The Mount Diablo Unified School District in Contra Costa County, California worked with SunPower to install 12.1 MW of solar carports at 51 campuses to offset approximately 90% of electricity and save an estimate of $220 million over 30 years. (Image courtesy SunPower)

The Mount Diablo Unified School District in Contra Costa County, California worked with SunPower to install 12.1 MW of solar carports at 51 campuses to offset approximately 90% of electricity and save an estimate of $220 million over 30 years. (Image courtesy SunPower)

The Mount Diablo Unified School District in Contra Costa County, California worked with SunPower to install 12.1 MW of solar carports at 51 campuses to offset approximately 90% of electricity and save an estimate of $220 million over 30 years. (Image courtesy SunPower)