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Uptime Podcast – Weather Guard Lightning Tech
Hosted by Allen Hall, Rosemary Barnes, Yolanda Padron & Matthew Stead · EN
The Wind Turbine LPS Retrofit
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Dogger Bank Wake Lawsuit, EverWind Hydrogen Farm
2d ago00:17:19Tap to summarizeWeather Guard Lightning Tech Dogger Bank Wake Lawsuit, EverWind Hydrogen Farm Rosemary previews Pardalote’s new hands-on blade repair course. EverWind’s Ocean Lake, Canada’s largest wind project, will feed a green hydrogen and ammonia plant in Nova Scotia rather than the grid. Plus BP’s exit from an offshore project in Japan, and the wake-effect lawsuit pitting SSE, Equinor, and Vårgrønn against RWE’s Dogger Bank South. 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! The Uptime Wind Energy podcast, brought to you by StrikeTape. Protecting thousands of wind turbines from lightning damage worldwide. Visit striketape.com. And now your hosts Allen Hall 2025: Welcome to the Uptime Wind Energy podcast. I’m your host, Allen Hall. I’m here with Matthew Stead, Yolanda Padron, and Rosemary Barnes is back this week. Rosemary, you’ve been to a number of training courses over the last couple of weeks. The first off was GWO. What was your experience at GWO training? Rosemary1: It was the fourth or maybe even fifth time that I’ve done it. Um, I did it a few times in Denmark and then, uh, this is the second time doing it in Australia. also, this was my first time doing first aid in Australia. Last time they did GWO here, but my first aid was still valid from Europe, so I, I didn’t redo it. And it’s like so much about [00:01:00] snakes and spiders and jellyfish But a good, good rule of thumb, not 100% accurate, but good rule of thumb, if it is something from the ocean that stung you, then you put something warm on it, and if it’s something from the land that stung or bit you, then something cold on it, Allen Hall 2025: well, how often do you usually take GWO training? Rosemary1: You gotta do it every two years to be valid. I don’t do it every two years because, um, if you do it every two years, like within two years, then you can do the refresher course. So that’s three days instead of four However, um, because I don’t climb constantly, like often it will be six months or more in between climbs, I’ll just do it before I know that I’ve got a climb. all the other people except for one were technicians who, you know, have been working for a while. So they’re also doing the full course, not the refresher. So they get a little bit more practice than I do. But, um, it’s just not often enough. Y-you know, like every time I go it’s like I, I really feel the need to have the refresher, um, because I’m just not fully on top of it. ‘Cause it’s [00:02:00] not just that you need to know what to do. You need to be able to… Like if you need to use it, you’re gonna be freaking out, you know? This is the worst thing that’s probably ever happened in your life, and now you’ve gotta remember all your training. It’s like you want it to be actually second nature to some extent. So yeah, first day is manual handling, which is v- you know, very– That one’s very easy and I would be happy to never do that again. Like I will always remember that. Um, then you got fire, um, fire safety awareness, and that one’s just fun ’cause you just get to, um, light fires and put stuff out then first aid, which I definitely always want a refresher on. The CPR dummies at this place, they had lights, um, and it lit up green if you were doing it right, and I haven’t used a dummy that was so advanced before, so that was quite good. I realized I wasn’t pressing hard enough. and then yeah, last two days is working at heights training, which is the most intense ’cause you got your harness on all day and, um, you know, climbing up and down and rescuing people. this was Rite Training in Goulburn, and, um, the [00:03:00] instructor’s name was Claire. highly recommend doing that one. Allen Hall 2025: Is that a general requirement in Australia that you have GWO before you can climb? Rosemary1: Like, yeah, they will sometimes, um, let you climb if you are babysat by people. I would not recommend other engineers, like if you’ve never climbed a wind turbine before, like I would really not recommend that you just go up with a team and haven’t done the training because you do need to be able to use a ladder safely and, um, you can, y- you can easily, like even inside the nacelle, you could easily hurt yourself really badly if you’re used to working in an office, uh, you’re upping your danger level by, you know, like many, many, many times by going up a turbine and it’s just something that you gotta take seriously. Allen Hall 2025: How busy are the courses in Australia? Are a lot of technicians trying to get in and get trained? Rosemary1: No, it’s people that have a job that are getting trained. But there were heaps of techs in this course. There were maybe eight or so, which is also part of the reason why it took a really long time. Allen Hall 2025: So [00:04:00] this week, as we record, y- you’re presenting a blade repair course for engineers and technicians. a completely new area that you’re, uh, going into in terms of offering advice and expertise that it’s really hard to find on the planet. It’s probably a, a, a busy or, or requested course, I would imagine, in Australia, where you just don’t have access to a lot of the manufacturers. Rosemary2: it’s a, it’s a course for just for engineers or technical type people, um, but including hands-on stuff. So the way that I I forced this to come into being was just the last five years. I, um, you know, I started working a lot on wind turbine blade repairs and, um, people would ask me, you know, “Have these repairs been done right?” And the thing is that the only repairs that I had anything to do with when I was working at LM were weirdo ones, right? [00:05:00] Where the normal, like a technician couldn’t, couldn’t handle it. It was outside of, um, yeah, their, their standard, uh, kind of repairs that they can do for whatever reason. and now in the work that we do at Part Load, it’s primarily normal repairs, and I just didn’t know exactly what technicians know. You know, how do they, how do they know whether they can repair it or not? What do they know before they go up there? When are they calling the engineer? Um, all that sort of stuff, like the normal stuff. eventually it became less about me learning, ’cause like I said, I kind of picked up most of it. Um, but now I’ve got staff that I’m training up to be, uh, you know, composites engineers and to work with these kinds of issues. There’s a lot of repetitive tasks involved in what we do when we, like, assess the condition of a wind farm. A lot of what we do is look main- manually looking through photos and thing- if things are classified right or not. I [00:06:00] Found this guy from Direct Wind Services, Jurij Eska. He’s a blade engineer. He’s worked in Europe and then come back to Australia, so a little bit like me. And, um, I just worked with him on a few projects and I’m like, “Oh, okay. Well, this guy, uh, he really ...
