The government has approved two solar projects to become the first ever to be built on federal land, both to be erected in the California desert as part of a government fast-track program. Tessera Solar will build a 709-megawatt concentrated solar power project on 6,360 acres in Imperial Valley, to cost $2.1 billion (hundreds of millions of which could be supplied or underwritten by the government). Chevron Energy Solutions’ 45-megawatt system also received approval for a 422-acre project in Lucerne Valley. Both projects could power more than half a million homes when complete. The government is expected to approve other solar projects by the end of the year proposed by BrightSource, NextEra, Tessera and Solar Millennium.