The man who launched Tesla’s energy storage business back in 2009 has officially commercialized a 100-hour battery. (Clean Technica)
Form Energy, co-founded by former Tesla exec Mateo Jaramillo, is taking on the lithium-ion Megapack with a battery that runs on "reversible rusting."
The tech: The battery exposes iron pellets to air, releasing continuous energy for up to 100 hours. It then applies electricity to turn the rust back into metal.
Despite losing $70M in DOE grants, Form just inked a 300-MW deal with Xcel Energy to firm up 1.9 GW of new renewables, supplying 24/7 clean power to a Google data center in Minnesota.