One of the primary constraints to more solar development in the San Luis Valley is the lack of transmission lines. For the Iberdrola plant, the operator had to have a substation installed to collect the power and send it off over a 115-kilovolt transmission line. The operator also had to upgrade that line to ensure the power can flow out to the purchaser, utility Xcel Energy.
November 28, 2011 4:00 AM PST
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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