Diagram showing a 400 Wp panel, ten panels forming a 4 kWp DC array, a 3.68 kW AC inverter, a bill measured in kWh, and an illustrative battery labeled with usable kWh capacity and continuous kW power.

kW vs kWh vs kWp: Solar Power Units Without the Headache

Learn what kW, kWh and kWp measure, where each appears on solar equipment and bills, and how to catch misleading comparisons.