Weather Guard Lightning Tech
Why Two-Piece Blades Create Massive Engineering Problems
Register for the next SkySpecs Webinar! We discuss China’s new 20MW floating turbine by CRRC, and Nordex’s patent application for modular blade assembly. Plus HeliService USA’s offshore ambulance service and the recent construction delays at Atlantic Shores and Vineyard Wind.
Sign up now for Uptime Tech News, our weekly email update 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 Facebook, YouTube, Twitter, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary Barnes’ YouTube channel here. Have a question we can answer on the show? Email us!
Allen Hall: Our next SkySpecs webinar, if you missed the last one, about lightning protection and how to use SkySpecs, drone imaging and data, and the EOLOGIX-PING Lightning sensor to help yourself on the lightning side. You can actually watch that on the SkySpecs. Just go to SkySpecs and you can see that webinar.
It’s free. All this stuff is free. It’s all great stuff. All you need to do is register. You can get all this information. The next one is coming up on June 25th, 11:00 AM Eastern Time. And this next, webinar is gonna have Liam McGrath from RWE, who’s a blade engineer there, and Tom Brady from SkySpecs, who handles all the cool drone technologies.
So if you haven’t met Tom, you need to go to this webinar and find out what’s going on. And Michael McQueenie from SkySpecs. It’s the rule. Subject is when should you be scheduling your drone inspections and you shouldn’t be doing it in the spring. That’s really important. If you wanna save some money on your operational aspects, your [00:01:00] o and m budget, you need to be thinking about how to get your inspections done, when to get your inspections done, and what tools are available to you at different times a year.
So there’s optimal times to get your drones inspected and there’s suboptimal times. Suboptimal times is like March. Don’t do it, then do it the previous fall. and so Joel will be there. I will be there. Don’t miss it. It is June 25th. 11:00 AM and you can sign up in the show notes below.
Speaker 2: You’re listening to the Uptime Wind Energy Podcast, brought to you by build turbines.com.
Learn, train, and be a part of the Clean Energy Revolution. Visit build turbines.com today. Now, here’s your hosts. Alan Hall, Joel Saxon, Phil Totaro, and Rosemary Barnes.
Allen Hall: Welcome to the Uptime Wind Energy Podcast. I have Joel Saxo along and Rosemary Barnes from Australia and I’ve. Just been digging through all the news over the last several days.
Really disappointing news to the United States, but over [00:02:00] in China. TRRC has unveiled a 20 megawatt floating wind turbine, and it’s, has a rotor diameter of 260 meters, which is not really outrageous. The CRRC press release, which is a little outrageous, let, me read you some of this, and it’s called The Key Hung.
wind turbine, the key Hung, integrates multiple innovative control technologies offering four core advantages. High intelligence system, modularization, full chain collaboration. And Joel, don’t we all want that? And exceptional stability. It incorporates various intelligent controls, sensing and detection technologies that design further enhances the unit’s flexibility and efficiency by modularizing key system interfaces and structural components.
So there are a lot of words in this press release, but they don’t say, actually say anything at all. So that’s why we have Rosemary here to suss
Joel Saxum: out.
Allen Hall: What is happening with CRRC and a [00:03:00] 20 megawatt floating turbine? Is it really needed, Rosemary?
Rosemary Barnes: Yeah, I think I’ve made my thoughts clear about the, like bigger, kind of pursuit of, offshore wind turbines.
And I think that a lot of it is about prestige to be the, first with the biggest. and so I guess that this is the, first with the biggest, floating offshore wind turbine. I, yeah, I don’t think that we’re really ready for, that with floating offshore wind. Floating offshore wind is still in the period where we’re trying to figure out what are the really important design requirements.
How are we gonna deal with some special, issues that floating offshore wind finds. So if you combine all of that with floating offshore wind, or there’s all the, like the, yeah, the floating platform, the mooring mechanisms, control systems, any weird aerodynamics that are happening because of slight tilting or whatever.
There’s all that sort of stuff. It’s still being, learned about. [00:04:00] And at the same time, you’re gonna combine that with all of the really huge blade, really huge turbine problems. I, think that. It’s a little bit crazy if this is intended as, being a commercial offering, it’s probably not, it’s probably a learning exercise and a publicity exercise more than that.
And, maybe from that point of view, like if you go into it trying to learn everything that you can about what would happen if we, eventually go this big, then I guess that there’s some value in that. but yeah, I, don’t think that we’re ready for, just rolling out thousands of these off the end of a production line.
Joel Saxum: Yeah, if you, I’m of course not an expert in Chinese maritime, GE geology. Sorry. But, there’s not a whole lot of super deep water right off of the Chinese coast. The Chinese coast is all 200 meters, like in every place that you’d put like a max step in every place that you’d put a wind turbine.
So if this was to be built for a, a [00:05:00] larger. Rollout. Where is it to sell to? Brazil? Oh, Brazil. Sure. Brazil. That would make sense. That could be right. but I don’t think, like if, China has very ambitious wind goals. And of course if you watch the. Any kind of news, you can see them rolling out large wind farms, left and right, onshore, offshore, all kinds of stuff.
But I don’t think they actually need the floating technology to be honest with you. So it might just be a show of force.
Rosemary Barnes: And also depths of 200 meters, that is challenging or maybe that’s, I think that exceeds the current, maximum depth of fixed bottom, you could get there, but it, uses heaps of steel, the fixed, bottom, Yeah, design compared to what we assume that floating is gonna eventually achieve it. It should use less steel. But it’s funny because that’s one constraint that probably China of all countries doesn’t really have because they have this, like glut of, steel in China or they’re winding down with their, their construction.
[00:06:00] industry. So they have an oversupply of steel. a lot of countries are experiencing China, selling their steel, into those countries at really cheap prices as tariffs around the, world, not, just from the us. and in fact, the US tariffs on Chinese steel predate the Trump administration.
yeah, I, think that. Steel is one thing that China doesn’t have a huge short supply of. I would agree with you that this probably isn’t primarily aimed at their own domestic market. It’s probably more to do with the fact that China has dominance in, every, or at least nearly every energy technology at the moment.
And looking forward if floating offshore wind is gonna grow, then they probably wanna maintain, wanna be dominant in that as well. But I think the main markets that you see talked about for floating offshore wind, yeah, South Korea and Japan, some other, places around that area where they don’t [00:07:00] have a lot of good, renewable resources they can exploit.
And then there’s quite a lot of interest in Europe as well, probably as much because they’re just, really aggressive with their, renewable plans in general.
Joel Saxum: Just to highlight the difference between Western countries and how China operates. One of the things they brag about in this press release is the fact that CRCC, the China Railway Construction Corporation, that single entity is saying, we have a complete wind power equipment supply chain, as in we don’t need anybody else.
We’ve got it all solved ourself, and that’s. Very unique ’cause you’re just simply not gonna have that el elsewhere in the world. now can they execute on that? I don’t know. But it’s an interesting, it’s an interesting take
Allen Hall: and talking of offshore, if you haven’t received your latest PES Wind Magazine, the new edition is out and on the cover is hella service, USA, talking about their ambulance service that they’re offering on the east [00:08:00]coast of the United States.
