The San Luis Solar Ranch is located where there once was a potato and carrot farm. Because of a shortage of water, an estimated 40,000 acres of agricultural land will have to be retired in the next decade. County officials hope that solar can help bring revenue into the valley by building on former agricultural land.
November 28, 2011 4:00 AM PST
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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