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How Low Cost CMS Stops Catastrophic Damage

We discuss how using continuous monitoring systems (CMS) can prevent catastrophic blade damage from transportation and lightning. We also share insights from GE Vernova CEO Scott Strazik on potential industry growth. And TPI Composites has hit the milestone of manufacturing their 100,000th blade.

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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: On this week’s Uptime Wind Energy Podcast, we discuss how continuous monitoring systems could prevent catastrophic blade damage due to transportation issues and lightning strikes. And that’s a good discussion. GE Renova, CEO Scott Straza sees a soft entree wind market through early 2025, highlighting potential growth in Repowering projects.

TPI composites manufactures their 100,000th blade. Congratulations. And our wind farm of the week is the Jericho Rise Wind Farm in upstate New York.

You’re listening to the Uptime Wind Energy Podcast brought to you by bill turbines.com. Learn, train, and be a part of the Clean Energy Revolution. Visit build turbines.com today.

Now here’s your hosts, Allen Hall, Joel Saxum, Phil Totaro, and Rosemary Barnes.

Allen Hall: in his first appearance at Barclays Conference. Since GE Vernova’s spinoff, CEO Scott Strazik offered a sobering assessment of their wind business while highlighting some positive developments. Now, Strazik, uh, described the onshore wind market.

Is currently very soft, quote unquote, with weak order expectations for the first half of 2025, though he noted opportunities in Repowering projects and certain international markets that could, uh, at least partially offset North American weakness. Now, one of the things that was mentioned during the Scott Straza, um, conference or discussion was that they are doing internal inspections and a lot of them using crawlers, which I, I believe is are from Aeros, where they’re looking at.

Uh, the blades at the factory internally after transportation, and then once they’re up on tower trying to capture any defects that are happening. And this, at, at, when I saw this, I thought, oh, it goes back to Phil’s comment that a lot of damage is actually happening during transportation. And that there maybe they’re trying to, uh, work on that transportation piece or at least be able to make some claims that their blades have been damaged during transportation.

That’s a unique piece ’cause I don’t know any other. OEM that is doing that many inspections at the moment. Joel, do you know any of

Joel Saxum: others that are doing that? I know they should be. Uh, but, but, uh, yeah, same page. I don’t know anybody that actually is. I think it’s a, a bit of a. It’s good market response, to be honest with you, from my opinion, because I mean, you know, we’ve, we’ve seen so many blades that are brand new or within warranty having issues.

Well now you can trace them back. If you get that inspection done at the factory, you put in a, uh, basically a, a. Data point of traceability. If it was good then and it got to site and then all of a sudden there’s a damage, well that happened during transportation and handling. So you can start to say, that was your fault.

This is who should pay for this. These are the things that are being traced. Right. Um, and we did see in a presentation, uh, just yesterday or two days ago from Arons that they were putting statistics to the findings of their internal crawlers. And one of them was rad at like that. 70% from root to tip mark where that handling happens.

There was a spike in damages that they’re finding. And it was mostly all related to handling, so I don’t know of any others. I know it’s actually kind of hard to get anybody as, even as an operator, get any of these OEMs or blade manufacturers to agree to get inspections done of the factory.

Allen Hall: Joel, do you think that some of the damage is caused by the cradles or the saddles that are used during transport, or is it more about just the roughness of the roads and the, the trucks that are used to move the

Joel Saxum: blades around?

Well, it’s ha, it’s handling. Uh, for the most part because if you can eliminate how many times you have to handle anything, you can avoid damages. This is why offshore wind farms have a, a problem as well, because if you’re going to move, even if the factory is key, the factory’s close to keyside for those blades, you still have to get them out of the factory, into the lay down yard to the key, and then craned onto the vessel, and then crane, you know, moved on the vessel and then craned off the vessel.

And if you’re in that Jones Act situation, like we are here in this. States, you’ve got to move them twice offshore. That’s just not good, right? Uh, you don’t want to be, you want to handle these things as minimal amounts as possible, because at the end of the day, they’re fragile. How many blades Allen have we seen where like the trailing edge has like a little.

Crunch in it, you know, a lot too, way too many.

Allen Hall: Rosemary. Is there a lot of structural reinforcement that happens on these longer blades for the lifting points and the transportation points?

Rosemary Barnes: No, they don’t. Uh, I, I mean they definitely, um, consider that, uh, as a potential failure mode, but they’re not.

Necessarily trying to reinforce a blade as they are trying to make the cradle so that it won’t damage the blade and put it in a location where there is some, um, reinforcement there. I’m not a hundred percent sure that it’s like purely one way direction. They might, you know, know where the cradles roughly have to go and make sure that there is, you know, like a bulkhead or something there that can, um, stiffen, stiffen up that area a bit locally.

But they’re definitely, they definitely don’t want, you know, a bunch of extra weight added purely for the. Point of transportation, because then it’s up there on the turbine weighing more than it needs to for 20, 30 years. And that affects every, every other component. The, you know, bearings, the. Um, drive, train the tower.

The foundations all need to be beefed up a little bit extra because of the extra weight.

Allen Hall: Phil, what is the cost to the industry due to transportation damage? I think that number’s big.

Phil Totaro: Yeah. It’s, it’s in the millions and we’ve actually been rerunning our calculations, um, recently. So, um, blade transportation damage is actually now number three.

Um, lightning damage to blades has actually overtaken it as being the number one issue. Um, which may or may not be a good thing, I guess, depending on what area of the business you’re in. Certainly if you’re selling people lightning protection technology, uh, maybe that’s good. Um, but, uh, blade root cracking, uh, is also now a big issue.

But all three of those, so. Lightning damage, blade root cracking and transportation damage are like your top three, uh, issues. And it’s all well into the hundreds of millions of dollars a year, uh, in annual, um, operations and maintenance expenditure just for the US market alone. Unfortunately, we don’t have data on, um, the faults and failure rates in other countries yet.

Um, but based on recent conversations, uh, with my new friends in Australia that. Uh, it looks like we may get some data.

Allen Hall: Alright, so after the break, I want to highlight what Phil was discussing here about the hundreds of millions of dollars in transportation expenses do to damage and what we’re doing about it or what we can do about it.

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Visit eLog ping.com and take control of your turbine’s health today. Okay, Phil. If there’s so much damage happening from transportation and lightning, by the way, it does seem like CMS should be used to detect it. Now it looks like GE is actually gonna use the internal rovers from Aeros to inspect them, but are there any CMS systems on a.

Truck or on the cradle when blades are being transported at the minute?

