Reversible solid oxide cell systems for integration with natural gas pipeline and carbon capture infrastructure for grid energy management

Evan P. Reznicek and Robert J. Braun

Applied Energy, 2020, vol. 259, issue C

Abstract: Electrical energy storage (EES) is necessary to enable greater penetration of renewables and as a grid-balancing solution, but current EES technologies suffer from capacity or geological limitations and high cost. Reversible solid oxide cells (ReSOCs) are an electrochemical energy conversion technology that can produce both electricity from fuel (gas-to-power) and fuel from electricity (power-to-gas), depending on resource availability and demand. Leveraging in situ C-O-H chemistry and operating at intermediate temperature (600°C) and elevated pressure (10–20 bar) enables these cells to be mildly exothermic, eliminating the need for external heat input or high over-potential (low-efficiency) operation during electrolysis mode. This operating strategy also results in higher methane production during electrolysis, facilitating easier integration with natural gas pipeline infrastructure over steam/hydrogen electrolytic processes.

Keywords: Reversible solid oxide cells; Power-to-gas; Grid energy management; Techno-economic; Synthetic natural gas; Carbon capture and utilization (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (9)

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DOI: 10.1016/j.apenergy.2019.114118

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