California’s big battery experiment: a turning point for energy storage?

The world’s largest lithium-ion battery installed after the Aliso Canyon gas blowout has become a test case for the grid storage industryOn a paved expanse next to an electrical substation in Escondido, 30 miles north of downtown San Diego, sits a row of huge silver boxes. The site resembles a barracks, but instead of soldiers, the 24 containers house racks of battery packs. This is the largest lithium-ion battery in the world, according to its developers. When the local grid needs more po