Weather Guard Lightning Tech

How Active is Active Pitch Control for Wind Turbines?
In this episode of Uptime, Joel Saxum and Allen Hall sit down with the CEO of AC883, Lars Bendsen. AC883, a Canadian ISP specializing in blade repairs, has gained recognition for their unique approach to pitch alignment during the frozen ground season. Pitch misalignment is a topic of growing importance in the wind energy industry, and in this discussion, Lars shares his insights on its impact and challenges. He raises thought-provoking questions about the effectiveness of active pitch management and its potential limitations in practice. Join us for this engaging conversation as we delve into the complexities of pitch alignment, mass imbalance, and other critical aspects of wind turbine maintenance.
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!
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AC883 – https://www.ac883.com
AC883 Interview
Allen Hall: We’re here at CanREA with Lars Bendsen of AC883. If you are familiar with AC883, they are an ISP up in Canada that does all kinds of blade repairs. And one of the more interesting things that they do that’s unique is pitch alignment. So this is pitch alignment season when the ground freezes over and they take their equipment out and make sure your blades are pointing in the right direction.
And which Evidently, it is a thing that a lot of blades are not pointed in the right direction.
Joel Saxum: Yeah, Lars has shared that with us. Big problems all over the place.
Lars Bendsen: It’s for sure a topic that’s become more and more evident. There’s more and more people out there doing the same or similar way of detecting a pitch misalignment.
Yeah. Of course, there’s more awareness around it now than there was when we started doing it with our methods of doing it. So it’s for sure become a topic. There are also more engineering reports coming out from NREL. And from sorry, from the German Institute as well. Yeah. So there’s ton of rebar coming out of the damages that misalignment causes.
Joel Saxum: Yeah, it’s like running a car down the highway without an alignment on the front
Lars Bendsen: end. You’re gonna just… It’s funny, if you have your right tire and your car is unbalanced, you go in right away to get it changed. Which you don’t do with your turbine, you just let it run. Yeah, because turbines are cheap, right?
Yeah, exactly. It better cost any money.
Joel Saxum: Ha! We’ve been talking with Lars, of course, always great conversations, the knowledge that he has. And the AC 883 team and we’ve stumbled upon a theory that we want to talk about. So it, with the knowledge of pitch alignment and what you guys see out in the field, and of course seeing all kinds of different OEMs and issues that pop up, you’ve come across one specifically that we’ve been talking about.
Want to share that with us?
Lars Bendsen: Absolutely. I think it’s me throwing it out there and also to get some great feedback. So it’s my theory. And what we have seen is the the topic on active pitch. Which means you’re twisting the blades half a degree every time you pass the tower. And the reason they do that is?
Let’s do it because if you take some of the the, what do you call it, the What do you call it? I lost the word, right?
Joel Saxum: What do you call it? It’s like Wind buffeting causing
Lars Bendsen: deflection. Take the other way so we don’t have that and you can actually run in higher winds as well. Okay,
Joel Saxum: yeah. Yeah, because you don’t want that way if you’re running in high wind speed and there’s a lot of force coming by when that tower passes or when that blade passes the tower each time you get like a basically a pressure area of wind
Lars Bendsen: and what they’re trying to do is it’s a little bit of a reversed wake yeah going like that yeah and you get them by more pressure on the tower so that’s why i’m trying to avoid it and that means all you can actually expect the design envelope that’s not my theory that’s a fact by using active pitch you’re extending to this the same you design envelopes, you get more megawatts out of the same turbine.
Allen Hall: So it’s an efficiency move? It’s supposed to be, yeah. Now, you go out and measure hundreds or thousands of blades while they’re running, right? The turbines are running, you’re actually watching as the blades sweeps in front of the tower and you’re determining pitch alignment from that little snapshot there.
So you can see where active pitch alignment happens, right? Yeah,
Lars Bendsen: we should be able to see it. But we can’t. So we have clients that, we asked him to take the active pits off. So we have, I have a more true measurement off the blades of the rotors state, so to speak, but some of them forgot to do it or cannot do it himself.
So they’re running with active pits because depending on what access they have to their own controller from the OEM. Yeah, or what service they have, they might be don’t even have access to do it. Yeah. They have to call the OEM. to take the active pitch away. And that’s way too common in the industry.
That shouldn’t happen. It’s that’s, I think that’s a different topic. Yeah. Of the balance between Mona and OEMs, that’s a different topic. Yeah. that we have seen with or without active pitch, there’s no difference in the misalignment. When
Joel Saxum: that blade comes by and it’s supposed to be moving that half degree back and forth, when you guys are doing your pitch alignments with your actual laser instrumentation, you don’t actually see it.
We don’t see it.
Allen Hall: Now is that a, a, a. A function of the pistons that are driving the blade not functioning properly, which is a thing because you see a lot of oil and a lot of debris around those pitch actuators.
Lars Bendsen: I think it’s it’s many things. It could be the pitch actuator is not working properly.
That’s one of the issues. Yeah. I also, but it’s more consistent. So if it was that issue, it would be the, it would be only on one blade, but it’s on all three blades. If that was the real
Joel Saxum: issue. If the pitch motor was bad, you would see it on, one of them would be bad or something like that. Just
Lars Bendsen: be oil everywhere.
Yeah. Okay. But we don’t. So my theory is, and based on the real, what we call experienced technician in the field, is that it doesn’t work. So in theory, if you see we have the blade that’s 50 meters long, running on, on rated speed, let’s say 7 or 8 meters per second. We have about 40 to 50 ton of pressure onto the blade as it swipes down to 40, about 40 tons of pressure to the blade.
And we have a two horsepower motor, a two kilowatt motor up here, trying to switch it plus minus five degrees, but in an angle of 10 degrees with 15 RPM. And that
Joel Saxum: blade itself weighs 10
Lars Bendsen: tons? And yeah and the flexibility in the blade, which you, it’s built in because you want to have a flexible blade.
So how is that going to work? You want a two horsepower motor? 50 meters down, turn a turn a flexible blade with 40, 40 tons of pressure on. Your theory is starting to make sense. That’s my two cents. I’m interested to hear if anybody… I doubt probably a ton of those listening are gonna disagree with me, and that’s okay.
That’s what we’re here for. That’s my theory, and that’s what I’ve heard and what I have seen. And also talking to pitch guys, they love it. Because they’re selling a lot of pitch cylinders. We’re getting a lot of pitch cylinders. Because the thing is here, you’re basically only… twisting the rubber sealing.
You’re not actually moving anything. The rubber is flexible itself because it has to be. So you’re just twisting the rubber sealing and that got worn out so the blade
Joel Saxum: is not moving. So what you’re saying is when that blade is sweeping down and it gets near the tower at six o’clock, that the pitch, the active pitch management is engaging that motor to turn that blade a half degree and then turn it back.
