Flexibility Potential of Space Heating Demand Response in Buildings for District Heating Systems

Dmytro Romanchenko, Emil Nyholm, Mikael Odenberger and Filip Johnsson
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Dmytro Romanchenko: Department of Space, Earth and Environment, Chalmers University of Technology, S412 96 Göteborg, Sweden
Emil Nyholm: Department of Space, Earth and Environment, Chalmers University of Technology, S412 96 Göteborg, Sweden
Mikael Odenberger: Department of Space, Earth and Environment, Chalmers University of Technology, S412 96 Göteborg, Sweden
Filip Johnsson: Department of Space, Earth and Environment, Chalmers University of Technology, S412 96 Göteborg, Sweden

Energies, 2019, vol. 12, issue 15, 1-23

Abstract: Using an integrated demand-supply optimization model, this work investigates the potential for flexible space heating demand, i.e., demand response (DR), in buildings, as well as its effects on the heating demand and the operation of a district heating (DH) system. The work applies a building stock description, including both residential and non-residential buildings, and employs a representation of the current DH system of the city of Gothenburg, Sweden as a case study. The results indicate that space heating DR in buildings can have a significant impact on the cost-optimal heat supply of the city by smoothing variations in the system heat demand. DR implemented via indoor temperature deviations of as little as +1 °C can smoothen the short-term (daily) fluctuations in the system heating demand by up to 18% over a period of 1 year. The smoothening of the demand reduces the cost of heat generation, in that the heat supply and number of full-load hours of base-load heat generation units increase, while the number of starts for the peaking units decreases by more than 80%. DR through temperature deviations of +3 °C confers diminishing returns in terms of its effects on the heat demand, as compared to the DR via +1 °C.

Keywords: district heating; energy demand; buildings; demand response; optimization; modeling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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