Weather Guard Lightning Tech

Siemens Gamesa, Vestas, Ørsted Updates: Finances, Fallen Rotors, and Offshore Wind Outlook
This week we analyze recent news from Siemens Gamesa, Vestas, and Ørsted, including financial struggles, layoffs, and plans to regain profitability. The episode also covers offshore wind manufacturing expansion in the U.S., a fallen wind turbine rotor in Norway, and the need for better data sharing among wind farm owners and operators. Plus, if you’re attending ACP O&M in San Diego, sign up for the IntelStor event!
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Joel Saxum: So Allen is in Denmark at the Leading Edge Symposium DTU in Roskilde there with a lot of really smart people talking about leading edge erosion issues. What are the newest protections out there? What kind of projects going on in the world? From our side of view, how does aerodynamics leading edge roughness affect lightning?
A lot of really cool things going on there. Of course, DTU is always doing great work. But that’s where Allen is today. So this week I’m going to try to be my best Allen. I’m Joel Saxum, the chief commercial officer of Weather Guard Lightning Tech. And I’m here with international renewables expert, Rosemary Barnes.
Plus, wind energy economics and data guru Phil Totaro from IntelStor. This is the Uptime Wind Energy Podcast.
So speaking about offshore wind in the United States and how the IRA bill is interacting and if it’s kicking off manufacturing facilities or what’s actually happening on the ground, today there was an announcement by US Forged Rings Inc. It’d be the USA’s only integrated one stop shop manufacturer for offshore wind towers and steel forging.
What they released today in an article was, or in a press release was, the fact that they’re going to have two factories up and running on the east coast. One by 2026, one by 2027. And they’re going to work together. To build these large scale steel infrastructure that we need for offshore wind in the U.
S. So one of one of the factories is going to output towers. They’re saying a hundred towers per year with a 35 foot diameter on them and the other factory that’s going to be completing 2027. It’s for forging and ring rolling, and they can do up to 40 feet in diameter. So what this will do is be able to help the U.
S. market create its own transition pieces, its own, bearing races, its own caps for the towers and whatnot. But Phil, what are the larger reaching implications of this press release?
Philip Totaro: It’s extremely good for the offshore wind market where, a company is looking to obviously take advantage of the 45x manufacturing tax credits.
What’s interesting about this, though, is that in addition to this serving the offshore wind market, assuming that this factory exists, we don’t actually have a lot of particularly forging capabilities in the United States for anything above, let’s say, like a megawatt onshore turbine. We usually have to import a lot of that stuff from Europe.
Even Asia doesn’t have the, a full capability to do, enormous 6, onshore turbines. A lot of that they’re actually getting from Europe as well. Surprisingly, to, to most. The fact that this, these factories will exist, and, the tower factory with, it’s going to start off at 100 units a year and they said that it’s going to potentially expand to 200 units a year.
We’ll see. Maybe some of those units will actually be dedicated to to some onshore wind turbines as well. If we can get the offshore market really going, then they’ll be fully utilized in building offshore towers and transition pieces. But there is that possibility that we can leverage them for an expansion in the onshore market too.
Joel Saxum: Yeah, some interesting stuff here in their press release, they also are talking about being able to use some of the capabilities that they’ll have for offshore floating turbines, because if you have a spar design or other kind of designs, they need the large tubular pieces, right? This could enable the floating offshore wind in the US.
Of course, we’re looking at that on the West Coast. With the deeper water out there and there is some leases floating around out there on the east coast for further out past what we’ve been talking about lately into deeper water. Also with that forging and ring rolling factory on the other side you’re looking at yaw rings, pitch bearings, main shaft bearings and other large components.
The another thought I have here, Phil or Rosemary for that matter as well. Do you think that the capabilities of this factory could be used for other things than offshore wind, or will it be specifically just offshore wind? Could it be used for other large industrial facilities?
Philip Totaro: I don’t know enough about it to say what else this could be used for, and frankly, why, if we have oil and gas fabrication facilities, why they aren’t Doing something for offshore wind and we’re just like converting something that already exists for oil and gas Maybe they don’t need anything that big.
I don’t but we’ll make use of these factories I’m telling you like whether it’s offshore wind onshore wind, whatever. We’ll make use of these factories.
Joel Saxum: I think the difference there in oil and gas is when you have an oil and gas jacket or Other infrastructure. It’s so specialized That it’s a one off, right?
They’re not building a factory to make these things. They’re either ordering that one piece or that two pieces or whatever it is from somewhere that can already complete it, or they’re piecing them together. I’ve seen a lot of jacket foundations that are not rolled steel. They’re pieces. That are all welded together, right?
So they build a facility and do that custom fab. Not the case when you’re going to scale.
Rosemary Barnes: I think that the unique thing about this facility is the size, like the large diameters that they can do, which means I can do wind turbine towers. And not familiar with absolutely every single thing that’s made out of steel, but I don’t think that anything else needs those really large diameters.
Obviously if you’ve got a factory that’s big enough to make really big stuff, it could make smaller stuff if it wanted to, but yeah, that isn’t such a big challenge and there’d be other competitors that are already filling that need. So I’m guessing it’s going to be fairly specialized.
Philip Totaro: Yeah, the only thing I would think of might be pressure vessels for any various number of applications. The only thing is that’s also a specialized. Fabrication capability, so I’m not quite sure if they’d actually be able to, again I think these factories are intended to be offshore wind.
There is obviously a possibility, as I mentioned, of being able to leverage it for larger onshore wind machines as well either for domestic consumption or frankly, even an export market, because when you contemplate. We could be fabricating parts here in the U. S. for export to China, for instance.
That is a possibility. Or even, actually, Australia, because there’s a lot of projects in Australia that are proposing six and seven and eight megawatt turbines. Unless they’re gonna make it a point to, to build their own localized fabrication facilities. Who knows we could be we could be making some parts for them.
Rosemary Barnes: Yeah, I think I know that there’s plenty of people that have in mind that is a really good entry point into wind turbine manufacturing. It’s 1 of the easier things and. Australia already makes some towers some parts of towers at least. So it’s, not such a stretch that we would move up to that.