But because of the forces on the blade, it can’t actually do that. At a two horsepower motor. And so it’s just basically spinning the motor or pitch cylinder is just spinning in itself up top.
Lars Bendsen: Yeah it’s because there’s a rubber ceiling up here. Yeah. So it basically just twisting the rubber ceiling and not actually doing it.
And I think even if it didn’t, even if it didn’t, was either it was a fixed connection without a rubber seal, then would it then be able to do it 50 meters down
Joel Saxum: with 40
Lars Bendsen: it just strip the motor. I would’ve just strip the
Joel Saxum: motor. Yeah. Either way, if this thing is doing this. It’s moving like that. And if you’re talking 15 RPM for the rotor, that’s four times, or what’s
Lars Bendsen: the math on that?
That’s 45 times.
Allen Hall: Yeah, 45
Lars Bendsen: times
Joel Saxum: a minute. That’s a lot of movement
Lars Bendsen: within that thing to get hot, constantly. So my theory, and based on what we have seen, there’s no difference in our system, whether they use it or not.
Allen Hall: How would they know that the system worked in the first
Joel Saxum: place? They would have had to have had tested
Allen Hall: it.
They would have had to have laser shot it, right? How would you know… You can obviously see the motor working, if you’re up in the cell. You can see that twist happen. But how do they know what’s happening way down at the tip? I believe,
Lars Bendsen: of course, you can see the control system that is working.
It does its job. They can see that. Of course, the actuator is moving. They can see that. But it’s a physical moving down on the blade. Can you see it? We’re producing power on the last third of the blade. Yeah. Whatever, from the tip up. Yeah. One thread up, that’s where you’re losing power. But do they actually move down there?
We can’t see it.
Allen Hall: So if you can’t see it, that means that either one or two things is happening. Either it’s not moving the blade at all, or you’re putting some unique torsion into the blade. The blade’s absorbing the rotation you’re trying to impose on it, so you’re twisting the blade every time it comes around the
Lars Bendsen: tower.
But it’s interesting, if it was working as it’s supposed to do, then we would see a difference, because every blade is different. All blades are handmade, so unless they have exactly the same twist, which is, I doubt they would have, but if
Joel Saxum: they had, you would see different levels of deflections. Yeah.
But, either way, the design of active pitch management is going to have a wear part in the pitch cylinder, it’s going to introduce structural fatigue within the blade, so is the juice worth the squeeze even if it was? Because we’re saying that’s not working as a
Lars Bendsen: theory. Yeah, I don’t know the theory behind the blades, if it really has that high an impact.
That’s, somebody had to read more school books than I have to figure that out. So I don’t know that, only from an engineering perspective, because the blades are flexible. Anyhow, they have to be built flexible. And just the fact that they have to be built flexible is that, my theory is, it doesn’t work.
You cannot twist that 50 meter blade in that short time, 45 times per minute, and come back. So that’s my true sense from the, from my experience.
Joel Saxum: So if you were, if you had an operator sitting with you right now at the table across from us, and they had active pitch management in their turbines, what would you tell them?
Lars Bendsen: Depending on the wind scheme, you have to be careful about that. What wind scheme do you have? Let’s say in low wind, very low wind, you might be, would have that twist. I don’t know why you would use it in low wind. Why would you need it? No, I agree. That’s my point. In high wind, I cannot see the need for it.
I can’t. But I would love to see if somebody would argue against me and tell me why I, my theory is wrong and show it to me physically. I want to see that twist coming. I would love to see it. I hope it works.
Joel Saxum: Because otherwise it would just be like, Hey, I know you have this in your turbines, but shut it off.
Cause you’re just causing yourselves. You’re not you’re actually costing yourself more because now you have another O and M part that you have to. Oh yeah. Yeah. Yeah.
Allen Hall: Because the concept between. By active pitch from a blade standpoint as blades get longer is you could make lighter blades you could use that flexibility to your benefit make the blades lighter He transports a whole bunch of money materials, right?
That’s the thought process in it But if it doesn’t actually do the task, then you’re really at a big risk But also it’s a major problem
Lars Bendsen: the theory behind this also take the load off the tower, right? So that’s right that means you can cruise happy. You can increase Your design criteria from, I’m just saying 2 megawatt to 2.
3 megawatt, as an example, by having four enforced active bits. If it doesn’t work, are you then going over your design envelope, or are you just squeezing it to 105%?
Allen Hall: So I want to take this discussion over to mass and balance. Yeah. So mass imbalance seems like it’s a more peculiar failure mode or not so much failure mode a missed opportunity.
I’ll call it that especially on a blade Swap out. Yeah, they have a blade damage problem They’re gonna put a new blade on it and they just slap on a new blade That doesn’t necessarily mean that blade is matched with the other two that already exists so now they have this kind of this really weird rotation aspect where It seems like two of the blades are moving faster than the third one.
Yeah, true. How do you detect that, and, first, describe that. Like, how do you measure to know that one blade is off weight wise? Okay.
Joel Saxum: The first part, you gotta start with getting the blades
Lars Bendsen: served. Yeah, first of all, we need to, when we are measuring, first things first, we’re getting the same angles so they are all aerodynamically aligned.
Okay. Start there. Okay. And after that, then we’re measuring the mass imbalance. And we’re doing on a rotation because we come to call it shiang. If everything works well, it should be 120 degrees between the blades, right? But it, we are measuring the plus and minuses time that comes down a long time or many degrees is that delta from blades A to blade C to blade B, how much is they in between?
And if one is always coming down, a heavy blade coming down faster that way, then it goes up slower to the next one. So we measuring the delta between and the rotational speeds ’cause it should go like. 100 right? But it has always this, if you have the mass imbalance.
Allen Hall: So that, that is torture on a gearbox and a drivetrain, right?
Absolutely. Main bearings?
Lars Bendsen: So there is a, there are two things. If, then one thing is the aerodynamic balance, unbalance. If it’s within reason, whatever that means, within a degree, of course it has an impact on the drivetrain. But if you have extreme aerodynamic imbalance, four or five degrees, which we have seen, then that’s equally bad as mass imbalance.
So back to the mass imbalance. Let’s say now we have aerodynamically balanced. Now we have the mass imbalance. And as you said, change the blade. We had some that should be weighted out. They should be balanced. Everything should be good. The client did not tell, then the clients do not tell us if they have a blade repair.
They tell us after the fact. Oh, why is this one out? Oh, by the way, we actually changed the blade. So on one of them we found there was 82 kilos missing in chamber number two. 82 kilos missing. The turbine could not run over 70 meters per second. It was stalling. Sure. And the blade tip on, you see the, what do you call it?