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Poland Powers First Offshore Wind, Vestas Expands in Japan
3d ago00:03:27Tap to summarizeWeather Guard Lightning Tech Poland Powers First Offshore Wind, Vestas Expands in Japan Allen covers Poland connecting its first offshore wind farm, Ocean Winds reaching full power in the Mediterranean, Stiesdal’s floating wind cost breakthrough, Vestas expanding in Australia and Japan, a federal permitting freeze stalling 250 US projects, and India passing 50% clean power. 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! Happy Monday, everyone. A coal-dependent nation just plugged into offshore wind for the very first time. Poland’s power grid received electricity this past week from its first offshore wind farm in the Baltic Sea. It’s called Baltic Power, a joint venture between Poland’s Orlen and Canada’s Northland Power. It began sending electricity from its 76 turbines to shore — about a 1.4-gigawatt site, enough to power more than 1.5 million Polish homes. And this is more than just one wind farm. Poland is shifting its entire energy map. For decades, the center of electricity generation sat in the coal-rich south. Now it’s moving to northern Poland, to the coast. The country plans six gigawatts of offshore wind by 2030. Equinor and Ørsted are both set to build along that Polish shoreline, and that’s good news. A new 530-million-złoty substation — about $140 million — is part of a plan to build nearly 5,000 kilometers of high-voltage lines to carry the power to southern Poland. Coal still supplies more than half of Poland’s electricity, but that number is about to change. And now down to the south of France. Ocean Winds, the offshore wind company created by EDP Renewables and Engie, just reached full power at a floating wind farm in the Mediterranean Sea. It’s three 10-megawatt turbines sitting on semi-submersible floaters 16 kilometers off the coast. It’s a pilot project, but the lessons are real: 99% of the suppliers are European, 85% French, and it proves that floating offshore wind can work in deep Mediterranean waters. Now we’ll stay with floating wind for a moment. Danish company Stiesdal Offshore says it has cracked the cost code, and this is important. The company modeled what it would take to build a full-scale floating wind farm — one gigawatt from a single port in a single installation season, loading out one turbine per week. And the cost? Less than one million euros per megawatt. That is on par with the jacket foundations used for fixed-bottom turbines in deeper water. About 80% of the world’s oceans are roughly too deep for conventional foundations. And if those numbers hold — one million per megawatt — floating wind just got a whole lot more investable. Meanwhile, Danish Vestas is making moves on two continents. In Australia, the Danish giant bought a 272-megawatt project in Tasmania from Ark Energy. It’s called the St. Patrick’s Plains Wind Farm, and once built it would be the biggest wind project site in the state. Vestas now has more than 13 gigawatts of wind projects in its Australian pipeline. So the model is clear: buy early-stage projects, bring in investors and offtakers, then supply the turbines to build the farm. The turbine supplier is turning into a wind developer. And over in Japan, Vestas secured backing from the Japanese government to build a wind turbine assembly factory. Japan’s Ministry of Economy, Trade and Industry has committed support for the facility. Vestas already has about two gigawatts of turbines installed in Japan, including machines at the country’s largest operational offshore wind farm. A factory on Japanese soil puts Vestas closer to an offshore market that is just getting started. Now we turn back to the United States. In Minnesota, four wind energy projects are stuck in limbo. The Department of War has stopped completing national security reviews for proposed wind farms. Those reviews used to be routine. A new report says more than 250 wind projects are stalled nationwide because of it. In Minnesota alone, the four frozen projects represent over one gigawatt — that is more output than the state’s twin nuclear reactors at the Prairie Island Power Plant. So at stake is $1.6 billion in direct investment, about 5,600 jobs, and more than $168 million in economic impact. Nine clean energy groups have sued the War Department to break the logjam. And over in Ohio, the state senate passed a bill that could block many new wind farms and solar farms. The bill says power sources must be available at least 50% of the time, and wind and solar on their own rarely hit that number. The Ohio Chamber of Commerce opposes the bill, and so does the grid operator. But the bill has passed the Senate and now heads to the House. And what a mess Ohio is creating for itself. And finally, in India, for the second time ever, clean energy met more than 50% of the country’s electricity demand. It happened on July 6th. And in the first half of 2026, India installed nearly 29 gigawatts of new solar and wind combined. The country now has about 288 gigawatts of renewable capacity. A nation of 1.4 billion people just crossed the halfway mark on clean power. It’s pretty good — and they’ve done it twice now. So here’s what to watch. The industry’s next chapter is not just about who builds the most megawatts. It’s about who controls the choke points: ports, permits, foundations, factory floors. The companies and countries solving those problems are the ones that will lead. And that is the state of the wind industry for the 13th of July, 2026. Join us for the Uptime Wind Energy podcast tomorrow.
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WindQuest Advisors on Repowering and Rising O&M Costs
1w ago00:24:42Tap to summarizeWeather Guard Lightning Tech WindQuest Advisors on Repowering and Rising O&M Costs Dan Fesenmeyer, Managing Partner at WindQuest Advisors, joins to discuss the repowering rush and the FAA permitting stall, rising O&M costs on larger turbines, tariff pass-throughs, and AI data center demand. 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! Welcome to Uptime Spotlight, shining light on wind energy’s brightest innovators. This is the progress powering tomorrow Allen Hall: Dan, welcome back to the podcast. Dan Fesenmeyer: It’s great to be here. Great to see you again. Allen Hall: There is so much happening in your particular area. Your name pops up quite a bit within Weather Guard because, uh, we’re dealing with a lot of operators and- A number of times we’ll ask them, “Have you read your turbine supply agreement?” “No.” “Have you read your full service agreement?” “No.” “Well, maybe you should do that.” And then we say, “Have you talked to Dan? You should call Dan, ’cause he can help you understand what you have signed.” Mm-hmm. “Oh, that’s probably a good idea.” So now that you’re here, WindQuest Advisors, of course, obviously is your company. Mm-hmm. And you’re talking to a number of operators. The, the big hurdle at the minute, the nearest short-term hurdle, is repowering. There’s just a lot of [00:01:00] repowering efforts going on- Mm-hmm … trying to get turbines in, start a project. There’s a July 4th deadline and an end of the year deadline. There’s a couple deadlines after that. What are you seeing right now from operators i- in terms of repowering? What’s the effort happening? Dan Fesenmeyer: Well, there was a ton of effort to start physical work. That window’s obviously closing- Allen Hall: Yes … Dan Fesenmeyer: very quickly, but it’s still open. Uh, and then once you’re past that window, my understanding is if you get your repower completed by the end of ’27, you didn’t really need to have started physical