Enphase Energy, Inc., together with its subsidiaries, designs, develops, and sells microinverter systems for residential and commercial markets in the United States and internationally. The company's semiconductor-based microinverter system converts direct current (DC) electricity to alternating current (AC) electricity at the individual solar module level. It also offers energy storage systems, including its AC battery; and energy monitoring and control services. The company sells its microinverter systems primarily to distributors, as well as directly to large installers through original equipment manufacturers and strategic partners. Enphase Energy, Inc. has a strategic partnership with Panasonic Corporation of North America for the development of AC modules. The company was founded in 2006 and is headquartered in Petaluma, California.