Invinity Energy Systems (LSE:IES) has completed delivery of a 20.7MWh vanadium flow battery for the Copwood VFB Energy Hub in East Sussex. Once fully operational, the project is expected to become Europe’s largest vanadium flow battery installation and will operate alongside a 3MWp solar array.
The energy storage system has a capacity roughly equivalent to the average daily electricity consumption of around 3,000 homes. The site is expected to connect to the UK electricity grid and begin generating revenue later this year, pending final approval from the local network operator.
The Copwood development is being positioned as a major showcase for long-duration energy storage technology and its potential role in improving UK energy security while supporting increased use of domestically generated renewable power. Company executives and public stakeholders said the project demonstrates how vanadium flow battery technology can help reduce dependence on imported fossil fuels, improve grid efficiency and lower overall energy system costs.
Manufactured in Scotland, the battery system is also expected to support skilled industrial employment and could serve as a model for future long-duration storage developments under upcoming UK energy initiatives.
Despite the strategic significance of the project, Invinity Energy Systems continues to face financial challenges, including ongoing losses and negative cash flow generation. Technical indicators and valuation measures also remain relatively weak. However, recent commercial developments and strategic initiatives provide some encouragement, with future performance likely to depend on the company’s ability to execute growth plans and strengthen its financial position.
More about Invinity Energy Systems
Invinity Energy Systems develops and manufactures vanadium flow batteries for utility-scale, long-duration energy storage applications. Operating across the UK and Canada, the company’s Endurium VFB technology is designed for high-throughput, heavy-duty deployments, offering scalable and non-flammable systems intended to operate for more than 30 years while supporting renewable energy integration and grid stability.
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