Tesla Powerwall Keynote by Elon Musk… 'The Missing Piece". Musk is taking the energy industry head and essentially announced we have the ability to transform the entire world. A small portion of the U.S., with an even smaller portion of that portion that which contains new Tesla batteries, can power the entire U.S. via solar power.
The Powerwall will fit in your home, wall mounted, and will let you store power, and even get off-grid at times when needed. It will run $3,500 and you can stack up to nine Powerwalls and have 90Kwh!
You can order one right now: http://www.teslamotors.com/powerwall
Also announced is the Pockerpack. This is utility scale power… gigawatt class power… he even demonstrates that the entire keynote has been run entirely off the grid via solar cells mounted on the ceiling of the building they are in. He then explores what it would take to transition the entire planet to renewable and primarily solar, including all all transport and all electricity and all heating.
Oh… and he's Open Sourcing ALL OF IT…. so that not just Tesla is making this happen but anyone that wants to be involved.