When you see the rotation from the side, the blade tip delta was five feet. It was one meters and one meter 20. So
Joel Saxum: like basically as the blades passed the tower, one of them was closer to the tower by
Lars Bendsen: five feet. It was actually, no, it was closer to away from the tower. Okay. Because if you see those 82 kilos missing.
It’s not heavy enough, not big enough. It’s actually, it’s further away from the tower. And that was a median 20, so that’s 4 feet. You can see that with your blind eye. We can see it and we can hear it. We can hear the whistling. Yeah, that’s crazy. 100%.
Allen Hall: What percentage of blades have mass imbalances out there?
Lars Bendsen: From what we have seen, we have done about 1, 000, 1, 200 blades. Might be more, not blades, but turbines. Might be done more, I can’t remember. But turbines from. Zero to four years old and say four to eight and over age. Let’s try to do that. The newer turbines is about 15, 20 percent out of bounds.
And once you move up, then you’re about 30 to 35%. And once you get over eight years old, it’s 35 to 50 percent out. Whoa. And that’s, I could go more detailed, but that’s rough numbers. For sure, sorry, but GE turbines older than eight years. That’s 50 percent out. Gemesa turbines, 8 years old, we had a site of more than 100 turbines.
52 were out of bounds. So that’s some examples. Okay, that’s a
Allen Hall: lot. That’s a lot. Way more than I was thinking it was. And that’s mass imbalance or pitch
Lars Bendsen: imbalance? That’s aerodynamic. Aerodynamic
Allen Hall: imbalance. Yeah. Okay. And mass imbalance, where do you think the
Lars Bendsen: number is?
I don’t, I can’t, it’s hard to quantify. I can’t do that because we only see it if we are being called out. All via catching it by
Joel Saxum: coincidence. One of the things that I always wondered about is insurance case, blade gets swapped out. A lot of times they say, hey, we gotta put three new blades up because we can’t find one.
Or if they have a safe harbor blade sitting at the O& M building, hey, that one actually, the weight cert’s close enough, da. Would you recommend that, hey, if you’re gonna swap a blade out, no matter if it’s one blade, or you’re doing a whole rotor set, if it’s a case like that. Come out and get the pitch alignment
Lars Bendsen: checked.
Should for sure get it done anyhow when you’re changing one blade. Yeah. Because the zero mark doesn’t really give you much. It’s not very accurate. Yeah. So we have to get the message somehow, or get it adjusted. Could be the vowel laser, or someone else, but you need to get it mapped out.
Another thing that’s important is that, the spec sheet from the one turbine we had that was really severe, that was a spec sheet from from LM. Tells you where the weight is. And it turns out that person who made that balance did not follow that spec sheet. She was just missing 82 kilos. Wow. So that’s another thing as well.
ISPs, independent contractors, seems not always being educated to the work they do. Sure. Yeah. Yeah, that’s an industry wide problem. That’s industry wide, but also many turbines are, of course, mostly placed in rural areas. So how do you get qualified? Yeah,
Joel Saxum: it’s tough. That boils down to the technician issue that we’re always talking about.
Yeah, right training
Allen Hall: is what just one thing Back me up on the GE aero dynamic alignment issue. Is that just a wear and tear on the structure, that the twisting of the blade, having done so many cycles, that it doesn’t, they don’t behave the same as the age? Because that would make sense to me. That on…
Yeah. Structural fatigue, yeah. It’s a structural fatigue issue. I think
Lars Bendsen: also that’s so the GE, of course, is electrical bits. There could be an encoder that doesn’t work properly. Or might be the controller get the signal, it does move. But actually it doesn’t. So that’s one thing, and then of course the, I’m just saying the Vestas, the the Siemens, that’s hydraulic bits.
And there you see that’s leaking pit cylinders they’re wandering because they’re slowly leaking, so you don’t get the movement they think they
Joel Saxum: get. What? It’s easier to see that if you’re up in the nacelle, or looking in the hub, it’s easier to see a problem with the hydraulic bits.
Lars Bendsen: Electrical bits you can’t really see it. Yeah.
Allen Hall: So if that’s so prevalent. What kind of AEP loss is that? That turns into power production issues. Yeah.
Lars Bendsen: There is power production. You’re losing power in the low wind area. Not as much in the high wind area. You trade off in high wind, you get way more vibration.
Yeah. But you’re losing, you have less vibration in low winds, but you’re losing power in high wind. You get way more operation where you’re using your gear pass.
Joel Saxum: Yeah. You’re wearing
Lars Bendsen: components out prematurely. You’re gonna pay either way, , you’re gonna pay in little bit one way and missing production. Yeah.
Allen Hall: What are the first signs that you know you may have a pitch alignment issue? Is the SCADA system chipping off before you’re in high wind conditions? Are you getting alarms, let’s say? Something is wrong?
Lars Bendsen: Vibration alarms. Vibration alarms, you get that from the ABA. A lot of vibrations in this turbine.
It’s stalling after seven meters per second. Let’s check that. And then we’re going out and then we’re digging into it. And mostly we find out it is a aerodynamic imbalance or a mass imbalance.
Allen Hall: I know one of the… issues from GE more recently over in Europe was they had a couple of blades snap off and then they traced it back to a single sensor in the turbine now I’m catching it soon enough, like there’s an issue with the sensor.
Yeah, that’s the story we’re being told today. Yeah, I’ve seen that story a couple times now, so it seems to be a pretty consistent story. So if that’s the case, is that basically a load imbalance, an aerodynamic imbalance, then that it’s not catching…
Lars Bendsen: Of course, if you don’t catch the vibration regardless of where it’s coming from, already there you have an issue because then again you’re going to pay later. If it’s from, if that could have been caught by the sensor working and thereby you could adjust your blade, I don’t know, but that’s an option.
Allen Hall: What’s the issue though? Is it an aerodynamic imbalance? Not shipping the sensor. Forget about the sensor for a minute. The sensor is there to capture gross errors, right? So if they had a gross error, and in a blade, which would cause the blade to fatigue and break, I would assume that’s a vibration sensor of some sort and that the issue would be, could
Lars Bendsen: be as simple as pitch alignment.
Could be, yeah. But we see, vibration level, we see that caused by both. Okay. The shorter vibration level could be caused by aerodynamic imbalance, but that’s more a vibration level. If you have a massive imbalance between the oscillation of the tower, and then you’re down to the foundation, and then you’re really in trouble.
Allen Hall: Yeah, because I think that has a lot to do with repowering. So we talked to Onyx Insight for instrumenting towers for the amount of sway they have. Yeah. There’s a couple of companies doing this, but basically they’re monitoring the towers from the sway they have because it helps them determine the structural integrity of the foundation when they go to repower.