work. But I think most folks, start physical work is kind of the insurance piece of it- Allen Hall: Sure … Dan Fesenmeyer: if things take longer. Uh, another thing that’s popped up is obviously FAA and other permitting. Allen Hall: On the permitting side, from the federal’s, uh, standpoint, is that stopped? Or, or are projects able to continue putting turbines in the ground, or what’s the status? Dan Fesenmeyer: My- From what I’ve seen, I think on the opening session here at [00:02:00] ACP, it was said, they said that there’s, like, 130 projects that are- Allen Hall: At least … Dan Fesenmeyer: caught. Yes. And I’m, I’m involved with some of them, and I have a fairly small shop, and there’s just no FAA variances or permits or- They’re not issuing- … mitigation studies. Everything seems to have stopped. Allen Hall: So they’re not even reviewing the documentation that’s been submitted by the operators at all? Dan Fesenmeyer: That’s what it seems, yes. Yeah. Allen Hall: Is that legal? Uh, uh, usually those federal requirements have a timeline which they’re able to review those permits and get them approved or disapproved them. You’re s- Right … I think what I’m hearing is, what you’re saying is they’re not even looking at them. Dan Fesenmeyer: That’s correct. That’s what I’ve heard and seen. Allen Hall: Okay. Dan Fesenmeyer: Yeah. Yeah. Allen Hall: So what is an operator to do then? How does this, how do they meet some of these deadlines if they can’t get the permit? Dan Fesenmeyer: Well, I mean, it stalled a lot of projects ’cause of the associated risk with it. Although I’ve seen some, uh, you know, some repower folks think, “Well, you know, I’m just repair- repowering like for like, or I’m not changing much.” [00:03:00] But if your, if your rotor’s changing or pad location’s changing, you need to update those permits. Allen Hall: So the, the groups and the operators that are repowering the existing turbines are putting basically the same turbine in the same hole. Dan Fesenmeyer: Well, Allen Hall: I- Would that be okay? Dan Fesenmeyer: I would say originally- The initial push on repower was kind of your larger rotors- Sure … new drivetrain, et cetera. Yes. The market seemed to shift more towards, “Hey, let’s do smaller upgrades, component exchanges.” Allen Hall: Okay. Dan Fesenmeyer: Getting more towards the minimal investment, so to speak. Allen Hall: The 80% investment portion. Dan Fesenmeyer: Yes. Allen Hall: Right. Dan Fesenmeyer: Yeah. And less about, you know, a big new machine head, for example. Allen Hall: Well, if that gets you through and gets you the, the, uh, tax credit started back up again, which is the whole point- Right … there would be a reason to do that. Dan Fesenmeyer: That’s right. Allen Hall: Is there a marketplace then for those components if you’re gonna repower a GE 1.5 machine, which there’s a lot of them- Mm-hmm in the United States? Are you seeing a big emphasis to go get a new gearbox, [00:04:00] to upgrade the blades- Yeah, and, and- … kind of Dan Fesenmeyer: thing? Or just do maybe a drivetrain and s- Okay … and leave the rotor or, or- Allen Hall: So do a gearbox and- Dan Fesenmeyer: Yeah. Gear or just full drivetrain- Or generator … or yeah, s- things like that. And, um- Wow people are comfortable doing it, and then it’s e- it’s easier, obviously. ...
Transcribe →GE Vernova Backs LM Wind Power, KKR Buys EDF Assets
1w ago00:26:55Tap to summarizeWeather Guard Lightning Tech GE Vernova Backs LM Wind Power, KKR Buys EDF Assets GE Vernova pumps $1 billion into LM Wind Power, and KKR buys EDF’s US and Canada renewables arm. Plus CIP sweeps South Korea’s offshore auction and the CME plans wind derivatives across three continents. 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! The Uptime Wind Energy podcast, brought to you by StrikeTape. Protecting thousands of wind turbines from lightning damage worldwide. Visit striketape.com. And now, your hosts. Allen Hall: Welcome to the Uptime Wind Energy podcast. I’m your host, Allen Hall, and I’m here with Matthew Stead and Yolanda Padron. Rosemary is at GWO training this week. And we have an announcement about Wind Energy O&M Australia 2027. Matthew, you wanna give all the details? Matthew Stead: Drum roll Um, very pleased to announce that WOMA 2027 will be at the East Pullman Hotel in Melbourne’s east, uh, not the other one, and, uh, 3rd to 5th of March. Um, the first two days will be two days of wind O&M, uh, conferences, [00:01:00] uh, and then the Friday will be a half-day, uh, training session. More information to come. Allen Hall: Well, she’s not here, so we can probably just announce it, that Rosemary will be giving a terrific four-hour-long seminar on blades and blade repair, so you sign up now. Matthew, where do you go if you wanna just check out what’s happening at WOMA Matthew Stead: 2027? Uh, well, actually, it’s woma2027.com. Allen Hall: Uh, over at GE Vernova and LM Wind Power, there’s been a whole bunch of turmoil over the last couple of years if you haven’t been paying attention. Well, GE Vernova just injected about a billion dollars into that company. So although LM recently has shown very little in terms of revenue, it definitely had needed some capital injection in, uh, at least according to the Danish press, the number of employees at the Danish site is about 20 to 30. So it’s really a fraction of what it once was. But [00:02:00] it does seem like GE is paying off all its existing debt and then giving it a little bit of a cash infusion to keep it rolling. The question really is, is what is GE Vernova gonna do with that business now? Are they planning on keeping it? Are they trying to get s- to get it back to health where they can service the other, uh, OEMs that they manufacture blades for? Or is there a larger action that will happen in the near future? What do we think? Matthew Stead: Yeah, I’m really confused by this one. I mean, a cash injection just so that you’re not bankrupt on paper is, um, that’s just playing with money as far as I’m concerned. Or I’m not sure if it’s a US term, but, you know, shuffling deckchairs on the Titanic. It doesn’t– Does it change anything? Allen Hall: Well, uh, th- they made no announcements about closing facilities. The LM blade facility in North Dakota still appears to be making blades. There’s the TPI factories, which are going through a transition r- right now, appear to be making GE [00:03:00] blades. I, I assume Gaspé up in Canada is still making blades, at least that’s the story. If GE’s gonna rely upon LM to make blades, they’re gonna need to keep them open. Is, is this more of just keeping the factories open with a skeleton engineering crew and possibly moving the blade design group into the States? Is that– Or India or, or somewhere? Yolanda Padron: And they’re still selling, right? They’re still selling blades. It seems like they’re still planning on manufacturing blades. Do we think that maybe- They’re just trying to avoid that whole TPI bankruptcy deal to not have to kind of scrap for parts? Allen Hall: Yeah, it’s a great question. I think TPI has been producing parts at high quantity, and some of the Things I’ve heard from the industry folk is that TPI is really busy in producing quality blades, and it’s like the bankruptcy transaction is not happening, which is great to hear because the [00:04:00]industry needs blades, and there’s a lot of repowering going on in the United States and a lot of activity in general, so they need blades. But does LM continue to be a part of that? Matthew Stead: Yeah, I mean, presumably the TPI, um, whole story only makes LM more important, you know, more important to have, uh, an additional manufacturer and, you know, providing, you