What communities need to know about solar arrays
Local leaders are often excited by the prospect of solar farms. They’re quiet neighbors that generate tax revenue, but they don’t increase traffic or send kids to public schools. There is, however, one detail communities need to consider before approving solar arrays.
“Communities shouldn’t bear the financial burden of removing a solar field that has reached the end of its useful life.”
Irene Cox is a graduate policy intern. at UVA’s Weldon Cooper Center for Public Service. She says a solar panel is less efficient after 30 years.
“It actually still produces power at about 80% of its rated capacity, but by that point it’s more cost-effective to decommission those panels, so you could shut down the plant entirely, or what’s much more likely, you could fit it with new, more efficient, higher output panels.”
Either way, she and her colleagues have crafted a report advising communities on the deal they should strike with developers – noting that decommissioning a large solar array could take months and cost more than a million dollars. That said, it’s cheaper than removing other energy-generating hardware.
“For comparison, the U.S. Regulatory Commission notes that nuclear facilities cost $300-$400 million to decommission.”
Cox adds that materials used to construct a solar farm have some salvage value, and she says there will likely be a way to recycle panels in the years to come.
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