|Electric car pioneer Tesla unveiled a “home battery” that
its founder Elon Musk said would help change the “entire
energy infrastructure of the world.” The Tesla Powerwall
can store power from solar panels, from the electricity grid
at night when it is typically cheaper, and provide a secure
backup in the case of a power outage. In theory the device, which typically would fit on the wall of a garage or inside a house, could make solar-powered homes completely independent of the traditional energy grid. This could also be a huge boon for under-developed regions, where power is often unreliable at best, despite abundant solar energy. The Powerwall comes in 10 kWh weekly cycle and 7 kWh daily cycle models, both of which are guaranteed for 10 years and are sufficient to power most homes during
peak evening hours.