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Offshore Vessel Collision, 1.2 GW Farm in South Australia

In this episode, we discuss an offshore vessel collision in the North Sea, highlight Louisiana’s offshore wind ambitions, the latest developments in South Australia’s renewable energy expansion. Plus we highlight an article from Buoyant Works in PES Wind Magazine. Register for the upcoming SkySpecs’ webinar on turbine repair challenges!

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 Wednesday, April 30th at 11:00 AM Eastern, get that on your calendar. SkySpecs, Uptime and PES Wind are hosting our next session of a 10 part series of wind related items on their webinar. So this time it’s gonna be about the the biggest challenges facing turbine repair teams today. And we’re gonna have four experts besides Joel and me.

I guess we don’t count as experts, Joel. So we’re gonna be talking to real experts. Sheryl Weinstein from Sky Specs, Alice Lyon from Lyon Technical Access. Craig Guthrie, who I’ve known forever from Takkion, and Jose Mejia Rodriguez from RNWBL. We’ll be there to, uh, explain how you should be planning for this repair season.

What are some of the approaches that the operators use and what works and what doesn’t work? Things that if you’re in the repair business or if you work. For a large, uh, operator or even a small operator you want to hear and participate in, there’ll be a q and a session. So get all your questions ready, but [00:01:00] you first have to register and you can register in the link and the show notes below.

Do not miss this event. April 30th, 11:00 AM Eastern. You won’t wanna miss it.

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: Up in the Netherlands, three crew members were injured when an offshore support vessel struck a windman foundation. In the North Sea and the Royal Dutch Sea Rescue Society had to evacuate two of the injured crew members from the privately owned vessel. And a third uh, crew member went to get medical attention once they got back to port.

Now, this occurred about 15 miles from the Netherlands shores, and the Dutch have opened an [00:02:00] investigation, and my first responses to reading this news was. How are we driving ships into foundations still? And Joel, can you explain all the technology that is there to prevent you from doing this?

Joel Saxum: Well, every one of these vessels that operates in that environment is going to have a, a helm display, right?

That’s gonna have all of the things called stent and aids to navigation. So it’s gonna have all the buoys, everything in the water that you could possibly run into. Some of ’em even have detailed stuff like pipeline data and stuff so you don’t drop your anchors in certain places. But either way, they’re gonna ha they’re gonna have knowledge of this besides the fact that you can look out the window and see the tur, see a turbine that’s 500 feet tall in front of you.

That’s a different story maybe. Um, but a lot of these vessels too, of this size. So this is a, um, a support vessel offshore. So there’s all kinds of different classes of boats, things they do. But this thing may work in a wind farm. It may work for oil, uh, platforms, it may work for the fishing industries.

Like it can do a lot of different stuff. But as a, as a [00:03:00] emergency response. Uh, vehicle. They also should be DP one. And when I say DP one, that’s dynamic positioning. So that means that you should be able to have a button in the, in the vessel that says, boom, hold me here. And, uh, DP one means you just have one methodology of, of positioning.

So that’s like GPS. I’m at this GPS point. Hold me at this GPS point. Um, so there’s a lot of safety mechanisms built into these things, and there’s a chain of command and all these vessels. I think it said it was crude by eight people. Correct? Correct me if I’m wrong, Alan. That sounds about right. For a hundred, 150, 150 foot operating vessel, eight people’s.

About right now, everybody has their own job, right? There’s a captain, but there’s usually this, you know, a second mate and there’s other people on the vessel that someone at all times is looking forward or is supposed to be at least. Uh, but like Phil said earlier today, when we were kind of doing some podcast planning, if you saw the pictures of this thing in port, it looked like it ran square on into the turbine headfirst.

I

Allen Hall: think it was the, uh, [00:04:00] mechanical error or where an operator error just from the damaged photos. I think it’s

Joel Saxum: operator error. I think that’s someone not chain of command, not paying attention

Phil Totaro: somehow. Well, it’s just one of those, the, you know, unfortunate and frankly frustrating things that, and this is, I believe in the last five or six years, the.

