This solution includes a single power optimizer with four Maximum Power Point Trackers (MPPTs) for harvesting more energy from each module. One or two 60-cell PV modules can be connected to each input. The M2640 power optimizer works exclusively with the new single-phase inverter with compact technology. The wall-mounted inverter is extremely compact, very lightweight, easy to install, and is available in 1kW, 1.5kW, and 2kW sizes.