Switzerland dug a hole the size of two soccer fields to install the world’s most powerful underground battery, able to release 1.2 GW in milliseconds and store 2.1 GWh at a multibillion-dollar price tag ECOticias.com
Switzerland is digging a 27-meter-deep shaft along the Rhine to house a massive 2.1-GWh battery… and Laufenburg could become the “secret heart” of Europe’s power grid ECOticias.com