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Energies
Volume 13
Issue 4
10.3390/en13040903
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Article

Time-Dependent Flexibility Potential of Heat Pump Systems for Smart Energy System Operation

by
Sina Steinle
*,
Martin Zimmerlin
,
Felicitas Mueller
,
Lukas Held
,
Michael R. Suriyah
and
Thomas Leibfried
Institute of Electric Energy Systems and High-Voltage Technology, KIT, Engesserstrasse 11, 76131 Karlsruhe, Germany
*
Author to whom correspondence should be addressed.
Energies 2020, 13(4), 903; https://doi.org/10.3390/en13040903
Submission received: 15 January 2020 / Revised: 13 February 2020 / Accepted: 14 February 2020 / Published: 18 February 2020
(This article belongs to the Special Issue Select Papers from the 5th International Conference on Smart Energy Systems)
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Abstract

The integration of multiple energy sectors, such as electricity, heating, and mobility, into an overall smart energy system is a key part of the journey towards a fossil-free energy system. Exploiting the operational flexibility of these sectors will lead to the efficient operation of the integrated smart energy system. The use of heat pumps for the heating supply based on renewable energy resources is reasonable in many cases. Combining heat pumps with thermal storages, these systems can offer flexibility to an energy system based on fluctuating power generation. Flexibility can be defined as the capability to adapt an initial schedule in order to support the energy system in terms of the provision of power reserve. In this paper, an approach to determine the time-dependent flexibility potential of a heat pump system is presented. The optimization-based approach considers all the constraints resulting from the system topology, including the required heating demand of the connected building. As a result, constraints for the integration of the available flexibility in a modified Optimal Power Flow (OPF) calculation are given. These lead to the ensured feasibility of the flexibility provision without considering the system boundaries of the heat pump site within the OPF.
Keywords: heat pump operation; time-dependent flexibility; sector integration; smart energy systems heat pump operation; time-dependent flexibility; sector integration; smart energy systems

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MDPI and ACS Style

Steinle, S.; Zimmerlin, M.; Mueller, F.; Held, L.; Suriyah, M.R.; Leibfried, T. Time-Dependent Flexibility Potential of Heat Pump Systems for Smart Energy System Operation. Energies 2020, 13, 903. https://doi.org/10.3390/en13040903

AMA Style

Steinle S, Zimmerlin M, Mueller F, Held L, Suriyah MR, Leibfried T. Time-Dependent Flexibility Potential of Heat Pump Systems for Smart Energy System Operation. Energies. 2020; 13(4):903. https://doi.org/10.3390/en13040903

Chicago/Turabian Style

Steinle, Sina, Martin Zimmerlin, Felicitas Mueller, Lukas Held, Michael R. Suriyah, and Thomas Leibfried. 2020. "Time-Dependent Flexibility Potential of Heat Pump Systems for Smart Energy System Operation" Energies 13, no. 4: 903. https://doi.org/10.3390/en13040903

APA Style

Steinle, S., Zimmerlin, M., Mueller, F., Held, L., Suriyah, M. R., & Leibfried, T. (2020). Time-Dependent Flexibility Potential of Heat Pump Systems for Smart Energy System Operation. Energies, 13(4), 903. https://doi.org/10.3390/en13040903

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