know, options for the OEMs. Allen Hall: It does seem like, though, the GE offshore, GE Vernova offshore is not a thing. Although I’ve heard a couple of rumors that, yeah, GE Vernova is offering some products for offshore, it doesn’t seem like their heart is in it. I can see that happening. So are they just trying to focus on onshore business, and that’s it for the time being? Just let it play out and, uh, wait until the elections in 2028? I know that’s gonna get me blocked on YouTube, but that, that does feel like what’s happening at the moment. Matthew Stead: Yeah, I reckon it looks completely like that. Yolanda Padron: I mean, it also looks like they’re [00:05:00] just kind of trying to play everything a little bit more safe, right? So they are scaling up, but not as fast as they used to, so scaling the blade sizes. And then they’re– it seems like they’re, they’re having their FSAs cut quite a bit shorter than they used to, right? So are they maybe just trying to focus on, like, cash up front and just trying to play it safe until they can get their, their footing right again? Allen Hall: Or is it focus on key customers? I could see GE Vernova actually doing that, that they have a history with certain operators worldwide, and they’re just gonna focus on producing and delivering for those customers. Because you don’t see a lot of announced orders for GE turbines. Vestas is announcing things practically every week. Nordex is doing something similar. Siemens once in a while. But what you really don’t hear anything from in any quantity at [00:06:00] all at the moment is from GE Vernova. When a company needs cash badly enough, even the crown jewels go on the block. And EDF, the French state-owned utility, has to fund the upkeep of 57 aging nuclear reactors and build six new ones, so it is selling. EDF has agreed to hand its US and Canada renewables business, EDF Power Solutions, to the private equity firm KKR. The business runs 5.6 gigawatts of renewable assets across the two countries. Late last year, EDF’s chief executive floated selling anywhere from half to all of the unit in a deal that could be, well, it’s reported to be about $4.2 billion. That’s the latest news I’ve heard. This is a big transaction. KKR is Canadian, right? And is a massive investment firm Uh, which I, I don’t think have a lot of wind at the moment. Uh...
Transcribe →Storm Damages ENGIE Wind Farm, Mexico Plans 7 GW
1w ago00:03:00Tap to summarizeWeather Guard Lightning Tech Storm Damages ENGIE Wind Farm, Mexico Plans 7 GW Allen covers a storm that damaged ENGIE’s South Dakota wind farm, Sumitomo exiting two Belgian offshore farms, Envision’s loss in Denmark, and Continental building its own wind farm. 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! Happy Monday everyone. Sometimes … Mother Nature reminds the wind industry who is really in charge. Late last month … hurricane-force winds ripped through Hyde County, South Dakota … tearing into the Triple H Wind Farm operated by French energy giant Engie. One hundred and thirty-one miles per hour … as strong as a Category Four hurricane. More than twenty of the site’s ninety-two turbines … damaged. The two-hundred-fifty-megawatt complex is out of service … and turbine supplier GE Vernova is on-site now … assessing the wreckage. No injuries … but the governor declared a state of emergency. The machines that harvest the wind … taken down by the wind itself. Now … while one wind farm goes dark in the American plains … ownership is reshuffling across the North Sea. Japan’s Sumitomo Corporation has exited two Belgian offshore wind farms … selling its stakes to joint venture partner Jera Nex BP. That is the partnership between oil major BP and Japan’s largest power generator Jera. Jera Nex BP now has full ownership of the two-hundred-nineteen-megawatt Northwester 2 … and has raised its stake in the one-hundred-sixty-five-megawatt Nobelwind to eighty percent. Both farms operate out of Ostend, Belgium … and have been generating power since 2017 and 2020. Sumitomo walks away … Jera Nex BP doubles down. Meanwhile … in Denmark … China’s Envision Group is seeing red for the first time in fifteen years. The company’s global innovation center in Silkeborg … a strategic research hub for wind turbine components and advanced manufacturing … posted a loss of just under one-point-three million Danish kroner. That is a swing of more than one hundred fifteen percent from last year’s profit. The culprit is not the technology … it is the currency. The U.S. dollar fell nearly twelve percent against the Danish krone in 2025 … and Envision’s books took the hit. Revenue also dropped eighteen percent … but management says the underlying operations remained stable. The machines still work … the math just changed. And speaking of money flowing into wind … a Turkish energy company just tapped an unusual source. Aksa Enerji … the largest publicly listed independent power producer in Turkiye … has secured one hundred twenty-four million dollars in financing backed by China’s export credit agency Sinosure. The money will fund a one-hundred-megawatt wind-plus-storage project in the southern province of Mersin. This is the first renewable energy project in Turkiye to receive a license as a storage-integrated facility. Aksa now operates power plants across seven countries … with more than three gigawatts of total capacity. Chinese capital … backing Turkish wind … with battery storage baked in from day one. Now … here is a story that might surprise you. Continental … the German tyre maker … yes … the tyre company … is building its own wind farm. Three Nordex turbines … each standing two hundred sixty-seven meters tall … right next to its tyre factory in Korbach, Germany. When they are online … those turbines and the factory’s existing solar panels will cover two-thirds of the plant’s electricity demand. Fifty-five gigawatt-hours a year … powering rubber mixing and extrusion lines … directly from the wind. Continental calls it a model for its production sites worldwide. Cheaper power … more predictable costs … and less exposure to volatile energy markets. The wind industry just gained a tyre company as a customer … and a competitor for electrons. And finally … south of the border. Mexico has eight gigawatts of wind power installed today … more than thirty-three hundred turbines across sixteen states. But the next chapter is already being written. The government plans to add nearly seven gigawatts of new wind capacity this term … part of a broader push for thirty-two gigawatts of new generation overall. More than two gigawatts of wind projects are pending allocation right now … and the industry estimates this next wave could mobilize four to five billion dollars in investment … building thirteen to fourteen new wind farms before the decade is out. The final decisions come in October. Here is what stands out this week. The wind industry is no longer just selling kilowatt-hours to utilities … it is selling energy independence directly to manufacturers … and that changes the customer base entirely. At the same time … capital for new wind projects is coming from places it never came from before … export credit agencies … cross-border joint ventures … and government allocation programs with billions on the line. The money is there … but so are the risks … currency swings … extreme weather … and the constant reshuffling of who owns what. For wind energy professionals … the takeaway is simple … the industry is growing … but the business model around it is getting more complex by the quarter. The turbines keep turning. And that’s the state of the wind industry for the 5th of July 2026. Join us for the Uptime Wind Energy podcast tomorrow.
