RES has submitted a planning application for the almost 100MW Spennymoor energy storage project in north-east England.
The facility will have an installed capacity of 99.9MW and, if consented, will be located adjacent to Spennymoor substation in County Durham.
RES said the proposal has been refined through several design iterations based on information gathered during detailed site survey work.
The plans also include measures to enhance biodiversity through the planting of mix grassland and woodlands on spoil bunds, that will offer food and shelter to wildlife.
RES development project manager Jenna Folkard said: “As we make the rapid transition to low-cost renewables it’s important that we develop more energy storage capacity on our grid to support a more flexible system.
“Spennymoor Energy Storage Project will have an installed capacity of 99.9MW, making it one of our largest developments to date and one that will play an important part in the UK’s target of reaching net zero by 2050.”