With New Factory, Tesla Ventures Into Solar Power Storage for Home and Business - NYTimes.com

Not just for homes

"And for businesses, they can help lower demand for electricity from the grid, which in turn can lower costly demand charges.

Amazon Web Services, which manages cloud-based computing systems and has a goal to derive all its energy from renewable sources, is beginning a pilot program with Tesla in Northern California.

“Batteries are important for both data center reliability and as enablers for the efficient application of renewable power,” James Hamilton, distinguished engineer at Amazon Web Services, said through a spokeswoman. “They help bridge the gap between intermittent production, from sources like wind, and the data center’s constant power demands.”"

From Tesla Launches Batteries for Homes, Businesses, Utilities (Bloomberg Business)

“Our goal here is to fundamentally change the way the world uses energy,” Musk said at an event Thursday at the company’s design studio in Hawthorne, California. “We’re talking at the terawatt scale. The goal is complete transformation of the entire energy infrastructure of the world.”

Also see Tesla Powerwall Battery Economics: Almost There (Ramez Naam)

With New Factory, Tesla Ventures Into Solar Power Storage for Home and Business - NYTimes.com