Phil Totaro: No. No way. That’s that’s way more sophisticated than this industry would ever employ. And way more expensive than anything we would ever choose to do if we can’t even get people to put CMS systems on turbines. Um, you know, even 4, 5, 6 megawatt turbines, then we’re not gonna have, you know, any kind of, uh, fault and failure detection on the, the transportation systems themselves.

Not to say that that wouldn’t probably catch certain issues and, you know, you can certainly put like strain gauges and accelerometers on the truck, uh, or on a cradle. Um, and some people may in rare occasions use things like that. Um, but it’s not standard

Joel Saxum: for sure. Yeah, Phil, I was gonna mention that. Not standard as well, right?

So in Hamburg, two years ago, I ran into a company that was doing just this. They had a sensor that was about the size of a cell phone, and it’s really basic sensor, to be honest with you. It’s just GPS communications, a battery, and then an accelerometer and a gyro inside of it. And they were, it’s the same kind of stuff that’s used to track fleet vehicles, right?

Like, oh, this is this vehicle, this is, so, you can see where it is if they hit the brakes hard, these kind of things. But they were wanting to put them, that was their goal. We’re gonna put ’em on turbine blades from the factory. So locationally geographically, we can track them, uh, wherever they go. And then also if they hit a bump hard, if they do something, if they get dropped or whatever, you can see the different G-forces on the blades themselves.

But. You know, when I was speaking with him, I was like, that’s cool. I said, probably the locational part, because at the, to be honest with you, you’d have to put a half a dozen of these things on different parts of the blade to start to see if the root bending moments moved a bunch or something of that sort.

And at the end of the day, you’re not gonna get, like, blades don’t show up cracked in half, you know what I mean? Mostly it’s lifting damage or something like that. So the accelerometer thing, I don’t know if that’s really a valid, but people have tried to do it. It just has never, could, never caught on.

Allen Hall: Okay, Rosemary, when a CMS system should be installed, there must be some sort of criteria here, and I want, I want to get your thoughts about this because there is a lot of discussions about CMS and monitoring of blades and monitoring of gear boxes, and there’s a spec gonna come out in the next, I don’t know, it’s a couple of weeks, I suppose, and.

There is so much discussion about it, but I want to hear some sane thoughts about when you should use a CMS system.

Rosemary Barnes: You know what? I think that it’s got a lot to do with, um, the amount of. Um, spare time that your operators have on their hands, people that working in operations and maintenance and, um, all of those sort of, you know, like afterwards things, um, they’re so pressed for time.

They do not have enough time to do all of the things that they already know they have to do. They kind of don’t want to know about additional things. And so when you say how much should you have, they should have that CMS because it will ultimately make their job smaller. Right? That, um. You that that will instead of.

Having to replace, you know, some gearbox component or some bearings that means, you know, like a shutdown of a turbine for a long time and all of a sudden an emergency to, you know, get this fixed quickly. Instead of that, they would be able to, you know, monitor across the fleet. They would know, okay, we’ve got a few that are coming up and we’ll need to be replaced soon, so we’ll make a campaign and we’ll get them all together.

But, um, yeah, so that’s, that’s what should be happening. The industry would work much smoother, but I know that the reality of it is that people are too pressed to start thinking about stuff like that.

Allen Hall: Phil, what are the top four or five money losers? On turbines at the minute?

Phil Totaro: Uh, well, generally blades, I mean, I can’t, you know, again, I can’t really categorize everything, um, specifically ’cause we don’t have enough information about all the faults and failure modes, but blades number one, uh, gear boxes, particularly bearings and anything having to do with kind of the drivetrain overall, uh, main shaft, et cetera.

So that’s all kinda lumped in there. Um. Jaw bearing and pitch bearing. Those are, those are kind of your top three or four.

Allen Hall: Okay. Let’s look. Let’s look at sources of problems. It was lightning’s number one, right? In terms of sources of problems

Phil Totaro: for

Allen Hall: blades? Yes.

Phil Totaro: And for tower. And for tower collapses, potentially, yes.

I mean,

Allen Hall: right tower collapses. Catastrophic lightning has gotta be close to the top. The insurance companies will tell you that.

Phil Totaro: Uh, yeah. Again, I don’t have the data to say that if an insurance company will tell you that, then I’ll believe it because that seems logical that, you know, I mean, how a blade is even able to strike the tower to kind of knock it down is if the blade’s got some kind of damage and there’s a load imbalance, um, it’s hard to just get a load imbalance from some other.

You know, like you’re not gonna get a load imbalance from leading edge erosion, let’s put it that way. I mean, you’d have to have ridiculous leading edge erosion to have a load imbalance on the blade or the rotor

Allen Hall: catastrophic. The things that will take down turbines today are light. It gotta be lightning.

It’s gotta be number one. It’s not even a close second to that, I don’t think. Some sort of serial defect in blades. De bonding. Yeah, de bonding, right. Something that’s just. Almost immediate, but uh, but, but a structural problem, right? A structural problem that’s probably a factory issue, a quality issue.

After that, it gets pretty consistent, right? You’re talking about gearbox failures, which are really. Time driven, some sort of bearing failure

Rosemary Barnes: loose bolts in the tower. Right? Haven’t we seen a few of, a few of those

Allen Hall: root blade root cracks, which are a manufacturing issue and yeah. The tightening of bolts.

Rosemary Barnes: Yeah. Root inserts,

Allen Hall: right Root inserts,

Rosemary Barnes: detaching. Also foundation problems can cause it. Um, and, uh, could I just, uh, go off on a, a tiny tangent that you said, you know, lightning obviously I was talking to somebody recently, um, ’cause there was a, a tower collapse in Australia and they’re saying it was probably lightning.

And anecdotally in the Australian wind industry, people are rolling their eyes going, oh, come on. As if that’s the case. So I don’t think it’s necessarily obvious. Um, I mean, I, I know that we all, we all know. That anything that can damage a blade so much that it, you know, falls in half or folds in half, or, um, you know, gets a big crack so it hits a tower, then you’ve got a big enough imbalance that your tower’s gonna start wobbling around like a noodle and then it’s gonna, you know, it’s gonna fall over.

Right. Um, so it doesn’t, it’s not that the lightning. Struck the tower down, you know, even though, I mean, lightning can do that, we’ve all seen trees fall down right. From being struck by, struck by lightning. So I guess it, it, it could happen, but that’s not what the failure modes we’re talking about, right?

It’s, it’s any, anything that can make the blades, um, damage, get damaged so much that they have strike the tower or a big chunk falls off and sets the, sets the tower wobbling.

Allen Hall: I, I totally agree. And if those are the big money losers. The why are they’re not CMS systems installed to protect against the million two, four, $5 million loss.