Sixth vessel that’s run into something like a foundation under construction or an operating wind turbine or something out there. Um, I mean it’s happened in Germany and, and now. Here in, in Holland with the, with the Holland Coast, uh, three and four project is my understanding Vattenfall project out there, um, with the Siemens 11 megawatt turbines.

So it’s unfortunate that this keeps going down, but I don’t know what I mean. To Joel’s point, I don’t know what more. You could do with technology to warn you that something’s out there. ’cause in addition to everything that Joel mentioned, we [00:05:00] also know where the wind turbines are located. There’s, there’s geo coordinates for all the turbines in the wind farms and there’s theoretically some kind of geofencing around the wind farm that tells you, Hey, by the way, you’re entering this zone.

Which I mean, as an SOV, presumably you’re supposed to be kind of nearby, but. I just don’t like, I don’t know. I mean, this isn’t a technological problem to, to me this is, this keeps sounding like human error. What’s the next step?

Joel Saxum: Phil is the next step. We put like a, we put radar on the transition piece with like an audible alarm.

Like when something gets within 500 meters, it just goes. I don’t know what else you can do. I mean, they can’t see

Phil Totaro: him apparently, so they gotta hear him. Maybe. I don’t know. Well, to be clear too, I don’t think this was like, uh, you know, a situation where they had fog and or some other kind of obstructed vision.

It was a, to my understanding, it was a reasonably clear day. So I just don’t understand how that’s gotta be some level of human failure, how you [00:06:00] just smash into a thing that’s that big, uh, you know, right in front of you. It’s

Joel Saxum: like fog being one thing or like pours visibility. But I’m looking at the picture of this vessel and this vessel has.

A radar on it. It has its own radar, so it’s gonna pick it up on the screen next. So no matter what, you should have either been able to look out the window or look at the screen and see the thing in front of you, or look at the GPS coordinates of the, the, you know, problems

Phil Totaro: out there. So, I, I don’t know to, to answer Joel’s question, I don’t think we need more technology, uh, because even though you could, you know, avail yourself of, of radar on every vessel, I mean.

Those that gets expensive and somebody’s gotta pay for it. And guess who ends up paying for it? Is, you know, the vessel operator ups their contract. The, you know, project developer has to increase the overall cost of the project and then it takes them longer to, to. Get paid back with the the PPA and or CFDs or whatever other mechanism they have, [00:07:00] and we as electricity rate payers are the ones that end up paying for that at the end of the day.

So I don’t, you know, if this is something that can be solved without. Additional technology upgrades. I’m kind of all for that, but something needs to be done as far as like, Hey, there’s a big thing like, you know, a few hundred yards right in front of you. Try not to hit it. You know,

Allen Hall: speaking of not running into wind turbine foundations, there’s actually an article in PES win, and if you haven’t downloaded the latest addition of PES Wind, you can do that on your own@pswin.com.

You just type it into the old Google and. Push the button and there it is. Now, there’s a lot of great articles in this quarter’s edition and a good bit of offshore in it. The article I wanna highlight today is from Buoyant Works, and if you’ve been to the Buoyant Works website, you can see all this sort of the polyurethane bumpers that they have created for not only the.

The towers, but also the CTVs, which is really important because they [00:08:00] do run into one another once in a while and it has become more of an issue is that, uh, there’s damage on some of these vessels. And just trying to minimize the, the complexity of trying to get close to a turbine without damaging it is, is a huge problem.

And if you have read the article here, and I encourage you to do that on your own. There’s a lot going on, uh, as these CTVs approach these turbines and just trying to avoid damage and trying to keep from having bump incidences where the, the crew gets rocked is important here. And Joel, as you have pointed out many times, safety is of the utmost here, uh, on these crew transfer vehicles.

Joel Saxum: Yeah. If you haven’t been offshore, there’s something to understand, uh, in operations that maybe most people don’t. So if you’re seeing, like if you’re at a boat ramp at, at the, your local lake or river and you see a boat go back off a trailer, they usually kinda like throttle down and sit there and they’re waiting for people or whatever.