Transcribe →PowerCurve Recovers India AEP, Silent Edge Cuts Noise
2w ago00:26:32Tap to summarizeWeather Guard Lightning Tech PowerCurve Recovers India AEP, Silent Edge Cuts Noise Nicholas Gaudern, CTO at PowerCurve, joins to discuss India AEP gains, DragonScale VGs, and Silent Edge noise reduction. 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! Welcome to Uptime Spotlight, shining light on wind energy’s brightest innovators. This is the progress powering tomorrow Allen Hall: Nicholas, welcome back to the podcast. Nicholas Gaudern: Thanks, Allen. Great to be back. Allen Hall: So there’s a lot going on at Power Curve, and I saw some news online about Power Curve in India. Nicholas Gaudern: Yes. Allen Hall: Which is a new development. Nicholas Gaudern: Yeah, so we’ve been working in India for, for some years now, and we have, uh, more than 100 turbines out there with our equipment on, primarily vortex generators so far. And what we’re seeing in India is some of the highest AEP gains we’ve ever recorded with our vortex generators And I think a lot of this is being driven by the fact that in certain parts of India, there’s some very unique, uh, environmental conditions, climatic conditions, and there’s parts of the year, like the dry season up in [00:01:00] the north of India, where you’re getting this very sticky dirt accumulating on the blades. And it’s really quite dramatic when you see the photographs, but that means that the blades are actually starting to, to stall, have flow separation on them. Allen Hall: I’ve seen pictures of that. Yeah. I was really shocked at the time, uh, ’cause I didn’t know it was just kind of a black, gooey- Yeah … kind of tar-like substance- Yeah, yeah on the blades, and, uh, it, it was only on there a limited time. As soon as the monsoons come through and the rains hit, it would wash, eventually wash it off. Yes. But while it’s there, you could see the airflow over the blade surfaces. You, you could definitely see separation happening really early on those blades. Dramatic. Nicholas Gaudern: Yeah, absolutely, and I think the, um… Like you say, it’s not all year. No. But it doesn’t have to be all year to have a huge impact on, on how many, you know, megawatt hours you’re getting out the other end. So there’s a few months of the year where this problem is particularly severe, maybe sort of December through to February, something like that. And what we’re finding is that when you see, uh, the power curves for these [00:02:00] turbines, some of them aren’t even hitting rated power. They’re not able to hit rated power because there’s so much flow separation on the blades. Allen Hall: Wow. Nicholas Gaudern: And that, I mean, just imagine that. You’ve got a two megawatt turbine, for example. Maybe it doesn’t cast- get past 1.5 megawatts for this, uh, time of the year. I mean, that’s crazy. Allen Hall: Does the turbine try to adjust itself when that happens? Because the pictures I s- have seen indicates, like, the turbine is pitching the blades to, ’cause it knows- It can- … Nicholas Gaudern: what the wind Allen Hall: speed is- I mean, yeah … and it knows what it should be putting out, and it’s not putting that out. Nicholas Gaudern: It’s very turbine specific, kind of controller logic specific, but what we see is even the turbines that try to do something, they’re very limited in how much pitch authority they have from the controller. They might be able to just do a little bit, a degree. Okay. Two degrees. You know, very, very small pitch adjustments. And when you have this kind of dirt on the leading edges, a degree of pitch ain’t gonna save you really. Um- N- Allen Hall: no. And I think that’s what we’re seeing. And it’s not gonna get that power back. No, no. Nicholas Gaudern: No. Allen Hall: But does it add extra load onto the blade structurally over [00:03:00] time when you do that? Nicholas Gaudern: In terms of the pitching, or- Allen Hall: Yeah, in terms of the pitching, where you’re trying to be more aggressive on the angle of attack to get the power out of the turbine. Potentially. And the winds are still pretty strong, you just, the blades are inefficient. Nicholas Gaudern: I think it’s one of those things where there’s, there’s so many interconnected items with the dirt and the controller and the structure. It’s actually pretty difficult, I think, to say with confidence how much life impact you would have from that. But what I would say is the more that you might end up trying to pitch, if that’s what’s going on on some machines, that obviously puts wear on the pitch bearings themselves. But yeah, I think at the moment we’re kind of at the beginning of really trying to understand how some of these turbines do deal with this phenomenon. But what we’re trying to do is get to a point where the turbine doesn’t really have to deal with it. Because if you fix the problem at the source, which is stop the flow separating, then the controller doesn’t really have to, to worry. It doesn’t have to try to, to fix it itself. Allen Hall: Yeah. That makes a lot more sense. Just the number of images I’ve seen over the last couple years from India- Nicholas Gaudern: [00:04:00] Yep … Allen Hall: you realize how difficult it is to operate a wind turbine there. Nicholas Gaudern: So even when we, um, have this issue for a few months that we’re resolving with the VGs, we can still be seeing over the whole year more than 5% increases in annual energy production. Because those months are really important. Um ‘ Allen Hall: Cause that’s when they need the Nicholas Gaudern: power. Yeah, yeah, yeah. Exactly. For sure. And this is primarily coming from the vortex generators towards the tips of the blades. So that’s where you’re having this, uh, heavy contamination issue, and that’s where all the power would be produced. So kind ...