Put a slightly bigger blades, maybe a slightly bigger generator on this thing. They have to know what the foundation is doing, and it takes 12 months to do it. But my guess is that when they monitor some of those turbines, they must be seeing some decent amount
Lars Bendsen: of sway. We are seeing, we can see sway up to 600, 700 millimeters.
Half a meter and more. Whoa. But one thing is the sway, but what if we have the isolation?
Allen Hall: It’s not back and forth, it’s left and right. No, it’s actually elliptical. Yeah, it’s elliptical right. Yeah. That’s a big problem for a
Lars Bendsen: foundation. That’s why we have seen, tower collapse and we have seen the change of foundations.
It’s out there. We went to sites where basically there’s no dirt around the foundation because it’s all shaken apart. Wow. It’s horrible. Sometimes it’s scary, but you see a lot of stuff, but I do believe by, we were one of the first movers doing this. We have a ton of people doing it with different technologies.
SCADA data, which can be done to, might be more data heavy. And more on the backend of the engineering department. Heavy. There’s high speed cameras, different ways of doing it. Sure. But it’s the same issue we’re trying to address. So by we have more people out there doing it. It’s got more awareness, I believe that people know.
Yeah. Oh my be is not only a 83 finding stuff. Yeah. But there’s actually a lot of findings out there.
Joel Saxum: Speaking of finding stuff, Lars, I got a question for you. ’cause this is something that I was actually talking to someone last night about. Is blade bolts. Yeah. So blade bolts, whether it’s pre tensioned, post tensioned, however they’re tightened, Torqued, over torqued, under torqued issues with the torquing guns when they go on, all these different kind of things.
If there was an issue in either the blade bolts torquing, breaking, or say the actual pockets that they’re epoxied into starting to move, Would you guys be able to find that with your pitch
Lars Bendsen: measure as well? I think it would be hard for us to tell that is a root cause. But there’s a lot of boxes we check once we we can see it’s in balance, right?
Check, that’s good. If we still have vibrations, but we have no tower movement, okay, then we might be looking at the drivetrain. Yeah. There could be some gearbox or main bearing issues. If we, is that also in okay, but we still have a lot of sway, let’s check the imbalance, the mass imbalance, which we’re also checking, right?
So we get the report fully from right away.
Joel Saxum: So it’s, so you’re using your pitch alignment methodology as a
Lars Bendsen: diagnostic tool. Yeah, it’s more than just, it’s more than just a, what do you call it measurement tool. We also get a lot of checking boxes. Is it that? Is it that? Is it that? It could be different reasons.
Blade twists. We have detect, we have detected huge what do you call it failures in blades. We had a tip that was twisting five, six degrees compared to the rest, and there was a crack in the blade. That we that was by pure coincidence. That was not why we were on site. But we see a lot of stuff, a lot of boxes you can check.
Once we do that analytics. And it takes seven, eight minutes. That’s it. And we get the whole report. Then we are checking some KPIs if they are okay. And then we move on to the next. Or we analyze a little bit on site. What it is.
Allen Hall: So we’re in the peak pitch alignment season. Because the ground is frozen.
That makes life a lot easier. And
Lars Bendsen: We have more constant wind than in the summer. So we need a constant wind speed. What’s your, what,
Joel Saxum: what are your constraints for actually
Lars Bendsen: doing it? Roughly between four to ten, ten meters per second. But it’s more important we need the number of rotations. We need roughly six RPMs.
That means a GE meters, 37 meters. Slaves, yes, they’re spinning way faster than a 53 meter blade. But roughly 7, 7 RPM would be good for us.
Allen Hall: So then, this is the time to be calling AC883, right? Where at the end of October, the ground’s starting to freeze up in Calgary, clearly. Absolutely.
It’s moving south rapidly because you want to get ready for the season. The peak production season. Yes. And you want to have your blades aligned to get rid of some of these. Exactly. Historical problems that are happening.
Joel Saxum: Or if you want to talk to Lars about his active pitch management. Yeah, you’re going to have to talk
Lars Bendsen: to Lars to definitely talk about that.
Oh, absolutely. I’m happy to take the discussion. And I’m happy to be turned around. I would love that.
Allen Hall: So how do we find you on
Lars Bendsen: the interwebs? Interwebs is just ac883. com. Okay.
Allen Hall: AC883. com. Yeah. It should be right there. Okay. And then also only you can check out on LinkedIn or you can, especially if you have alignment issues, you can reach Lars directly on LinkedIn. Talking about the act of vigilante.
Lars Bendsen: I’m happy to take this discussion. I’m happy to take this discussion. I’m happy to cave in. Totally happy to do that. That’s just my practical two cents. And there’s probably a bunch of engineers that can tell me different. I would love that.
Perfect.
Allen Hall: Yeah. Lars has been fantastic. We don’t get to see you so much just at conferences because we all that’s how this works. But yeah. And this has been great and I, and this has been a great conference in Canada and we appreciate all the support you’ve given to Weather Guard. Yeah.
And it, it’s been fantastic. Really. It has been. Thank you. My pleasure. Really, we appreciate all the effort there. So yeah, you have to take us out for a steak tonight or Joel and I just steak
Lars Bendsen: tonight. . Absolutely.
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Allen, Joel, Rosemary, and Yolanda cover major offshore wind developments on both sides of the Atlantic. In the US, Ørsted’s Revolution Wind won a court victory allowing construction to resume after the Trump administration’s suspension. Meanwhile, the UK awarded contracts for 8.4 gigawatts of new offshore capacity in the largest auction in European history, with RWE securing nearly 7 gigawatts. Plus Canada’s Nova Scotia announces ambitious 40 gigawatt offshore wind plans, and the crew discusses the ongoing Denmark-Greenland tensions with the US administration.
Sign up now for Uptime Tech News, our weekly newsletter on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on YouTube, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary’s “Engineering with Rosie” YouTube channel here. Have a question we can answer on the show? Email us!
The Uptime Wind Energy Podcast brought to you by Strike Tape, protecting thousands of wind turbines from lightning damage worldwide. Visit strike tape.com. And now your hosts, Alan Hall, Rosemary Barnes, Joel Saxon and Yolanda Padron. Welcome to the Uptime Wind Energy Podcast. I’m Allen Hall, along with Yolanda, Joel and Rosie.
Boy, a lot of action in the US courts. And as you know, for weeks, American offshore wind has been holding its breath and a lot of people’s jobs are at stake right now. The Trump administration suspended, uh, five major projects on December 22nd, and still they’re still citing national security concerns.
