MODELLING CO2 EMISSIONS IMPACTS ON CROATIAN POWER SYSTEM

Abstract

Today's electrical energy landscape is characterized by new challenges such as deregulation, liberalization of energy markets, increased competition, growing demands on security of supply, price insecurities, and demand to cut CO2 emissions. All mentioned challenges are calling for consideration of various options (like nuclear, coal, gas or renewable scenarios) and for better understanding of energy systems modelling in order to optimize proper energy mix. Existing models are not sufficient any more and planners will need to think differently in order to face these challenges. European emission trading scheme (EU ETS) started in 2005 and it has great influence on power system short term and long term planning. Croatia is obliged to establish a national scheme for trading of greenhouse gas emission allowances from the year 2010, which will be focused on monitoring and reporting only until accession to EU when it will be linked with EU ETS. Thus, for Croatian power system it is very important to analyze possible impacts of CO2 emissions. Analysis presented in this paper was done by two different models: mathematical model, based on short run marginal costs (SRMC, relevant for fuel switch in existing power plant and merit order change) and long run marginal costs (LRMC, relevant for new investment decisions); and electricity market simulation model PLEXOS, which was used for modelling Croatian power system during development of the Croatian energy strategy in 2008. Results of the analysis show important impacts that emission trading has on Croatian power system, such as influence of emission price rise on price of electricity and on emission quantity, and changes in power plants output that appear with emission price rise. Breakeven point after which gas power plant becomes more competitive than coal is 62 €/tCO2 for SRMC and 40 €/tCO2 for LRMC. With CO2 prices above 31 €/tCO2 wind is more competitive than gas or coal, which emphasizes importance that emission price has on competitiveness of renewables.

Dates

  • Submission Date2009-11-24
  • Revision Date2010-02-26
  • Acceptance Date2010-05-12

DOI Reference

10.2298/TSCI1003655P

References

  1. Bozic, H., Modeling Improvement for the Long term Planning for Energy System Development (in Croatian), Ph. D. thesis, Faculty of Electrical Engineering and Computing, Zagreb, Croatia, 2005
  2. Ramos, A. Adler, I., A Further Step in Decision Support Models for Energy Markets, Editorial, European Journal of Operational Research, 181 (2007), 3, pp. 1243-1244
  3. Dyner, I., Larsen, I. R., From Planning to Strategy in the Electricity Industry, Energy Policy, 29 (2001), 13, pp. 1145-1154
  4. Kagiannas, A., Askounis, D. T., Psarras, J., Power Generation Planning: a Survey from Monopoly to Competition, Electrical Power and Energy Systems, 26 (2003), 6, pp. 413-421
  5. Botterud, A., et al., Multi-Agent Simulation of Generation Expansion in Electricity Markets, IEEE, 2007
  6. Connolly, D., et al., A Review of Computer Tools for Analyzing the Integration of Renewable Energy into Various Energy Systems, Applied Energy, 87 (2010), 4, pp. 1059-1082
  7. Pasicko, R., Debrecin, N., Viskovic, A., Simulating the Optimal Generation Capacity Mix in Croatian Power System (in Croatina), Theme VI, HRO HYDRO 2007 Conference, Šibenik, Croatia, 2007
  8. Ventosa, M., et al., Electricity Market Modeling Trends, Energy Policy, 33 (2005), 7, pp. 897-913
  9. Tomsic, Z., Method for the Analysis of Electric Power System Sustainable Development Various Options (in Croatian), Ph. D. thesis, Faculty of Electrical Engineering and Computing, Zagreb, Croatia, 2001
  10. Hobbs, B., Optimization Methods for Electric Utility Resource Planning, European Journal of Operational Research, 83 (1995), 1, pp. 1-20
  11. Voropai, N. I., Ivanova, E. Y., Multi-Criteria Decision Analysis Techniques in Electric Power System Expansion Planning, Electric Power and Energy Systems, 24 (2002), 1, pp.71-78
  12. Veit, D., Fichtner, W., Ragwitz, M., Agent-Based Computational Economics in Power Markets - Multi-Agent Based Simulation as a Tool for Decision Support, International Series on Advanced Intelligence, Volume 9, Advanced Knowledge International, Adelaide, Australia, 2004
  13. Duerinck, J., Assessment and Improvement of Methodologies used for GHG Projection, Project Presentation, Available at wwwb.vito.be/ghgprojection
  14. ***, Croatian Ministry of Economy, Energy in Croatia 2006, Annual Energy Report, 2007
  15. Drayton, G., et al., Transmission Expansion Planning in the Western Interconnection - The Planning Process and the Analytical Tools That Will be Needed to Do the Job, Power Systems Conference and Exposition, 2004, IEEE PES,
  16. www.psr-inc.com/psr/download/papers/IEEE_final_draft_dwp_11-4-23-04.pdf
  17. ***, PLEXOS wiki, available at www.plexos.info
  18. Raguzin, I., Tomsic, Z., Legislation Framework for Croatian Renewable Energy, Thermal Science, 11 (2007), 3, pp. 27-42
  19. ***, Energy Strategy of the Republic of Croatia, Official Gazette, Vol. 130, Croatia, 2009
  20. ***, EC, European Commission Directive 2006/32/EC on Energy Efficiency and Energy Services, 2006
  21. UNFCCC, Compliance Committee, 2009, available at:
  22. http://unfccc.int/files/kyoto_protocol/compliance/enforcement_branch/application/pdf/cc-2009-1-8_croatia_eb_final_decision.pdf
  23. ***, UNFCCC, Decision 7/CP.12, Level of Emissions for the Base Year of Croatia, 2006, available at http://unfccc.int/resource/docs/2006/cop12/eng/05a01.pdf
  24. ***, Ministry of Environmental Protection, Physical Planning and Construction, National Inventory Report 2009, Submission to the UNFCCC and the Kyoto Protocol, 2009
  25. ***, EC, EU Climate and Energy Package, 2009, available at
  26. http://ec.europa.eu/environment/climat/climate_action.htm
  27. Granic, G., Prebeg, F., Renewable Energy Projects in Croatia: Present Situation and Future Activities, Thermal Science, 11 (2007), 3, pp. 55-74
  28. ***, IEA, Emissions Trading and its Possible Impacts on Investment Decisions in the Power Sector, 2003, IEA Information Paper, available at http://iea.org/textbase/papers/2003/cop9invdec.pdf
  29. Pasicko, R., Tuerk, A., Tomsic, Z., Use of Biomass in Croatia: Options for CO2 Mitigation, Book of abstracts, World Renewable Energy Congress, Glasgow, Scotland, 2008
  30. ***, IAEA, Climate Change and Nuclear Power 2008, Vienna, Austria, 2008
  31. ***, EIA, Energy Information Administration, Annual Energy Outlook, 2008, DOE/EIA-0383(2008)
  32. Mužek, Z., Energy Prices in the Future, Basis for Croatian Energy Strategy (in Croatian), Zagreb, 2008, Available at www.energetska-strategija.hr
  33. Čavlina, N., Debrecin, N., Rašeta, D., Comparative Analysis of Production Costs from Gas, Coal and Nuclear Power Plant (in Croatian), Cooperation Project between HEP Group and Faculty of Electrical Engineering and Computing, Zagreb, Croatia, 2009
  34. Pašičko, R., Debrecin, N., Robič, S., Simulator Development for Analysis of Emission Trading Impacts on Electricity Market (in Croatian), Cooperation project between HEP Group and Faculty of Electrical Engineering and Computing, Zagreb, Croatia, 2007
Volume 14, Issue 3, Pages655 -669