We’re focused on, weirdly enough gearbox monitoring, which is great, you know, but it, it is a time, long time derivative problem. It’s gonna degrade slowly. And we know what those curves are like, is just like leading edge erosion, right? So why wouldn’t you do the simplest. One first lightning transportation lifts.

Then you’re looking at sort of serial defects. I think if, you know you got a, a root cracking issue in a particular kind of blade, then we put a CMS on it. But the, the gearbox monitoring and the oil monitoring all great, but are they, they’re not, wouldn’t be top priority in terms of money. Saved. Right.

Rosemary Barnes: But I think it’s in terms of how easy it is to monitor these things, because I mean, maybe there are blade monitoring solutions today, I, I, maybe I’m not a hundred percent up to date, but at least until recently, there were ways to monitor it, but not cheap and not.

Easy to actually monitor. You know, like it’s really hard to say, like, you know, um, wind turbines are, are, are cracking and stuff all the time. It’s like impossible to say, when is a crack gonna turn into something that I need to worry about? And unless you’ve got strain sensors like covering a blade like a net, you’re not actually gonna be sure that you’re gonna catch every single big crack that might happen.

So I think that that one. Hard. Lightning I know is easy, but I don’t think it’s well understood how easy it is to monitor for lightning.

Allen Hall: It’s a couple hundred dollars per turbine, right? Today. It’s cheap compared to a drone inspection, but I don’t think that’s

Rosemary Barnes: well

Allen Hall: known. Rosie would, would you say that the, all the cracks and the leading edge erosion and even some of those serial defects, because we’ve have drone inspections happening in some cases mandatory quarterly, quarterly.

Yeah, quarterly. Would you, would you put a CMS system in, or we just rely on the internal external drone inspections as your quote unquote CMS?

Rosemary Barnes: Well, I, I mean, I don’t think, I think you might end up with a false of a sense of false security by putting CMS to monitor cracks that were identified in drone inspections.

I mean, if it’s a big enough crack to be worried about, it needs to be getting repaired right away. Um, it, and then there’s the next category down where. You wanna monitor it and see how it grows, then? Yeah. I mean. I dunno, it’s hard to say. I can see CMSI, I don’t know if even know if it counts in CMS ’cause CMS to me sounds like a, you know, like a monitoring while normal operation is happening.

But when you know you’ve got a bad crack or maybe you’ve got like a serial defect issue and you know you’ve got 10 affected turbines in your site and it’s, you know, taking your long time to get, maybe you need even replacement blades or you know, you need to take them down and do a month long repair on each one.

Um, sometimes you would really like to keep badly damaged blades operating. If possible, and then I can definitely see a case for you, you know, you’ve got an, a specific area that you’re monitoring, put some, there are systems that you can put in place to monitor a known one location of a, a crack. And then yes, definitely then you can, you know, run, you don’t have to be as cautious about shutting down your whole potentially affected, um, you know, uh, uh, population of, of turbines and, and blades.

But beyond that, I actually, I don’t think that. Drone inspections are good enough and definitely not on their own. I mean, they don’t capture all of the inside stuff. Even the internal inspections don’t capture all of the inside stuff. I just think that you’re not actually like, you’ll get a little bit closer.

Um, to knowing what’s going on with your blades, but not close enough to not have to worry about it.

Joel Saxum: Yeah. I think that there’s a, there’s a couple of new advancements in, in CMS for blade cracks as well, so of course there’s, there’s multiple of these solutions actually out there, right? Uh, we have, we have a good friend of the show that’s installing cameras inside of.

Blades to monitor cracks right now too. Uh, but also Aeros was doing that. They talked about it at Blades USA this week, uh, putting cracks in or cameras into monitor specific cracks. But there’s also been advances in CMS at that really minute level of ac accelerometers and vibration where, so a blade is inherently stiff, you know, the frequency of vibrates that if you start to get a crack in it.

It reduces the stiffness, so the frequency changes in the whole blade. So it’s one of those things where like, if that happens, then it’s a flag come and look at me, I think. But, but I think where we’re at here now is this, Alan, you raised a great point with this conversation because if you were to ask Phil, Phil, what are the numbers for failures in the most expensive ones?

10 years ago, it would’ve been gear boxes. So in, in response to that, the industry was like, we need to monitor gear boxes. We need to monitor oil, we need to monitor all this stuff. And we have solved that. Not solved, but we have greatly reduced the cost of that problem as an industry. I. Right. So now we’re at the next stage.

It’s like the industry has forgot that that’s how we solve that problem. And now we have the next iteration of problem, which is blades, and we have solutions for it, but nobody’s implementing them.

Phil Totaro: Well, and the other, the other real issue for blades was about 15 years ago when a lot of companies were developing very sophisticated.

You know, blade monitoring systems. They had, you know, fiber Bragg sensors that they wanted to put into everything. And I mean, but these, these systems were all so fantastically expensive and unfortunately unreliable, particularly as it, as these systems and the sensors on the blades interacted with lightning.

Um, you know, you, you end up with. Uh, you know, a boondoggle that doesn’t really pay for itself. Uh, and so a lot of companies were just like, you know what, we’ll rely on drones. Which, you know, even again, going back 10 years, were cheap and still relatively are, um, to, to do that kind of an inspection as opposed to having a full fledged CMS system integrated into the blade as CMS technology gets cheaper.

That increases the rate of adoption. Um, the reality is that the industry still needs solutions, but it needs more cost effective and targeted solutions. It sounds like

Allen Hall: That’s what I’m saying is that I can go back to Phil’s point. You gotta have RROI, high, ROI on any kind of CMS. You put on your most expensive.

Losses are catastrophic. Go cover those at a minimum. And the cost of those sensors to catch the catastrophic before they turn catastrophic are incredibly low. They’re in the hundreds of dollars well below a thousand dollars. Lightning ones are about $250 at the minute. They’re crazy low, they’re way less expensive than pretty much any other CMS on, on the turbine right now.

Put them on, at least you’re gonna. Protect your

Joel Saxum: huge downside loss. Yeah. Think about the simple math on that one. Alan. 250 bucks a turbine for lightning sensors so you know exactly when a tower got struck. And if you use them properly in operations, you can, you can instrument a thousand turbines. For the cost of one insurance deductible.

Allen Hall: As Wind energy professionals staying informed is crucial, and let’s face it difficult. 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 PES wind.com today. CPI composites, A major supplier in the wind energy industry has celebrated the production of its 100,000. Uh, the milestone highlights the company’s longstanding role in supporting the growth of wind energy through, uh, blade manufacturing across multiple global facilities.