And we were up there a couple of months ago when we met with everybody. Michael to Paul Russo, Dr. Kenneth Williams, who was with Brown University and had done all their ambulance work there. And obviously Sophie Crane. If you don’t know Sophie, you’re missing out. She’s, she’s really good, with, hella service USA, but they’re offering an ambulance service.
And the thing that Joel, that blew our mind when we were there, and if you can read about it in the article, it says there’s essentially two helicopters that service. The northeast of the United States from the US Coast Guard. So if you flip over your kayak in the ocean, rosemary off the, the coast, New Jersey, it may be a while, it may be several hours where someone can, help you and the US Coast Guard is just gonna pick up your carcass and take it and leave it at the front door of the hospital.
They are not skilled to provide any role paramedic services at all [00:09:00]besides just first aid care. but hella service USA is, it’s a completely different model and it’s, it is still shocking. At Rosemary, we were talking about. Australia, how those helicopters everywhere off the coast of Australia.
Rosemary Barnes: Yeah. any nice day when you could be at the beach in any part of the country, even where I go is the South coast and a lot of people there.
and yeah, you see a helicopter patrolling up and down, checking for any really big sharks, approaching groups of, big groups of people. So definitely we’ve got more than one helicopter for our entire coastline. yeah, it’s, interesting.
Joel Saxum: I think it’s just crazy. Like it’s not something you would think about from, just a general public safety thing.
and or an industrial safety thing, right? Because there’s a whole, there’s a, there’s other stuff going on in the water out there that could be used as okay, I’m gonna switch gears. We’ll go down to the Gulf Coast, F Port Fon out in hoa, [00:10:00]down in Brownsville. Like all of those places that the oil and gas industry has invested in these resources, Boom, that’s there, right? that’s not a problem. it’s a minute phone call. the, it is, however, 180 miles an hour from three minutes from the phone call, you’re gonna be there. And it’s amazing that I would like, I guess I’d like to see the, same thing on the West coast.
What is California, Washington, Oregon, what does their resources look like? ’cause it, just doesn’t make sense to me.
Rosemary Barnes: Yeah, I know. We send, helicopters over to help with bush fires when you have them as well. But I don’t think that’s the same kind of helicopter because we have special ones that can carry heaps of water and then dump just a, whole, bunch of water on a, fire at once.
Joel Saxum: Like you said, the US Coast Guard, they have what’s their specialty bird called? Allen, the Dolphin. They have those, but yeah, they’re not there to be the world’s paramedic. They’re there for search and rescue.
Allen Hall: Yeah. And when we talked about it with, HEA service USA, it isn’t [00:11:00] the technicians and, my thought was a technician would have a broken limb or something really serious.
It could be as simple as appendicitis or an allergic reaction. Peanuts, a peanut allergy where time matters. And before hella service offered this ambulance service, you could end up taking a CTV and it would take a long time for some of these wind farms to get back. To true, healthcare that can really save your life.
So hea service USA is doing a tremendous job on the East coast and elsewhere. They’re expanding their reach as it seems. if you are, new to PS Wind, you need to download a copy of PS Wind, and you can do it@pswind.com. This issue is full of good information. You need to be reading it if you’re going to stay up.
Abreast of what’s happening in wind, you need to be reading PES. Wind.
Joel Saxum: As Busy Wind Energy Professionals. Staying informed is crucial and let’s face it difficult. [00:12:00] That’s why the Uptime podcast recommends PES Wind Magazine. PES Wind offers a diverse range of in-depth articles and expert insights that dive into the most pressing issues facing our energy future.
Whether you’re an industry veteran or new to wind, PES Wind has the high quality content you need. Don’t miss out. Visit PS wind.com today.
Allen Hall: some more bad news for us. Offshore wind is Atlantic Shores, which is a partnership between Shell and EDF renewables. North America has filed to cancel its 1.5 gigawatt offshore wind.
Project off the coast of New Jersey near Atlantic City, the company cited economic challenges including inflation, supply chain disruptions, and the administration’s federal permitting freeze as a primary reasons. Remember, a couple of months ago, the Environmental Protection Agency pulled the project’s air permit, and we talked about that on the podcast.
but it looks like some of these problems are insurmountable, so Shell and [00:13:00] EDF are going to pull the plug. Pulling the plug. Now, Joel doesn’t mean a permanent withdrawal, it just, I think it just means they’re on hold. I’m not a hundred percent sure on that. You still own the lease spot, right? So you still own the plot of ocean.
Joel Saxum: But if you’re going to the, basically the interconnect and saying no, we’re done here. I don’t know. They’re not gonna make it easy to, try to reopen that program. I know EDF laid off a bunch of their offshore people in shell’s, all but closed up their offshore arm. So I don’t see, I can see what, I’ll see if this is my take.
I see Shell and EDF trying to sell this thing, this the lease rights. I don’t know to who, but they’re, gonna take pennies on the dollar for it. But to get something out of it. If
Allen Hall: you think if they waited four years, they have an opportunity to sell it.
Joel Saxum: Maybe the best we’re gonna get is a, maybe. Is that lease, 20?
Is that lease 25 years? What is that lease? Oh, I would assume it’s longer than 25 years. It’d have to [00:14:00] be, but there should be a staged toed construction and then after construction, usually on a federal lease. So I don’t know how long those rights last
Allen Hall: are. Are they still, I guess if they didn’t cancel it, would they still be paying monthly payments to the federal government?
That’s a great question.
Joel Saxum: Or did they pay that in a lump sum?
Allen Hall: yeah. I thought the way the process worked is that they were, they paid the lump sum for the lease, the ability to have a lease, but the lease payments had to be made. And then when the construction started, that ramped up the price of the lease.
Isn’t that how it was laid
Joel Saxum: out? So you get five years and then 25 more. So you have a total of
Allen Hall: 30 years of that spot. So the average tri in life is 20 years. So you still have a couple years to play around here. Maybe that’s what they’re doing.
Joel Saxum: So it says the le the lessee has a period for site assessment, construction and operational planning, and then an operational term of [00:15:00] 25 years.
The initial site assessment period is typically five years, and the lessee must submit progress reports every six months. During this time, after the construction and operations plan is approved, the lessee has an operational term of 25 years.
Allen Hall: So what are our next steps, Joel? Do you think that, It just sits.
Joel Saxum: I think it’s gonna sit, I think it’s gonna sit, it’s gonna sit empty and naked and it’s gonna be a sore spot. there’s, there wasn’t anything out there before. But either way, it’s, economic opportunity that’s on the shelf. I. That’s really sad, right? There’s a lot of jobs from that.
if you went and we went back, if we go back and look at all the things when offshore windows coming, how excited along the East coast, all these governments and agencies and people got about all the jobs coming in, all the economic, stability coming in. All this money that the, supply chain companies that sprout it up and or built facilities or expanding facilities for.
Everything from steel to transport, logistics. [00:16:00] and now it’s just kind of me that’s not a very good American story.
