Elon Musk introduced the Power Wall which is a battery storage for Solar power. Its cost about $3500 and it sounds like it can allow you to go off grid by powering your house. The question is it safe, and will power companies kill it before it gets mass usage?
You might not need solar power since it can store energy from the cheap times and cuts your usage down significantly as well.
Here are some notes from the video:
He announces Tesla energy.
Wants to harness the sun. Solar only works during the day. A battery will cover the rest.
Announces the tesla power wall. Its wall mounted anywhere. Its flat against wall and works with solar systems right out of the box. It backs up electricity if utilities are cut. Does DC conversion for you as well. Can stack up to 9 of them which is 90kw hours. One is 10 kw hs.
Will start shipping 3 or 4 months. They have a factory in Nevada which will really help production shortages that will occur in the beginning.
There is a Tesla PowerPack which can scale infinitely. He powered the facility it was presented in with the PowerPack. The first one is 1GWh. It would take 160,000,000 of them to power the US. Supposedly 900,000,000 of them would power the world. 2 billion would take care of all transportation.
Talks about a gigafactory but doesn't explain exactly what it does. Describes it as a product which is strange as well.