So, you know, obviously you do the math. 100,000 divided by three is like 33. Thousand turbines plus. That’s a lot of wind turbines. I was trying to do the math on where most of those blades were built. That, my guess is that a significant portion were built or, or are built right

Joel Saxum: now down in Mexico. Right?

Yeah. Everybody you talked to is like that. Yeah. That factory. That factory in Mexico. I think there’s three factories in Mexico. Two. I know there’s two. I think there’s three, but to me that seems, doesn’t that I, I honestly con congrats to TPI for the a hundred thousand to play, but. 30. Then when you do the math, Alan, you said 33,000 turbines.

There’s almost 500,000 turbines in the world right now. That seems low. I would think that TPI would have a larger share.

Allen Hall: Yeah, it does seem low. I, I would say they would have a lot more, so the a hundred thousand doesn’t make sense except that they were kind of, Johnny come lately in a sense that, that they were doing small production runs for a while.

Mostly in the States when they started, they were making blades, I think in Rhode Island for a while. And then once it got to scale mostly in Mexico and Turkey and some other places, then it really picked up, right?

Phil Totaro: Yeah. And then, but then they mothballed the, the Newton, Iowa factory in 2021 to shift production down to Mexico and India, where it was cheaper cost of labor and, um, you still had access to, to raw materials.

Um, but. They’re now talking about, in part because of the, the threat of tariffs that are to be imposed on, on Mexico, potentially. They’re talking about restarting the, or accelerating the restarting of the Newton, Iowa factory, um, specifically to meet the demand for GE

Joel Saxum: Renova. Oh, that’s cool. I mean, ge like the, the article you said today, Alan Scott Straza said a softening of the market there, but they still have order book.

They still gotta create a lot of blades. I mean. They’re we’re, we’re, we’re built. Just think about the Sun Zia project. They’ve got hundreds of turbines just for that one project that they’ve gotta build. So, uh, yeah, I think maybe the TPI thing in my mind about why I thought it would be a bigger market share is just because a lot of the projects that, uh, that Alan, you and I, or our compadres in the industry work on.

I have TPI blades in ’em. So maybe that’s just why my mind was going that way.

Allen Hall: Well, and our friends at Vestas have opened up another presence in the United States. They opened some offices in Houston, Texas to much a great fanfare. Uh, they used to have an office in Houston years ago, as Phil has pointed out before we started recording today.

Uh, but they’re back at it and it looks like they’re trying to get more of a foothold into the United States. They have about. 500 employees in Texas at the minute, but it does seem a lot of the manufacturing and production is coming out of Colorado. And obviously as Joel pointed out, you know, sun Z is a big project that Vestas is also involved with.

Uh, so what does the growth outlook look like for Vestas and why the move right

Joel Saxum: now? I, I don’t know what the growth outlook looks like, but I do know that being a person who lived in Houston and works and plays there still. There’s so many good engineers in Houston, and it’s not just mechanical electrical engineers.

It’s every sort of engineer you can imagine, and a lot of it from that oil and gas world, right? So Houston as the. Energy capital of the world for oil and gas. Now that city is starting to rebrand itself as the energy transition capital of the world. They’re all the trade organizations are trying to do this.

They’re grabbing people at oil and gas to be engineers. So there’s a lot of really good, smart people that understand the energy industry in Houston. If you’re gonna put an office in the United States and as a wind company, it’s a good place to be or or to do an event. Uh, this week’s wind farm of the week is the Jericho Rise Wind Farm.

It’s an EDPR wind farm and it’s really close to the Canadian border, so it’s up in the northern part of New York state. And we’ll do a little bit of a wind farm, uh, by the numbers this week for the wind farm of the week. So, uh, this wind farm 37 S-G-R-E-G 1 14 2 0.1 megawatt machines, uh, that creates a total of 77.

Point seven megawatts, uh, coming outta this wind farm. But the scope of work for some of the build out was, is kind of interesting. 55, 50 5,000 linear feet of access. Roads, 175,000 tons of sub based placed for roads and pads, 3.6 million pounds of rebar. Procured and installed for foundations. 23,300 cubic yards of concrete.

Procured and installed 60,000 cubic yards of backfill, a hundred acres of trees. Uh, $132 million. Went into this wind farm with, uh, 76 construction jobs and six jobs created locally. So it gives you a little bit of the scale of what it takes to. Build one of these wind farms, uh, and this is 37 turbines, right?

We’re seeing wind farms a hundred, a hundred fifty, two hundred, three hundred, even more than that for wind turbine numbers. So the, the size and scale of these things is, is growing and growing. So Jericho Rise Wind Farm, up at upstate New York by the Canadian border from EDPR, you are the Wind Farm of the week.

And that’s gonna

Allen Hall: do it for this week’s Uptime with Energy podcast. Thanks for listening. Give us a five star rating on your podcast platform and subscribe it in the show notes below to Uptime, tech News or Substack Newsletter. And if you haven’t joined us on YouTube yet, we’re getting close to a million subscribers.

So you. Better click in there before we cross that magic number. We have to have some sort of giveaway at a million if we can figure out who that person is. That would be kind of cool. So we’ll see you here next week on the Uptime Wind Energy Podcast.

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Pardalote Studies Australian Blade Erosion and Heat Fatigue

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Pardalote Studies Australian Blade Erosion and Heat Fatigue

Rosemary Barnes, CEO and founder of Pardalote Consulting, joins to discuss their new grant-funded study of blade erosion and heat fatigue in Australia.

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 YouTubeLinkedin 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 2025: Well, Rosemary, welcome back to the show.

Rosemary Barnes: Thanks, Allen. Great to be here. For, it’s been a while since we did one of these one-on-one episodes, like a, yeah, a proper, proper guest. 

Allen Hall 2025: Well, this is kind of a celebratory episode because your company, Pardalote Consulting, has been awarded, uh, some funding from the Australian Capital Territory’s government for the Energy Innovation Fund.

Rosemary Barnes: It’s a really good program that the ACT government has to try and get energy innovation In the state. It’s not a state actually, it’s technically a territory. Little more than just Canberra, the city. Uh, but there are actually quite a few, like, really interesting energy-related companies here, partly ’cause of the, the fund I think helps, but also just tracing back like, [00:01:00] uh, y- you know, in the 20-teens, Australia had a really conservative government that hated renewable energy, and the ACT government had a commitment at that time to 100%, um, 100% renewable electricity for the, the government.

And that was one of the only programs that was resulting in a lot of, um, you know, clean energy projects being built, and one of the conditions that they put on that, uh, for people that would win PPAs with the ACT was that you had to have your headquarters in Canberra. So we’ve actually got quite a few, quite a few really cool, innovative companies out of here.

