UK’s largest battery storage connected in Essex
The UK’s largest battery energy storage system (BESS) has been connected to National Grid’s transmission network at Tilbury.
Developed by Statera Energy, the 300MW Thurrock Storage project is now energised and delivering electricity flexibly to the network across London and the south east.
National Grid said that with its total capacity of 600MWh, Thurrock Storage can help to balance supply and demand by storing surplus clean electricity and discharging it when the grid needs it.
In a statement, John Twomey, director of customer and network development at National Grid Electricity Transmission, said: “Battery storage plays a vital role in Britain’s clean energy transition. Connecting Thurrock Storage, the UK’s biggest battery, to our transmission network marks a significant step on that journey.
“Our Tilbury substation once served a coal [power] plant, and with battery connections like this, it’s today helping to power a more sustainable future for the region and the country.”
National Grid reinforced its Tilbury substation to ensure the network in the region could carry the battery’s additional load, with new protection and control systems installed to ensure a robust connection.
Tom Vernon
Tom Vernon, Statera Energy CEO and founder, said: “We are delighted that Thurrock Storage is now energised, following its successful connection to the grid by National Grid Electricity Transmission. Increasing BESS capacity is essential for supporting the grid when renewable generation, such as solar and wind, is low or changes quickly. It ensures that energy can be stored efficiently and returned to the grid whenever it’s needed.”
National Grid said it is continuing work at Tilbury substation to connect the 450MW Thurrock Flexible Generation facility.
The connection of the UK’s biggest battery follows energisation in July of the 373MW Cleve Hill Solar Park in Kent – the largest operational solar plant in the country – which National Grid connected to its adjacent Cleve Hill substation.