When you’re [00:09:00] in a marine environment, when you’re dealing with big vessels and you’re doing any kind of operations, whether it’s pile driving, rock lay, or whatever it may be. That vessel is almost always throttled up. You’re a, you’re at a certain amount of throttle all the time because that’s how you’re able to hold position.

So it’s the same thing when A CTV approaches a, a, a transition piece or a wind turbine, they nudge up against where the ladder is and there’s mechanisms designed there, engineering mechanisms, and that’s what. Uh, they do here at Buoyant. Uh, there’s their Buoyant works all of their different systems to make sure they slip, but they put that boat right against the transition piece and they throttle it up to hold it there.

So it’s nice and steady. But when you’re in the North Sea or somewhere offshore and you got two three meter heaves going on, you’ve gotta be able to. Efficiently slide up and down that transition piece while you’re throttled up. And that’s what their, uh, their systems allow people to do safely. ’cause if you’re not doing that safely, the boat starts to pinch and move and squeak and it get, get hung up or held.

You can’t have that, otherwise you can’t transfer. Um, [00:10:00] so these, uh, what, what you looking at here is, oh, this is cool offenders. No, they actually are the things that allow us to safely transfer people offshore.

Allen Hall: So check out the website, buoyant works.com. And take a look at their polyurethane products and accept no invitations.

Buoyant works.com.

Speaker 5: As busy wind energy professionals staying informed is crucial, and let’s face it difficult. That’s why the Uptime podcast recommends PES WIN 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: As part of our oil and gas, uh, oversight because I am really tired of reading about, oh, a wind turbine had a problem. Yeah. So does oil and gas, and you may not have read in your local newspaper about the spill they had in the [00:11:00] Keystone, Keystone Oil pipeline up in North Dakota, but it dumped about 140,000 gallons of crude oil on the ground.

They had a mechanical problem where one of the employees heard a. Boom, and then realize maybe we’re leaking a little bit of oil. Uh, this goes back to, uh, a couple of other incidences that have happened with pipelines, particularly this pipeline and that pipeline. Joel runs from, uh, essentially Alberta. Uh, kind of down across to Manitoba, I think it is, right up, which is right above North Dakota.

Then takes a right and goes, goes straight down through North Dakota, South Dakota into Nebraska, then heads over towards, uh, Illinois. So, you know, yikes. Transporting oil is not easy, not as easy as it’s claimed in the media at the moment.

Joel Saxum: Yeah, this time of the year is, uh, difficult for the northern latitudes as well.

So that area of North Dakota, a lot of organic [00:12:00] soil. This is a weird geo geotechnic conversation, but the reason that you have pipeline breaks this time of year is because the frost is coming outta the ground. So when, when those pipelines, when they get pressurized and they move things, they get a lot of, they get heat built up in ’em.

So you have a warm pipeline and then you have it running through soil that is half frozen, half not, and the ice is coming out so that soil starts to move and, and bend. So when they say, Hey, I had an employee that heard something, pop break, that’s because the soil itself is actually moving. Um, and you’ll know that if you’ve ever been up there driving on highways in the springtime, uh, we call it, we call it breakup season when everything starts moving.

But that’s what happened. Right? And it, and it is a, it’s a, it’s a really, I mean, it’s a black eye for, for the oil industry. Uh, but it happens more often than you think. Uh, pipeline breaks, whether it’s, whether it’s crude or whether it’s natural gas or, or whatever’s being pumped. Um, these are, these are rigid pipelines that are run across ground that moves.

So I think the, you know, your, your, your alternatives to [00:13:00] moving crude like that are either on a train or on a truck. And pipelines are safer than those. So this is the, the least of the, uh, the evils.

Allen Hall: Yeah. It’s still a problem. I, I, I am just really tired of hearing oil and gas representatives talk about how wonderful it is.

Like they don’t have any problems. They have problems and there’s a lot of problems, but we’ve, it’s become normalized. It’s, it’s back to Rosemary’s point from several months ago now, like when you have disasters all the time, it becomes normal. It’s okay. No one reports on it. It’s not, it’s not news anymore.

