Allen, Rosemary, Yolanda, and Matthew discuss highlights from Blades USA including the carbon blade debate. Plus TPI Composites’ bankruptcy sale hits major obstacles as partners dispute over $100M in claims. And Europe’s offshore and onshore wind developers clash over state aid, with WindEurope’s new CEO urging unity. Sign up now for Uptime Tech News, our weekly newsletter on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on YouTube, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary’s “Engineering with Rosie” YouTube channel here. Have a question we can answer on the show? Email us! [00:00:00] The Uptime Wind Energy Podcast brought to you by Strike Tape, protecting thousands of wind turbines from lightning damage worldwide. Visit strike tape.com. And now your hosts. Allen Hall 2025: Welcome to the Uptime Wind Energy Podcast. I’m your host Alan Hall, and I’m here with Yolanda Padron, Rosemary Barnes and Matthew Stead. Yolanda and Matthew have just wrapped up a couple of days at the Blade USA forum in Austin, Texas. Maybe we should start there. Thoughts on the forum this year? Things that were highlights? Matthew Stead: Yeah. Lightning Root de bond. One positive was that, um, there are a couple of startups there, so, you know, kudos to them for, you know, making the investment. There was a. There was a startup around, you know, data analytics and, you know, bringing machine learning in. And then there was also another startup looking at recycling. [00:01:00] Um, really trying to get that, that food chain through of, um, you know, grinding and then turning into some sort of valuable product. Um, yeah. However, I think someone also from EPRI said that, you know, at the moment, you know, the recycling path is, you know, eight times more expensive than the, um, the landfill path. There was a lot of carbon discussion actually. So, and, um, yeah, a lot of discussion about repairs, a lot of discussion about testing, uh, a lot of discussion about, you know, how maybe a carbon blade can last 40 years. Um, so a lot of discussion about lifetime extensions around carbon. Um, but, but, but, but, you know, really, really hard to repair. Allen Hall 2025: That goes back to the comments Rosemary and Morton Hanberg made about carbon blades. Should we be making. Carbon blades are not. And I think Morton’s opinion, and maybe Rosemary’s, I don’t wanna speak for her, was carbon blades are okay, but they are really difficult to repair. Almost impossible to repair. And is it [00:02:00] worth even building them? Rosemary Barnes: I think if you consider the blade in isolation, then it probably is adding more headaches than it’s worth. But carbon fiber is a bit of an enabler for improvements across the whole system of a, a wind turbine. ’cause when you take, like you can take a lot of weight out of a blade by using carbon fiber. I mean, it’s never been cheaper to make a blade with carbon fiber than an equivalent blade with glass. You do, you buy the more expensive carbon fiber blade because it’s lighter, a like, a lot lighter, and then you can take, um, weight. It, it reduces the requirements for basically every other component in the wind turbine, but especially stuff like the pitch bearings. Um, so you solve a lot of other problems, but you create blade problems. So. I think if you ask some of the only works on maintaining blades, then you’re gonna be like, why would you make a carbon fiber blade? It is so much headache. Um, but that’s not the reason why they were ever made in the first place. [00:03:00] So you’d need to talk to, you know, somebody on, uh, I dunno, front end engineering. Someone from the sales team about why it is that they are going with a more expensive carbon fiber blade. Even acknowledging that they probably underestimate how many problems there are with o and m with, uh, carbon fiber blades. But even so, like they’re already aware that there are trade offs. Um, and yeah, there’s non blade reasons for, for taking, taking that pain. Allen Hall 2025: Are there other fibers that could be substituted besides carbon? There, I, I know fiberglass. A, a good, relatively strong fiber and carbon obviously is much stronger. But are there things in the middle that could be substituted that are non-conductive? Rosemary Barnes: Uh, y yeah, there are, but carbon fibers, it’s not just strong. It’s really stiff. And that’s what its benefit is. Um, like there’s Kevlar but it’s not very stiff. So you would, we would make a really heavy blade if you used Kevlar. It would be probably bulletproof though. So I guess that would be a plus. I, I haven’t looked into it recently, but nothing is [00:04:00] at the, um, like got the performance specs and the cost specs that you would need to, um, make it ...
続きを読む
一部表示