Billions of dollars are really in balance here. Construction vessels for most of these. Sites are just doing nothing at the minute, but the courts are stepping in and Sted won a [00:01:00] key victory when the federal judge allowed its revolution wind project off the coast of Rhode Island to resume construction immediately.
So everybody’s excited there and it does sound like Osted is trying to finish that project as fast as they can. And Ecuador and Dominion Energy, which are two of the other bigger projects, are fighting similar battles. Ecuador is supposed to hear in the next couple of days as we’re recording. Uh, but the message is pretty clear from developers.
They have invested too much to walk away, and if they get an opportunity to wrap these projects up quickly. They are going to do it now. Joel, before the show, we were talking about vineyard wind and vineyard. Wind was on hold, and I think it, it may not even be on hold right now, I have to go back and look.
But when they were put on hold, uh, the question was, the turbines that were operating, were they able to continue operating? And the answer initially I thought was no. But it was yes, the, the turbines that were [00:02:00] producing power. We’re allowed to continue to produce powers. What was in the balance were the remaining turbines that were still being installed or, uh, being upgraded.
So there’s, there’s a lot going on right now, but it does seem like, and back to your earlier point, Joel, before we start talking and maybe you can discuss this, we, there is an offshore wind farm called Block Island really closely all these other wind farms, and it’s been there for four or five years at this point.
No one’s said anything about that wind farm.
Speaker: I think it’s been there, to be honest with you, since like 2016 or 17. It’s been there a long time. Is it that old? Yeah, yeah, yeah, yeah. So when we were talk, when we’ve been talking through and it gets lost in the shuffle and it shouldn’t, because that’s really the first offshore wind farm in the United States.
We keep talking about all these big, you know, utility scale massive things, but that is a utility scale wind farm as well. There’s fi, correct me if I’m wrong, Yolanda, is it five turbos or six? It’s five. Their decent sized turbines are sitting on jackets. They’re just, uh, they’re, they’re only a couple miles offshore.
They’re not way offshore. But throughout all of these issues that we’ve had, um, with [00:03:00] these injunctions and stopping construction and stopping this and reviewing permits and all these things, block Island has just been spinning, producing power, uh, for the locals there off the coast of Rhode Island. So we.
What were our, the question was is, okay, all these other wind farms that are partially constructed, have they been spinning? Are they producing power? And my mind goes to this, um, as a risk reduction effort. I wonder if, uh, the cable, if the cable lay timelines were what they were. Right. So would you now, I guess as a risk reduction effort, and this seems really silly to have to think about this.
If you have your offshore substation, was the, was the main export cable connected to some of these like revolution wind where they have the injunction right now? Was that export cable connected and were the inter array cables regularly connected to turbines and them coming online? Do, do, do, do, do. Like, it wasn’t like a COD, we turned the switch and we had to wait for all 62 turbines.
Right. So to our [00:04:00] knowledge and, and, uh, please reach out to any of us on LinkedIn or an email or whatever to our knowledge. The turbines that are in production have still have been spinning. It’s the construction activities that have been stopped, but now. Hey, revolution wind is 90% complete and they’re back out and running, uh, on construction activities as of today.
Speaker 2: It was in the last 48 hours. So this, this is a good sign because I think as the other wind farms go through the courts, they’re gonna essentially run through this, this same judge I that. Tends to happen because they have done all the research already. So you, you likely get the same outcome for all the other wind farms, although they have to go through the process.
You can’t do like a class action, at least that’s doesn’t appear to be in play at the minute. Uh, they’re all gonna have to go through this little bit of a process. But what the judge is saying essentially is the concern from the Department of War, and then the Department of Interior is. [00:05:00] Make believe. I, I don’t wanna frame it.
It’s not framed that way, the way it’s written. There’s a lot more legalistic terms about it. But it basically, they’re saying they tried to stop it before they didn’t get the result they wanted. The Trump administration didn’t get the result they wanted. So the Trump administration ramped it up by saying it was something that was classified in, in part of the Department of War.
The judge isn’t buying it. So the, the, the early action. I think what we initially talked about this, everybody, I think the early feeling was they’re trying to stop it, but the fact that they’re trying to stop it just because, and just start pulling permits is not gonna stand outta the court. And when they want to come back and do it again, they’re not likely to win.
If they would. Kept their ammunition dry and just from the beginning said it’s something classified as something defense related that Trump administration probably would’ve had a better shot at this. But now it just seems like everything’s just gonna lead down the pathway where all these projects get finished.
Speaker: Yeah, I think that specific judge probably was listening to the [00:06:00] Uptime podcast last week for his research. Um, listen to, to our opinions that we talked about here, saying that this is kind of all bs. It’s not gonna fly. Uh, but what we’re sitting at here is like Revolution Wind was, had the injunction against it.
Uh, empire Wind had an injunction again, but they were awaiting a similar ruling. So hopefully that’s actually supposed to go down today. That’s Wednesday. Uh, this is, so we’re recording this on Wednesday. Um, and then Dominion is, has, is suing as well, and their, uh, hearing is on Friday. In two, two days from now.
And I would expect, I mean, it’s the same, same judge, same piece of papers, like it’s going to be the same result. Some numbers to throw at this thing. Now, just so the listeners know the impact of this, uh, dominion for the Coastal Virginia Offshore Wind Project, they say that their pause in construction is costing them $5 million a day, and that is.
That’s a pretty round number. It’s a conservative number to be honest with you. For officer operations, how many vessels and how much stuff is out there? That makes sense. Yep. [00:07:00] 5 million. So $5 million a day. And that’s one of the wind farms. Uh, coastal, Virginia Wind Farm is an $11 billion project. With, uh, it’s like 176 turbines.
I think something to that, like it’s, it’s got enough power, it’s gonna have enough production out there to power up, like, uh, like 650,000 homes when it’s done. So there’s five projects suspended right now. I’m continuing with the numbers. Um, well, five, there’s four now. Revolution’s back running, right? So five and there’s four.
Uh, four still stopped. And of those five is 28. Billion dollars in combined capital at risk, right? So you can understand why some of these companies are worried, right? They’re this is, this is not peanuts. Um, so you saw a little bump in like Ted stock in the markets when this, this, uh, revolution wind, uh, injunction was stopped.
Uh, but. You also see that, uh, Moody’s is a credit [00:08:00] rating. They’ve lowered ORs, Ted’s um, rating from stable to negative, given that political risk.
Speaker 2: Well, if you haven’t been paying attention, wind energy O and m Australia 2026 is happening relatively soon. It’s gonna be February 17th and 18th. It’s gonna be at the Pullman Hotel downtown Melbourne.
And we are all looking forward to it. The, the roster and the agenda is, is nearly assembled at this point. Uh, we have a, a couple of last minute speakers, but uh, I’m looking at the agenda and like, wow, if you work in o and m or even are around wind turbines, this is the place to be in February. From my
Speaker: seat.
