The Sacramento Municipal Utility District is going big with 200 megawatts of iron-flow battery technology to save its renewable power for times of no wind or sunlight.
The utility has ordered the batteries, which are each the size of a railcar, from Wilsonville, Oregon-based ESS Inc., which plans to build a training center and manufacturing center in Sacramento.
“We see a colossal amount of demand in California,” Hugh McDermott, senior vice president of business development with ESS (NYSE:…