In an industrial park near the shore of Lake Erie, hard by the Buffalo River, the future of the solar power industry is under construction. SolarCity’s sprawling Buffalo factory, built and paid for by the state of New York, is nearing completion and will soon begin producing some of the most efficient solar panels available commercially. Capable of making 10,000 solar panels a day, or one gigawatt of solar capacity a year, it will be the largest solar manufacturing plant in North America and one of the biggest in the world.

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