Joel Saxum: At a certain level, there’s like the nimbyism thing, right, where people get really bent outta shape about renewables because they can see it. You can see turbines everywhere, right? When they’re, when they’re up on the horizon, you can see ’em miles away. You don’t see pipelines. But I, I bet you, I don’t care which one of us I’m talking to, even here on the panel or whoever’s listening, within a mile of your house, there’s a pipeline somewhere.

Uh, yes. You just don’t see ’em. You don’t know. You don’t see ’em. So you don’t, it’s not, it’s not an issue until it’s an issue. Wind [00:14:00] turbines, solar panels, battery storage, all these different things. They’re very visible, so it’s easy to see. I encourage anybody who thinks that, that it wind is an eyesore to drive up to Midland, Texas.

And take a vacation out there and then, and then give me a call afterwards and tell me what you saw.

Allen Hall: And let’s go to a country where things are going in the right direction. In South Australia’s renewable energy sector, they are expanding, uh, with plans to what become the state’s largest wind farm and Tilt renewables has proposed.

The, and Rosemary, you’re gonna have to correct me on, on. The Australian pronunciation of this Nwi wind farm, which at the 1.2 gigawatts in 148 turbines, and included with this wind farm are two batteries. Storage systems that can offer up to 300 megawatts of capacity for eight hours of storage duration.

That is massive, Rosemary.

Rosemary Barnes: Yeah, it’s huge. And I think it also comes, um, like, uh, I believe that the intention is construction would begin in [00:15:00] 2029. Um, and so yeah, it would come online after 2030 when the state, I think already plans to be a hundred percent renewable, um, in its electricity, uh, generations. So that’s a really interesting point, like what are, yeah, what are tilts plans for this, uh, huge amount of clean energy once the state’s already at a hundred percent, um, clean.

So, uh, a clue might be in the location. It’s right next to Whyalla, which, um, Australians can’t help but be aware of because for some reason this small town is raised at every single election. There is some sort of publicity stunt involving Whyalla. Um, it’s a big steelworks community and yeah, it’s been used as a example, uh, from, from both sides of um.

The climate change debate about, yeah. Originally it was cited as an example of, this town will be wiped out if we, you know, choose to act on climate change. Um, yeah. ’cause they’re manufacturing steel and currently steel produces a lot of emissions. But then on the [00:16:00] flip side, I. Well, you know, there’s the potential for this to become green steel, given that there is such a huge renewable energy, um, potential in that region.

So that’s my, that’s my guess. Probably a pretty safe guess that there’s some, some sort of plans for industrial uses for this huge amount of green energy that would come online.

Joel Saxum: I think an interesting thing here too, in the article they’re mentioning 90 meter blades and, and I don’t know if they have a turbine model planned or they’re just expecting that’s what it’ll be, but because the port, the port of Al’s right there, they only have to transport those big old blades.

50 kilometers out to the site. Like that’s, that’s amazing. That’s great.

Rosemary Barnes: Yeah. I think they also cited that might come from port, port of Adelaide might be used for transport as well, so it’s a little, little bit further, but still not, not that far in, it’s not like a really lush, vegetated region with a whole lot of huge dense forest right up to the road.

It’s um, you know, it’s a fairly, um, arid, uh, [00:17:00] climate in that region, so I don’t think that transport is gonna be a huge, huge issue for them. Um, yeah, but I do think that also that’s, that’s all I hear for, um, for new big wind farms in Australia, all I hear is huge wind turbines like much bigger than what you typically see for, for onshore.

Like, I don’t, like six megawatts is kind of like. The smallest for things that are coming on very soon. And then after that, people are talking like 10, 12 megawatts. Like I, obviously these turbines barely exist now beyond, you know, like computer models and, um, maybe some prototypes, but obviously. They’re making really big offshore wind turbines.

It’s a lot easier to probably go in the direction from offshore to onshore than the other way around. So it’s not like anyone doubts that it’s possible to make wind turbines like that. Um, onshore wind turbines that big, but. The, um, logistics of installed them seems hard.

