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  - 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 .