Isothermal Deep Ocean Compressed Air Energy Storage: An Affordable Solution for Seasonal Energy Storage

Julian David Hunt, Behnam Zakeri, Andreas Nascimento, Diego Augusto de Jesus Pacheco, Epari Ritesh Patro, Bojan Đurin, Márcio Giannini Pereira, Walter Leal Filho, Yoshihide Wada

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

There is a significant energy transition in progress globally. This is mainly driven by the insertion of variable sources of energy, such as wind and solar power. To guarantee that the supply of energy meets its demand, energy storage technologies will play an important role in integrating these intermittent energy sources. Daily energy storage can be provided by batteries. However, there is still no technology that can provide weekly, monthly and seasonal energy storage services where pumped hydro storage is not a viable solution. Herein, we introduce an innovative energy storage proposal based on isothermal air compression/decompression and storage of the compressed air in the deep sea. Isothermal deep ocean compressed air energy storage (IDO-CAES) is estimated to cost from 1500 to 3000 USD/kW for installed capacity and 1 to 10 USD/kWh for energy storage. IDO-CAES should complement batteries, providing weekly, monthly and seasonal energy storage cycles in future sustainable energy grids, particularly in coastal areas, islands and offshore and floating wind power plants, as well as deep-sea mining activities.
Original languageEnglish (US)
Pages (from-to)3118
JournalEnergies
Volume16
Issue number7
DOIs
StatePublished - Mar 29 2023

ASJC Scopus subject areas

  • General Computer Science

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