Abstract
Module Level Power Electronics (MLPE) is dominating the residential photovoltaic market in the US. Safety functions to meet the local regulation is believed to be a major driver of this success. MLPE, however, has other advantages against traditional string inverters such as mismatch loss mitigation, flexible string configurations and module level monitoring. These features are also important and provides for many beneficial advantages for commercial applications. Especially in Japan, the DC optimized Inverter solution is used mainly for ground mount commercial applications including megawatt scale power plants. These projects clearly demonstrate MLPE’s potentials for megawatt scale PV market.