Evaluation of ensured active power provision from highly flexible thermo-electric supply portfolios integrated by district heating systems

District heating (DH) is a technology that can be used for an efficient supply of residential areas with thermal power. However, this technology involves high costs and is thus characterized by a long-term depreciation, which heavily limits its attractiveness. The provision of both thermal power and...

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Bibliographic Details
Main Authors: Hinker, Jonas, Myrzik, Johanna M. A.
Format: Conference Proceeding
Language:English
Subjects:
Cogeneration
DH-HEMTs
Heat pumps
Portfolios
Resistance heating
Thermal loading
Online Access:Request full text
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Summary:District heating (DH) is a technology that can be used for an efficient supply of residential areas with thermal power. However, this technology involves high costs and is thus characterized by a long-term depreciation, which heavily limits its attractiveness. The provision of both thermal power and electrical operating reserve by e.g. combined-heat-and-power plants (CHP) can be an option to cover costs for the system and thus increase cost recovery, but requires a systematic integration of both thermal and electrical power system. By introduction of a novel methodology, the combined set of all assets' technically feasible working points is derived, and a new degree of freedom is thereby revealed concerning the uncoupling of thermal and electric power output. With this new approach, thermal demand in the local DH system can often be met independent of electric output, which makes strategies of powering-up and -down of CHP plants obsolete. A brief study depicts its versatile applicability for arbitrary thermo-electric supply portfolios including electric heat pumps. Besides, typical timely restrictions within a day are shown for an actual operating reserve market scheme.
ISSN:1944-9933
DOI:10.1109/PESGM.2017.8274419