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While the Biden administration attempts to package the Green New Deal into its “infrastructure” spending spree, it’s important to remember that the electric grids in two of America’s largest states-…
It looks like Minnesota will have a very expensive mess to clean up when the wind turbines currently operating in the state reach the end of their 20 year useful lifetimes.
According to utility documents filed by Xcel Energy for it’s Nobles Wind facility, it will cost approximately $445,000 (in 2009 dollars) per turbine to decommission the wind facility. This means it would cost $532,000 per turbine (in 2019 dollars) for each of the 134 turbines in operation at this facility, bringing the total cost of decommissioning the Nobles project to $71 million.
Other wind turbines have six-figure decommissioning costs, as well. According to utility documents for the Palmer’s Creek Wind facility in Chippewa County, Minnesota, it would cost $7,385,822 to decommission the 18 wind turbines operating at that site, a cost of $410,000 per turbine.
One would think such a price tag would at least result in a thorough decommissioning job, but one would be wrong.
According to the Nobles Wind document, “Restoration activities will include and not be limited to removal of all physical material and equipment related to the project to a depth of 48 inches.”
This means Xcel will only remediate the site to a depth of four feet, leaving most of the massive concrete foundations used to anchor the wind turbines, which go as deep as 15 feet, in the ground indefinitely.
Furthermore, according to the website Renewable Technology, Nobles Wind facility has an extensive underground collector cable system, laid at a depth of four feet, connecting the turbines to a central substation. Xcel’s documents were not specific enough to determine if they would be removing these cables, but the Palmer’s Wind Farm project explicitly states that cables deeper than 4 feet would not be removed:
Wind turbines and solar panels are often given a free pass when it comes to their impact on the environment even though they can cause substantial environmental degradation. In contrast, liberal politicians and special interest groups have continued to delay the replacement of an aging oil pipeline with a newer, and safer replacement.
This double standard is a disservice to the environment, and to Minnesotans who must pay more for their energy.
*This post has been updated to reflect the fact that Xcel Energy’s estimates were conservative on the high end, not the low end as had been previously implied.