 Founded by Jigar Shah, SunEdison had been developing, financing, building, operating, and monitoring large-scale photovoltaic plants for commercial customers, including many national retail outlets, government agencies, and utilities, since 2003.The company had pioneered solar-as-a-service, and the solar power purchase agreement (PPA) for no-money-down customer financing.With the acquisition of SunEdison, MEMC became a developer of solar power projects and North America's largest solar energy services provider.