Allen Hall: So moving north a little bit to vineyard wind, vineyard wind has extended its lease of the new Bedford Marine Commerce terminal through June, 2026, suggesting construction delays beyond the original.
2024 Now, 2025 completion date. The, project currently has four turbines sending power to Massachusetts out of the plan, 62 turbines at least, roughly 25 more bar trips are needed to complete construction, not counting the potential trips to remove, blades from, the Canadian factory. The, project has obviously faced some additional challenges lately, but I think.
GE was really hoping to finish that project, I thought this year, but it looks like it’s gonna roll in at least in, at least to early 2026. It’d be my guess. But if they [00:17:00] plan it out to June of 2026, like the, winter months in Massachusetts, south coast of Massachusetts are terrible. so I guess it gives them a couple more, more months to, to clean up at the end, right?
Joel Saxum: Yeah, absolutely. this is a big project, right? And any large capital project is gonna have delays. The delays for this thing have been very public, right? We know when they had stop works, go on up there, we know when they had some blade issues. and then of course having to dismount some blades, send them over to France, I believe it was to get fixed, send back.
yeah. if you follow offshore wind, almost every large project, every offshore wind project has delays, right? They’re usually never on schedule. it’s pretty rare and it’s just the nature of the marine operating environment. Oil and gas projects are the same way. You might, you can get a thing in there, ah, we’ll plan for, 20% weather and then all of a sudden you get two weeks straight of winds where it’s [00:18:00] blowing up the, heat we call, call the heave height, blowing up the waves too high.
You can’t operate. And it is as simple as that. Anybody that works in wind, even onshore, knows that, right? You can have a crane sitting on site for two weeks where you’re sitting there with twiddling your thumbs underneath the crane. ’cause, as soon as eight and a half meters per second of 10 minute average wind speed blows up.
You can’t move the dang thing. and you’re just stuck. So these things happen. They’re looking forward, 2026, so we should be done. Then
Allen Hall: the positive note is that they didn’t shut down the effort early, right? They would say they were gonna abandon it. They’re not gonna abandon it, they’re gonna complete it, which is great.
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Visit eLog [00:19:00] ping.com and take control of your turbine’s health today. I was perusing the patent application database from the US Patent and Trademark Office. And honestly, who doesn’t do that in their spare time. And I noticed that there was a patent application, and that’s where all the cool technology is.
Don’t look for patents, look for patent applications, because that’s the latest and greatest. but there was a patent application from Nordics. For a modular blade assembly system, IEA two piece blade. And this approach, is a little bit different than what we’ve seen on the LM side for a two piece blade.
The LM design is a hole and a pin approach to connecting two pieces together. So it’s a relatively simple system that, that LM pursued. And I don’t wanna speak for Rosie, but I think Rosie thought. Do I really need it? is, wasn’t that the sort of summary of what the LM two piece blade output was?
Rosemary Barnes: Two piece [00:20:00] blades in general? it, it sounds like a very appealing thing because blades are very long, they’re hard to transport. They often require, road closures and choosing route carefully to make sure that you don’t have to, go around any tight corners or anything like that. So it sounds very appealing, but they’re inherently very challenging because.
the, a wind turbine blade is basically like a cantilever beam, and they use composite materials which rely like they’re very strong and stiff for their weight because they’ve got these long fibers and loads are transmitted along in the direction of those fibers. Yeah. So if you make a two piece blade, you necessarily cut, those, all those fibers in half in one, in one place.
so that’s challenging. And then if you try and look for, solutions to that. You want to, you need to be able to make the joint strong enough, but not add so much extra weight. And basically the way that a wind turbine blade is loaded, [00:21:00] it’s quite lightly loaded towards the tip. But then as you get to the root, all of the The moment forces from, the, the outboard section of the blade, they add up. So the biggest loads are at the root of the blade. So basically, if you wanna make your structural problem easier with a two piece blade, you’ll split it close to the tip. But then what’s the point in that? what you would obviously want to do is split it in the middle or thereabouts.
But that means, huge loads have to be transmitted through your pin joint, or whatever kind of joint that you had. And so it’s just inherently very challenging to do that.
Allen Hall: And that’s where the Nordic patent application, takes a different approach than what LM did. They basically have a sleeve design and a bolted design.
A hydraulics are used to pretension this joint. The images are a little unclear to me as an electrical engineer having [00:22:00] never built a two piece blade, but it does sound like they’re trying to address certain, mechanical loads in different ways. So like the, sleeve assembly is there, to react to the bending moments, and then the actual loads are handed through this threaded connection.
And then the pretension gets rid of any sort of fatigue problem, so they preload it. It’s a different approach, but the, I think the, cost benefit, at least from the application, says it will reduce transportation costs from roughly a hundred k, per blade to about 40,000 because you can put on a, basically a standard truck and, move them around, which is always the.
The emphasis on these two piece are now three piece. I guess it could be three pieces, blades from a application standpoint. Rosemary, this is a mechanical joint. It would seem like a lot of mechanical joints have been dealt with, but maybe it’s because it’s such a large [00:23:00] composite structure, this particular kind of mechanical joint have never been conceived of.
Is this something that, that, you have seen before, but it has been set aside for other reasons? Cost reasons.
Rosemary Barnes: Yeah, I haven’t seen something exactly like this one. If you look at the sketches in the patent application, then you do see a lot of details that are trying to spread loads over a, a wider distance.
So it’s not trying to have, just this one narrow joint where all of the loads need to be transferred. However, there you are adding a whole lot of extra components to, a wind turbine blade and. it is really, it’s very challenging because they’ve got, millions and millions of fatigue cycles that these, blades have to deal with.
really high strain compared to any other kind of, structural component in a, different industry, a different application like this. This is really the hardest, the hardest example of, those kinds of [00:24:00] loading conditions. So it’s still, you’re still definitely going to be, either reducing fatigue performance or adding a, weight penalty and probably both.
so I, yeah, I, doubt that it’s a, perfect solution. Obviously they’ll develop as far as they can. It’s also worth noting that, so they can put it on a normal truck for, what is this, for three megawatt. Roughly turbines. Yeah, it, the blade length isn’t the only thing making transport of blades expensive.
So as you get much bigger than three megawatts, then you start to get a quite a large root diameter. And that is also a, constraint. You then you need to worry about getting under bridges and stuff like that. So it’s not the. It’s not the only thing, and it’s not gonna be like, oh, now we can transport 12 megawatt blades with 12 megawatt turbines on shore easily.
it’s definitely not gonna be that. So
Joel Saxum: are you talking about this root diameter [00:25:00] thing from the latest, Australian newspaper article? We saw
Rosemary Barnes: the one, I think there was a turbine, a tower segment. that got stuck under,
Joel Saxum: stuck under a bridge, I thought. Was that a tower segment? I thought it was the, for some reason I thought it was the root end.
Rosemary Barnes: The report reporting was terrible. it, like it and mentioned you just need to look at it to be like, oh, there’s a door on there. Okay. Yeah, it’s a, tower segment. and probably the bottom one. Yeah. And I, back to the split blade thing and whether it’s worth it, I guess that’s the thing, like it’s a solution to a problem.