We do have a steel industry. It’s not what it used to be, we’ve got all the iron ore. There’s a lot of work now to move towards processing that into steel in Australia and then. Yeah, it’s already I’m not the only one that’s been saying for a decade or more how crazy it is that we take our iron ore, send that to China, they turn it into steel, and then, whatever else they make from the steel and then send that back to us.
It’s. It’s not good for Australia, keeping the real value from our minerals in Australia, the digging up of the mineral is, like the least valuable part of that whole process, values added all the way along through the manufacturing chain. And yeah, aside from it being economically stupid, it’s also environmentally stupid because, obviously if you send the unrefined steel over, if you’ve got like 50% concentrated iron ore, and when that comes back, you’ve got double the volume that you’ve got to send over there compared to what comes back.
So you can save a lot in shipping and. Yeah, so we are, we should have been doing it from the start, but I think, the whole world was really into globalization and just low costs at any non financial costs. We were prepared to, give up nearly anything if the cost of steel or whatever other material was lower and the whole world’s moving away from that now and slower than I would have liked, but Australia has all the pieces in place to.
Like a wind turbine tower should be the very easiest thing that we should definitely be manufacturing in Australia. And yeah, I am hopeful that we will within a few years.
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Joel Saxum: So news out of Denmark today, guys. Ørsted is suspending its dividend and cutting some jobs as it changes how it addresses offshore markets. So the wind developer says it needs to create a leaner and more efficient company. This is the words from Mads Nipper today. We’ve prioritized projects within our portfolio and are implementing significant changes in our business, including revising our operational model to reduce risks.
We now present a robust business plan with an uncompromising focus on value creation. Plan to install more than double our current installed capacity of renewable energy by 2030. The thing I like here that he said and I haven’t dug completely into it yet is that we are presenting a robust business plan.
This is something that we haven’t heard of some other players in the wind industry. I. e. Siemens, Gamesa, and whatever that they’re doing, what is their plan? Ørsted has one now. Phil, what does this mean for Ørsted going forward?
Philip Totaro: As they indicated, they’re getting rid of some of the fluff, let’s call it.
Which is going to include some of the Power to X projects that they had on the menu. Some of the hydrogen production, et cetera, et cetera, and focusing on core business, focusing also on core markets. And on. Doubling down in their their view on, offshore wind again, core European markets but also Taiwan and they’re obviously going to continue what they’ve been trying to do in the U.
S. South Fork is still, on on track for coming online this year. And we’ll see what happens with some of the other projects that they’re still pursuing and involved with. They may end up still divesting some of the the projects here in the U. S. Eversource also wants out if both project developers are looking to get out, then that’s potentially an opportunity for someone else to get in.
I think again, as we’ve talked about, it is a good thing that they present a a business plan that provides investors and shareholders more confidence, because that’s the key as far as what was lacking, and it’s we do liken it to other companies like Siemens Gamesa, Ørsted just came out a few months ago and said we have a problem.
But they didn’t really say we have a solution, too, and here’s what it is. It’s just, All they did was diagnose the fact that they have issues. And now they’ve at least put pen to paper and said, Alright, we, here’s how we’re gonna dig ourselves out of the hole. It’s unfortunate that not only the 800 jobs that they’re going to be cutting, but their long time chairman also stepped down as a result.
And, as we’ve also talked about, one would presume that Mad Snipper’s job also isn’t safe, but they’re at least leaving him in his current position until this can, this kind of transition can occur, and then they’ll find someone else to champion the new era of Ørsted.
Joel Saxum: Yeah, interesting here.
They’re the market that some of their plan. Okay. Phil, you mentioned it. They’re cut 800 jobs. They have about 9, 000 people globally. So that means that just under 10 percent of their staff is looking for pink slips. That’s not the best way to be, but. It’s reality. And the markets that they’re going to withdraw from our Norway, Spain and Portugal.
Now, Norway, Spain and Portugal for the most, a lot of that is floating to my knowledge. They’re not as advanced as the projects that they operate right now in the North Sea. But it is interesting as well. The with the chairman stepping down. So Thomas Tuna Anderson has been there for 10 years.
He’s exiting that role. And also we had, this past fall, Daniel Lerup, the chief operating officer. Or the finance chief and then Richard Hunter, the chief operating officer left as well. So there has been, we have talked about how long will Mads Nipper keep his job. But there has been a lot of changes from the board of directors all the way down.
And we’re all hopeful that Ørsted comes out of this thing. A shinier new product because them being healthy is good for the offshore wind energy market as a whole Rosemary, any thoughts on this Ørsted move and them pulling back a little bit, what it means for their future.
Rosemary Barnes: Yeah I think that they had the right idea with their strategy to, get in early with the U S market. A lot of people had that idea and I think that’s why we saw such a, like a feeding frenzy for some of those early auctions. Everybody wanted in, and they got in, but I don’t think people anticipated how I don’t know, wishy washy, is that the right term? The environment in the U. S. was?
Philip Totaro: Yes. Yes, it is.
Joel Saxum: Yeah, it’s perfect.
Rosemary Barnes: Yeah, I think it’s a huge cultural difference between Denmark and the U. S. And I’ve lived in both countries, the U. S. just for one year back in. 20 years ago. So it’s been a while. But Denmark is characterized by just that they’ve got immense trust in, other people and in governments.
I think that they’re like the most trusting country in the world, or at least one of them. Which I think that they might as a, Danish company culturally. They might have been surprised that when you enter into agreements with governments that things don’t, there isn’t a lot of trust going back the other way, so I think that they might’ve been surprised by that relationship and so that the cultural clash might’ve been more than what they’re expecting. But I do still think that it’s the right move, but just that it was too soon. The U. S. isn’t actually ready for all of these European companies to come in and ramp up offshore wind really fast in the U.
S. We all wish that it was true and I wouldn’t have predicted these problems a couple of years ago, but here we are. But that said, I do like the company. It’s just such a great story of a company that went from being an oil and gas company that was literally in their name and now they’re a renewable energy company.
