SMRTR Science & EngineeringMay 12, 2026Interesting Engineering

Europe’s largest vanadium flow battery to power 3,000 UK homes during nighttime

SMRTR summary

The UK's largest vanadium flow battery in Europe has been completed in East Sussex, built by Invinity Energy Systems. The 20.7-megawatt-hour Copwood Energy Hub pairs 90 vanadium flow batteries with a solar array to store daytime solar energy and release it overnight, powering 3,000 homes daily. Unlike lithium-ion batteries, vanadium flow batteries carry no fire risk and are built to last decades, making them ideal for long-term renewable energy storage.

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