Down there in California’s sunny south is the Ivanpah Solar Power Facility (ISPF). It’s a massive structure in the Mojave Desert that was supposed to deliver an energy output of approximately 1.7 million MWh (megawatt-hours) of electric energy annually. The ISPF uses 173,500 heliostats (adjustable mirrors to follow the sun) that reflect the sunshine onto boilers located on centralized power towers. The facility covers 4,000 acres (1,600 ha) of public land and received $1,600 million in government-backed loan guarantees. Another $600 million came from private investors with nearly one third of that from Google.
