Greenvolt begins building 600 MW/2.4 GWh BESS in Poland

2.4 gwhr is a monster of a battery.

For reference the UK has about 7gw output of battery (assuming all on at the same time. I don;t have the capacity though.) The UK is one of the more mature grid battery places in europe.

Greenvolt Group has started construction of a 600 MW/2.4 GWh battery energy storage system (BESS) in Poland, with commercial operations targeted for the end of 2027.

Meanwhile the US is doubling down on fossil fuels because… reasons.

Which battery technology and where are the sourcing it?