Um, like Neoen’s headquarters here. Windlab, uh, yeah, was, was founded here and still has a lot of people here. Pardalote obviously, and you know, a few other companies as well. So despite it being a small city of like, I don’t know, maybe it’s up to 400,000 or something people by now, um, yeah, there is actually quite a lot going on here for energy.

Allen Hall 2025: And the Energy Innovation Fund is funded by the wind and solar operators in the area, and your particular [00:02:00] effort has really global consequences. You’re focusing on two areas involving how wind turbines survive Australia, but more, uh, of relevance is to just really tough conditions which exist not just in Australia but around the world.

What two areas are you going to focus on?

Rosemary Barnes: Yeah. So the two focus areas are leading edge erosion and high temperature fatigue, which we can probably get into the definitions of those in a minute. But basically my, um– what led me to wanna have a project like this was that when I moved back to Australia in 2021, I– and I started working in O&M, uh, I noticed that the wind turbines that I would look at, the blades that I would look at here behaved really differently to the ones that I worked with overseas.

You know, es- especially with leading edge erosion, like often I would be doing a condition assessment of a, you know, a new wind farm. Um, might only have been operating for, you know, two years. That’s a pretty common time for people to get in and do a condition assessment [00:03:00] because their warranty period is about to end and they wanna, you know, make sure that everything is okay.

Um, and I would just notice that often, like 90, 100% of blades would already have bad erosion after just a couple of years, which is super-duper fast. And then there are some tools available to check, um, like what kind of erosion are you likely to experience on your site. Like is it a higher severity erosion site or a, a low severity one?

Um, and you basically, you know, the status quo globally is to just look at the annual rainfall, um, and the tip speed. And if you’ve got, you know, high for both of those, that’s a bad erosion site. And if you’ve got low for both of those, it’s a, a low erosion site. But when I plotted out the wind farms that I knew had really bad erosion problems onto, you know, a chart with those two axes, I just saw a random distribution of dots.

You know? Like, this was not– uh, this had no predictive value for Australian wind farms. And so that led me to believe that, okay, um, you know, things are a bit [00:04:00] different here. Makes sense, you know, most of the knowledge that we have about how wind turbines operate, it’s been developed and validated mostly in Northern Europe.

You know? Like it’s, it’s Denmark and the surrounding countries that had, like, the bulk of the early wind energy. First few decades of knowledge were, you know, were mostly there. Of course, there were some other, um, places that had wind turbines, but, you know, most of the The OEMs have been operating for decades, came from Denmark.

And I know when I lived in Denmark, the rain there is very different to the rain in Australia. So in Denmark, it’s basically always raining, right? Like, it’s just… Like, even if it’s not raining, you’re still gonna get wet when you go outside ’cause it’s just, like, the air has this just amazing ability to just hold onto moisture.

Um, but it’s very, very gentle. But, you know, over an entire year of most days having gentle rain, that adds up to a lot. Whereas in Australia, and especially if you go, like, north to Queensland, it rarely rains. It’s mostly just dry, and when it [00:05:00] does rain, it’s like a tap turns on, and I, I swear you will get bruised from the rain droplets hitting your skin.

You know, they just have so much energy in them. So I think that that i- you know, when you look at just the overall rainfall, you really hide something important about how erosion, um, can progress. Then, um, there’s other places in Australia that have very different characteristics. Again, they don’t have that kind of really intense rain but, you know, some of those sites are also having really bad erosion.

And so it just occurred to me, I did a lot of research, you know, into what’s going on and, you know, the academics are studying erosion a whole lot, and they’ve got, you know, a lot of standardized tests and, you know, products are developed according to these standardized tests. But the standardized tests don’t actually resemble reality, and especially they don’t resemble reality in Australia.

And so my client started asking me, “Okay, you know, the products that we have are, are terrible. We have to replace them every couple of years. It’s, um, causing big problems with also [00:06:00] the amount of energy that you’re losing.” One of the types of, um, leading-edge erosion or leading-edge problems that we have in Australia is that the, the coatings tend to peel off and make these, like, big flakes which will just massively disrupt the airflow, can cause y- you know, at least a few percent AEP loss, and maybe up to five.

And even worse than the AEP loss is the revenue loss because it affects it most at, you know, lower wind speeds. Um, you get a bigger hit than at rated wind speeds. So there’s a variety of problems going on with leading edges in Australia, which mean that I, I basically… My clients would ask, “What product should we put on to prevent having to, you know, constantly replace this?”

‘Cause it costs, like- you know, 30, $40,000 per turbine to replace the protection, not to mention, you know, one or two days of downtime. It’s expensive, and I basically, I didn’t have a good answer for them. What, what product should they put on? I don’t know. No, we, we don’t know. One, we don’t know what the [00:07:00] specific, um, characteristics are that are…

what the specific local environment, local conditions are that are accelerating leading-edge erosion, one. And two, all of the products tend to be tested around this, you know, there’s this protocol that academics have come up with, and they’ve kind of like assumed that this is representative of how things behave in the field, and it’s– I don’t think it’s particularly true anyway, but it’s especially not true in Australia.

There are a few companies that are testing to different standards. Um, definitely applaud them. But without knowing wha- what are the conditions truly like in Australia, uh, it’s really hard to advise, like, what kind of tests should you be demanding from a product you’re considering to be sure that you’re gonna put it on and not gonna be replacing it again in two years.

Allen Hall 2025: Because that’s really the trouble in Australia is when you get offered products They have been tested generally in somewhere in Europe and maybe in the United States, and then when they go to [00:08:00] Australia, it’s really unknown as to how those products will do, which is a huge risk for the Australian wind market as to what to choose, how to choose, is it– what’s real in terms of test data.

So now you’re gonna go out and do what? Are you gonna put sensors out by the wind farms? Are you gonna try to do more of a statistical summary of the actual environment around wind farms using existing data? What’s the approach here?

Rosemary Barnes: It’s all of the above, but the part that is supported by the grant is that we’re gonna have enough money to be able to buy some scientific-grade sensors and put them on, um, a sample of Australian wind farms.

So we’re gonna be looking at a lot more characteristics about the rain than simply is it raining now, you know, how many millimeters per hour. We’re also gonna be investigating, you know, every kind of characteristic of, of that, um, of that rain, um, including, yeah, like the, the energy that’s in it, for example.

A, a bunch of stuff. I won’t get into every single [00:09:00] parameter. Um, and you know, other things as well, like measuring UV, solar radiation, um, particles, because, you know, in Australia we have a lot of dirt roads, which I know is very common in wind farms around the world, but Australian dirt roa- roads are always dry and dusty, like 99% of the time, so that’s one of the things that y- you know, maybe that’s causing a difference.

