Elon Musk debuts the Tesla Powerwall:
Powerwall is a home battery that charges using electricity generated from solar panels, or when utility rates are low, and powers your home in the evening. It also fortifies your home against power outages by providing a backup electricity supply. Automated, compact and simple to install, Powerwall offers independence from the utility grid and the security of an emergency backup.
Love this quote:
We have this handy fusion-reactor in the sky, called the sun. You don’t have to do anything. It just works. Shows up every day, and produces ridiculous amounts of power.