It’s pretty, it’s, it’s, it’s shaping up for pretty fun. My phone has just been inundated with text message and WhatsApp of when are you traveling? What are your dates looking forward to, and I wanna say this right, Rosie. Looking forward to Melvin. Did I get it? Did I do it okay.
Speaker 3: You know how to say it.
Speaker: So, so we’re, we’re really looking forward to, we’ve got a bunch of people traveling from around the [00:09:00] world, uh, to come and share their collective knowledge, uh, and learn from the Australians about how they’re doing things, what the, what the risks are, what the problems are, uh, really looking forward to the environment down there, like we had last year was very.
Collaborative, the conversations are flowing. Um, so we’re looking forward to it, uh, in a big way from our seats. Over here,
Speaker 2: we are announcing a lightning workshop, and that workshop will be answering all your lightning questions in regards to your turbines Now. Typically when we do this, it’s about $10,000 per seat, and this will be free as part of WMA 2026.
We’re gonna talk about some of the lightning physics, what’s actually happening in the field versus what the OEMs are saying and what the IEC specification indicates. And the big one is force majeure. A lot of operators are paying for damages that are well within the IEC specification, and we’ll explain.[00:10:00]
What that is all about and what you can do to save yourself literally millions of dollars. But that is only possible if you go to Woma 2020 six.com and register today because we’re running outta seats. Once they’re gone, they’re gone. But this is a great opportunity to get your lightning questions answered.
And Rosemary promised me that we’re gonna talk about Vestus turbines. Siemens turbines. GE Renova turbines. Nordex turbines. So if you have Nordex turbines, Sulan turbines, bring the turbine. Type, we’ll talk about it. We’ll get your questions answered, and the goal is that everybody at at Wilma 2026 is gonna go home and save themselves millions of dollars in 26 and millions of dollars in 27 and all the years after, because this Lightning workshop is going to take care of those really frustrating lightning questions that just don’t get answered.
We’re gonna do it right there. Sign up today.
Speaker 3: [00:11:00] You know what, I’m really looking forward to that session and especially ’cause I’ve got a couple of new staff or new-ish staff at, it’s a great way to get them up to speed on lightning. And I think that actually like the majority of people, even if you are struggling with lightning problems every day, I bet that there is a whole bunch that you could learn about the underlying physics of lightning.
And there’s not so many places to find that in the world. I have looked, um, for my staff training, where is the course that I can send them to, to understand all about lightning? I know when I started atm, I had a, an intro session, one-on-one with the, you know, chief Lightning guy there. That’s not so easy to come by, and this is the opportunity where you can get that and better because it’s information about every, every OEM and a bit of a better understanding about how it works so that you can, you know, one of the things that I find working with Lightning is a lot of force MA mature claims.
And then, um, the OEMs, they try and bamboozle you with this like scientific sounding talk. If you understand better, then you’ll be able to do better in those discussions. [00:12:00] So I would highly recommend attending if you can swing the Monday as well.
Speaker: If you wanna attend now and you’re coming to the events.
Reach out to, you can reach out to me directly because what we want to do now is collect, uh, as much information as possible about the specific turbine types of the, that the people in the room are gonna be responsible for. So we can tailor those messages, um, to help you out directly. So feel free to reach out to me, joel.saxo, SAXU m@wglightning.com and uh, we’ll be squared away and ready to roll on Monday.
I think that’s Monday the 16th.
Speaker 2: So while American offshore wind fights for survival in the courts, British offshore wind just had its biggest day ever. The United Kingdom awarded contracts for 8.4 gigawatts. That’s right. 8.4 gigawatts of new offshore wind capacity, the largest auction in European history.
Holy smokes guys. The price came in at about 91 pounds per megawatt hour, and that’s 2024 pounds. [00:13:00] Uh, and that’s roughly 40% cheaper than building a new. Gas plant Energy Secretary Ed Milliband called it a monumental step towards the country’s 2030 clean power goals and that it is, uh, critics say that prices are still higher than previous auctions, and one that the government faces challenges connecting all this new capacity to the grid, and they do, uh, transmission is a limiting factor here, but in terms of where the UK is headed.
Putting in gigawatts of offshore wind is going to disconnect them from a lot of need on the gas supply and other energy sources. It’s a massive auction round. This was way above what I remember being, uh. Talked about when we were in Scotland just a couple of weeks ago, Joel.
Speaker: Yeah, that’s what I was gonna say.
You know, when we were, when we were up with the, or E Catapult event, and we talked to a lot of the different organizations of their OWGP and um, you know, the course, the or e Catapult folks and, and, and a [00:14:00] few others, they were really excited about AR seven. They were like, oh, we’re, we’re so excited. It’s gonna come down, it’s gonna be great.
I didn’t expect these kind of numbers to come out of this thing. Right? ’cause we know that, um, they’ve got about, uh, the UK currently has about. 16 and a half or so gigawatts of offshore wind capacity, um, with, you know, they got a bunch under construction, it’s like 11 under construction, but their goal is to have 43 gigawatts by 2030.
So,
Speaker 2: man.
Speaker: Yeah. And, and when 2030, put this into Conte Con context now. This is one of our first podcasts of the new year. That’s only four years away. Right. It’s soon. And, and to, to be able to do that. So you’re saying they got 16, they go some round numbers. They got 16 now. Pro producing 11 in the pipe, 11 being constructed.
So get that to 27. That’s another 16 gigawatts of wind. They want, they that are not under construction today that they want to have completed in the next four years. That is a monumental effort now. We know that there’s some grid grid complications and connection [00:15:00] requirements and things that will slow that down, but just thinking about remove the grid idea, just thinking about the amount of effort to get those kind of large capital projects done in that short of timeline.
Kudos to the UK ’cause they’re unlocking a lot of, um, a lot of private investment, a lot of effort to get these things, but they’re literally doing the inverse of what we’re doing in the United States right now.
Speaker 2: There would be about a total of 550, 615 ish megawatt turbines in the water. That does seem doable though.
The big question is who’s gonna be providing those turbines? That’s a. Massive order. Whoever the salesperson is involved in that transaction is gonna be very happy. Well, the interesting thing here
Speaker: too is the global context of assets to be able to deliver this. We just got done talking about the troubles at these wind farms in the United States.
As soon as these. Wind farms are finished. There’s not more of them coming to construction phase shortly, right? So all of these assets, all these jack up vessels, these installation vessels, these specialized cable lay vessels, they [00:16:00]can, they can fuel up and freaking head right across, back across the Atlantic and start working on these things.