Is the problem severe enough that the difficult solution is worth it? That I think is extremely debatable. So in the end, I think with the GE split Blade Cyprus, I don’t think that they sold any additional projects that they wouldn’t have been able to sell without this, split blade. That’s the word on the street.
if it’s true that you can reduce the transport cost by that much, then that would be very interesting. But I personally wouldn’t be rushing to be one of the first [00:26:00] people to get this blade because there’s so, much that can go wrong with it. And it is. Not possible to test, act absolutely every, little quirk of the operating environment.
You, you can’t test that all in the lab adequately to be totally sure that the first ones out in the field are gonna. Be reliable. yeah, I would wanna see, I would wanna be, like turbine 1000 after a few years experience before I, put, placed an order for my own wind farm, I think.
Joel Saxum: Yeah. One of the things that we saw with that existing two place, two piece model out in the field right now, the Cyprus, is that, there’s a couple of things, right?
There’s, the seal hasn’t been sealed quite right, but a lot of it boils down to. The technicians in the field that are putting these things together like they’re Desi, that joint was designed to be put together by high-end engineers in a factory.
Rosemary Barnes: It’s not their, it wasn’t their intention. Certainly everybody knows that you’re not gonna send an engineer around for every single blade that’s gonna be put [00:27:00] together,
Joel Saxum: but they, I’ve talked firsthand at people that are installing ’em in the field and they’re like.
We don’t really know how to put these things together. We’re just doing it.
Rosemary Barnes: Yeah, it wasn’t an easy, and that term poke yoke, it’s supposed to be poke yoke, that there’s only one way that you can install it. there’s no chance to get it wrong and it didn’t quite achieve that.
and I would suggest that. Yeah, looking at the, complexity in the design in these patents, I don’t think that’s gonna be totally straightforward to, install and, maintain and monitor. ’cause you shouldn’t have to monitor, your, blade to know, oh yeah, these. pins shaking loose and it’s gonna fall apart.
are you getting up there on rope every single year or six months to check the talk? that’s, really, you’re gonna burn through your transportation saving pretty quickly. But, if you have to get extra rope access inspections every year, so yeah, I think interesting.
I’m actually [00:28:00] not, sure if we’re ever going to see the split blade thing fulfill its potential. ’cause I do think that there’s other solutions to. To the transport issue. we already have them, right? They, cost a little bit more. But then, like I, I could imagine more likely that we’re gonna see, on, on site, manufacturing of blades or, thermoplastic blades that get welded together on site.
Or like I, I can see. Other things. Alan’s making airplane wing motions, big airplanes. No way. Come on.
Joel Saxum: Okay, so this week for the Wind Farm of the Week, I may or not, I may, I am gonna get some words wrong here because we’re taking a trip over to the Netherlands. This conversation started with a friend of mine, a friend of the show, Lars Benson, up in Canada, and we were talking about offshore wind in the Great Lakes.
Why not? There’s great wind resource. There is a need for renewable energy in places that can’t get a lot of renewable energies. Say like up [00:29:00] in Lake Superior for Wisconsin, the Univer or the Upper Peninsula of Michigan and other things like that. So we were talking about fresh water, wind farms. Is there any in the world?
What are the challenges they have? Turns out Wind Park Free Salon is the largest freshwater offshore wind farm in the world, and it’s in the Netherlands. so yeah, and it actually has over 380 megawatts in size. I didn’t know this. I didn’t, think any of ’em existed. There’s 89 Siemens Cesa, SWT Direct Drive, one 30 turbine.
So they’re 4.3 megawatts a piece, and they’ve laid ’em out in a hexagonal kind of shape. And this was to ease the, view of the eye and some other things for, the local considerations. And they dove in headfirst, local considerations. They did all kinds of things to make this a. A joint effort between the community and the developers.
one of the cool things they did was a lot of local sourcing local welding firms for making steel platforms, that [00:30:00] brought in other people that will have work for the lifetime of the wind farm, which is great. 720,000 euro per year for 20 years. Environmental fund that’s gonna be built by this wind farm.
another really cool one, a citizen investment. so the Province of Free Salon offered bonds to residents enabling them financial participation in the wind farm, so you could invest in it and take dividends from the wind farm as it produces energy, which I think is a really cool concept. but this one I think is one of the, one of the neatest ones ’cause I haven’t heard of this yet.
despite the initial fears of a tourism decline, the Wind farm has introduced new activities like the Windmill Cup. Which is an annual sailing race through the turbines organized by a local water sport association. Really? Yeah. I didn’t, never heard of any of this. Over in the Netherlands.
Congrats to our friends there for the, largest fresh water offshore wind farm in the world. And we hope we can draw on that over [00:31:00] here in the States. So for the Wind Farm of the Week, wind Park Free salon over from the Netherlands.
Allen Hall: Wow, that’s amazing. Thanks Lars for that tip. That’s really cool. that, that’s gonna do it for this week’s uptime Wind energy podcast.
Rosemary will be back next week, Joel. Are you coming back next week or? I
Joel Saxum: believe so,
Allen Hall: yeah. we’d love to have you. it’s an open invite. You can come and go as you wish, and we’ll see everybody here back next week. and thanks to all the listeners and everybody on YouTube. Our, listenership is just exploding and we appreciate everybody who’s listening and we’re trying to bring you all the latest news and technology around wind industry.
Around the wind industry and we appreciate everybody contributing and sending us notes, including Derek Rutherford. So thanks Derek, for sending us a couple notes here about what’s happening in wind and we’ll see you here. Next week on the Uptime Wind Energy [00:32:00] Podcast.
https://weatherguardwind.com/two-piece-blades/
Renewable Energy
ACORE Statement on New Framework Introduced for Permitting Reform by the House Problem Solvers Caucus
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Siting & Permitting Reform -
Press Releases
ACORE Statement on New Framework Introduced for Permitting Reform by the House Problem Solvers Caucus
Statement from Ray Long, American Council on Renewable Energy (ACORE) CEO on the new framework introduced for permitting reform by the House Problem Solvers Caucus:
“We’re heartened to see the new framework for permitting reform from the House Problem Solvers Caucus and eager to expand conversations around transmission. The reality is, the U.S. needs to add the equivalent of 133 Oklahoma Cities’ worth of electricity to the system by 2030 if we’re going to achieve energy dominance and remain competitive globally. Cutting red tape to expedite the buildout of critical transmission lines, while also promoting grid-enhancing technologies and other common-sense reforms, will ensure we have a modern grid that keeps the lights on and withstands future challenges, like extreme weather events and rapid increases in electricity demand. We look forward to continued conversations about permitting reforms that will get more electrons generated and transmitted to the American communities, businesses, and families that need them.”
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ABOUT ACORE
For over 20 years, the American Council on Renewable Energy (ACORE) has been the nation’s leading voice on the issues most essential to clean energy expansion. ACORE unites finance, policy, and technology to accelerate the transition to a clean energy economy. For more information, please visit http://www.acore.org.