Transcribe →Japan Backs Floating Wind, US Grid Sidelines Clean Energy
2w ago00:32:54Tap to summarizeWeather Guard Lightning Tech Japan Backs Floating Wind, US Grid Sidelines Clean Energy Japan and the UK sign a $12 billion floating wind deal for 5.9 GW, Muehlhan buys Coverwind Solutions in Spain, and US grid reform stalls as MISO, PJM, and SPP fast-track fossil resources over wind. 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! The Uptime Wind Energy podcast, brought to you by StrikeTape. Protecting thousands of wind turbines from lightning damage worldwide. Visit striketape.com. And now your hosts Allen Hall: Welcome to the Uptime Wind Energy podcast. I’m your host, Allen Hall. I’m here with Rosemary Barnes, just back from Japan, in Matthew’s stead. Yolanda Padron is on special assignment. Well, Rosemary, what happened in Japan? You, you spent a, a week touring the country and looking at, uh, some energy projects. What did you learn? Rosemary Barnes: I was there for just five, five nights. I went over for an, um, an, a systems engineering conference by INCOSE. I was doing a keynote presentation there, and also spoke to some of their… They’ve got this program, an international programming for, like, upcoming leaders. Um, and yeah, it was funny, the topic that I chose for [00:01:00] that was how you can combine an online presence with a serious professional career. Uh, ’cause, you know, like, a lot of the advice that you see about building an online presence is, like, totally compat- incompatible with being taken seriously in a, uh, you know, in a, a job like engineering. So that was pretty fun. And then on the last day, I was able to arrange a tour of a community. Like, we went to this village near Fukushima, and they, a- after the Fukushima, uh, or the earthquake that led to the Fukushima, uh, shutdown, that town, some power lines came down, and that, that village was without power for three months. So in response to that, they’re like, “Community power for the win.” At this place, like, there was literally steam coming out of the ground just, you know, randomly. It’s an onsen town, so you know, like, it’s, um, it’s built around tourism for these hot baths. And so they put in a couple of geothermal power plants, small ones, and, um, also some hydropower. But the reason why I wanted to go there was ’cause, you know, ge- [00:02:00]geothermal is such an obvious solution for Japan, for the energy, but they only have… .3% of their electricity is generated by geothermal currently. And, um, the main reason is that the onsen community in Japan is really opposed to it. They’ve lobbied against it because they’re worried that, um, you know, the onsen community needs heat to come out, hot water to come out of the ground, and geothermal takes hot water out of the ground, so they’re just worried that they’re incompatible. Um, now I think the science says that that’s not really true, that the, there isn’t, they’re not the same resource and that one doesn’t affect the other. The wastewater from the geothermal is not really wastewater. It’s just water that is not as hot as it was when it came up. Um, that goes down then into the onsen because it’s a good temperature. And then some of the even cooler water, about 21, 23 degrees, they’re using that to raise shrimp. Allen Hall: Well, just speaking of Japan, uh, the Japanese Prime Minister was just in the UK and a [00:03:00] big deal was signed between Japan and United Kingdom, £9 billion worth, which is about 12 billion US dollars, uh, to work together on 5.9 gigawatts of floating wind capacity in the UK, uh, across three different projects. W- And the goal is to get some Japanese partners working with, uh, the UK companies involved with it to suss out how to do offshore wind. And as we all know, Japan is gonna, is headed there right now and is going to need a little bit of a primer on how to do it. And, and, well, they should because, uh, there’s been some really successful efforts in the UK and up north, Northern Europe. Uh, so the, the goal of this is to, to get these projects underway and, and Japan’s committing all this money, which, uh, sure, it’s a nice boost to the UK at the moment. It gets a little turbulent over there if you’ve been watching the news. Rosemary [00:04:00] Tying back to your experience in Japan recently, is there a big push internally? Do you see that internally in Japan for offshore wind and even offshore floating wind in Japan, or are they really prepping for it in country? Rosemary Barnes: Yeah, I’d say I went over there thinking that Japan was, like, oddly not bothered about wind energy of any flavor. Um, ’cause, you know, like onshore wind, they’ve got problems because the good ri- wind resource is right on the ridges, and they’re getting just hammered by lightning, and they’ve got some, like, really interesting responses to how they think that they should manage that, that in my opinion are just gonna kill… Like, you would never bother to have an onshore wind farm if these, um, regulations go ahead. So offshore they have got, um, a bit of a, an, a fixed bottom resource, and they’ve had several auction rounds geared towards that, but they’re, um, they haven’t gone well. I think that, like, people have promised… It, it’s a similar story to elsewhere in the world. Uh, people have, like, bid, like, [00:05:00] bid down to quite low prices and then not been able to deliver and pulled out. Mitsubishi just recently paid some, uh, some huge penalty for not going ahead with a, a project. There isn’t actually that much fixed bottom potential, um, for Japan. So, um, if they wanna have a significant amount of wind energy in their grid, which they should, because they’re, like, honestly it is probably the best or one of the couple of best options to provide big chunks of their electricity supply, then it needs to be floating. Um, and the government is actually pushing on that. I thought they weren’t doing too much, but I did talk to someone from this group, Flora. It is a group that is, um, that, that is trying to form partnerships with other countries, but also with manufacturers to try and set the framework up so that it can, like, l- lay the groundwork for commercialization to happen without being prescriptive. Flora is in there [00:06:00] to try and, you know, get the pieces in place to be able to allow, um, you know, uh, innovation and competition to happen much, much faster. Allen Hall: What’s the most complicated piece technically that needs to be solved before Japan can really move forward? Is it the money piece? I mean, um, um, I said technically, but I feel like there’s always this money aspect to it, which is important, but on the technology side, i- is it, is there any technology that remains to be solved or is it just the will to do it? Rosemary Barnes: Basically in any engineering question, the answer is money, like, when you come down to it. So, like, it’s almost boring to say, yeah, it’s, it’s money. Floating offshore wind- Too hard, too niche for most people to consider it a mainstream thing, but it’s the legitimate, like, good contender for Japan. And you know what? That presents opportunity. It can actually be good to have to do something hard. Um, and Japan has the opportunity to be the [00:07:00] country where, you know, it&#...
