Proceeding

High Temperature ATES in combination with power-to-heat: maximizing renewable energy use for a local energy system

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“To reduce worldwide greenhouse gas (GHG) emissions, fossil fuels are being replaced by renewable energy in a rapid tempo. As a result, the energy system becomes more decentralized with e.g. PV systems as a source for local multi-energy systems, with aim to become as self-sustainable as possible. This is challenging because these systems often rely on an intermittent energy source (production mainly in summer), which is not aligned with energy demand (mainly in winter). One solution for this problem is the combination of power-to-heat (PtH) with High Temperature Aquifer Thermal Energy Storage (HT-ATES), which allows for flexible and effective utilisation and storage of available green electricity to match the availability and demand of sustainable electricity. Currently, insights in the practical potential of this solution and methods for effective integration of PtH and HT-ATES in multi-energy systems are lacking. Therefore, we assessed methods to improve the integration and control of a HT-ATES system and tested varying ways of integration for a local decentralized multi-energy system. To this end, we expanded and integrated a multi-energy system model with a numerical hydro-thermal model to dynamically simulate the functioning of the integrated HT-ATES. The impact of key design parameters (heat pump size, storage temperature, cut-off temperature) on overall energy performance and the effect of different methods for integration of the local energy system were simulated and analysed.”

(Citation: Beernink, S., van der Roest, E., van der Hoek, J. P., Hartog, N., and Bloemendal, M.: High Temperature ATES in combination with power-to-heat: maximizing renewable energy use for a local energy system, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-9581, https://doi.org/10.5194/egusphere-egu22-9581, 2022)

© Author(s) 2022. This work is distributed under the Creative Commons Attribution 4.0 License.

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