Using a novel technology that adds multiple innovations to a very high-performance crystalline silicon solar cell platform, a consortium led by the University of Delaware has achieved a record-breaking combined solar cell efficiency of 42.8 percent from sunlight at standard terrestrial conditions.
Pacific Gas & Electric, the major utility in Northern California, was to announce a commitment Wednesday to purchase 550 megawatts of solar power to be generated by troughlike arrays of mirrors in the Mojave Desert.