Swimming pool thermal energy storage, an alternative for distributed cooling energy storage

Julian David Hunt, Behnam Zakeri, Walter Leal Filho, Paulo Smith Schneider, Natália de Assis Brasil Weber, Lara Werncke Vieira, Conrado Ermel, Nivalde José de Castro, Paulo Sergio Franco Barbosa, Andreas Nascimento, Alessio Mastrucci

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The rise in distributed renewable energy generation creates a growing need to find viable solutions for energy storage to match energy demand and supply at any time. This paper evaluates the possibility of using swimming pools as a long-term cooling energy storage solution, i.e., Swimming Pool Thermal Energy Storage (SPTES). This technology allows a small building to store solar energy for cooling purposes in a yearly cycle, by filling the pool with ice slurry in winter and using that ice to cool the house in the summertime. Additionally, the pool can be used as a heat sink for a heat pump to heat the house during the winter. Results show that the energy storage cost of 0.078 US$ kWhe−1 is substantially smaller when compared with batteries (125 US$ kWhe−1). This makes SPTES a good alternative to support the development of 100% renewable energy systems in locations where the climate has a highly seasonal variation in temperature and the cooling demand is high in summer.
Original languageEnglish (US)
JournalEnergy Conversion and Management
Volume230
DOIs
StatePublished - Feb 15 2021
Externally publishedYes

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

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