SolarCity Corporation designs, manufactures, installs, monitors, maintains, leases, and sells solar energy systems to government, residential, and commercial customers in the United States. The company provides solar energy systems; solar lease and solar power purchase agreements; mypower loan agreements; grid control/energy storage systems; zep solar mounting systems; and proprietary software, including SolarBid sales management platform, SolarWorks customer management software, PowerGuide proactive monitoring solutions, and Energy Designer, a proprietary software application used by field engineering auditors to collect site-specific design details on a tablet computer. It also sells electricity generated by solar energy systems to customers. The company offers its products and services through direct outside sales force; door-to-door sales force; call centers; channel partner network; and robust customer referral program. SolarCity Corporation was founded in 2006 and is headquartered in San Mateo, California. As of November 21, 2016, SolarCity Corporation operates as a subsidiary of Tesla Motors, Inc.