If the pre all of the engineering and, and the turbine deliveries are ready to roll the vessels, uh, ’cause that you, that, you know, two years ago that was a problem. We were all. Forecasting. Oh, we have this forecasted problem of a shortage of vessels and assets to be able to do installs. And now with the US kind of, basically, once we’re done with the wind farms, we’re working on offshore, now we’re shutting it down.
It frees those back up, right? So the vessels will be there, be ready to roll. You’ll have people coming off of construction projects that know what’s going on, right? That, that know how to, to work these things. So the, the people, the vessels that will be ready to roll it is just, can we get the cables, the mono piles, the turbines and the cells, the blades, all done in time, uh, to make this happen And, and.
I know I’m rambling now, but after leaving that or e Catapult event and talking to some of the people, um, that are supporting those [00:17:00] funds over there, uh, being injected from the, uh, the government, I think that they’ve got
Speaker 2: the, the money flowing over there to get it done too. The big winner in the auction round was RWE and they.
Almost seven gigawatts. So that was a larger share of the 8.4 gigawatts. RWE obviously has a relationship with Vestus. Is that where this is gonna go? They’re gonna be, uh, installing vestus turbines. And where were those tur turbines? As I was informed by Scottish gentlemen, I won’t name names. Uh, will those turbines be built in the uk?
Speaker 3: It’s a lot. It’s a, it’s one of the biggest challenges with, um, the supply chain for wind energy is that it just is so lumpy. So, you know, you get, um, uh. You get huge eight gigawatts all at once and then you have years of, you know, just not much. Not much, not much going on. I mean, for sure they’re not gonna be just building [00:18:00] eight gigawatts worth of, um, wind turbines in the UK in the next couple of years because they would also have to build the capacity to manufacture that and, and then would wanna be building cocks every couple of years for, you know, the next 10 or 20 years.
So, yeah, of course they’re gonna be manufacturing. At facilities around the world and, and transporting them. But, um, yeah, I just, I don’t know. It’s one of the things that I just. Constantly shake my head about is like, how come, especially when projects are government supported, when plans are government supported, why, why can’t we do a better job of smoothing things out so that you can have, you know, for example, local manufacturing because everyone knows that they’ve got a secure pipeline.
It’s just when the government’s involved, it should be possible.
Speaker 2: At least the UK has been putting forth some. Pretty big numbers to support a local supply chain. When we were over in Scotland, they announced 300 million pounds, and that was just one of several. That’s gonna happen over the next year. There will be a [00:19:00] near a billion pounds be put into the supply chain, which will make a dramatic difference.
But I think you’re right. Also, it’s, they’re gonna ramp up and then they, it’s gonna ramp down. They have to find a way to feed the global marketplace at some point, be because the technology and the people are there. It’s a question of. How do you sustain it for a 20, 30 year period? That’s a different question.
Speaker 3: I do agree that the UK is doing a better job than probably anybody else. Um, it it’s just that they, the way that they have chosen to organize these auctions and the government support and the planning just means that they have that, that this is the perfect conditions to, you know. Make a smooth rollout and you know, take care of all this.
And so I just a bit frustrated that they’re not doing more. But you are right that they’re doing the best probably
Speaker 4: once all of these are in service though, aren’t there quite a bit of aftermarket products that are available in the UK
Speaker: on the service then? I think there’s more.
Speaker 4: Which, I mean, that’s good. A good part of it, right?
Speaker: If we’re talking Vestas, so, so let’s just round this [00:20:00] up too. If we’re talking vest’s production for blades in Europe, you have two facilities in Denmark that build V 2 36 blades. You have one facility in Italy that builds V 2 36 blades, Taiwan, but they build them for the APAC market. Of course. Um, Poland had a, has one on hold right now, V 2 36 as well.
Well, they just bought that factory from LM up in Poland also. That’s, but I think that’s for onshore term, onshore blades. Oh, yes, sure. And then Scotland has, they have the proposed facility in, in Laith. That there, that’s kind of on hold as well. So if that one’s proposed, I’m sure, hey, if we get a big order, they’ll spin that up quick because they’ll get, I am, I would imagine someone o you know, one of the, one of the funds to spool up a little bit of money, boom, boom, boom.
’cause they’re turning into local jobs. Local supply
Speaker 2: chain does this then create the condition where a lot of wind turbines, like when we were in Scotland, a lot of those wind turbines are. Gonna reach 20 years old, maybe a little bit older here over the next five years where they will [00:21:00] need to be repowered upgraded, whatever’s gonna happen there.
If you had internal manufacturing. In country that would, you’d think lower the price to go do that. That will be a big effort just like it is in Spain right now.
Speaker: The trouble there though too, is if you’re using local content in, in the uk, the labor prices are so much
Speaker 2: higher. I’m gonna go back to Rosie’s point about sort of the way energy is sold worldwide.
UK has high energy prices, mostly because they are buying energy from other countries and it’s expensive to get it in country. So yes, they can have higher labor prices and still be lower cost compared to the alternatives. It, it’s not the same equation in the US versus uk. It’s, it’s totally different economics, but.
If they get enough power generation, which I think the UK will, they’re gonna offload that and they’re already doing it now. So you can send power to France, send power up [00:22:00] north. There’s ways to sell that extra power and help pay for the system you built. That would make a a lot of sense. It’s very similar to what the Saudis have done for.
Dang near 80 years, which is fill tankers full of oil and sell it. This is a little bit different that we’re just sending electrons through the water to adjacent European countries. It does seem like a plan. I hope they’re sending ’em through a cable in the water and not just into the water. Well, here’s the thing that was concerning early on.
They’re gonna turn it into hydrogen and put it on a ship and send it over to France. Like that didn’t make any sense at all. Uh. Cable’s on the way to do it. Right.
Speaker: And actually, Alan, you and I did have a conversation with someone not too long ago about that triage market and how the project where they put that, that that trans, that HVDC cable next to the tunnel it, and it made and it like paid for itself in a year or something.
Was that like, that they didn’t wanna really tell us like, yeah, it paid for itself in a year. Like it was a, the ROI was like on a, like a $500 million [00:23:00]project or something. That’s crazy. Um, but yeah, that’s the same. That’s, that is, I would say part of the big push in the uk there is, uh, then they can triage that power and send it, send it back across.
Um, like I think Nord Link is the, the cable between Peterhead and Norway, right? So you have, you have a triage market going across to the Scandinavian countries. You have the triage market going to mainland eu. Um, and in when they have big time wind, they’re gonna be able to do it. So when you have an RWE.
Looking at seven gigawatts of, uh, possibility that they just, uh, just procured. Game on. I love it. I think it’s gonna be cool. I’m, I’m happy to see it blow
Speaker 2: up. Canada is getting serious about offshore wind and international developers are paying attention. Q Energy, France and its South Korean partner. Hawa Ocean have submitted applications to develop wind projects off Nova Scotia’s Coast.