Um, so basically putting sensors all over a bunch of wind turbines and then monitoring the erosion, um, a combination of some real-time monitoring and also looking at inspection, um, drone inspection images annually. We also have a- an option where we’ll just be using SCADA data and inspection images, so that’s like a lower cost version where we can combine that with the findings from the scientific-grade instrumented turbines to build up a picture of what types of conditions lead to accelerated erosion.[00:10:00]

Allen Hall 2025: So the SCADA data will, will have some information inside of it, you think, that, uh, will correlate to the weather outside?

Rosemary Barnes: It has some Additionally, we can look up, um, you know, just the weather data, like how many millimeters fell during which 15-minute interval throughout the day, what was the temperature.

SCADA will tell us also what the temperature was, um, what the speed of the turbine was, so you can calculate the tip speed, ’cause that’s an important thing. Um, yeah, so it’s, it’s two, it’s two tiers of data collection. The scientific grade sensors, as you can imagine, are, are really expensive and y- you know, the, the grant project has contributed a, a lot of funding, um, but it’s not enough to put those, yeah, put a little mini lab on top of every turbine across Australia, obviously.

So that we’re using s- doing selectively, and then we can increase the number of wind farms that are included in the study by just doing this, um, cheaper version of the SCADA [00:11:00] plus, uh, weather data that’s available.

Allen Hall 2025: So what are some of the risks on the temperature side for all the high-temperature regions of Australia that have wind turbines?

Clearly it’s generally warmer in Australia than it is in, in Scandinavia and Northern Europe. What kind of temperatures are we talking about on the ground?

Rosemary Barnes: Uh, well, temperatures here can get pretty close to 50 degrees. Um, and if you’ve ever been inside a wind turbine blade on a, even a mildly hot day, you’ll know that the temperature inside a wind turbine, and especially inside the blade, is much hotter than what it is, uh, what the ambient temperature is.

So this project is one– I’ve actually been talking about this project for, yeah, like over 10 years now. Ever since I started, I moved to Denmark, started working for a wind turbine manufacturer, I had done– I had just finished doing my PhD on composite materials, structural design, and analysis. So, um, yeah, very, very familiar with, [00:12:00] you know, how composite materials work and, in particular, the effect that temperature has on them.

I mean, like most materials, when composites get warmer, they get softer, and that is really important for a w- a wind turbine blade. You know, if it gets, um, less stiff, then you’re gonna get a lot more strain, and that is going to affect your fatigue behavior. Y- you know, fatigue is just the application of a little bit of, a small amount of strain.

It’s not gonna cause damage, but when you apply it millions, tens of millions of times, like you do in a, o- over a wind turbine’s operate, um, operating lifetime, then that builds up. And, you know, wind turbine blades are a very fatigue-driven design. Um, it’s one of the most important things to consider when you’re designing a wind turbine blade.

And so when I got to Denmark and I learned how materials are qualified and how the qualification is treated in the certification process, I just realized it’s not particularly conservative, and also that some of the assumptions that are made that [00:13:00] wo- again, they worked really well in more moderate climates where wind turbines have had most of their developmental history.

You know, it’s not such a big deal there if you test at room temperature. Your wind turbine blade is spending most of its operating lifetime at room temperature or below. It’s, it’s rarely, you know, above 30 degrees in Denmark and most of Northern Europe and, you know, also a lot of, um, a lot of America, not, not all of it But, um, in Australia it has just extended periods above that temperature and even exceeding the temperature where, you know, wind turbines have an operating limit and after that they will shut down.

But the operating limits are based on ambient temperature. It’s not based on what’s the temperature in the laminate, which is what really matters for blade lifetime. So anyway, I’ve been obsessed, like honestly obsessed about this issue for 10 years. Talked about it with anybody who would listen . But then when I started working in O&M in [00:14:00] Australia and I started seeing some wind farms with an abnormal number of cracks early…

again, early in their lifetime, you know, I think one of the wind farms I was looking at was maybe three years old or four at the time. I think it was three actually, and had a lot of cracks, and I looked at a few years in a row and it was more and more cracks every year and I’m like, “Oof, this really looks like end of life fatigue behavior.”

A- actually it’s not, y- you know, there’s this concept of a bathtub curve where, um, when you’re looking at failures in components, in, in anything, not just in, um, wind turbine blades, but you know, like you’d start– it’s called a bathtub because, you know, when it starts operating, you’ll get quite a lot of failures.

Anything big, any manufacturing defects or anything are gonna cause failures quite fast, and that kind of drops off over time as all of those, uh, get addressed. And then you have, you know, the bulk of your operating life, it’s like pretty low level, pretty, pretty constant for a long time and then as you get towards the end of the [00:15:00] life, you start to see failure rates rise up again.

That’s your fatigue failures, your end of life fatigue failures. And so when I saw the same types of cracks more and more each year, I’m like, “This looks like, you know, the foot end of the bathtub, not the head end.” And, uh, it made me worried and I’ve now seen that across a few wind farms in Australia at, um, hotter places.

There’s a few blade types that are more prone to it than others, but at this point it’s still a suspicion that that’s what’s going on. I mean, a suspicion backed by a lot of, a lot of theory and knowledge of how the certification process works. But this project now we’ve got some funding to actually go put some sensors onto wind turbines, actually learn what the temperatures are in the blades throughout the whole laminate, um, not just the, you know, on the outside surface or not just the ambient temperature, but actually, you know, develop a temperature gradient across the whole, um, the whole laminate in the blade shell.

Um, and [00:16:00] then we’re going to be doing a bunch of modeling basically to look at what is the effect of these different temperatures that blades are really seeing and how much would we expect to… that to decrease a lifetime. And then we should also be able to say, you know, if you have this issue in your wind farm, you might be able to change your operation a little bit and extend your lifetime a lot.

Because this one, it’s real– like, in contrast to leading edge erosion, leading edge erosion is just, it’s, you know, every wind turbine has it to a certain extent, and it, it’s always there, but it’s a relatively minor cost to fix it. You know, like it sounds like a lot, like 30, $40,000 per wind turbine, but, um, you know, compared to if you’ve got to replace every blade across your fleet because they’re all, you know, at the end of their life after five years, you know, that’s obviously shocking.

And, you know, that’s a bad example, but even in a y- you know, like a less extreme example, maybe [00:17:00] after 15 years you have to do a, you know, a f- a fleet-wide campaign to strengthen blades or something. It’s, you know, m- many millions of dollars for that, and so it c- could make sense to be able to learn, okay, what, what hours of operation should we be avoiding?