I don’t know if there’s any others in the world that have actually managed to do that. Like I am rooting for them, for the company. I actually, I have a note I sent a reminder in my calendar to buy some Austered stocks once this kind of settled down because it fell so far. And I don’t really believe that there’s anything wrong, anything much has changed with the fundamentals of the company.
I still haven’t done that yet. And just mostly out of forgetfulness, but it’s nice to say that they feel a little bit more because now I can get an extra couple of percent. Since they’re lower don’t take that as stock advice. If you looked at the, returns that I make in my portfolio, then you would certainly not come to me for stock advice.
But yeah, the size of the layoffs was interesting. What is it like nearly 10 percent of their workforce. And I will say. Denmark is brutal, absolutely brutal for stuff like that. People might have the wrong idea that, Denmark is Scandinavia, everybody’s warm and fuzzy. And you might have heard like Swedish people tell you how it’s impossible to fire anyone as culturally similar as Denmark is to Sweden.
It is just absolutely not like that in the workforce. They they call their system. Flex security, I think, like flexible security. The flexibility is just the ability to ruthlessly just slash their workforce by 10 percent for, they don’t have to give that much of a reason or be that generous even in their payout to the staff that they let go of.
But the security is that for Danish people, it’s quite it’s quite secure in the amount of unemployment money that you’ll get for quite a long time while you’re looking for work, as long as you I can’t remember the exact setup. I think you have to be a member of a union or something similar to it, some kind of insurance to get that.
But I will say as a foreigner it’s, there’s no, no security for you there as a foreigner. So all the foreigners that the international workers that got laid off, that’s yeah, that is just as brutal as it sounds. So yeah it, it’s good for the company though, that they can make a big change when they need to better that than that they, limp along for the next decade, trying to scrimp and scrape enough to recover, this way, hopefully they can.
Get it all done in one go and then move forward with the stuff that’s going to be profitable in the near term and have the strength there to get back into the U. S. When the country is ready for it.
Joel Saxum: Rosemary, I don’t want to make you feel bad about your delay in the stock price, but back in the fall, not too long ago, a couple, two, three months ago, when they initially, Hey, we announced these write downs and stuff, their stock dropped to about.
11 and 80 cents us. And it’s already back up to 18.
Rosemary Barnes: There you go. So this is why you shouldn’t trust me for investment advice. I’ve missed the boat. I’m also, I’m very, I’m lazy as well with my investing. I. I do it when it occurs to me. And yeah, I’m definitely not someone that’s looking up stock prices every day and making a lot of trades.
I buy something and then I hold it for, as long as I can.
Joel Saxum: So guys sticking in the financial realm of things, you’re gonna talk about Vestas for a little bit. So Vestas’ return to profitability, however, not going to give a dividend either. And for good reason, their dividend would have been minuscule based on what their profitability was, but they are back in black and their discipline is paying off is what they’re stating in their report for the year.
So I’ll give you some numbers here. They made a full year operating profit before special items of 231 million euros. Compared to a loss of 1. 2 billion euros the year before, so that’s a big turnaround. They adjusted the operating profit in fourth quarter, was 191 million euros versus a loss of 514 million euros the year before.
So they’re beating analysts, they’re doing a bit better. The guidance that they’ve given, Investors forecast revenue this year of 16 to 18 billion euros. And the analysts are looking at 17. So they’re right in that same window with what the, they believe will be. So Henrik Andersen, the CEO has stated continued geopolitical volatility, as well as slow permitting and insufficient grid build out across markets are expected to cause.
Uncertainty in 2024. So Vestas is getting back to better health. This is something that we’ve talked about for the last few years was going to take a little while to happen, but it’s great. However, this is the angle I would like to talk at this one with you guys about, do you believe that some of the downfall of what Siemens has going on and them stopping selling their certain platforms right now in the market has led to an increase in Vestas?
Philip Totaro: Modestly, I’ll say, Joel a lot of this getting the Vestas getting back to profitability has more to do with a recovery in turbine prices, because, as you may recall in prior years, even Vestas came out and said that the average price they were seeing. For turbines was about 700, 000 U.
S. per megawatt. And that’s taking into account, markets where you’re selling turbines for a million a megawatt, but also markets where you’re selling for 600, And so now the average price, according to our own numbers at Intel Store, we’re seeing much higher turbine sale prices for projects that were closed last year, including, a lot of the 18 gigawatts order book that they announced last year.
But they’re quoting much higher now they’re around 900, 000 a megawatt megawatt, if not a little higher now in terms of the price quotes that they’re offering at this point for projects which presumably would be delivered to in the next two to, to three years.
Yes, the downfall of Siemens Gamesa has allowed Vestas to go gain some market share in markets where, they would have been competing with megawatt platform. The only reason I guess I’m hesitating on it is because I feel like, Vestas would have already been leading that.
Those markets anyway because while everybody still thinks that Siemens Gamesa makes a solid product even prior to the quality issues it just wasn’t always the favored turban and I don’t know if that comes down to perception of performance, perception of bankability. The service offerings that, or the quality of the service offering that’s received by an asset owner and operator.
Yeah, there’s there, again good news for Vestas in terms of getting back to profitability. It seems like most of the cost increase that they’ve been able to incur. Or that they’ve had to incur as a result of commodities and raw material costs going up has been passed on to customers i.
e. project developers. That’s good. But again, even with them not issuing a dividend, I think it’s fine from the standpoint of the shareholders in the company who will anticipate getting back to a higher dividend once that. Can presumably occur later on this year.
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Joel Saxum: So guys, Siemens Gamesa staff in Aruzury, Navarra will go on strike. We’ve been talking about them possibly going on strike in Spain there for a while. And it sounds like one of the factories has actually pulled the trigger and made it happen.
So what they’re saying is Aruzury is the only center in Navarra that has not adhered to the corporate office agreement with Siemens Gamesa. which is a clear discrimination. It looks like it’s going to affect 62 workers at the plant that they’re going to basically shut it down. So what are the ramifications for this in a plant like that, Rosemary?