The province has big ambitions. Premier, Tim Houston wants to license enough. Offshore [00:24:00] wind to produce 40 gigawatts of power far more than Nova Scotia would ever need. Uh, the extra electricity could supply more than a quarter of Canada’s total demand. If all goes according to plan, the first turbines could be spinning by 2035.
Now, Joel. Yeah, some of this power will go to Canada, but there’s a huge market in the United States also for this power and the capacity factor up in Nova Scotia offshore is really good. Yeah. It’s uh, it
Speaker: is simply, it’s stellar, right? Uh, that whole No, Nova Scotia, new Brunswick, Newfoundland, that whole e even Maritimes of Canada.
The wind, the wind never stops blowing, right? Like I, I go up there every once in a while ’cause my wife is from up there and, uh, it’s miserable sometimes even in the middle of summer. Um, so the, the wind resource is fantastic. The, it, it is a boom or will be a boom for the Canadian market, right? There’re always [00:25:00] that maritime community, they’re always looking for, for, uh, new jobs.
New jobs, new jobs. And this is gonna bring them to them. Um, one thing I wanna flag here is when I know this, when this announcement came out. And I reached out to Tim Houston’s office to try to get him on the podcast, and I haven’t gotten a response yet. Nova Scotia. So if someone that’s listening can get ahold of Tim Houston, we’d love to talk to him about the plans for Nova Scotia.
Um, but, but we see that just like we see over overseas, the triage market of we’re making power, we can sell it. You know, we balance out the prices, we can sell it to other places. From our seats here we’ve been talking about. The electricity demand on the east coast of the United States for, for years and how it is just climbing, climbing, climbing, especially AI data centers.
Virginia is a hub of this, right? They need power and we’re shooting ourselves in the foot, foot for offshore wind, plus also canceling pipelines and like there’s no extra generation going on there except for some solar plants where you can squeeze ’em in down in the Carolinas and whatnot. [00:26:00] There is a massive play here for the Canadians to be able to HVD see some power down to us.
Speaker 2: The offshore conditions off the coast of Nova Scotia are pretty rough, and the capacity factor being so high makes me think of some of the Brazilian wind farms where the capacity factor is over 50%. It’s amazing down there, but one of the outcomes of that has been early turbine problems. And I’m wondering if the Nova Scotia market is going to demand a different kind of turbine that is specifically built for those conditions.
It’s cold, really cold. It’s really windy. There’s a lot of moisture in the air, right? So the salt is gonna be bad. Uh, and then the sea life too, right? There’s a lot of, uh, sea life off the coast of the Nova Scotia, which everybody’s gonna be concerned about. Obviously, as this gets rolling. How do we think about this?
And who’s gonna be the manufacturer of turbines for Canada? Is it gonna be Nordics? Well,
Speaker: let’s start from the ground up there. So from the or ground up, it’s, how about sea [00:27:00] floor up? Let’s start from there. There is a lot of really, really, if you’ve ever worked in the offshore world, the o offshore, maritime Canadian universities that focus on the, on offshore construction, they produce some of the best engineers for those markets, right?
So if you go down to Houston, Texas where there’s offshore oil and gas companies and engineering companies everywhere, you run into Canadians from the Maritimes all over the place ’cause they’re really good at what they do. Um, they are developing or they have developed offshore oil and gas platforms.
Off of the coast of Newfoundland and up, up in that area. And there’s some crazy stuff you have to compete with, right? So you have icebergs up there. There’s no icebergs in the North Atlantic that like, you know, horn seats, internet cruising through horn C3 with icebergs. So they’ve, they’ve engineered and created foundations and things that can deal with that, those situations up there.
But you also have to remember that you’re in the Canadian Shield, which is, um, the Canadian Shield is a geotechnical formation, right? So it’s very rocky. Um, and it’s not [00:28:00] like, uh, the other places where we’re putting fixed bottom wind in where you just pound the piles into the sand. That’s not how it’s going to go, uh, up in Canada there.
So there’s some different engineering that’s going to have to take place for the foundations, but like you said, Alan Turbine specific. It blows up there. Right. And we have seen onshore, even in the United States, when you get to areas that have high capacity burning out main bearings, burning out generators prematurely because the capacity factor is so high and those turbines are just churning.
Um, I, I don’t know if any of the offshore wind turbine manufacturers are adjusting any designs specifically for any markets. I, I just don’t know that. Um, but they may run into some. Some tough stuff up there, right? You might run into some, some overspeeding main bearings and some maintenance issues, specifically in the wintertime ’cause it is nasty up there.
Speaker 2: Well, if you have 40 gigawatts of capacity, you have several thousand turbines, you wanna make sure really [00:29:00] sure that the blade design is right, that the gearbox is right if you have a gearbox, and that everything is essentially over-designed, heated. You can have deicing systems on it, I would assume that would be something you would be thinking about.
You do the same thing for the monopoles. The whole assembly’s gotta be, have a, just a different thought process than a turbine. You would stick off the coast of Germany. Still rough conditions at times, but not like Nova Scotia.
Speaker: One, one other thing there to think about too that we haven’t dealt with, um.
In such extreme levels is the, the off the coast of No. Nova Scotia is the Bay of Fundee. If you know anything about the Bay of Fundee, it is the highest tide swings in the world. So the tide swings at certain times of the year, can be upwards of 10 meters in a 12 hour period in this area of, of the ocean.
And that comes with it. Different time, different types of, um, one of the difficult things for tide swings is it creates subsid currents. [00:30:00] Subsid currents are, are really, really, really bad, nasty. Against rocks and for any kind of cable lay activities and longevity of cable lay scour protection around turbines and stuff like that.
So that’s another thing that subsea that we really haven’t spoke about.
Speaker 3: You know, I knew when you say Bay Bay of funding, I’m like, I know that I have heard that place before and it’s when I was researching for. Tidal power videos for Tidal Stream. It’s like the best place to, to generate electricity from.
Yeah, from Tidal Stream. So I guess if you are gonna be whacking wind turbines in there anyway, maybe you can share some infrastructure and Yeah. Eca a little bit, a little bit more from your, your project.
Speaker 2: that wraps up another episode of the Uptime Wind Energy Podcast. If today’s discussion sparked any questions or ideas. We’d love to hear from you. Just reach out to us on LinkedIn and don’t forget to subscribe so you never miss an episode.
And if you found value in today’s conversation, please leave us a review. It really helps other wind energy professionals discover the show For Rosie, Yolanda and Joel, I’m Alan Hall, and we’ll see you here next week on the Uptime [00:36:00] Wind Energy Podcast.
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