Europe’s deepest mine is being converted into a gravity battery

Europe’s deepest mine is being converted into a gravity battery

The Pyhäsalmi mine, Europe’s deepest zinc and copper mine, is located approximately 450 kilometers north of Helsinki and has the potential to store up to 2 MW of energy in its 1,400 meter deep boreholes. A gravity battery will be installed in the abandoned mine, lifting heavy loads using excess energy from renewable sources such…