FRV and Harmony Energy building one of UK’s largest battery storages


United Kingdom – The first phase of construction on Clay Tye, the largest battery storage development project in the UK, has been announced by UK developer Harmony Energy and Fotowatio Renewable Ventures (FRV), a division of Abdul Latif Jameel Energy.

The BESS plant is anticipated to be finished and operational in the first quarter of 2023 by both FRV and Harmony Energy.


The largest project of its kind is being built in the UK at the Clay Tye site in Essex, which will have a total power of 99MW/198MWh. Clay Tye utilizes 52 Tesla Megapack lithium-ion batteries along with Tesla’s Autobidder AI software for effective project management and energy capacity trading. As part of the UK’s ongoing transition away from fossil fuels, the Megapack batteries, which have a capacity of 198 MWh and are connected to UK Power Networks’ distribution network, give the UK National Grid the ability to store energy from renewable sources and provide peak-time flexibility.