The Sunny Boy Storage. A low(ish) cost way to add a Powerwall and other batteries to your existing solar system. Image: SMA

The SMA Sunny Boy Storage is a battery-inverter that you can use to add battery storage to your existing rooftop solar system.

It does not store energy itself, but integrates modern battery packs, such as the Tesla Powerwall, into your home’s electricity supply. It is exciting because it is the cheapest and simplest way to add a battery such as the Powerwall to your existing system. This is because it can re-use your existing inverter – no need to replace it. [Read more…]