Rosemary Barnes: It’s It’s an interruption.
Philip Totaro: This is the sort of thing that, they’ll do this occasionally, Vestas has suffered from temporary factory shutdowns in Spain. GE even had protests, going back a few years, LM factories in Spain as well in the past.
It’s usually like a very modest and temporary interruption. It’s not anything that’s gonna like dramatically impact production per se. But it’s one of those things that it’s, this is like the fourth different location since, Siemens has announced that they’ve had these product quality issues.
This is like the fourth location that said that they’re gonna go on strike and so it’s just culturally, I think they’re just facing a challenge there to provide reassurance, not only to investors and shareholders, but to their own staff to say, look, we’ve got a plan for getting ourselves out of this.
But we all need to pull together to be able to do that. And, obviously these 62 people feel like they’re not being treated equitably.
Joel Saxum: And that so that plan, like we’re saying, Ørsted came out with the, Hey, here’s our plan. Siemens Gamesa has a plan, they’re calling it the Mistral.
Plan to address some of these issues within the inside there. So their, they’ve actually came out now it’s quarterly earnings time, right? We’ve been talking a little stock market, a little finances here. So Siemens energy different, of course, than Siemens Gamesa right now dragging Siemens energy down on their quarterly reports a bit.
It looks if you were to take the quick numbers from Siemens energy. The revenues to 2 billion euros for this past fiscal year but that comes with a loss of or a reported EBITDA, which is basically your loss after everything else you pull out of it, of a negative 900 million.
So pretty tough times to be in the Siemens Comesa finance department. But what is, how does that overall feel affect with Siemens, that if, when you take into consideration Siemens Energy as the parent and Siemens Gamesa looking like this, are they going to have to make some big moves to save this thing financially, Phil?
Philip Totaro: There’s still struggling with a couple of different things at the moment. It sounds like they obviously have their head around what the quality issues are. They haven’t quite effectively communicated that to investors and shareholders because they’re still clamoring for what exactly is the full extent of this?
And management came out even today when they released their numbers. And said, we aren’t expecting anything worse than what we’ve already told you to paraphrase which I guess is good from one perspective, but it’s also unsettling because, people want to either have confidence that you’ve, tied this off and we can move on, or, and get back to selling or it’s something where, oh we were, grossly or disproportionately over predicting what we were going to spend, the 5 billion loss that, that we were going to have, it’s actually not going to be 5 billion.
It’s only going to be 3 or whatever, and it’s oh, my God, that’s great to an extra 2 billion that, that we don’t have to waste on losses. That’s the sort of thing that investors shareholders want to see. And here And they’re still not seeing and hearing that from Siemens Gamesa management and that’s where I think we still have a problem here, they keep trying to provide assurances about the quality issues are, understood and are being dealt with, but again, even from that perspective, I think since the start of this whole thing, Siemens Gamesa has just had A bit of a PR issue with this whole thing.
It’s in, in corporate management, like if you have an, everybody’s going to go through either a product quality issue or some kind of. Business downturn, whatever. But it’s usually, okay, we can see this coming, we have a plan for dealing with it we know, what needs to ha and my point is that before you go out and say anything in public, you’ve dealt with everything that you can possibly deal with internally.
You can’t obviously withhold information, business critical information from shareholders, but you also want to be able to have your arms around what’s happening. And I think in their desire for transparency, and not wanting to be accused of hiding anything, they went forward with, publicly, with a lot of hey, we’ve got an issue here, but there was no road map for okay.
How do you deal with that issue? And then what’s the business strategy moving forward? They’ve just come out and you know been very transparent with the fact that they have an issue and we’re sitting here nine months later You know going on 10 or 11, and it’s you know, we’re still Scratching our heads trying to understand.
Okay, what exactly you know, when can you start selling again? When are you gonna start making money again? There’s it’s You know the things that they’ve said in the past are just unfortunately not convincing. And they’re talking about, oh, we’re going to be back in profitability by 2026.
Not if you’re not selling in 2024. So you best get on top of it. If you’re not already.
Joel Saxum: Yeah, that’s the interesting one, right? Chief executive officer, Christian brush come out. He says we’re going to stick to this prediction that we’re going to break even in 2026. With some of these fixes that we need to do the big spend probably being in 2025.
Which is, it’s such a general vague statement that it, that can’t give anybody a warm fuzzy, but how, however the early shares trading that rose 2. 8% and that adds to 20 percent gains so far this year after they slumped off about 30 percent in value. At the end of last year. So for the, I don’t know, the general investor that’s, they’re still feeling like it’s going to be okay is what it looks like, but I don’t know if from some looking at it as we do from the inside of the industry it’s still on thin ice.
Okay. So shifting gears. Now we’ve been talking about finance for a little bit. We’re going to talk back to O and M and what’s actually going on in the field. So up in Norway, a rotor fell off. Of a Nordic N 1 49 turbine. So this was in, I’m gonna say this wrong, of course, wind Park in Norway. They had an issue with one of the turbines back from the summer back in June.
And since then they corded off the area. They made sure nobody would go in there. They did everything safe there. But as a part of the repair process, they removed the gearbox. So they took some major components out of the inside of the nelle there. And it said, along with the company’s statement says this, along with other special circumstances surrounding the damage and repair work has led to an unusual risk that the rotor falling could, or the rotor falling, failing could fall off the turbine.
And on January 27th, the rotor became loose and fell off the turbine. So the interesting thing here for me is that they knew it could be an issue. They knew it could come off. There did they did some risk analysis and stuff on it, but they didn’t actually do anything about it to remove a major component.
Usually you have to have the gearbox or the gearbox. You have to have a crane there. You also have to have. Or a smaller crane system mobilized to site to even get this thing down. So there had to be something really weird going on with this turbine that they left it in a precarious position without actually just saying, hey, the crane’s here, let’s take the rotor off as well.
What do you heard anything else about this, Phil?
