sCO2-based thermally integrated-pumped thermal energy storage (TI-PTES) integrating freely available heat sources in both charging and discharging cycles

Stefano Barberis, Syed Safeer Mehdi Shamsi and Alberto Traverso

Energy, 2025, vol. 334, issue C

Abstract: •Two configurations of the discharging cycles have been compared (TES on top and Waste Heat on top), with the second one being more favourable.•Both configurations have been analysed also from a CAPEX point of view with higher CAPEX foreseen for the second configuration.•CAPEX of the proposed system is lower than a traditional TI-PTES due to lower impact ofTES cost.•A sensitivity analysis and then an optimization of the operating pressures of the systems have been performed.

Keywords: sCO2; Thermally integrated pumped Thermal energy storage; Carnot battery; Long duration energy storage (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:334:y:2025:i:c:s0360544225032505

DOI: 10.1016/j.energy.2025.137608

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