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ARTICLE · 30 OCTOBER 2026

What’s Next For Long Duration Storage?: Air Batteries

Burges Salmon LLP
Burges Salmon LLP
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Burges Salmon LLP

Burges Salmon LLP

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As the UK expands its renewable energy capacity, the critical challenge of efficient energy storage comes into focus. Exploring innovative solutions beyond traditional battery systems, this analysis examines how "air batteries" - including liquid air energy storage (LAES) and compressed air energy storage (CAES) - are emerging as promising technologies for long-duration energy storage, with commercial-scale projects now moving from concept to reality.

United KingdomEnergy and Natural Resources

As the UK adds more renewable energy generation to its grid, some of the sector’s most important questions remain around how to harness it efficiently, and particularly: how can we store this energy for long enough to deploy it when needed most?

Having been at the forefront of the UK energy storage market for more than a decade, from the earliest stages of the battery energy storage system (BESS) to carbon capture and storage (CCS), pumped hydro and beyond, Burges Salmon have seen firsthand the exciting developments in technology which have evolved as energy storage has emerged as a critical part of British energy infrastructure. 

And now, “air batteries” are beginning to gather some momentum, building on a 50-year-old concept to present an interesting option in the next chapter of UK energy storage.

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