Philip Totaro: It’s a little bit of a strange one because it sounds like they, they needed to reinstall some tooling or other components that was gonna hold everything together, and mitigate some of that risk. But they just didn’t have some of that tooling available, is what they’re saying.
That’s unfortunate because, from that perspective, it’s going to be hard for them to make any kind of a claim, like an insurance claim or whatever, because this sounds like it was entirely the either on the OEM or EPC contractor to not follow a proper procedure, but it’s also a bit distressing because this product platform has had some Teething issues around the world like that.
They also had a rotor issue down in Australia the same model at the more like South wind farm recently. There’s also been a recent report of an issue in for a wind farm in Chile with the same same model, make and model of turbine. And it’s. Maybe this is one of those scenarios where it might be like a Nordex procedure that needs to be re evaluated.
Again, you never want to see a situation like this, but clearly something needs to be done if it’s, not just an isolated incident.
Joel Saxum: Yeah, the interesting, Nordex says They came out right away. This is an isolated incident. There’s no other risk to any other turbines on that wind farm or in the wider fleet.
No worries. And then the asset owner’s yeah, we’re going to do an RCA and figure this out. So there could be some more news that comes out of this rotor falling off of the turbine up in Norway.
Philip Totaro: And it’s also another reason why you need to have asset owners talking to each other and providing information exchange, which is obviously something that we’re trying to do with the.
The data licensing that we’re doing is trying to, shine a light on the fact that there are other asset owners that own the same product that you do, and potentially, they’re, they could also be experiencing issues or potentially operating their asset with the same make and model of product in a better way.
And so that’s the sort of thing that needs to happen within the industry is asset owners have to, and operators have to get. A little more comfortable kind of talking to each other and potentially sharing best practices and information so that things like this don’t reoccur. Because again, Nordex may come out and say, trying to reassure everybody, oh, it’s an isolated incident, but it hasn’t, when you do the root cause, I’m sure it’s going to be You know, something that was specifically different than the issue that they had in, in Australia, more like South or in Chile, as you mentioned, but it’s still, it seeing repeated issues on the same make and model of product.
is never really a good thing. So again, I think from a holistic standpoint, it might need to be a internal investigation into procedures that might need to occur here.
Joel Saxum: Yeah. Phil, we talk about this quite often. The OEMs don’t want to share that much data, which is, trade secrets and whatnot, but the operators can.
Some of them are covered under some contractual agreements to basically NDAs and those kinds of nasty little pieces of paper that can slow industries down. But there is a few working groups. I know there’s a Scandinavian working group that gets together and they talk about, with all the owners and they talk about things.
There is a blades one. I think that’s headed up by some people from Bladina and Burgett Junker that was with RWE. They talk about some blade issues to get together as a little conference. One of the ones I was at a few years ago, the last time they had it in person was the Sandia blade conference.
And there was quite a bit of. Good conversation there about best practices and what’s going on different kind of things. Not at the granular level, right? Not at the, hey, we have this platform with this blade and this and this. It was more like, hey, guys, let’s get together. What are some general things?
That Sandia is going to happen again this year. We saw that and they announced that down in Albuquerque. If you’re into, if you’re into blades and you want to know what’s going on in the. The US wind industry from an academic standpoint, but with a lot of great operators there and engineers, that’s a good conference to go to.
I think last year, last time they had it in person, there was probably 250 to 300 people there. And it was a couple of different tracks all about technical issues. So that one was good. We could see some of these things raised at that conference, but yes fully agree with you, Phil. It would be nice if we had yeah.
I don’t know what we would call it. The wind book, the Facebook of wind, and just everybody could be on there and share all the issues with certain things and maybe a nice forum there. I don’t know. And maybe it’s an IntelStor spinoff. Maybe we’re working on it. So that’s going to be it for the uptime wind energy podcast this week.
If you’re a frequent listener to the podcast, please take a moment and give us a five serving on your podcast platform and subscribe to our weekly newsletter, uptime tech news. And this was a big one. Don’t forget this. If you’re going to be at OMS ACP OMS in San Diego, IntelStor is putting on a perfect little event on Thursday night.
So go to their website or go to their LinkedIn, find the link for that, sign up. It’s going to be free to attend. A lot of good information there. Make sure you hit up that.
Siemens Gamesa, Vestas, Ørsted Updates: Finances, Fallen Rotors, and Offshore Wind Outlook
Renewable Energy
Offended By Trump Flags?
My personal reaction to Trump flags is more of pity than offense. Life is tough enough without being deprived of a moral compass and even a meager level of intelligence.
In any case, we see such displays in ever-decreasing numbers, as Trump’s approval rating continues to fall, due to the president’s cognitive decline and brazen criminality.
Renewable Energy
She’s “Low IQ”
One has to wonder how much more gas Trump has in the tank when he calls those who disapprove of him (especially blacks and women) “low IQ.”
Aren’t we approaching a point when this type of stupidity will cease to be effective?
There must be a bottom of the pit we’ve fallen into.
Renewable Energy
PowerCurve’s Innovative Vortex Generators and Serrations
Weather Guard Lightning Tech
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PowerCurve’s Innovative Vortex Generators and Serrations
Nicholas Gaudern from PowerCurve joins to discuss SilentEdge serrations with up to 5 dB noise reduction, Dragon Scale VGs for AEP recovery, and their approach to products that actually perform in the field. Contact PowerCurve on LinkedIn for more information.
Sign up now for Uptime Tech News, our weekly newsletter on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on YouTube, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary’s “Engineering with Rosie” YouTube channel here. Have a question we can answer on the show? Email us!
Welcome to Uptime Spotlight, shining Light on Wind. Energy’s brightest innovators. This is the Progress Powering tomorrow.
Allen Hall: Nicholas, welcome back to the show.
Nicholas Gaudern: Thanks, Allen. Always a pleasure.
Allen Hall: Well, there’s a lot of new products coming outta PowerCurve. And PowerCurve is the aerodynamic leader in add-ons and making your turbines perform at higher efficiency with less loss. Uh, so basically taking that standard OEM blade and making it work the way it was intended to work.
