Ok, pay attention because this could very well be a game-changer. Yesterday Elon Musk introduced a suite of batteries for home, auto and utilities that could possibly eliminate the need for non-renewable energy. So lets take a look at how the Tesla Powerwall for homes works. Assuming you have solar panels, the Powerwall will store solar energy as well as grid energy from non-peak times for usage during peak times. Jargon aside, this means you save greenbacks. The Powerwall comes in two configurations – one that is more suitable for backup use and one that is suitable for daily use. Availability will likely be late summer 2015 and Tesla has already announced partnerships with Amazon, Target, and Southern California Edison.