To deliver the maximum amount of power from solar panels or arrays, standalone inverters and grid-tie inverters use a sophisticated strategy to find the maximum power point, or MPP, for given conditions. They do this by varying the load on the solar panel or array until it finds the point on the panel’s or array’s I-V curve that will deliver the most power. The inverter then converts this DC power to AC power, which is then used locally or fed into the power grid.