Media Contacts:
Stephanie Genco
Senior Vice President, Communications
American Council on Renewable Energy
communications@acore.org
The post ACORE Statement on New Framework Introduced for Permitting Reform by the House Problem Solvers Caucus appeared first on ACORE.
https://acore.org/news/acore-statement-on-new-framework-introduced-for-permitting-reform-by-the-house-problem-solvers-caucus/
Renewable Energy
How Many Americans Are “Pro-Assassination?”
A reader “Tim” sent me meme here.
Thanks, Tim, but let me ask you this: Of all U.S. voters who are registered with a certain party, a clear majority, 54%, 44.1 million, are Democrats. How many of these people could honestly be said to be “pro-assassination?” 11? 85? Obviously, I don’t know, but no decent person is in favor of political violence.
What a remarkably asinine claim to make.
Renewable Energy
We4Ce & CNC Onsite’s Re-FIT Blade Root Repair Goes Global
We4Ce & CNC Onsite’s Re-FIT Blade Root Repair Goes Global
Edo Kuipers from We4Ce and Søren Kellenberger from CNC Onsite discuss their Re-FIT blade root repair solution, which has been successfully implemented at a wind farm in Southeast Asia. The solution allows operators to keep blades onsite while repairing critical blade root bushing failures.
Sign up now for Uptime Tech News, our weekly email update 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 Facebook, YouTube, Twitter, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary Barnes’ 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: Ed0o and Soren, welcome to the program.
Edo Kuipers: Thank you very much.
Thank you both.
Allen Hall: We have some really exciting news from you, from the field, but first I, I want to start with the problem, which. A lot of operators have right now, which is this blade root, bushing it in or insert issue, which is really critical to blades and you’re the creator of the device that’s gonna save a lot of blades.
You want to talk about what happens? When these blade root bushings fail?
Edo Kuipers: Uh, yeah. What we have seen is that it especially concerns, um, uh, polyester type of blades. And what we see is that, um, bushings and, and, and composites, they are not attached to each other anymore. And after a [00:01:00] while, blades are simply flying off.
That’s the, that’s the whole, that’s the whole problem. Of course. And now going back to the root cause, the root cause here is we are working with, with foes and. The fact is that if you’re working with polyesters, they already have, um, at the, uh, uh, during the process, the curing process, they have already curing shrinkages.
So we have already curing shrinkages, which means we have already initial micro flagging going on, on the interface between the bushing and, and, and, and the limited around it. And that reduces, that reduces the um, surface. Carrying area. And by doing so, because we have less area, surface area that can transfer the loads from the hub, um, from the blades to the hub, eh, we have limited amount of, of years on running.
So we are reducing, uh, the, the amount of years [00:02:00] that the blades are on the, on the, on the turbine safely.
Joel Saxum: This problem is compounding right now simply because there’s a lot of the global wind turbine fleet that’s starting to age. Right. Like we, we, we went through a big push in, you know, the early two thousands, 2000 tens, 2000 twenties to now where, you know, if you look at the country of Spain, we hear that regularly, Alan is, Hey, we’re getting to the end of life.
We’re close to the end of life. Then there’s people saying, what is the remaining useful life? Where are we at? Um, and this is one of those issues where. It can develop rapidly, right? So if there’s an issue, you can, if you catch it in time, great. You’re good. But it can develop rapidly and that can lead to catastrophic losses.
But I guess my, one of the questions I want to ask you, and you guys of course have done some commercial here. Uh, how many turbines do you think are affected by this globally affected by this root bushing issues?
Edo Kuipers: Oh, that’s a good one. If I, if I talk a number of blades at the moment, we are more or less at a ball point figure about 30, [00:03:00] 40,000.
Blades. Wow. Worldwide. So we see many us, we see many in South America and we see also in Southeast Asia, like India. And those blades are running, let’s say from 10 years, 12 years, and some of them also after six years,
Allen Hall: and a lot of manufacturing. Uh, blades happens in multiple sites, right? So if you have a particular OEM wind turbine, you may have a variety of different blades on your site.
You typically do. Some of them are polyesters, some of them may be epoxy, but it’s the polyester ones we need to pay attention to first, right?
Edo Kuipers: Correct. The one we are, uh, concentrating on with our solution are dealing with polyester blades because there we see the problem, especially in the, in the interface layer.
There are also root problems with epoxy types, but they are from a, from a different level.
Allen Hall: So the thing that we’re looking for when we start to see [00:04:00]the problem, so if I’m an operator and I have technicians out in the field and they’re looking at blades from the ground, typically very quickly, what are the first signs that you have problems with the bushings?
Edo Kuipers: What we generally see, the first signs is that there is a cracking going on in the ceiling, which is between the blade. The pitch bearing. So if you go up tower as a surface guy, then then look for those initial cracks, and if you see cracking, cracking in that sealant, then remove the sealant just by with a knife and, and, and go with a fill gauge to see if you’re caping going on between the root lum.
Uh, so between the bushing and the, and the, and the pitch bearing,
Allen Hall: so that sealant or gasket between the blade and the pitch bearing shouldn’t be moving or shouldn’t have flexed it. It shouldn’t have broken. It can flex. It’s made to flex a little bit, but if it breaks, it tells you there’s too much stress [00:05:00] on that sealant.
That’s really the first sign.
Edo Kuipers: That’s really the first sign. Then you still have time, but then you have to start monitoring
Allen Hall: and the, the monitoring is telling you what,
Edo Kuipers: once you. Notice this. What you have to do is, for example, you are positioning a leading edge, uh, under the tensile loading of the dead weight.
Then you measure a cap, then you pitch the blade, eh, that the, that, the, that the, that, that side is down. So it’s, it’s, it’s feeling a compressive loading, and then you can see if there is a difference. So what you’re doing is you’re measuring the variable cap. That’s a static gap, but the variation of the capping due to the, due to its own weight of the blade, and that is a sign that that movement is going on.
Allen Hall: So you’ll see compression versus tension, that gap get larger and smaller. There is always some movement in that gap, but it’s very limited if you, what typically is a threshold where you say. [00:06:00] If it’s beyond a couple of millimeters, that’s a problem. Where is that dimensional gap become an issue
Edo Kuipers: with our present customers?
We are saying, um, um, one millimeter and you have to hoist, uh, hoist the blade down.
Allen Hall: One millimeter is 40 thousandths of an inch. That’s not very much.
Edo Kuipers: If it’s, for example, five millimeters, I mean. It’s, it’s not, you’re in a, in a bad stage that within three months your, your blood, your blade could fly off.
And if you are in, in the range of one millimeter, the nice thing on that is that you have a limited amount of bushings, which needs to be replaced. So you are li limiting the effect of the repair.
Joel Saxum: So, but that’s the big thing here, right? So catching it early, it’s like anything in blades, we talk about this.
We’ve been, we’ve been beating this, this horse for a long time. Catch it early, fix it early, or you’re gonna be in a bad state. Because I mean, the, the, the worst thing that happens here, of course is the safety issue, loss of life or anything like that. But what? But the, [00:07:00] what We have seen blade breaks, blade comes down, hits the tower.
