity, utilization, acceptability, feasibility, material use. Further, different constraints regarding percentages, shares, emission reductions… might be set according to proclaimed sustainable energy policy in certain region. Therefore, we will simulate various flexibility options according to their availability and priority assumed by authors for each region of nine World regions (USMCA, Latin America, United Kingdom, China, Russia, South-East Asia and Oceania, Rest of the world, ) using EnergyPLAN-Python permutation framework . This way number of synthetically generated temporary scenarios before finding optimal one and the execution time is increased in comparison to optimization approach.",
publisher = "Zagreb : SDEWES",
journal = "Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES",
title = "Flexibility Options in 100% Renewable Energy World Regions",
pages = "0064",
url = "https://hdl.handle.net/21.15107/rcub_dais_12288"
}

Batas-Bjelić, I., Rajaković, N., Pfeifer, A., Herc, L.,& Duić, N.. (2020). Flexibility Options in 100% Renewable Energy World Regions. in Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES
Zagreb : SDEWES., 0064.
https://hdl.handle.net/21.15107/rcub_dais_12288

Batas-Bjelić I, Rajaković N, Pfeifer A, Herc L, Duić N. Flexibility Options in 100% Renewable Energy World Regions. in Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES. 2020;:0064.
https://hdl.handle.net/21.15107/rcub_dais_12288 .

Batas-Bjelić, Ilija, Rajaković, Nikola, Pfeifer, Antun, Herc, Luka, Duić, Neven, "Flexibility Options in 100% Renewable Energy World Regions" in Proceedings of 16th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES (2020):0064,
https://hdl.handle.net/21.15107/rcub_dais_12288 .