KOSTAL Industrie Elektrik PLENTICORE L G3

What the KOSTAL Industrie Elektrik PLENTICORE L G3 does

A solar string inverter turns the direct current from a rooftop array into grid-quality alternating current for the home, and feeds what the home does not use into the grid. The KOSTAL Industrie Elektrik PLENTICORE L G3 range spans 15 kW to 20.1 kW of AC output, suiting arrays of about 15–19.5 kWp at the small end and 20.1–26.1 kWp at the large end, as installers commonly size the panels up to 30% above the inverter's rating.

In Germany, arrays of the same size produce about 13,500 to 18,090 kWh a year, assuming a conservative 900 kWh per kWp. For the smallest model, that is worth €1,040 a year fed into the grid at 7.70 ct per kWh, and up to €4,995 used at home instead of buying power at 37.0 ct.