Then the tower comes down, then you’re replacing an entire turbine. And that’s, that’s horrible for the operator, the industry, everything in, in, in general. Um, but if you catch it early, now each blade has de, depending on the model, the make the design, um. 60 to 80 bushings. 60 to a hundred bushings. What’s that number?
Edo Kuipers: Yeah. 92 for example. Or 74 or, yeah. In that area.
Joel Saxum: Right. So, so, and when you, and when your solution is engaged, when the, you have to bring the, bring the blade down tower and then fix it if you catch it early. Are you talking, we’re fixing six of these, we’re fixing 40 of these. What does it usually look like?
Edo Kuipers: It’s, uh, in the, in the area of 24 to 30.
Joel Saxum: Okay.
Edo Kuipers: The nice thing on that, the nice thing is on that if we working with a drilling machine, we can do that in 24 hours drilling. So limited time. Limited time of, of [00:08:00] taking out the bushings. And if we would wait longer and we need to repair 60 bushings, it takes, let’s say 60 hours to, to drill out, so to lower the cost of the repair.
Because it’s like a chain reaction. Once it starts, it, it grows to lower the amount of the repair and the cost of repair, let’s, let’s not wait too long.
Allen Hall: Okay. So that’s a really good input into this discussion because I think a lot of operators assume if I have to do this repair, replace the bushings, I’m replacing a number of bushings regardless of the level of damage, because they’re gonna fail eventually.
But you know, what you’re saying is that. It starts in a highly loaded couple of bushings and spreads from there, if you can, if you can fix or upgrade those particular bushings, then the remaining bushings may be okay.
Edo Kuipers: Correct. Because there is always a highly loaded, like you said, and there’s always a a side which is more tensile loaded, and the other side is more compressive loaded, and especially the tensile loaded part is, is [00:09:00]more severely for the fatigue.
Joel Saxum: The other side of this is a blade replacement. So you’re either gonna, you’re going to have to, you’re gonna do something like this, or you’re gonna replace the blade. And, but now again, we’re talking about this aging fleets remaining useful life, what spares look like out in the field. A lot of these turbines.
Spares are not readily available for them. Right. If we’re talking about, and we’re talking about different markets like you, you ju you guys just executed. We’re gonna talk about this a little bit, but you just executed this amazing project, uh, over in the APAC region. It’s not easy to get blades shipped over there, or like in Australia or South America, like in the States.
We’re kind of lucky people don’t realize this, but we’re kind of lucky that we have a fleet of 75,000 turbines because there are spares around for some things. However, as these blades get older, like nobody’s gonna do you a run of a 12-year-old, 15-year-old blade, it’s what, whatever’s on the ground around the world is what we have.
And that is it Ev And then in composites, again, everything can be repaired, but it’s just how much, what is the [00:10:00] economic case for? So you guys are building that economic case to make this make sense.
Edo Kuipers: A new blade, let’s, let’s. Have the old fashioned prices of 10 euros per kilo or whatever, and you have a blade of 15 tons that will cost you like 150,000 euros.
As a new blade, you already paid for that price. Then you have to do it a second time. It’s not only that, it’s also the waiting time. If you have to wait for one year, your loss, your loss in, in, in, in, in, in revenue. Also, let’s say like 100, 150, maybe 200,000 depending on your feed into reef tariffs that you get.
It’s also, that’s also a loss. So the total thing will cost you already like easily like 200, 300,000 euros for for one turbine, right? Or one for one rot blade. If you do a repair, then there’s a repair. It’ll cost you like a fraction of that. It’ll cost you maybe like 30, 40,000 euros.
Joel Saxum: Yeah. And the reality is, is when you [00:11:00] replace one blade, you normally are replacing all three.
I mean, unless you, unless you can find a, a matching, you know, a good, well you, you get lucky and you find one blade that has the weight certificate and a bending moment certificate that matches your other. Two that are up tower. Mm, pretty rare. More than likely you’re getting all three new blades. So then all of a sudden your 150 turns into 450 before you even start it.
Soren Kellenberger: Absolutely. And that’s, that’s if you can get a replacement blade because if you need to go back to a, a manufacturer Right, they, they will not sell you that blade for the original 150,000 Euros. Uh, so. If they at all have a mold before they get it started up and all the initial cost in, in getting that up and running, you are looking at 2, 3, 4 times the price of the, of the new blade.
So it, it really adds up if you have to replace. And there’s of course also the whole discussion right now with, um, the old blades and all the waste it’s, uh, creating. So from an environmental perspective, it’s [00:12:00] also a huge benefit to, uh, repairs instead have replaced. Uh, but, but the financial is, it’s just, uh, yeah.
Basically a no brainer, right?
Allen Hall: Oh yeah. The financials make total sense. And this is where we’re gonna get to the solution from WE four C, which is called Refit, which is a, a bushing upgrade and the workings together of two separate companies. So we have WE four C, which is, uh, based in the Netherlands of course, and then we.
We have Sorin and CNC onsite, which is based in Denmark, so they’re really relatively close to one another, and both companies are powerhouses in wind and, and fixing wind and making it more efficient and getting our turbines optimized for long-term duration, which. What we in the states have not been doing, but we’re, that’s gonna rapidly change in the next couple of months.
Uh, so this refit solution does make a lot of sense to me just because the demand is [00:13:00] gonna be there and we need to have some way of doing this. And, uh, this is what I want to talk to both of you about, because understanding how to replace these bushings, it, it seems at first, like it’s an impossible task.
You brought two powerhouses together to solve this problem. You wanna discuss how the two companies work together, we foresee and CNC onsite, and how this, uh, repair rework is accomplished.
Soren Kellenberger: I think if we, if we take it back a step, um, we at CNC or uh, onsite was originally involved in a plate repair project.
Uh. Before, actually before the, the Corona uh, uh, situation. Uh, so we had worked on a machine and made some, uh, tests in, in our workshop on this repair, drilling out bushings. Um, then Corona came and the project was stopped and never restarted again. So about four years, pretty much to the, [00:14:00] to the date because it was at the Huon wind, which is now coming up again in, in one and a half week.
Um, we were in, we met, uh, we foresee, uh, so we had this drilling technology sitting there, and I walked around and I saw these, uh, nice, uh, bushings and, and, uh, a couple of nice gentlemen standing there. So I approached, uh, IDO and, and Arnold and said, uh, Hey guys, this, uh, this, this looks nice. What is it? And, uh, we started talking about that.
Uh, they actually had the. Pushing technology ready. They needed someone who could drill out the old ones. And yeah, we had the technology to drill out the old ones and needed someone who could insert those replacement pushing. So it was actually, um, a very, a very good fit. And then the whole corporation just started off basically on trust.
I mean, we signed the NDA and stuff like that, but we just trusted each other and, and moved, uh, forward. And it took some time before getting to the first customer also. What you mentioned in the [00:15:00] beginning, right, Alan, that there’s, yeah, it looks nice, but has it been done before? It’s been, we’ve heard that question, uh, a lot of times.
