Solar electric collectors at sunrise at the power station in Kramer Junction, California. ?Rows of mirrored glass, parabolic trough shaped collectors concentrate solar thermal energy on tubes containing a heat transfer fluid. ?The 735 Degree F. fluid is circulated through a conventional steam turbine electric generator facility, the energy passed onward to the power grid. ?Over 1,000,000 square meters of mirror produce 150 MW (Megawatts) peak output.