Nicholas Gaudern: Yes. We
Allen Hall: like to
Nicholas Gaudern: think so. Yeah.
Allen Hall: And there’s a, there’s a lot of new technology that you’ve been working on in the lab that you haven’t been able to explore to the, introduce to the world, so to speak. Yeah. And we’ve seen some of it from the inside of, you know, you’re working behind the scenes or working really hard to get this done, but now that technology has been released to the world, and we’re gonna introduce it today, some new trailing edge.
[00:01:00] Components. Yeah. That really, really reduce the noise. But they, they look a little bit odd. Yes. There’s a lot of ADON dams going on with
Nicholas Gaudern: Yeah.
Allen Hall: With these. So what, what do you call these new trailing edge parts?
Nicholas Gaudern: So, so what you have in your hand here? This is the Silence edge, uh, serration. So this is our new trailing Edge Serration products.
Now, most people, when they think of training restorations, they are thinking of triangles.
Allen Hall: Exactly.
Nicholas Gaudern: These Dino tails. Dino Tails, that’s the Siemens, Siemens name for them. Pretty, pretty standard. You see ’em on a lot of turbines now. Sure. And they work, you know, they do do a job. They do a job. They reduce noise.
But like with lots of things in, in aerodynamics, there’s lots of different ways that you can solve a problem and some are better than others. So we’ve worked for a long, long time in the wind tunnel, uh, in the CFD simulations, and we’ve come up with this pretty unique shape. We think,
Allen Hall: well, the, the, the shape is unique and if you, if you look at it, there’s actually different heights to the, the triangle, so to speak.
To mix the air from the pressure and the [00:02:00] suction side to reduce the, the level of noise coming off the blade
Nicholas Gaudern: e Exactly. So we have, uh, we have an asymmetry to the part. We have these different tooth lengths. We have, uh, a lot of changes in thickness going on across the part. So it may be a little bit difficult to see on the camera, but these are quite sculpted 3D components.
They’re not, they’re not flat stock white triangles. No, no. There’s a lot of thickness detail going on here. We’ve paid a lot of attention to the edges. We’ve paid a lot of attention to these gaps between the teeth as well. So all of this is about trying to figure out what is the best way to reduce noise.
And something that not a lot of people will, will admit, but it’s true, is that as an industry we don’t really understand the fundamentals of how serrations work.
Allen Hall: It’s a complicated
Nicholas Gaudern: problem. It’s a really complicated thing. Problem, yeah. Yes. So trying to simulate it in CFD is an absolute nightmare. The, the mesh sizes required, the physics models required are really, really difficult.
So what we found is that you’re probably better off spending [00:03:00] most of your time and money in the wind tunnel. Yes. So, so we go to DTU, they have this wonderful, uh, air acoustic wind tunnel, the pool of core tunnel. It’s one the best tunnels in the industry for doing this kind of work. It
Allen Hall: is
Nicholas Gaudern: because you can measure acoustics and aerodynamics at the same time.
So this allows us to do a lot of very cost effective iteration for this kind of design work. So we know what’s important. You know, we’ve, we’ve studied all the different parameters of serrations lengths, aspect ratios, angles, thicknesses, all this kind of stuff. And it’s about bringing them together into a, into a coherent product.
So this is, this is a result of a lot of design of experiments, a lot of iteration, and combining wind tunnel and CFD to kind of get the best of both of those tools. So,
Allen Hall: so what’s the. Noise reduction compared to those standard triangular trailing aerations. Yeah.
Nicholas Gaudern: So there’s lots of different ways of, of thinking about noise reduction, but I think probably the most useful is the O-A-S-P-L.
So this is the overall sound pressure level. Right. Is kind of what [00:04:00]typically you’ll be measuring in an IEC test.
Allen Hall: Right.
Nicholas Gaudern: And that’s measured in decibels, but a way to decibels because it’s important that we’re waiting to what the human ear can actually hear. Right. Perceive. Exactly. So that’s the numbers we report.
For the field test we’ve recently completed with Silent Edge, we’re seeing up to five decibels of O-A-S-P-L noise reduction.
Allen Hall: Okay. So what’s that mean in terms of what I hear on the ground?
Nicholas Gaudern: So that is an absolutely huge reduction. It’s multiple times of reduction because you know, decibels on a log scale,
Allen Hall: right?
Nicholas Gaudern: So five DB is is enormous. It’s
Allen Hall: a lot. Yeah.
Nicholas Gaudern: And what’s really interesting is that if you have a turbine that’s running in a noise mode, just one decibel reduction. Of power, sound, sound, power level might be three or 4% P loss. I mean, that, that’s, that’s huge. Think about that loss. So if you need to reduce noise by five decibels to get within a regulation, imagine how much a EP you have to throw away by basically turning down the [00:05:00] turbine to do that.
Allen Hall: That’s right.
Nicholas Gaudern: So that’s really what the, the business case for these kind of products is. It means you can escape noise modes because as soon as you use a noise mode. You are throwing away energy.
Allen Hall: You’re throwing well you’re throwing away profits.
Nicholas Gaudern: Exactly.
Allen Hall: So you’re just losing money to reduce the noise.
Now you can operate at peak.
Nicholas Gaudern: Yep.
Allen Hall: Power output without the creating the noise where you have that risk. Right. So, and particularly in a lot of countries now, there are noise regulations. Yes. And they are very well monitored.
Nicholas Gaudern: Yep.
Allen Hall: We’re seeing it more and more where, uh, government agencies are coming out and checking.
Yes. ’cause they have a complaint and so you get a complaint. Oh, that’s fine. Or someone can complain. Yeah. You know, you need to be making your numbers.
Nicholas Gaudern: Yep. And, and the industry needs to be good neighbors, you know? It
Allen Hall: certainly does.
Nicholas Gaudern: Uh, we have to make sure that people are, you know, approving and comfortable with having wind turbines in their backyard.
Sure. And noise is a big part of that.
Allen Hall: It is.
Nicholas Gaudern: So yeah. Ap sure. That’s really important. Being a good [00:06:00] neighbor also important.
