Construction kicks off at 99MW UK storage site

Fotowatio Renewable Ventures (FRV) and UK developer Harmony Energy have started initial construction works at the 99MW/198 megawatt-hour Clay Tye energy storage project in Essex, south-east England.

Clay Tye will comprise 52 Tesla megapack lithium-ion batteries, together with Tesla’s Autobidder AI software for energy capacity exchange and project management.

The batteries will be connected to UK Power Networks distribution network, providing the capability to store energy from renewable sources and peak-time flexibility to the UK National Grid.

The project, which will be the largest battery energy storage system (BESS) in the UK once operational, is expected to be finished and energised during the first quarter of 2023.

FRV managing director Felipe Hernandez said: "Clay Tye is going to be a significant milestone in our growth objective in the UK energy storage market.

"This BESS strengthens the long-term sustainability of our business model and our leadership position in the market.

"In this way, we are continuing the path for the future FRV’s assets in the country, which are in the commercial operation, construction and development phase."

Harmony Energy chief executive Peter Kavanagh said: "This is another significant milestone in our continued growth and we’re pleased to be working alongside FRV once again.

"Clay Tye has taken six years to reach this stage. It is one of the largest projects of its kind in the UK and will contribute to future energy security whilst supporting decarbonisation of the grid."

FRV is part of renewable energy company Abdul Latif Jameel Energy.

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