When GaN HEMT power devices are used in photovoltaic (PV) inverters such as microinverters, savings in energy can be significant to help lower overall electricity cost. For example, compared to using silicon power devices, a 55% savings in power dissipation can be achieved when GaN HEMT power devices are used. An estimated savings in energy in one year is about 578 kWh and can translate to a reduction of about 25% in electricity cost.