High Quality Content by WIKIPEDIA articles! Topaz Solar Farm is a proposed 550 megawatt (MW) solar photovoltaic power plant, to be built by First Solar, Inc. (thin film CdTe solar module maker) in the Carrizo Plain, northwest of California Valley at a cost of over $1 billion. On August 14, 2008, Pacific Gas and Electric announced an agreement to buy all the power from the power plant. Commenting on this project and a nearby 250 MW project announced at the same time, Daniel Kammen, the director of the Renewable and Appropriate Energy Laboratory at University of California, Berkeley, said "This scale is ten times larger than what was being talked about a while ago".