Joel Saxum: You know, Alan, correct me if I’m wrong, [00:18:00] but, but, uh, one of our friends down in Australia told us that GE was gonna be installing only one model, the 6 1 1 58, 6 0.1 megawatt machine from here going forward.

And I think, Rosemary, to your point, he also told us that this is the, one of the first turbines that they’ve extensively tested. For a longer duration. So this was the first one that’s been like the, the, you know, serial, serial number, number one has been installed and will have been running for a year before they even install serial number number two in the field.

So that’s a, so tackling both things here, bigger turbine. Yes. Uh, and that’s the only one they’re gonna go with. So they can focus on, it is a workhorse machine and they can make sure they’re maintaining it correctly, but they’ve also got some, uh, they’re gonna have more operational history on it before they actually go and start.

Building tons of’em. ’cause we know we’ve heard of those wind farms where they, the turbines don’t even have a tech certificate yet and they’re sending a two, 300 of ’em out there.

Rosemary Barnes: Yeah, well, I mean it’s really [00:19:00] normal that you know, like your, um, and you know, obviously I know, I know blades primarily, but you know, your serial number one is your test blade.

Maybe there’s a two as well. That’s also a test played sometimes. Not usually. Um, and then, yeah, like, so serial one is a test blade. Serial number two is in the field, and so is 3, 4, 5, 6, you, you know what I mean? Like you start the test. You’ve probably passed like some, some of your tests, maybe the, um, static test is completed already, but then the fatigue test is only partway done by the time that you’re installing, um, blades in the field usually.

So, I mean, it’s, it’s because people have become very good, um, the design codes, the, you know, the materials factors that they. They know it all really well. It’s really proven out over decades of experience, and so they felt very safe and it was incredibly rare that you would see a problem until recently.

Now it’s not such a big problem. So I think that’s a, a fantastic, um, step to make, to be a bit more certain. But I mean, [00:20:00] even that is not I adding. All that much safety, if you think about it, one turbine in one location in the world. I thought what you were gonna say is that GE are only doing one turbine type in Australia and that they have taken the effort to understand that Australia’s specific conditions and, uh, you know, know that the.

Leading edge protection is UV resistant and so will last more than one year. That Yeah. The, you know, lightning protection system performs well under the types of storms that we see in, uh, the places in Australia where they install a lot of, um, big wind farms. Um, that, yeah, like there’s some, uh, higher temperature resistance because you know, a lot of, um.

A lot of wind farms are in deserts where the temperatures are frequently above 40 degrees during the day. And everyone knows, everyone that’s been in a wind turbine knows that inside the wind turbine, inside the blade is at least 10 degrees hotter than that, right? Pushing up, butting up or past, um, material safety limits.

So, um, that is what I would, I [00:21:00] would really like to see.

Allen Hall: Don’t let blade damage catch you off guard the logics. Ping sensors detect issues before they become expensive, time consuming problems. From ice buildup and lightning strikes to pitch misalignment in internal blade cracks. OGs Ping has you covered The cutting edge sensors are easy to install, giving you the power to stop damage before it’s too late.

Visit OGs ping.com and take control of your turbine’s health today. Yeah, the classic cultures, a delegation from Louisiana traveled to Denmark to learn about, uh, wind energy from the experts in Denmark, which is a smart thing to do, and I wish more states would do this actually. Uh, the tour, which is organized by the center for.

Planning excellence included state and local officials from Louisiana, academic researchers, industry experts, and of course port authorities, which are so critical to the success of offshore wind farms. And they went over to, uh, learn all they could from [00:22:00] everybody in Denmark. Now, the, the ports in Denmark are really unique in the sense that they have been redeveloped over time and they are.

Are extremely powerful in supporting denmark’s wind energy, uh, organizations. And they support a lot of ’em, uh, right from the ports in Denmark. Now, one of the things I thought was a little interesting is that Louisiana, which really doesn’t have any offshore wind, is actively pursuing it. And even though the, the, the, the federal government in the United States is not looking to announce any more win sites, Louisiana, I think it’s going to push for some.