Transcribe →SunZia Switches On, Ørsted Weighs Chinese Turbines
2w ago00:02:12Tap to summarizeWeather Guard Lightning Tech SunZia Switches On, Ørsted Weighs Chinese Turbines Allen covers SunZia coming online as America’s largest wind farm, Ørsted’s stance on Chinese turbines, a record floating platform leaving China, Canada’s first offshore wind bidders, and a centuries-old North Sea shipwreck. 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! Good Monday everyone. America just switched on the biggest wind farm it has ever built. Out in New Mexico … a vast field of spinning turbines called SunZia. Enough power for more than a million homes across the Southwest. It is a landmark. It may be the last landmark for some time. After this year … forecasters expect annual onshore wind additions to fall … all the way to twenty thirty. The tax credits that powered the boom … expire this year. Add tariffs … supply troubles … local opposition … and a federal permitting freeze. One developer put it plainly. Capital investments … frozen. Solar is cheaper now. Batteries are faster. And the wind industry did not see the breadth of the campaign against it. So the biggest American wind farm ever … arrives just as the road ahead narrows. Now … cross the Atlantic to Denmark. Ørsted … the offshore giant half-owned by the Danish state … is being asked a hard question. Will it buy Chinese wind turbines? Its chief executive will not say no. Right now … he says … it is not expected. But they are keeping an eye on it. Analysts call that a wake-up call. Because the Chinese builders offer lower cost … faster delivery … and bigger rotors. And if a European champion turns east for turbines … that is a signal Europe is losing its edge. Not everyone is buying it. Britain has banned Chinese turbines from its offshore projects. The competitiveness fight … is just beginning. Now set to sail from southern China. The world’s largest tension-leg floating wind platform. Sixteen megawatts. More than three hundred meters tall … and nearly eight thousand tons. It left port headed for the deep sea. And its power will run straight to an offshore oil field … clean wind … feeding fossil-fuel production. China connected more than three-quarters of the world’s new offshore wind last year. As the shallow sites fill up … the industry moves into deeper water. And the deep water … is where floating wind grows up. Across the Pacific … a brand-new frontier is opening. Canada cleared the first bidders for its very first offshore wind farms. Off the coast of Nova Scotia … seven qualified players … from nine countries. The province dreams big. A megaproject called Wind West … forty gigawatts … far more than the region could ever use itself. The first phase alone … an estimated sixty billion dollars. Enough surplus power to supply a quarter of all Canada’s demand. The formal call for bids comes later this year. And finally … a story that comes up from the seabed. While surveying the site of a future wind farm in the North Sea … Ørsted found something far older than any turbine. Three lead ingots … resting beside the bones of a wooden shipwreck. Late sixteen-hundreds … maybe early seventeen-hundreds. A Dutch vessel … likely bound for home … lost on the run from England to the Netherlands. Seventy kilograms each … mined, it seems, in the very English hills they will now return to. And that’s the state of the wind industry for the 28th of June 2026. Join us for the Uptime Wind Energy podcast tomorrow.
Transcribe →Everpoint’s BladeBlok Recycles Blades for Drilling
3w ago00:21:37Tap to summarizeWeather Guard Lightning Tech Everpoint’s BladeBlok Recycles Blades for Drilling James Timmins, VP of Engineering at Everpoint Services, joins to discuss how recycled wind turbine blades become BladeBlok, a drilling fluid additive for oil, gas, and geothermal wells. 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! Welcome to Uptime Spotlight, shining light on wind energy’s brightest innovators. This is the progress powering tomorrow Allen Hall: James, welcome to the podcast. Thank you. There has been a lot of activity at EverPoint Services. So I wanna back up first because if you’re not familiar with EverPoint Services, they are a recycler f- for renewable projects. James Timmins: So we’re a, a renewable energy service company that specializes in, um, decommissioning and remediation services for, uh, wind and solar assets. Allen Hall: So when a solar farm gets hit by hail and the panels are broken, EverPoint comes up and cleans up that mess to, to allow the repair to happen. James Timmins: Correct, yes. Allen Hall: And on the wind turbine side, you’re t- decommissioning wind turbines, but you’re also taking the [00:01:00] blades. James Timmins: Yes. So it’s our responsibility to haul off the damaged, I guess, the scrap. And, um, obviously there’s a very healthy market for scrap steel that you find in the tower base- Yes … but the fiberglass is a little less straightforward when it comes to disposal and/or recycling. Allen Hall: So typically with the fiberglass blades or any composite that’s, that’s being recycled, th- there’s really two techniques that are being implemented right now. Uh, well, really three. Let’s go over three of ’em. One of ’em is you can just bury them. They’re c- essentially construction materials, so you can bury them. Not ideal, but it has happened in the past. The second is they grind up the, the blades and use ’em in, uh, c- the cement-making process, where they’re burning some of the things that are combustible there and using it for fuel, but also the fiber can help with the cement. Does, does that sound right? Correct. And, and then the third one I’ve seen is just as a reinforcement product. [00:02:00] So it’s, uh, they chop up the fiber in different lengths, they clean it up, and you can u- use it as an additive to different products. Yes. And, and that generally has been the marketplace in the blade recycling area for- Going on 20 years now probably Yes Until now. And that’s where Everpoint has really changed the game because you’re thinking about blade recycling a completely different way. James Timmins: Correct. So my background is oil and gas. I was a drilling engineer, uh, for major oil companies, so it was my job to plan, execute, and oversee drilling operations. So I worked kind of all over the world, and this project started as an icebreaker at a friend’s birthday. I had never met Tyler Goodell before. I- Wait, Allen Hall: wait, wait. So you’re at a birthday party- James Timmins: Yes … Allen Hall: and your kids are having fun. They’re eating cake. Oh, James Timmins: we were at a dive bar, so we- Oh, okay … yeah, watching a band, uh- … sitting over a bucket of Lone Stars and yeah. Allen Hall: Okay. That’s the [00:03:00] best place for new ideas to occur clearly. So you’re, you’re, you’re at a birthday event, you’re hanging out, and what happens? James Timmins: He asked me what, what I would do with tens of thousands of tons of scrap fiberglass. Allen Hall: And you get asked that every day, or is it- No. Okay. James Timmins: And I thought it was a weird question, and I kinda put it in the back of my mind. And about 15 minutes later I was like, “Well, I have an idea that we could, uh- Put at least some of that to work. Allen Hall: And what was that idea? James Timmins: The idea was that we could grind it to a specific particle size distribution and use it as a fluid loss additive in oil, gas, and geothermal drilling operations. Allen Hall: Okay. That’s a unique application. James Timmins: Yes. Allen Hall: So I think we need to walk into what happens when we’re drilling an oil well or any sort of well, I suppose. Uh, there’s unique things that happen that require specialty fluids or specially … James Timmins: Uh, specialty additives you could say. Additives. Allen Hall: Yes. [00:04:00] So- Okay. That’s a, that’s a good way to describe it. All right. So, uh, I’m drilling a well. I’m in Texas. I’m an oil tycoon. I wanna drill this well. What am I doing? James Timmins: So you have what’s called drilling mud, which is pumped down the drill string through the bit. Um, helps cool the bit, um, power down hole tools, and sweep the cuttings out, which is the- Okay … drilled up rock. Allen Hall: Yep. James Timmins: So there’s a, a hydrostatic pressure that the fluid column exerts on the formation. And if that fluid column exerts more pressure than the formation can stand, it splits open like a fracture. Allen Hall: Okay. James Timmins: In this case, an accidental fracture. Or you could have just a porous formation of, uh, low pressure. And so you have this pressure imbalance from the wellbore where the fluid wants to flow to the area of low pressure. And, uh, this mud is $300 or $400 a barrel. And if you’re- Whoa … losing 100 barrels an hour, the costs add up really quick. Can’t drill ahead. Um, it’s what’s called non-productive time. [00:05:00] So you’re spending 80 or $100,000 a day for all this equipment to be out there, and you’re not drilling ahead, so. Allen Hall: Okay. So as the, the drill bit goes down into the formation, you’re hitting rock. You hit a crack in a rock, or you create a crack in a rock. All your drilling mud, and it’s not really mud, right? No, it’s- It’s, it’s a special compound- <p class="...
