Used batteries might help California store renewable energy

Ethan Elkind quoted in Scientific American, September 19, 2014

“California is perfectly positioned to be the leader in the country, if not the world,” Elkind said. About 40 percent of the nation’s electric vehicles are in California. The state just passed 100,000 registered plug-in EVs. There’s a need for storage because of the growing amount of renewable power, and utilities must comply with the storage mandate, he said.