Elon Musk, CEO of Tesla, has briefly announced during the last Q4 2014 earning call, that they are working in home batteries.
Tesla’s development in electric car is widely known: batteries, charging points, cars, etc. But nobody had ever heard a word about home storage from Elon Musk.
During the last Q4 2014 earning call, Musk answered several questions about Tesla’s future developments, its competitiveness with Apple and many other issues. One of them, although briefly mentioned, was the work done in home batteries making possible to have off-grid houses.
According to Musk, they will be unveiled in one or two months and fully available and manufacture in six. A very short period of time to know what Musk and their team are doing and developing in home batteries.
You can hear the complete conference in the next link (starting when Elon Musk talks about home batteries): http://youtu.be/wvB01EibT2g?t=38m53s