Transcribe →Vineyard Wind Battles GE Vernova, UK Funds Blade Innovation
3w ago00:28:33Tap to summarizeWeather Guard Lightning Tech Vineyard Wind Battles GE Vernova, UK Funds Blade Innovation Fraunhofer studies uptower carbon blade repairs, Vineyard Wind’s fight with GE Vernova deepens, the UK backs offshore innovation, and a 26-year Horns Rev study tracks how birds adapt to turbines. 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! The Uptime Wind Energy Podcast, brought to you by StrikeTape. Protecting thousands of wind turbines from lightning damage worldwide. Visit striketape.com. And now your hosts. Allen Hall: Welcome to the Uptime Wind Energy podcast. I’m your host, Allen Hall. I’m here with Rosemary Barnes, Yolanda Padron, and Matthew Stead. Fraunhofer has published peer-reviewed feasibility research in wind energy science. And Rosemary, I don’t know if you read wind energy science, but there’s a lot of good information there about wind turbines and mechanical aspects. Not much on the electrical side, but a lot about mechanical. Uh, in, in, in wind energy science, uh, they had a discussion or an article about repairing damaged pultruded CFRP spar cap planks while the blade stays on the turbine. Using finite element analysis on a 81.6-meter [00:01:00] blade from a seven-megawatt offshore turbine, the researchers found that a shear web window cut out as short as one meter drops buckling resistance from 20.7 times critical load to four times critical load, a reduction of over 80%. The fix? Temporary external clamping frames with a pre-tensioned span-wise rod to carry gravity loads, combined with internal push rod assemblies and external stringers profiles to restore buckling resistance, all installed and removed uptower. Wow. I know we’ve discussed the carbon pultrusion repair situation and how critical that is or h- how difficult it is. I didn’t realize it was that difficult, Rosemary, that if you actually try to replace a one-meter section of a carbon pultrusion, you’re re- reducing the, the, what, the, the buckling resistance by 80%? [00:02:00] Holy moly. Rosemary Barnes: I don’t think that’s even 100% pultrusion specific, right? They’re talking about cutting a, a window in the shear web. Allen Hall: Yes. Rosemary Barnes: So that could be for any kind of repair you might have to do that, including if you need to repair, like sometimes you need to repair the, the shear web. Um, and even though, like, they’re not doing a lot of heavy lifting, um, that’s kind of a structural pun, um, they’re still super important. If they’re not there, then you’re gonna have big problems pretty immediately. The way that it works with repairs is that there’s certain kinds of damage that you know that you can just do uptower. The technicians know they can do it. They don’t need to call an engineer. The engineer doesn’t call- need to call the expert engineer. But when you need to do something a bit unusual, like a whole meter of web removed, then you’re gonna need to get an engineer to, um, dial in the, y- the, to rerun the design codes basically, um, but with this weak structure now to see is this okay and is it okay, you know, uh, [00:03:00] obviously a turbine that is just, um, idle or it’s not even idle, it’s just fixed in place while they’re repairing it, that has different loads on it to one that’s operating. So, you know, they’ll run that and make sure that it’s safe, um, before they do the repair. So what I really like about Fraunhofer is that they in some ways, like- Maybe it’s not cutting-edge science or engineering because they are largely repeating what is already well known in industry. But the problem is that industry doesn’t tell everybody else. And so it is, like, such a vital role to then go and illustrate, um, to everybody else what, what’s happening in industry. And they, they are… Like, there is this problem with wind energy where academia and industry are not, um, talking too much, and a lot of the academic stuff just doesn’t relate at all to what’s happening in the industry. But Fraunhofer do, like, 90, 90% of the time seem to get it at pretty right. Allen Hall: When a carbon protrusion is [00:04:00] used, that really localizes where the load is versus in, in some of the more fiberglass designs that I’ve seen, the shell is actually taking some of the load. It’s not all in the shear web, so to speak. So doesn’t that sort of focus the loads into one location a little bit more when you move to carbon? Isn’t that the point? Rosemary Barnes: Yeah. Well, the carbon fiber is, is a lot, lot, lot stiffer than, um, fiberglass, and it’s, it’s a lot stronger. So yeah, you are designing… I, I mean, always the spar caps have been the main load carriers, the, um, you know, the main laminate, the bit between the shear webs or over the shear webs. Um, but it’s, yeah, it probably is, um uh, e- exacerbated or the increased effect when you add carbon fiber. But the, the thing about carbon fiber is it’s so susceptible to small damages or small deviations, so like a tiny little bit of fiber waviness, like if your fibers aren’t perfectly straight, then you can easily get a, a crack. And [00:05:00] carbon fiber can also be a lot less forgiving than fiberglass. It is not uncommon that it will just break, and you didn’t even know there was anything wrong. So that damage intolerance is what led to people moving away from carbon fiber fabric and into pultrusions, because they’re made with perfectly straight fibers. Um, but it, it raises some, uh, problems of its own because y- yeah, like how do you repair that? You can’t, um, you can’t get the fibers as straight again unless you repair a whole plank, um, because like they look like, like two-by-fours or something. You know, like they look like little fence palings, basically. Black, black fence palings. Um, and so yeah, you, you’d have to repair, replace a whole one, and then you’ve got like a big chunk of structure that’s missing there, so that’s pretty hard to do uptower. I, I don’t know anybody that does those uptower, actually. Um, m- maybe they can now with this reinforcement method, but I would still not enjoy being in a blade that was missing a, a [00:06:00] pultrusion and up in the air. Allen Hall: The offshore versus onshore equation, it, it would make more sense onshore to actually drop the blade, I assume. Offshore adds difficulty, but it sounds like with all the rigging a- and assembly that you would have to do offshore, it, it probably is gonna be close in terms of total cost to do an uptower repair versus a downtower repair I would think. It, it– Wouldn’t you think it’d be roughly right? Rosemary Barnes: Yeah, like in, in offshore, there’s always more motivation to do complicated, um, expe-expensive uh, things that will save you from having to do something even more expensive, like bringing, um, a whole blade back. Uh, yeah, going out, getting the vessel with the crane, bringing the blade down, and taking it in is just incredibly expensive. So you can spend a lot of time faffing around reinforcing a blade uptower before you, um, you know, would come o...
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