Clay Tye Battery Energy Storage System (BESS) is a significant energy infrastructure project located in Upminster, Essex, UK. Developed collaboratively by Harmony Energy and Fotowatio Renewable Ventures (FRV), the facility has a capacity of 99MW/198MWh, making it Europe's joint-largest operational BESS upon energisation. The system comprises 52 Tesla Megapack lithium-ion batteries, integrated with Tesla's Autobidder AI software for efficient energy capacity sharing and project management. Connected to the UK Power Networks' distribution network, the facility stores energy from renewable sources and provides flexibility during peak demand periods, supporting the UK's transition away from fossil fuels.
The primary function of the Clay Tye BESS is to store excess energy generated during low-demand periods and release it during peak times, thereby enhancing grid stability and facilitating the integration of renewable energy sources into the UK's power network. This capability contributes to future energy security, aims to make energy bills more affordable, and supports the grid's decarbonisation.
