Greenvolt begins building 600 MW/2.4 GWh BESS in Poland
Greenvolt Power has commenced construction on a 600 MW/2.4 GWh battery energy storage system (BESS) in Poland, with commercial operations expected by late 2027. The project aims to enhance grid flexibility and support the integration of renewable energy sources.
Why it matters
Large-scale battery storage is critical for the transition to renewable energy, helping to balance supply and demand in national power grids.
Greenvolt Power has started construction of a 600 MW/2.4 GWh BESS in Siedlce, Poland. It said it expects to begin commercial operations by the end of 2027.
BYD Energy Storage will supply the battery technology. The project will use 210 battery containers and 105 transformer containers equipped with power conversion systems to transfer electricity between the batteries and the grid.
P&Q will connect the BESS to the transmission network operated by Polskie Sieci Elektroenergetyczne (PSE) at 400 kV. The connection works include a new 400/110 kV substation and 400 kV and 110 kV cable links.
The facility will charge during periods of high renewable generation and discharge when electricity demand rises. Greenvolt expects the project to improve system flexibility, support the integration of wind and solar power, and help balance supply and demand.
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