An artist rendering shows SolarReserve’s Sandstone project, a $5 billion, 10-tower concentrated solar array the California-based company plans to build in Nevada. (Courtesy of SolarReserve/file)

An artist rendering shows SolarReserve's Sandstone project, a $5 billion, 10-tower concentrated solar array the California-based company plans to build in Nevada. (Courtesy of SolarReserve/file)

An artist rendering shows SolarReserve’s Sandstone project, a $5 billion, 10-tower concentrated solar array the California-based company plans to build in Nevada. (Courtesy of SolarReserve/file)