Swiss Giant Battery Developer Taps UK Tech To Feed AI Power Boom

(MENAFN- Swissinfo) The Swiss developer of a giant underground battery system beneath a new data centre complex has given a boost to UK battery maker Invinity Energy Systems, as the quest for ways to power the AI boom steps up. Select your language

Generated with artificial intelligence. Listening: Swiss giant battery developer taps UK tech to feed AI power boom This content was published on May 22, 2026 - 14:06 4 minutes Ryohtaroh Satoh in London, Financial Times

Privately held Swiss group FlexBase, which is building the complex at Laufenburg on the German border, selected Invinity for its vanadium flow batteries to provide 1.5 gigawatt-hours of storage.

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This is equivalent to storing enough electricity to supply about 200,000 typical UK homes for a day, in what is expected to become one of the world's largest flow battery installations.

Unlike lithium-ion batteries, vanadium flow batteries store energy in liquid electrolytes held in external tanks rather than in the battery cells themselves.

The battery system is intended both to smooth volatile electricity demand from AI computing and provide stabilisation services to the grid, reflecting growing efforts by data centres to present themselves as flexible power users rather than a source of grid congestion.

The Swiss battery installation could eventually expand to 2.1GWh in later phases of development, the company said.

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