Um, so it took some time before we got through all the testing and stuff like that, but, uh, now it’s up and running and, uh, works really well.
Edo Kuipers: At the third point, the customer said to us, if you can show a test with this number of cycles and fatigue, it was something like a certain level and a 1 million cycles test.
If you can show that to me, then we will sign the contract. So we sent two coupons, you one to a, to a Dutch Institute, independent, one to a German Institute who was doing um, um, coupon testings. And we said, okay, run it. Run them off both for 1 million cycles. And they had, they had the same result. So, and both, both have reached the 1 million cycles.
So we said to the customers, we did not provide one component with 1 million cycles, but two for you to, to make sure. And also at different test institute. [00:16:00] And then they signed the contract and at all went. Very fast after that.
Allen Hall: Well, yeah, if as soon as you can show the technology works in the laboratory, the next step is to get it deployed.
So the, the, the process works sort of like this. And, and stop me if I’m too far off because I’ve had to explain to me very slowly. Ada has done this very carefully. So let’s see if I can, uh, explain it to the teacher. I’m gonna take, I’m gonna remove the blade off. I’m gonna bring the blade down, and they’re gonna call Soren’s people at CNC onsite.
And they’re going to actually. Have tooling this amazing tooling to drill out this old bushing and make it such that this ados wonderful refit solution can slide into this new drilled spot that’s been perfectly honed. And this new bushing goes in and there’s a bunch of epoxies added behind it to hold that new bushing in place.
And then once that’s done, I move to the next one. And because the system is set up with CNC onsite to have [00:17:00] to go ahead and, and drill out multiple bushings, uh, very quickly, this process, once the blade is down, is actually very quick. So you’re talking about maybe a couple of days total to repair a blade that otherwise would be
Edo Kuipers: discarded.
This is, I’m very happy with this at the moment. And this is also with thanks to the um, uh, to the criteria, to the cap measurements of up tower we are doing. So this is the first step we have to do, of course. But thanks to that we only need a limited amount of bushing. So we are doing, let’s say like 24 to 30 bushings are being drilled out.
This takes us. 24 hours, more or less, we are doing it. We could do it in three shifts, so then it’s one day, but we are not doing it in one sh one shift. They, they are working neatly, they are working accurate and with the same team. And so they are doing three days. After these three days, they are, they are done with the drilling.
Um, then we need to start the [00:18:00] preparations, so the new bushings needs to be implemented. That will take us, let’s say like eight hours of preparations, because everything needs to be far tight and that that is essential for our solution. It needs to be low, far level, so all the air out. And then after this, that takes about eight hours, and after that we have the infusion day.
That’s a really exciting day always, because once. The resin is running. We can’t stop it anymore. Right? So this, this day is also, let’s say eight hours. So, and then we have some finishing because it would be nice if we are hoisting up the blade again. A tower that the, that the root is, is flat. Yeah. All the resin pieces are off.
And we may have to make sure that, uh, that all the, all the bushings are aligned well for the proper load distributions. Um, another, let’s say another few hours, maybe eight hours. So then we are 48 hours, 50 hours of the whole process working with three or four people. That’s it.
Allen Hall: [00:19:00] Wow. And does it take anybody special to be on site from like the CNC onsite?
You know, c NNC onsite makes these great machines that are highly accurate. Uh, Soren, do you need to have specialized people on site or are you training people that are local to do this work?
Soren Kellenberger: We are training local people. So that is, that is part of, of the whole solution that, that we do a technology transfer.
So it’s, people are trained with this specific project. We started by having the, the team in Europe, uh, so they had some, some training days with, uh, IDO and the guys in the Netherlands on the, uh, whole mounting and infusion technology. And then they came to our workshop and trained in operating the drilling machine.
Afterwards. Then for the startup, we send the technicians, uh, to, to the customer, um, who supported for a couple of weeks, and then we went back. Uh, and then we are basically, uh, always ready to support. But on teams or whatever, we can set up a link and, and [00:20:00] a system if needed. They are running with it, uh, very well.
So it’s, it’s been very limited what we’ve had to do. Uh, we get some feedback on the drilling process so we can optimize some parameters and, and step by step, uh, improve the process time. We’ve done some optimizations to the drills, uh, to make them last longer and, and do. Those, uh, things more efficiently, but they are basically running on their own
Joel Saxum: guys.
I think that’s something to make sure that we don’t breeze over here as well. Is the local content part of your solution. So you’ve done all the expert engineering, uh, figuring out the processes, of course, all the, the precision machining equipment from Soren’s team as well, but you can export it to different locales and train up the local staff and get them moving.
So places like it’s, it’s expensive. It’s difficult to get people into South Asia. It’s expensive, it’s difficult to get people into South America, to Australia, to, to anywhere really. You’re gonna export this. However, what you’re also doing is bringing local jobs, local [00:21:00] work, local revenue to the local teams.
And I know that that makes a lot of, a lot of people happy. Um, including, I know, like we’re, we’re sitting in the States, right? There’s a lot of ISPs over here, hopefully listening to this. They’re saying like, Ooh, we’d like to be the people that implement this solution over in the States. Let’s get ahold of these guys.
Uh, so kudos to you on that as well.
Edo Kuipers: Yes. The idea is indeed to have, um, on different regions in the world, uh, different, uh, repair hubs so that we can always work with the same teams, with the, with the, with the same people. So we train them, educate them, and then of course, from the Netherlands and of course from Denmark, we still, we will always support them, but it can also be done by a teams or a conference calling.
Allen Hall: And let’s talk about the Southeast Asia. Project you just completed successfully and uh, it looked fantastic. That was the first major project that you’ve tried this technology on. Besides everything in a laboratory, kind of one off things, but now you’re going to scale. This is a big step. [00:22:00] How did it go?
How did that process start? What did it look like afterwards?
Edo Kuipers: Um, how did it start? Uh, by doing it, I mean, sir and his team went on site, of course, and we encountered difficulties, of course, first time with drilling. And, um, that had multiple reasons. So the guys, uh, even the, the, the, the colleague of Sir went, went back to Denmark.
He changed, he fixed something on a drill, had sent a new type of drill and it ran perfectly. So from there, from that point, the drilling was no problem anymore. Then after we created the holes together, um, of course we have to do the infusion. And going from going from infusing like five bushings in a row, we had to go to 30 in a row.
And that was in the beginning, quite challenging. Um, to have, so it was a little bit like keep your fingers crossed if everything is going fine, but it works somehow. Um, it works [00:23:00] and, and all the resin came out. So we are quite happy with that. Uh, of course there are some fine tuning in the processing in the quality.
Uh, but that’s, that’s important for us is, is, is to keep, you need to keep following the. The quality processes. If you, if you strictly follow the quality processes, make sure it’s vacuum tight, make sure that you work in sections, so don’t open your resin folds all at the same time, one by one correctly.
And then just monitor and make sure that, of course, refresh your resin from time to time. Because that’s a pot life thing, and it takes, let’s say like maybe two hours before the whole resident is going through the bushing and also in the depth direction that is being impregnated well. Um, so you have to make sure that your pot life is under control.