Additionally, because when it’s super-duper hot in Australia, usually you’ve got heaps of solar power and the electricity price is not that high. So I, I think that there– and I don’t, obviously, before we’ve done the project, I don’t know what the threshold is. But in both cases, we will be aiming to improve the knowledge of how you can operate to avoid these periods of accelerated damage.

Allen Hall 2025: Do you think you’re seeing more fatigue-like damage due to the blades operating when it’s hot or not operating when it’s hot, with maybe less airflow around the blade and maybe less cooling going on is just a temperature soak At rest? [00:18:00]

Rosemary Barnes: Yeah. It’s interesting because the temperature is higher if it’s not rotating, um, because you get a whole lot of, um, convective heat, heat transfer when the turbine is operating.

So your temperatures are not gonna get as hot when operating as when they’re standing still. However, if it’s standing still, they’re only very lightly loaded. Like, yes, they’re gonna get, um, blown by, by gusts and, um, have a little bit of bending, but it’s, it’s very, very small compared to, uh, if it is y- you know, operational loads.

Uh, assuming that you’re not in the middle of a s- a storm. But yeah, a storm probably doesn’t come with 50 degrees temperatures.

Allen Hall 2025: And what part of the blade is susceptible to these higher temperatures? Is it the resin? Is it the fiberglass or carbon fiber? Or is it the, the glue, the bond joints? What part are you focused on?

Rosemary Barnes: The resin is the main part that I’m focused on. It gl- it could be an issue for glue too, actually. I haven’t even looked into what the, um, yeah, temperature assumptions are with, with glue, with [00:19:00] bond lines. But the failures that I’m seeing in the field are not, are not bond line issues. It’s, it’s, um, a laminate problem.

Allen Hall 2025: What about balsa and foam inside of the blade? Are they affected by the temperatures or are they pretty temperature stable?

Rosemary Barnes: I don’t think they’re affected at these kinds of temperatures, no. They, they don’t really do much actually. The, the core materials, like it, it is very important that they’re, that they’re there, but their job is really to keep the fiberglass separated from its- itself to make it stiffer.

So, um, yeah, that’s, that’s unlikely to be a, a major source of problems.

Allen Hall 2025: So this study is gonna work over about three years, and you have a number of wind farms that are participating. Are you looking for more wind farms to participate in Australia?

Rosemary Barnes: Yeah. Yeah, definitely. I mean, we can, um, have as many as, as people want to join.

We’ve got quite a good selection so far. Definitely can always welcome more. A, a bit limited in how many can get the really, um, good sensor [00:20:00]package, because the grant funding is a, you know, a certain amount, and that’s paying the bulk of those sensors. So, um, those spots are limited. So if anybody wants to really zone in on what is specifically causing erosion on their site, you know, if you know that you have got leading edge protection that is not good enough and you have to replace it soon, but you don’t know what to replace it with, then, you know, that would be the kind of wind farm that might want to consider, yeah, joining this and, um, you know, getting these sensors on their, um…

We’re putting them on top of the nacelles, most of them. Um, yeah, so that would be a good match then. Um, and then, yeah, for the ones that are doing the SCADA data and, um, weather data- There’s not such a, a hard limit on how many we can have join like that. So yeah, we can have more, more like that.

Allen Hall 2025: In the temperature fatigue effort, i- is that still looking for participants or are there particular wind turbine types or manufacturers that you’re [00:21:00] looking for to participate?

Rosemary Barnes: Yeah, I think, um, I, I mean yes, we can have more of those. That’s a simpler, a, a simpler issue as well. The sensors are not so expensive and, um, it’s, yeah, it’s a, it’s a simpler project to join that one. We only need, you know, a couple of turbines per site, so it won’t be such a, uh, an involved process to get everything up on into the turbines.

And in terms of who might like to join that, I would say anybody that is in a really hot area where, you know, where they see a lot of days over 30 degrees, and if they see any days, you know, getting into the high 40s, then I would say that that’s worthwhile. Or even I have seen this issue in some milder sites, um, yeah, depending on the, on the blade type as well.

It is more common with polyester resins. They have a, a lower op- uh, maximum operating temperature than epoxy resins. But then also just anybody that has noticed just, hey, [00:22:00] we’ve got a lot of cracks, and it seems like we’re getting more and more cracks every year, which to be honest, can be hard to keep track of if you’re…

If you’ve got a full service agreement, uh, you know, an OEM managing your wind farm The early signs of this are gonna be category one and category two cracks. They’re not in exactly the same location. It’s, you know, it’s a tricky one. Normally, if you’re looking at a serial issue, then you’re going to have, uh, well, you know, your ideal pattern for a serial issue is the exact same thing happening over and over again.

And so it is harder to pull this out. It also really would be very rare for it to be happening in the first two years or three years, whatever your serial defect liability period is. So it’s quite hard. But, um, another group of wind farms that might like to consider it is if you know that in, you know, a certain number of years you have to renegotiate your service agreement or, you know, it ends and you might have to take over yourself, then this’ll be a really good way for you to [00:23:00] understand, you know, have I got a ticking time bomb here?

Um, because it’s not something that you’re gonna be aware of if you haven’t been, you know, doing some really, really in-depth shadow, shadow monitoring of your blades, you know, running your own inspections and looking at every single damage, not just category three, four, five, but lower ones. So yeah, I mean, there’s a, a wide variety of people that, that could be interested in joining.

Allen Hall 2025: Are you expecting a number of manufacturers that make leading-edge protection or involved in resin creation, some– there’s a number of resin companies and a variety of resins that are used globally, sort of interchangeably at times. Are you expecting some of those companies to participate in this effort just to learn about the Australian environment?

Rosemary Barnes: I think it would be a good opportunity to test out some products and see how they behave in the Australian context. I think that that would be a really good selling point, but I, I have to say that most of the companies doing that sort of thing that wanna enter Australia, they don’t [00:24:00] really consider…

Like, from the perspective of wind farm owners in Australia, if you can’t show us wind farms in Australia where this has worked and, you know, show us a before or after, you know, the old LEP lasted Two years and our LEP is going on four years now with no damage. It, you know, unless you’ve got a before and after like that, you can tell us however many turbines that you’ve got installed around the world, but, um, we don’t consider it validated, y- you know?

It’s not validated for Australian conditions yet. And I do have this same discussion over and over again with, you know, not just leading edge protection, but all kinds of, um, you know, manufacturers of whatever doodads that you put on to improve a, a wind turbine. It’s so different to Australia. Things break so fast.

