What is the Powerwall?
The Powerwall is a new commercial battery pack powered by solar energy and made for the common home. It will be produced by Tesla Motors Inc. and can be reserved on the Tesla Powerwall Website.
Powerwall batteries are made from lithium ion, available in 10kwh and 7kwh capacity, and outputs 350 to 450 volts. These units are mounted on the wall and are rechargeable. They require installation by a trained electrician and do not come with an AC-DC inverter.
What are some alternatives to Powerwall?
Cheap silicon batteries are in abundance these days. China produces millions every month. One example is deep cycle 6V lead calcium batteries which you can buy on Amazon. These can be combined with 120-watt solar panels and a 1700 watt inverter and produce more power than one Powerwall.
One drawback to using what’s currently available is