Abstract
AbstractDecarbonising the energy system requires high shares of variable renewable generation and sector coupling like power to heat. In addition to heat supply, heat pumps can be used in future energy systems to provide flexibility to the electricity system by using the thermal storage potential of the building stock and buffer tanks to shift electricity demand to hours of high renewable electricity production. Bridging the gap between two methodological approaches, we coupled a detailed building technology operation model and the open-source energy system model Balmorel to evaluate the flexibility potential that decentral heat pumps can provide to the electricity system. Austria in the year 2030 serves as an example of a 100% renewable-based electricity system (at an annual national balance). Results show that system benefits from heat pump flexibility are relatively limited in extent and concentrated on short-term flexibility. Flexible heat pumps reduce system cost, CO2 emissions, and photovoltaics and wind curtailment in all scenarios. The amount of electricity shifted in the assessed standard flexibility scenario is 194 GWhel and accounts for about 20% of the available flexible heat pump electricity demand. A comparison of different modelling approaches and a deterministic sensitivity analysis of key input parameters complement the modelling. The most important input parameters impacting heat pump flexibility are the flexible capacity (determined by installed capacity and share of control), shifting time limitations, and cost assumptions for the flexibility provided. Heat pump flexibility contributes more to increasing low residual loads (up to 22% in the assessed scenarios) than decreasing residual load peaks. Wind power integration benefits more from heat pump flexibility than photovoltaics because of the temporal correlation between heat demand and wind generation.
Funder
Klima- und Energiefonds
Technische Universität Wien Bibliothek
TU Wien
Publisher
Springer Science and Business Media LLC
Reference59 articles.
1. AURESII. (2022). AURESII. AUctions for Renewable Energy Support II. Horizon 2020 Framework Programme, grant agreement no. 817619. [WWW Document]. URL http://aures2project.eu/
2. Balmorel Community, 2022. Balmorel code [WWW Document]. URL https://github.com/balmorelcommunity/Balmorel
3. Barragán-Beaud, C., Pizarro-Alonso, A., Xylia, M., Syri, S., & Silveira, S. (2018). Carbon tax or emissions trading? An analysis of economic and political feasibility of policy mechanisms for greenhouse gas emissions reduction in the Mexican power sector. Energy Policy, 122, 287–299. https://doi.org/10.1016/j.enpol.2018.07.010
4. Bayer, P., Saner, D., Bolay, S., Rybach, L., & Blum, P. (2012). Greenhouse gas emission savings of ground source heat pump systems in Europe: A review. Renewable and Sustainable Energy Reviews, 16, 1256–1267. https://doi.org/10.1016/J.RSER.2011.09.027
5. Bramstoft, R., Pizarro-Alonso, A., Jensen, I. G., Ravn, H., & Münster, M. (2020). Modelling of renewable gas and renewable liquid fuels in future integrated energy systems. Applied Energy, 268, 114869. https://doi.org/10.1016/J.APENERGY.2020.114869
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