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Operation of thermal storage power plants under high renewable grid penetration

  • The planned coal phase-out in Germany by 2038 will lead to the dismantling of power plants with a total capacity of approx. 30 GW. A possible further use of these assets is the conversion of the power plants to thermal storage power plants; the use of these power plants on the day-ahead market is considerably limited by their technical parameters. In this paper, the influence of the technical boundary conditions on the operating times of these storage facilities is presented. For this purpose, the storage power plants were described as an MILP problem and two price curves, one from 2015 with a relatively low renewable penetration (33 %) and one from 2020 with a high renewable energy penetration (51 %) are compared. The operating times were examined as a function of the technical parameters and the critical influencing factors were investigated. The thermal storage power plant operation duration and the energy shifted with the price curve of 2020 increases by more than 25 % compared to 2015.

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Author:Nils Handschuh, Dominik StollenwerkORCiD, Jörg Borchert
Parent Title (English):NEIS 2021: Conference on Sustainable Energy Supply and Energy Storage Systems
Publisher:VDE Verlag
Place of publication:Berlin
Document Type:Conference Proceeding
Year of Completion:2021
Date of the Publication (Server):2022/03/16
Tag:storage dispatch; storage optimisation; thermal storage
First Page:261
Last Page:265
NEIS 2021: Conference on Sustainable Energy Supply and Energy Storage Systems. 13-14 September 2021. Hamburg, Germany
Institutes:FH Aachen / Fachbereich Energietechnik
FH Aachen / Nowum-Energy