Because it does provide a number of jobs, and Louisiana is really set up and our friends at Gulf Wind Technology have created a low wind speed wind turbine blade that will make it possible to have offshore wind near Louisiana. Joel, does this make sense to you? Does it seem like Louisiana has taken a very forward first step?

Joel Saxum: I think there’s a couple of ab, absolutely, completely agree. Alan, I’ll just [00:23:00] start with that, but there’s a couple of things here Louisiana Wise that people may not know. First one. When they started developing offshore oil and gas in the North Sea and Norway and all this stuff, and back in the seventies, they called people from Louisiana to come and teach ’em how to do it.

’cause the, ’cause the, the Cajun Navy had been doing it in, in the Gulf for a couple years already. So they knew how to do it. They took their expertise and they went and gave it to. The North Sea, right? So now the tides have turned, the louisianans are heading back up to there, to, to the North Sea to get some knowledge to bring it back.

And uh, so that’s one little kind of equipped story. But the other one that’s interesting here too, and Phil, you and I have talked about this. I know Alan, we’ve talked about this as well. Louisiana’s the only state that has tried to do offshore wind within their state boundary waters. And they’ve put in.

They put in legislation to share in the profitability of these wind farms, which is a great move in, in, [00:24:00] in my opinion, the same thing that like Alaska has done and Texas has done with their oil reserves. If the, is the reserves there, someone’s gonna make money on it, the whole state should benefit. So they’ve done that.

Um. They’ve got the infrastructure, like you said, Gulf Wind Technology. They got a key side facility. There’s all kinds of ship manufacturers. The ship, the Eco Edison, that’s up in or on Ted’s sites up in New York that came, that was built in Louisiana. So like the, I think that was, was Thatwe who built that one?

Maybe Phil, you know that, was that Edison SCH West? Yes. Yes. So I think they’re based in Houma, which is, you know, right there. So. They have the key side facilities. They have the vessels. They know how to operate offshore. They’ve already put legislation in place. I think that the, the government of Louisiana is, is charging forward.

I did read something the other day too that said, um, quietly there has been some onshore development in Louisiana. They’re like fi five different wind farms that have been then property rights and those kind of negotiations are going on in the background that. The general, you [00:25:00] know, the general wind industry.

You wouldn’t think of Louisiana as a place for wind, but it’s happening.

Allen Hall: Well, let’s talk about, the one item I wanted to talk about, about this is the food culture and the clash between the two food cultures. So having been to Denmark and Rosemary took, uh, Valerie, my wife and me to a, uh, really nice, uh, restaurant with where they have SMI board gr, which is this open face sandwich on rye bread.

That is about the consistency of a two by four Delicious, but it is very thick and dense. So, uh, you have to, you have to, it isn’t the same what you’re gonna pick up and eat. You’re gonna have to cut it with a knife and a fork. It’s really thick. Delicious, though. Quite delicious. And Louisiana is known for the Cajun cooking, right?

Everything New Orleans is fantastic. I did a quick look to see how many Michelin stars are in the state of Louisiana and Louisiana’s about. Three times the size of Denmark. There are no Michelin restaurants in the state of Louisiana, which is hard to believe. ’cause if you’ve been to New Orleans, [00:26:00] they have a lot of great restaurants.

Rosemary Barnes: It has a reputation for good food too. It’s not like the rest of the world is, is knows that there’s good food there

Allen Hall: everywhere and where you stop. But Denmark has over 30 Michelin star restaurants.

Joel Saxum: Copenhagen has the most. The most of any city in the world. Copenhagen is the, the head.

Rosemary Barnes: Yeah, Denmark’s really good for, um, like it’s expensive to eat out, even like bad food is really expensive.

If you wanted to, I dunno, I never ate McDonald’s in Denmark, but, you know, something like that or around that level, like pizza, very expensive, not very good, but one step above that is not. Very much more expensive, but is like amazing quality. So if you go to like the local inns, they’re called Crow. Um, they, uh, usually like bordering with fine dining.

