Shijiazhuang Maxwell MXB100022

What the Shijiazhuang Maxwell MXB100022 does

A hybrid inverter runs both the solar array and a home battery: it supplies the home from the panels first, stores the surplus and draws on the battery when the sun goes down. With 22 kW of AC output, the Shijiazhuang Maxwell MXB100022 suits an array of about 22–28.6 kWp, as installers commonly size the panels up to 30% above the inverter's rating.

In Germany, an array of the same size produces about 19,800 kWh a year, assuming a conservative 900 kWh per kWp: worth €1,525 a year fed into the grid at 7.70 ct per kWh, and up to €7,326 used at home instead of buying power at 37.0 ct.