Current status of water electrolysis for energy storage, grid balancing and sector coupling via power-to-gas and power-to-liquids: A review
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One main advantage of SOEL is its high operational temperature range (up to 1000°C), enabling waste heat reuse from exothermic FT reaction or methanol synthesis, reducing energy demand and resulting in significantly higher efficiencies than AEL or PEMEL.
“One of the main advantages of this technology is the high operational temperature range (up to 1000 • C [84]); this enables that waste heat to be reused from both the exothermic FT reaction or methanol synthesis [75], which reduces the energy demand and results in significantly higher efficiencies than AEL or PEMEL [87].”
From Use of sustainable fuels in aviation: a review (2022) · cites this paper as [87]
Another possible feature of SOEL is co-electrolysis of CO2 and steam to produce syngas, which would eliminate the need for RWGS, but this technology is in an early development stage.
“Another possible feature form SOEL is the ability of co-electrolysis of CO 2 and steam to produce syngas, which would be of extreme interest since it would also eliminate the need for RWGS, but this technology is in an early development stage [63,87].”
From Use of sustainable fuels in aviation: a review (2022) · cites this paper as [87]
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References 73 · Cited by 2,510
- Authors
- Buttler, A., & Spliethoff, H.
- Affiliations
- Technical University of Munich (DE)
- Bavarian Center for Applied Energy Research (DE)
- Corresponding author
- Buttler, Alexander
- Venue
- Renewable and Sustainable Energy Reviews
- Publisher
- Elsevier BV
- Published
- 2018-02
- Volume
- 82
- Pages
- 2440-2454
- ISSN
- 1364-0321 (ISSN-L)
- OpenAlex
- W2753273584
- Cited by
- 2,510
- References
- 73
- Citations by year
- 2026: 483 · 2025: 356 · 2024: 413 · 2023: 336 · 2022: 289 · 2021: 277 · 2020: 205 · 2019: 112 · 2018: 38
- FWCI
- 5.22
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Renewable and Sustainable Energy Reviews (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
- Funders
- BMWi and industrial partners (0327773I)
- Topics
- Physical Sciences › Energy › Energy Engineering and Power Technology › Hybrid Renewable Energy Systems
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Keywords
- water electrolysis, power-to-gas, power-to-liquids, energy storage, grid balancing, sector coupling, alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide electrolysis, part-load performance, investment costs, techno-economic analysis, renewable energy integration
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