Allen Hall: Right.
Nicholas Gaudern: Meeting the regulations. Obviously you have to meet the regulations. So this product, um, has been through a really long development cycle, and we’re now putting the final touches to the, to the tooling.
So this is available now.
Allen Hall: Oh, wow.
Nicholas Gaudern: Okay. Great. Um, and we’re hoping that in the next uh, few months we’ll be getting even more turbines equipped out in the field with, with the technology.
Allen Hall: So, oh, sure. There’s a, you think about the number of turbines that are in service, hundreds of thousands total worldwide.
A lot of them have no noise reduction at all.
Nicholas Gaudern: No. No.
Allen Hall: And they have a lot of complaints from the neighbors.
Nicholas Gaudern: Exactly.
Allen Hall: Trying to expand wind into new areas, uh, is hard because the, the experience of the previous Yes. Neighbor
Nicholas Gaudern: Yep.
Allen Hall: Grows into future neighbors. So fixing the turbines you have out in sight today helps you get the next site.
I know we don’t always think about that, but that’s exactly how it works. Yeah, of course. Uh, we need to be conscientious of the people of the turbines we have in service right now. So that we can continue to grow wind [00:07:00] globally and more regulations on noise are gonna come unless we start taking care of the problem ourselves.
Nicholas Gaudern: Yep. And another really important thing with Serrations is that you have to design them so that they don’t impact the loads on the rest of the turbine.
Allen Hall: Right. And people forget about that.
Nicholas Gaudern: Yes.
Allen Hall: Can you just, can’t just throw up any device up there. And think, well, my blade’s gonna be happy with it. It may not be happy with that device.
Nicholas Gaudern: You have to really carefully understand what the existing blade aerodynamic signature is.
Allen Hall: Sure.
Nicholas Gaudern: How is that blade performing? What is the lift distribution across the span? Yeah.
Allen Hall: Right. Yeah.
Nicholas Gaudern: So what we do, and we, we’ve talked about it before we go and laser scan blades. We build CAD models, we build CFD models so we can actually understand how much lift a blade can take and what’s the benefit or the penalty of doing so.
So these serrations are designed by default to be load neutral. They won’t increase lift. They won’t reduce lift. That’s what
Allen Hall: it should
Nicholas Gaudern: be. That’s where you should start,
Allen Hall: right?
Nicholas Gaudern: And maybe there’s some scope to do something else [00:08:00] on certain turbines, but you shouldn’t, you shouldn’t guess. You, you need to calculate, you need to simulate, you need to think very carefully about that.
So that’s what we do with these, uh, with these serrations, we go through this very careful aerodynamic design process to make sure that they reduce noise and that’s it. They don’t increase loads, they don’t reduce AP by killing lift. And that’s, that’s an important aspect.
Allen Hall: Well, that’s the goal.
Nicholas Gaudern: Yes,
Allen Hall: exactly.
I don’t necessarily want to increase power. I don’t wanna put more load in my blade, but people do that. I’ve seen that happen and man, they regret it.
Nicholas Gaudern: Yeah, regret it. There’s, there’s some pretty wild claims out there as well about observations can and can’t do. And uh, like with lots of things, it’s important to just do the simulations, speak to some experts and, um.
Yeah, maybe take the, the less exciting path, you know, sometimes,
Allen Hall: well, no. Yeah. Well, less exciting path where I don’t have a broken blade.
Nicholas Gaudern: Yeah, exactly.
Allen Hall: Yeah. That’s a lot less exciting. It’s, it’s definitely more profitable. Now, the Dragon Scale Vortex generator has been [00:09:00] around about a year or so.
Nicholas Gaudern: Yep, yep.
Allen Hall: And the thing about these devices, and they’re so unique, interesting to think about because you typically think of a vortex generator as this being this little bit of a fence.
Where you are tripping the air and making it fall back down onto the blade.
Nicholas Gaudern: Yep.
Allen Hall: A really, it works.
Nicholas Gaudern: It works.
Allen Hall: But it’s it’s
Nicholas Gaudern: been around a long time.
Allen Hall: Yeah. Yeah. It, it does, it does do this thing. And they, they were, they came outta the aviation business. We use ’em on airplanes to keep air flow over the control surfaces so we can continue to fly even in close to stall conditions.
All that makes sense. And airplanes are not a wind turbine.
Nicholas Gaudern: Yes.
Allen Hall: So there’s different things happening there. So although they work great on on aircraft, they’re not necessarily the most efficient thing for a wind turbine where you’re trying to generate power and revenue from the rotation of the blades.
Nicholas Gaudern: Exactly.
Allen Hall: So this is a completely different way of thinking about getting the airflow back onto the blade where it produces [00:10:00] revenue.
Nicholas Gaudern: And what’s really nice is to actually see this together with silent edge, because historically, and maybe not even historically. Serrations VGs, they’re triangles. They work, they do a job.
But that doesn’t mean you can’t do it in a different way. In a better way.
Allen Hall: Right.
Nicholas Gaudern: And that’s the same principles from applying with Silence Edge and Dragon Scale. We want to work the flow in the most efficient way possible.
Allen Hall: Right. You’re trying to get to an
outcome.
Nicholas Gaudern: Yeah, exactly.
Allen Hall: Efficiently.
Nicholas Gaudern: We want to, we want to target very specific things on the blade, and that’s where you can see there’s a few different styles of Dragon Scale that we have on the table here.
We have some that are two fins. We have some that are three fins. We have different sizes, and this is because they’re tailored to different parts of the blade. So these three Fin Dragon scales, their focus is ultimate lift. We are creating a really powerful vortex through this combination of three air foils, if you imagine, um, the inside of a Turbo fan.
You have these cascading air force. [00:11:00] You look at the leading edge slacks on an aircraft. You look at the front wing of a Formula one car. It’s that kind of concept.
Allen Hall: It’s like that,
Nicholas Gaudern: and it’s these air force that are cooperating with each other.
Allen Hall: Right.
