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Integrating lithium-ion and thermal batteries with heat pumps for enhanced photovoltaic self-consumption

Author

Listed:
  • López-Ceballos, Alicia
  • del Cañizo, Carlos
  • Antón, Ignacio
  • Datas, Alejandro

Abstract

A promising solution to fully decarbonize the energy consumption of buildings consists of hybridizing solar PV installation with lithium-ion (Li-ion) batteries and heat pumps. However, the high capital cost per unit of energy storage of Li-ion batteries often results in systems with relatively small storage capacities, leading to low self-consumption ratios. Thermal batteries with power generation capacity, such as Power-to-heat-to-power storage (PHPS), leverage the significantly lower cost of thermal energy storage to increase the overall storage capacity of the system. In addition, PHPS systems generate heat as a by-product during the energy conversion, which can be used directly in the building to supply its heating demand.

Suggested Citation

  • López-Ceballos, Alicia & del Cañizo, Carlos & Antón, Ignacio & Datas, Alejandro, 2025. "Integrating lithium-ion and thermal batteries with heat pumps for enhanced photovoltaic self-consumption," Applied Energy, Elsevier, vol. 390(C).
    • Handle: RePEc:eee:appene:v:390:y:2025:i:c:s0306261925004970
    DOI: 10.1016/j.apenergy.2025.125767
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