They’re just, the food is amazing. Like it’s a little bit more relaxed atmosphere, but just absolutely fantastic food. And in fact, one time we went to a place that was because we were living in Colding. It’s a town of like 60,000 people, like in. Fairly [00:27:00] rural jet land. We went to a place in a, a nearby, even smaller town, um, and went to this restaurant.

Fantastic. Like I’ve never had such good bread and butter was like the thing that stands out. Most of that meal for me was how good the. The bread and yeah, the bread and butter is, um, and then like a month later, it got a Michelin star, but it wasn’t, it wasn’t like it was known as a good restaurant, but it wasn’t like no one is being fine dining or anything.

But that’s like, that’s what I’m saying is that there’s a lot, like the bulk of the nice ish restaurants in Denmark are right on that cusp of being fine dining. Um, so it’s, yeah, it’s a little, it, it, it’s, it’s quite cool once you get the hang of it. And once you realize that. The lower tier, just no point doing that.

You know, you either stay at home and eat, or you spend a tiny bit more and get amazing food, but don’t do that like, you know, don’t go out for pizza. It’s, um, it’s hard to find, find something good like that.

Joel Saxum: I think, Rosemary, you nailed it. When we were talking earlier about premium ingredients, and that’s one of the big [00:28:00] differences between Denmark Food and Copenhagen Restaurants and Louisiana, because in Louisiana you may eat something and it tastes delicious, but you’ll have no idea what is in that food.

You, you, you’re gonna know that the base is probably a ro or they use the holy trinity at some point in this dish. Bell pepper, onion, celery, that’s the holy trinity in Louisiana. And most all dishes are gonna have some form of that in it. So you might be eating like a soup or like, sometimes it looks like a paste.

I don’t know, but like a good tufe. Is it lump crab? Is it crawfish? Is it what’s in here? I don’t know. Here you go. But it’s delicious. It’s gonna be good.

Allen Hall: Roseberry, you have a very important announcement.

Rosemary Barnes: Yeah. Uh, coming up we have uh, Australian Wind Industry Forum, which is on Tuesday, May 6th. And I’m very excited ’cause I’m speaking this year.

I have, um, I have tried to speak at this conference for a few years and it’s gonna be in a session. There’s a session on turbine design. [00:29:00] Um. Related issues, uh, turbine design and technology. And so I’m gonna be giving a presentation. It’s called. Innovation in wind energy lessons from the front lines. So I’m gonna be talking about how the design certification process works for wind turbines and then also what happens when something goes wrong.

You know, when you, uh, are in the field and you have, uh, I don’t know, serial defects or you suspect serial defects, you’ve got a lot of blades breaking. You’ve got a lot of. Lightning damage. You’ve got, I dunno, problems with, uh, excessive downtime for whatever reason. Um, yeah, gonna talk about that. And then also, like I mentioned earlier in the show, Australians really love to be the first ones to get a new type of turbine.

Um, how could you make sure that you can be a leader without being a Guinea pig? So gonna talk about some of the things you can do because actually, um, you, a customer, an an early customer, if they’re a large customer, does have the opportunity to be part of that design process. And in particular. You can request [00:30:00] certain tests are, are, are done.

Um, I’m not saying that it’s guaranteed that the OEM will perform them for you, but you certainly, you and your bank and your insurance all have the ability to, you know, be part of that, um, design process if you are an, an early adopter with a large order. So we’re gonna be talking about yeah. How to, how to manage all of those issues in the Australian context.

So come along

Allen Hall: and where can I go to register for this event,

Rosemary Barnes: you can go to wind industry forum.com au.

Allen Hall: That’s gonna do it for this week’s Uptime Wind Energy podcast. Give thanks for listening. Please give us a five star rating and tell your friends. Tell your neighbors. Tell your neighbors friends to start listening to the show.

We’ve had a lot more people join us lately. And we want that trend to continue. So thank you for listening, and we’ll see you here next week on the Uptime Wind Energy [00:31:00] 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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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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