And also we work with a tent, which is like 100 square meters, which is air conditioned, and, and that all contributes to a, [00:24:00] a controlled process. And yeah, that was very scary for the first time. I must admit that if you do second time. You get more relaxed. And the third time, it’s like driving a car the first time.
Oh, this, I need to pay attention to the gear. In the, in, in Europe, we have gears and, um, on the car and um, we, we need to, we need to drive and look around us and the navigation system. Um, so, and at a certain point it’s all going automatically. Right. How many blade did you repair in Southeast Asia? 18. Now we are working the, the, the sixth set.
Set number six has just completed, and I know this every week, I have contact, uh, with, with, with, with. With. With one guy there. It’s, it’s, we know each other good. So he, he gives us the feedback and it costs me every week. It costs me half an hour, not more.
Joel Saxum: It’s usually not one blade. It’s usually the whole step has an issue, correct?
Edo Kuipers: Yes and no. Um, what they do now at the moment, um, they, they, [00:25:00] they, they, they see that one, one blade has, um, uh, a problem. So they, they, they already. Start thinking ahead by taking all three blades down. So even if, if one or two blades within the set does not have the variable capping, they know in half a year it will happen.
That’s the experience they already have. And the the, there is the certain. They have a certain agreement here with the crane. The crane is coming, let’s say they use a crane every month for a fixed period. So they say, let’s hoist the complete set down. Then we have three weeks to repair, and in the fourth week we will hoist it out again.
Joel Saxum: Yeah. And the, and the technicians on site, once they’re trained up, uh, they’re loving it because whether it’s in the hot in South, south Asia, or if you’re doing this in the cold, you’re working in a tank. So if they got an extra couple blades to work on as a blade technician. I’m all for it. I’m all for it.
A little bit more time in the AC or in the heat and nice kind, controlled facility. It’s,
Soren Kellenberger: uh, I think the, the guys will like that a lot in the [00:26:00] field. One of the benefits you, you get also is, as Ido mentioned in, in the beginning, if you catch it early, you have fewer, uh. Bushings to repair. So, uh, you, if you catch it or, or repair it while you have your blades down already, you can repair fewer bushings.
And in terms of process time, it’s also a little bit faster. That’s also what we learned to, uh, to drill out the bushings when they are not. Too loose. Um, the more loose they get, the more risk you have of vibrations when you start drilling and that can potentially damage your drills. Uh, um, and it, it just adds to the process time.
So. There are a lot of benefits by catching these, uh, things early and getting the process, uh, completed at an earlier damage stage.
Allen Hall: Now you’ve completed your first big project. What’s next? It sounds like there’s a lot of opportunity worldwide to do this refit process.
Edo Kuipers: Yeah, we, the, the, the first, the first [00:27:00] team is the, is our number one team.
You can see it also here on the, on the breast. And, um, we are now looking basically a number two team, which is, is as excellent as the number one team. Um, so yeah, it’s not only that, um, we have to do, I mean. If you would like to have this, this technology implemented, um, it’s, it’s going Pfizer versa. So, um, very, very important is that we are working together with teams, service teams, which 100% trust each other.
That’s where it starts already. Um, and they are fixed. So if, if you have fixed teams, you teach them and they, they, they, they, they, they learn by experience and that that’s how it should be. Um, so yeah. The next step is, is we are talking with. Next step is we are talking with different, uh, potential, um, service companies, um, worldwide.
So we are talking within America with, with one or two, um, potential, um, good guys, good [00:28:00] groups. Um, the same in, in India, for example, and the same in, in, in South America. That’s, that’s our aim to have, let’s say in, in South America. Two service companies, uh, in, in, in India, two or three, uh, um, in India, in America, one, two, or three or whatever.
So that’s, we are now discussing with these parties, and it’s not only one direction, okay? We want to sell it to you. Now, it’s also the other direction. Are you capable? How do we want to work with 24 hour cycle? Do you have a place where we can install everything? So that’s our next step to explore.
Allen Hall: Yeah.
And Sorin, you have to start making more machines. I hope so.
Soren Kellenberger: No, it’s, it’s definitely, we’ve, we’ve seen a lot of interest and, and we’ve also had numerous contacts over the years. But again, it’s been back to this, have this been done before and. It sort of, no one wanted maybe to be the first, but now the first commercial project is, is out there.
It’s, it’s still [00:29:00] ongoing. And, and once this is completed, we will have installed more than a thousand bushings. Uh, so, so I think it’s, it’s a decent. Proof of concept. It’s a, it’s a real case. It’s not just one blade or one set. It’s, it’s actually a, a, a larger farm that, where, that we have, will have repaired once, uh, this project is, is, uh, 100% completed.
So it’s, it’s going really well. Uh, and I think that of course they will, once the potential customers see that, that this project is now open and running, it will move forward with, uh, contracts for, for other projects. But who is gonna be the first is still, uh, difficult to say, but, uh, I’m pretty sure that, that there will be more.
Edo Kuipers: Yeah. We would also quite be keen on getting on the table with the big OEMs because there are many parks which have still some kind of, uh, service contract, eh, uh, full service agreement or whatever. So even if park owners, many time [00:30:00] park owners say to us, Hey, we would like to have your technology implemented because that sounds to be the most robust one.
Um, but you need to convince the, the, the, the, the Big O oms. Um, and sometimes that is, that is, that is a difficult part because you need to go through, through these different steps with a lot of decision makers, uh, in these organizations. And that takes time. So request is, are on these big, OMS is to define clear criteria for us.
How, what should be, what should we fulfill? And if we fulfill this. Basically, do we then have a deal with each other? Because in the end, for us, we need to help those park owners because they are in the end, eh, um, they have the, they are feeling the pain on, on, on, on this kind of, um, yeah, sometimes hidden problems.
Allen Hall: Well, if you’re an OEM or an operator, where do you start this process? Who do you call first? Do you call we foresee or do you call CNC onsite or does it matter?
Soren Kellenberger: Call either of us and, uh, we [00:31:00] will be, make sure to, uh, involve the other parts. So that’s where the trust and cooperation comes into play. Uh, yeah, just reach out and, uh, we will, we will.
Set up joint meetings.
Allen Hall: The website for CNC onsite is CNC onsite.dk because they’re in Denmark. And the website for WE four C is we the number four, letter C, letter e.eu. And either one of those addresses will get you to the information you need about the refit and. Uh, get you started because as we’ve seen the United States, a lot of things are changing and worldwide.
We need to keep these turbines up and running longer. The way to do that is to put a little bit of money into them now instead of spending a whole bunch of money later. This is why we love we four C and C and C onsite because they’re saving operators, literally millions of dollars. So. You know, and Soren, thank you so much for being on the podcast.
We, we love having you. And as you finish up the Southeast Asia project, you gotta come back on after you [00:32:00] finish those thousand bushings and give us an update. Absolutely. We’ll be happy to.
Edo Kuipers: Yes, thanks a lot. We are fully happy to.
https://weatherguardwind.com/refit-blade-root-repair/
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