And I’m talking everything, you know, like vortex generators fall off and, um, yeah, like, uh, you know, bits of lightning protection systems fall off, seals just [00:25:00] crumble and disintegrate. Um, and it, you know, we’re very wary of, of new products. So I, I do– I mean, I’m thinking of it more from my client’s point of view than from the product manufacturer’s point of view.

But one thing that I wanna get out of this pro- project is to be able to answer one of the most common questions that I get is, which is, what leading edge protection should I be putting on my turbine? And for now, I don’t know. I, I know a range of products that don’t work in Australia, and not much more than that.

So, um, yeah. And it’s also, you know, Australia’s a very varied place with lots of different kinds of climate too. So it’s not gonna be like, you know, the product that works in Queensland is the same one that’s gonna work in Tasmania, which is the same one that’s gonna work in Western Australia. You know, um, so it, this project is gonna really pull out what are the site specific issues you’ve got at your site and what kinds of, um, you know, tests would we need to see a product um, perform in order to know that this [00:26:00] is gonna last on your site.

Allen Hall 2025: W- what is the outcome of this project or these two projects? Are they gonna be reports or, uh, a, a continual monitoring system that’s designed for the Australian environment? How do you see this going?

Rosemary Barnes: Yeah, so one part of it is, um, developing a way to identify periods of accelerated damage and to know not to operate during that time.

So we call it protective operation. Uh, so that would, uh, help you if, yeah, you’re trying to extend the life of something or increase the amount of time before you have to repair, then y- you know, that would be useful to have that knowledge. And it will be as simple as just an alert saying, “Hey, accelerated damage conditions.

Consider, you know, if you wanna keep on operating.” And, you know, if the price of electricity is super high at that time, they may want to push through, and if it’s low, they probably won’t want to. So that’s one thing. Um, especially, you know, as wind turbines get to their, near the end of their life. I’ve got some clients whose wind farms only have, you know, [00:27:00] maybe five years operation left.

They just simply don’t wanna repair their leading edge protection again. They just, they, they don’t wanna do that. So they would be happy to, you know, reduce operation a bit and have their turbine limp through to the end of the period. Y- you know, you want everything to wear out at once. You don’t want brand-new leading edge protection on a turbine that’s going to come down in a couple of years.

Um, so, you know, that’s, that’s one part of it. And then the other thing is, you know, turbines earlier in their lifetime, how can we optimize the maintenance schedule with leading edge erosion? Um, so, you know, like it’s a lot cheaper to, uh, replace the LEP if you get– catch it early, but then you don’t wanna be catching it too early and replacing it, you know, constantly when you, you don’t need to.

So, um, yeah, it, this, having this knowledge will enable a site-by-site operations and maintenance strategy with respect to leading edge protection. We also have some sites who are having trouble. They’ve got a full service agreement, and the OEM is [00:28:00] responsible for, um, doing the leading edge erosion repairs and protection replacement, but the owner is on the hook for paying for it.

At the other end, we’ve got people with full service agreements where technically the, um, manufacturer is supposed to be doing the leading edge protection and paying for it, but they argue about what, when does it need to be done. Because, you know, um, the operator might think if there’s no structural risk, then we don’t need to be replacing it.

And in the meantime, you’ve got turbines spinning around for years and years and years with, you know, these huge flakes of leading edge protection s- you know, causing the flow at the tip of the turbine to, to detach and to stall, and horrible aerodynamics, huge losses in power generation and revenue. And they’re having a big fight about, you know, is this necessary to do or not?

And then, you know, they’re just gonna put the exact same product on again ’cause the [00:29:00] OEMs are re- all really, really wedded to their own particular brand. It’s like, “Well, last time we had this product and it was factory applied, it lasted one year before it s- it was worse than, you know, if it wasn’t there at all.

Uh, we don’t really want you to put that one on again.” And so, you know, having the information that they need to be able to, you know, really bring data to these discussions and, you know, makes a, yeah, data not drama. That’s a, a good approach I think, um, for any kind of negotiation and especially in the case of leading edge erosion.

And then for the high temperature fatigue part of the problem, aside from, you know, just wanting to know are your blades aging, should you be looking at remediation action or changing the operation, the other really big key thing is, uh, you might need to have a fight with y- your OEM about if this turbine has been designed and operated correctly.

And so then having the data from this, um, project is going to give you the information that you need to come into that [00:30:00] argument with, again, the data not the drama. Um, and to, you know, in- increase your chances of succeeding in that kind of really tricky negotiation.

Allen Hall 2025: So if you’re an OEM or a manufacturer of equipment, an ISP, an operator, pretty much all aspects of wind operations, you probably ought to be getting a hold of Pardalote Consulting and Rosemary to talk about the opportunity to participate in this study.

How do people get ahold of you to, to do that?

Rosemary Barnes: People can go to our website, pardaloteconsulting.com, and get in touch via the contact form there, or you can, uh, look me up on LinkedIn, Rosemary Barnes. That’s probably the easiest, fastest way to get ahold of me personally.

Allen Hall 2025: Well, Rosemary, congratulations on the Energy Innovation Fund Awards and the new three-year effort.

If you are interested in participating with Pardalote Consulting and working with Rosemary and her team [00:31:00] in Australia, reach out to her on LinkedIn and get that process started, because this report and the data from all this analysis that’ll happen over the next couple of years will be important to the wind industry.

So you need to spend some time and get ahold of Rosemary and get this process started now. So Rosemary, congratulations. Uh, thanks for being back on the podcast, and looking forward to, uh, the next couple of years. It sh- should be exciting.

Rosemary Barnes: Thanks so much, Allen.

Pardalote Studies Australian Blade Erosion and Heat Fatigue

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Renewable Energy

Artificial Stupidity?

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We all understand that there are ultra-conservatives living all around us, but does anyone truly believe that our schoolteachers are ruining our society by teaching children the truth about U.S. and world history? Science? Current events?

Slavery and Jim Crow laws were bad.  Fascism is bad.  Our scientists are telling us that CO2 emissions are causing world temperatures to rise, destroying our planet’s capacity to support life.

Whom do these concepts upset?

Artificial Stupidity?

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Renewable Energy

No Such Thing as a “Dumb Question”

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on

There is nothing dumb about the question posed at left.  Democracies fail, falling into “banana republics” constantly.  The rate at which democracies become tyrannies is so great that some of them never make the news. Can you tell me anything about the governments of Eritrea or Chad?

What makes the situation in the United States is, yes, that it’s happening here in the United States, the very last place anyone would have suspected it.

You might have thought that Americans wouldn’t have voted for their nation to become Russia or North Korea.

You would have been wrong.

No Such Thing as a “Dumb Question”

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