Isothermal Deep Ocean Compressed Air Energy Storage: An Affordable Solution for Long-Term Energy Storage

25 Pages Posted: 22 Mar 2022

See all articles by Julian David Hunt

Julian David Hunt

International Institute for Applied Systems Analysis (IIASA)

Behnam Zakeri

International Institute of Applied Systems Analysis (IIASA)

Andreas Nascimento

Federal University of Espirito Santo

Paulo Sérgio Franco Barbosa

Universidade Estadual de Campinas (UNICAMP) - Núcleo Interdisciplinar de Planejamento Energético (NIPE)

Fernanda Munari Caputo Tomé

University of São Paulo (USP)

Nivalde José Castro

Universidade Federal do Rio de Janeiro (UFRJ)

Walter Leal Filho

Hamburg University of Applied Sciences (HAW)

Keywan Riahi

International Institute for Applied Systems Analysis (IIASA)

Abstract

The world is undergoing a substantial energy transition with an increasing share of intermittent sources of energy on the grid such as wind and solar. These variable renewable energy sources require an energy storage solution to allow a smooth integration of these sources. Batteries can provide short-term storage solutions. However, there is still a need for technologies that can provide seasonal energy storage at locations without the potential for pumped hydro storage. This paper presents innovative solutions for energy storage based on isothermal air compression and storage of the air in the deep ocean. The cost of isothermal deep ocean compressed air energy storage (IDO-CAES) is estimated to vary from 1 to 10 USD/kWh of stored electric energy and 1,500 to 3,000 USD/kW of installed capacity. IDO-CAES could be a feasible option to complement batteries, providing long-term energy storage cycles.

Keywords: cost-benefit analysis, long-term energy storage, electricity storage innovation, compresses air energy storage, sustainable development, carbon-neutral world

Suggested Citation

Hunt, Julian David and Zakeri, Behnam and Nascimento, Andreas and Barbosa, Paulo Sérgio Franco and Tomé, Fernanda Munari Caputo and Castro, Nivalde José and Leal Filho, Walter and Riahi, Keywan, Isothermal Deep Ocean Compressed Air Energy Storage: An Affordable Solution for Long-Term Energy Storage. Available at SSRN: https://ssrn.com/abstract=4063614 or http://dx.doi.org/10.2139/ssrn.4063614

Julian David Hunt (Contact Author)

International Institute for Applied Systems Analysis (IIASA)

Schlossplatz 1
Laxenburg, A-2361
Austria

Behnam Zakeri

International Institute of Applied Systems Analysis (IIASA) ( email )

Austria

Andreas Nascimento

Federal University of Espirito Santo ( email )

Av. Fernando Ferrari, 514
No. 514, Goiabeiras
Vitória, Espirito Santo 29075
Brazil

Paulo Sérgio Franco Barbosa

Universidade Estadual de Campinas (UNICAMP) - Núcleo Interdisciplinar de Planejamento Energético (NIPE) ( email )

Brazil

Fernanda Munari Caputo Tomé

University of São Paulo (USP) ( email )

Av. Prof. Luciano Gualberto 380
Sao Paulo, 05508-010
Brazil

Nivalde José Castro

Universidade Federal do Rio de Janeiro (UFRJ) ( email )

Av; Pasteur, 250
terreo - Bairro Maracana
Rio de Janeiro, Rio de Janeiro 23890000
Brazil

Walter Leal Filho

Hamburg University of Applied Sciences (HAW) ( email )

Berliner Tor 5
Hamburg, 20099
Germany

Keywan Riahi

International Institute for Applied Systems Analysis (IIASA) ( email )

Schlossplatz 1
Laxenburg, A-2361
Austria

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