An integrated model of coupled heat and power sectors for large-scale energy system analyses
Applied Energy, 2020, vol. 266, issue C, No S0306261920300337
In Europe and other regions of the world, heat and power sectors are highly coupled. Thus, both sectors are interdependent which poses a challenge when modeling these systems. This paper presents a novel and integrated model framework to analyze coupled heat and power sectors. Said framework is designed to assess large-scale/multi-national systems such as the European continent’s one. The integral model character derives from a model sequence that first models heat demand at individual district heating network level, then determines the heat supply schedules of individual heat generation units in these networks and finally uses an extended version of a pre-existing large-scale market model, the WILMAR Joint Market Model, for electricity market simulations. All models are embedded in a common database environment. In order to validate the model framework, a historical year is chosen, and model outputs are compared to historical market outcomes. For comparison, two alternative, frequently used modeling approaches are equally tested. Results show that the developed model framework is far superior to the alternative modeling approaches. This statement concerns the reproduction of heat demands, power plant dispatch, electricity prices and net electricity exports. The results also suggest that the developed model can yield improved intra-zonal exchange schedules, which are one major driver for congested transmission network elements.
Keywords: Combined heat and power (CHP); District heating; European electricity markets; Electricity market modeling; System analysis; Sector coupling; Heat load modeling (search for similar items in EconPapers)
JEL-codes: H23 Q01 Q31 Q40 Q48 (search for similar items in EconPapers)
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