"If things go according to plan in Lincoln, the project will hold 8,500 megawatt-hours of energy — that’s more than any existing battery plant in the world today some pumped-hydro storage plants do hold more electricity, but those are large construction projects, not mass-produced batteries."

“This is a very natural next step in terms of scaling up and deployments,” Jaramillo said, adding that it’s actually not a huge outlier compared with other projects Form is working on but hasn’t yet publicized: ​“There will be other utility projects that get announced that are the same size or larger.”

Could be a genuine game changer. Batteries made of cheap iron.