A retired wind turbine’s generator is a hard thing to move.<\/p>\n
Inside it is not only steel and copper.<\/p>\n
It is a ring of magnets that scrap yards long ignored.<\/p>\n
For years the story of a dead turbine was about the tower and the blade.<\/p>\n
The steel gets scrapped, the blade gets buried or ground up.<\/p>\n
The generator was the part nobody was pulling apart<\/strong>.<\/p>\n Most retired turbine coverage fixates on steel tonnage and blade waste, because those are the parts anyone can see from the road. But inside some modern generators sits a ring of permanent magnets built from neodymium and dysprosium<\/strong>, metals that hold a magnetic field strongly enough to replace heavy electromagnet windings entirely. Industry reporting<\/a> on one recycler notes that retired turbines have enormous generators that can contain large rare earth magnets.<\/p>\n Direct drive turbines, and their generators specifically, hold a significant amount of rare material such as neodymium. Some newer turbine models can hold up to a ton of rare earths<\/strong>, worth nearly $100,000<\/strong>.<\/p>\n That is a real prize. But it is not the only money in a teardown, since steel, copper and brass still add up fast.<\/p>\n Pulling a magnet out of a casing is the straightforward part. Separating the rare earths from the iron and boron around them, without the harsh acids that usually do that job, is the step that stalled recyclers for years<\/strong>.<\/p>\n Critical Materials Recycling, based in Boone, Iowa, uses an acid free dissolution process to recover rare earth elements from end of life materials like cars and consumer electronics. Applied to generator magnets, the process selectively pulls the rare earths, primarily neodymium, praseodymium and dysprosium<\/strong>, into solution and produces a high purity oxide.<\/p>\n That chemistry came out of a federal lab in the same state. The company worked with Ames National Laboratory on a method that saves more of the metal<\/strong> and keeps technicians away from dangerous acids. Large items like a generator still have to be torn open by hand first.<\/p>\n The scale is no longer theoretical. One rare earth recycler forecasts that next year, wind turbine magnets will make up about 40 percent of its total tonnage, and it currently has a pipeline of about 500 turbines nationwide<\/strong>.<\/p>\n Counting towers, though, badly overstates the haul. At a utility’s Highland wind farm in Iowa, only 20 percent of the turbines<\/strong> being replaced contain rare earths at all. Four out of five machines coming down there are a steel and copper job, not a magnet job.<\/p>\n That ratio is the honest frame for the whole business. The magnets are becoming a major feedstock<\/strong>, but each one still has to be found, dropped and cut open before anything comes out of it.<\/p>\n The metal doing the work inside an Iowa generator also points spacecraft. Neodymium iron boron magnets offer the highest energy product<\/strong> of any known permanent magnet, enabling compact components in satellites and planetary rovers, while dysprosium enhanced versions provide stable torque in reaction wheels.<\/p>\n That overlap is why recovering rare earths domestically matters well beyond wind turbines<\/a> and electric vehicles. Federal defense agencies have invested in domestic processing capacity<\/strong> to cut reliance on foreign sources for magnets used in attitude control and deep space probes.<\/p>\n A metal worth chasing inside a cornfield generator is the same metal keeping orbiting hardware aimed correctly, where nothing gets repaired once it launches.<\/p>\n None of this is settled business. Wind turbines generally last around 25 to 30 years<\/strong> at best, so much of the American fleet has not reached retirement, and the real test of this industry is still ahead.<\/p>\n The gap it fills is narrow but real, since rare earths form part of the 10 to 15 percent<\/strong> of wind turbine components that currently go unrecycled. There is also a second life that skips the chemistry altogether.<\/p>\n Federal lab documentation<\/a> of the work notes the company is also pursuing a reuse path in which magnets are reshaped for industrial actuators, not unlike how the eel safe turbine design<\/a> bends around the problem it was built to solve. A wind farm once destined for a landfill trench now looks like a shallow mine that generated electricity first, and whether that mine pays depends on how many towers coming down actually have magnets inside.<\/p>\n","protected":false},"excerpt":{"rendered":" A retired wind turbine’s generator is a hard thing to move. Inside it is not only steel and copper. It is a ring of magnets that scrap yards long ignored. For years the story of a dead turbine was about the tower and the blade. The steel gets scrapped, the blade gets buried or ground … Read more<\/a><\/p>\n","protected":false},"author":28,"featured_media":46271,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"single retired wind","rank_math_title":"A single retired wind turbine in Iowa is being pulled apart for a ton of rare earth magnets, which recyclers say can be worth nearly $100,000","rank_math_description":"Retired wind turbine generators in Iowa hold rings of rare earth magnets worth nearly $100,000 each, and a new acid free process is pulling them apart.","footnotes":""},"categories":[8],"tags":[],"class_list":["post-46264","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy"],"_links":{"self":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/46264","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/comments?post=46264"}],"version-history":[{"count":1,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/46264\/revisions"}],"predecessor-version":[{"id":46272,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/46264\/revisions\/46272"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media\/46271"}],"wp:attachment":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media?parent=46264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/categories?post=46264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/tags?post=46264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Why the generator is the part worth taking apart<\/h2>\n
A process in Iowa that skips the acid bath<\/h2>\n
One recycler expects magnets to reach 40 percent of its tonnage next year<\/h2>\n
The same magnets keep satellites pointed in orbit<\/h2>\n
Most of the aging fleet has 25 years left to run<\/h2>\n