California’s Mount Diablo Unified School District now has 12.1 megawatts (MW) of solar on the rooftops of 51 schools, making it the biggest solar system installed for a school district in the world. Until now, Silicon Valley’s East Side Union High School District had the biggest in the country at 7.1 MW. SunPower’s solar systems are expected to save the district $3 million a year, which over 30 years will add up to $200 million freed up for education. Del Monte Electric installed the systems, including underground electrical distribution, solar installation and connecting to the utility. Over 28,000 PV panels and 150 miles of wire are installed on carports and rooftops throughout the campuses. The completion of this major project took only 15 months. Voter-approved Clean Renewable Energy Bonds (CREBS) funded the $56 million project, along with general obligation bond, and in this case the Mount Diablo School District owns its solar systems. Other significant solar systems in schools across the country are in Boulder, Colorado with 1.4 MW, Oak Grove School District near San Jose, California, with 1.8 MW, and 10 catholic schools in New Jersey, with 1.5 MW.