Sodium-ion batteries are heading out of the lab and onto the Midwestern grid. (Electrek)
Battery storage maker Peak Energy and RWE Americas will test a passively cooled sodium-ion storage system in eastern Wisconsin, offering MISO a peek at how the technology performs in day-to-day conditions.
Peak says sodium-ion systems can lower grid-storage costs by avoiding active cooling, reducing maintenance, and limiting degradation. The company claims lifetime savings can reach ~$70/kWh compared with today’s lithium-ion systems.