Renewable energy company SPI Energy Co. Ltd. says it's started solar module production at McClellan Park, and that it plans to expand production to reach 1 gigawatt of production by the end of the year. The U.S. Office of Energy Efficiency and Renewable Energy calculates that 1 gigawatt is equal to 3.1 million solar panels. SPI Energy (Nasdaq: SPI), which moved its headquarters from Santa Clara

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