Latest / The Manufacturing Podcast with Fexingo: Factories, Supply Chains, and Industrial Business / How a Japanese Factory Recycles Wind Turbine Blades
Transcript
- Lucas: So there's a factory in Kitakyushu, Japan, that's doing something that sounds almost impossible. It's taking decommissioned wind turbine blades—these massive, fiberglass and epoxy structures that are built to survive hurricanes—and breaking them down into materials that can be reused in new products. And they're doing it at a commercial scale, not just in a lab. Luna: Wait, wind turbine blades are notoriously hard to recycle. I've heard they're basically designed to be indestructible. How are they pulling this off? Lucas: The key is a chemical process that dissolves the epoxy resin, leaving the fiberglass intact. The company is called Admetal, and they've been working on this for over a decade. They use a solvent at high temperature and pressure to break the cross-linked polymer bonds. It's a bit like un-baking a cake. Luna: Un-baking a cake—I like that image. But what do you get out of it? Is the fiberglass actually good enough to be used again? Lucas: That's the part that's genuinely impressive. The recovered fiberglass retains about ninety percent of its original strength. So instead of downcycling—like turning blades into cement filler, which some companies do—they're getting a material that can go back into high-performance applications. They're even using it to make new wind turbine blades. Luna: Hold on, they're making new blades from old blades? That's a closed loop. How much of the blade are they actually able to recover? Lucas: They claim a recovery rate of about ninety-five percent by mass. The resin is converted into a fuel, and the fiberglass is cleaned and re-spun into new fiber. There's a small amount of waste, but it's a tiny fraction of the original blade. Compare that to the standard practice—which is literally burying them in the ground. Luna: And that's the problem, right? I mean, the wind industry has been booming, but what happens when all those blades start reaching end of life? It's a ticking clock. Lucas: Exactly. The Global Wind Energy Council estimates that by 2030—just a few years from now—we'll have about forty-three million tons of blade waste globally. That's enough to fill over a million dump trucks. And most of it is going to landfills right now. The blades are so large—some are over a hundred meters long—that they're incredibly difficult to transport and process. Luna: So this Japanese factory is stepping in to solve a problem that's about to get a lot worse. But I imagine this isn't cheap. How do they make the economics work? Lucas: That's the million-dollar question, and honestly, it's still a challenge. Recycling a blade costs more than landfilling it, so it really comes down to regulation and corporate sustainability goals. In Japan, there's a strong push toward a circular economy, and the government has been funding projects like this. Plus, companies like Vestas and Siemens Gamesa—the big turbine makers—are under pressure to make their supply chains more sustainable. So they're willing to pay a premium for recycled materials. Luna: So it's not purely market-driven yet, but there's a policy push. That's interesting. And I read somewhere that the European Union is banning landfilling of composite materials. Is that happening? Lucas: Yeah, the EU is moving in that direction. They've got the Circular Economy Action Plan, and there's talk of extending landfill bans to include composites. If that happens, every turbine blade that comes down in Europe is going to need somewhere to go. That's a huge opportunity for recyclers like Admetal. Luna: And it's not just Europe—I'm thinking about the US where a lot of wind farms are getting old. Texas, for example, has thousands of turbines. What's happening there? Lucas: In the US, it's still a patchwork. Some states have stricter waste rules, but there's no federal mandate. That's why a lot of blades are still ending up in landfills, especially in places like Wyoming and Iowa. It's a real problem because these blades are so durable—they're designed to last twenty to thirty years, and they don't break down naturally. So we're essentially creating permanent waste. Luna: That's a heavy thought. But it also makes me think about the broader picture—if this recycling process works for blades, could it apply to other composite materials? Like in aerospace or automotive? Lucas: That's exactly what Admetal is betting on. They're already working with aerospace companies to recycle carbon fiber from airplane parts. And they're looking at automotive, where composites are becoming more common in high-end electric vehicles to save weight. So the potential is huge, but the scale is still small. Right now, their plant in Kitakyushu can process about one thousand tons of blades per year. That sounds like a lot, but compared to the forty-three million tons of waste we're heading toward, it's a drop in the bucket. Luna: So we're at the beginning of a transition. It's promising, but there's a long way to go. And I guess that's where listeners come in—I mean, thinking about our own work, if we can make small changes, they can add up. Lucas: You know, that's a good point. And it reminds me—these conversations we have, they're possible because of listeners who support the show. A couple of dollars a month is genuinely what keeps these going. If you've gotten something out of them, you can buy us a coffee at buy me a coffee dot com slash fexingo. It's a small thing, but it makes a real difference. Luna: Yeah, even the price of a coffee a month helps keep us independent and ad-free. We really appreciate it. Lucas: So, back to the blades. The interesting thing is that this isn't just a recycling story—it's a manufacturing story. Because the real challenge is scaling up to handle the volume. And that requires investment in new infrastructure, new logistics, and new supply chains. Luna: And new business models, too. I'm curious—how does Admetal actually make money? Are they selling the recovered fiberglass, or charging a fee for the recycling service? Lucas: It's a bit of both. They charge a gate fee for taking the blades, similar to how a landfill charges. But they also sell the recovered fiberglass and the resin-derived fuel. So the revenue comes from multiple streams. The challenge is that the gate fee is often not enough to cover the processing costs, so they're betting on the value of the recovered materials going up as the market matures. Luna: So it's a bit of a leap of faith. But it's a necessary one. Do you think we'll see more factories like this popping up in the next few years? Lucas: I think so, especially in places with strong environmental regulations. Europe is likely to be the next big market, and there are already pilot plants in Denmark and Germany. But the US and Asia are also starting to show interest. The technology is proven, now it's about economics and policy. Luna: Well, and about the fact that these blades are huge. I mean, transporting them is a logistical nightmare. How are they even getting them to the factory? Lucas: That's one of the biggest hurdles. Blades can be over a hundred meters long, and they're not designed to be taken apart easily. So you have to use specialized trucks and even ships to move them. Admetal actually developed a mobile cutting service—they send crews to wind farms to cut the blades into smaller pieces on-site, which makes transport more feasible. They've been doing this for a few years now. Luna: So they're solving the logistics problem too. It's a full-service approach. I have to say, this is one of the most optimistic manufacturing stories I've heard in a while. Lucas: It's definitely a bright spot. And it's a reminder that innovation doesn't always mean creating something flashy—sometimes it's about figuring out how to deal with the stuff we already have. There's a lot of value in that, both economically and environmentally. Luna: Absolutely. So, for someone listening who works in manufacturing or supply chain, what's the takeaway? What should they be paying attention to? Lucas: I'd say watch the regulatory environment. If your industry uses composites, or any material that's hard to recycle, the rules are going to change. And the companies that get ahead of that curve—like Admetal—are going to have a competitive advantage. It's not just about being green; it's about being prepared for the future. Luna: That's a solid takeaway. And it's a good note to end on. Thanks for joining us, everyone.