My guess is that this will be the home battery line that Musk teased on the conference call in February. At the time he said they were likely to be unveiled "in

My guess is that this will be the home battery line that Musk teased on the conference call in February. At the time he said they were likely to be unveiled "in the next month or two." http://www.washingtonpost.com/blogs/the-switch/wp/2015/02/12/this-new-tesla-battery-will-power-your-home-and-maybe-the-electric-grid-too/ http://www.washingtonpost.com/blogs/the-switch/wp/2015/02/12...