Nicholas Gaudern: To end up with a more beneficial result. ‘
Allen Hall: cause an air force by itself does a function, but when you combine airflows together in the right way
Nicholas Gaudern: Exactly.
Allen Hall: You can really control airflow efficiently, less losses. More of what you want out the backside. Yeah, exactly. It’s, it’s the backside you’re trying to work on, on a VG or, or dragon scales. You’re trying to create this flow which gets the airflow back onto the blade to create power. We,
Nicholas Gaudern: we want as much attached flow as possible and down exactly down in the roots of a blade.
We have to have really thick aerofoils, you know, blades about round. They’re basically cylinders.
Allen Hall: Yeah.
Nicholas Gaudern: And that, that’s essential, right? We have to have the blade take a lot of load into the root aerodynamically. They’re horrible.
Allen Hall: Yeah.
Nicholas Gaudern: So this is where these, uh, these powerful Dragon Scale VGs come into play because what they do is they’re [00:12:00] reenergizing the flow over the aerofoils, and they’re ensuring that that flow remains attached for much, much longer than if those bgs weren’t there.
So down in the root, you’ll get significant boosts to the lift that those sections can generate. And what’s more lift? It goes to more torque, it goes to more power, goes to more a EP. So these dragon scale VGs in the root are there to boost, lift, and boost EP out on the tip of the blade. Things are actually a little bit different because it’s way different.
You shouldn’t really have stall there to begin with if your blade’s been designed well.
Allen Hall: But if you have leading edge erosion exactly. Or some other things that are happening, you can have real aerodynamic problems.
Nicholas Gaudern: So yeah, as soon as you have erosion, uh, maybe your stall margin is not as big as you thought it was.
You’re starting to get some significant losses of lift Yes out towards the tip of the blade. So that’s where these, uh, TwoFin uh, variants come in. So it’s still a dragon scale vg, it’s still the same concept of these cascading error foils. Yeah, but these are [00:13:00] designed for basically ultimate lift to drag ratio.
Mm-hmm. So we don’t really want more maximum lift outta the tip. We kind of have enough, but what we do want is to keep stable attached flow and we want to do it for the less, uh, least drag penalty possible. So basically we want to get rid of as much parasitic drag as we can. These two fin dragon scales, we are seeing 25 plus percent improvements in lift to drag ratio.
Compared to a standard triangle vg. I mean that’s huge.
Allen Hall: That that is really
Nicholas Gaudern: huge.
Allen Hall: That’s huge, right? Because people have seen these, uh, triangular VGs in a lot of places. And one thing I’m noticing more recently is that those VGs, because they’re so draggy, they tend to flutter and they tend to break in just off.
Nicholas Gaudern: Interesting.
Allen Hall: So you’re having this failure mode because this thing is just blocking the air, getting the air to trip.
Nicholas Gaudern: Yeah.
Allen Hall: It’s not efficient. It does have its downsides ’cause it is. D definitely drag. Just face it, it’s it, is it a draggy [00:14:00] 1940s technology? That’s what it is. Where with the dragon scales, now we’re doing things a lot more efficiently and thinking about how do I get the airflow that the blade designer originally wanted?
Nicholas Gaudern: Yes,
Allen Hall: because the blade designer, they’re really intelligent people. They’re, they’re sitting designing blades. But the reality is what you design is on an ideal airflow, and what you have out in service are totally different things. As, as it turns out, the shape of the airflow is not what you think it is because it comes out of the tool and there’s a lot of touching with by humans that are grinding on the leading edges and doing the things that have to be done to manufacture it.
So you don’t really have an ideal blade when it comes out of the
Nicholas Gaudern: No. You
Allen Hall: never do factory. No, you never do.
Nicholas Gaudern: And it’s not polished either.
Allen Hall: It’s not polished. Right. So
Nicholas Gaudern: when you go to the wind tunnel, you have a perfect profile. Yes. And it’s polished. And it works basically. It
Allen Hall: works great. It
Nicholas Gaudern: works great.
Allen Hall: The theoretical and the actual match.
Yeah. In reality they do. I think a lot of operators are not [00:15:00] connected with that reality of, Hey, that Blade should be producing this amount of revenue for me, and it’s not. And you hear that discussion all the time, particularly in the us. It should be producing this amount of power. I’m doing all the calculations.
We are not producing that power. Why? The blade length’s saying, but the power’s not coming out of it. Well take a look at your leading edge, take a look at your yard full of shape and realize you’re going to have to do something like dragon scales to get that E energy. Exactly. Revenue back.
Nicholas Gaudern: You need to do a full aerodynamic health check.
Basically you do. And see what are all the possibilities to improve my blade performance. And some of it is down to the fundamental shape of the blade,
Allen Hall: right?
Nicholas Gaudern: But some of it is down to blade condition. Yes. Blade Blade manufacturing quality.
Allen Hall: Yes.
Nicholas Gaudern: Uh, what kind of paint did they put on it? What day of the week was it made?
And all these things can be compensated for by VGs and you’ll get more revenue out at the end.
Allen Hall: You say? ’cause what happens? The, the, the scenario which is hard to visualize unless [00:16:00] you’re an A and emesis, is that there comes on the suction side, and it should be, in a ideal sense, rolling all the way to the back edge of the blade and coming off.
What happens is though, is that. When you get leading edge erosion is that the air flow actually separates. Yeah.
Nicholas Gaudern: It
Allen Hall: doesn’t
Nicholas Gaudern: always make it, yeah.
Allen Hall: Doesn’t make it to the back edge. Yeah. And so you can see that, especially if, if there’s dirt in the air, you can look on dirty blades, you can see where that separation line is, and a lot of operators have sky specs, images or Zeit view images, and then go back and look at the blades.
It takes two minutes to go. I have
Nicholas Gaudern: particularly down in the root, you’ll see it.
Allen Hall: Oh, in the root all the time. You, you
Nicholas Gaudern: see it really clearly that that separation line
Allen Hall: all the time, you really see that separation line. I’m seeing it more and more up towards the tip. Interesting. That’s where the lightning protection, yeah.
Systems sit.
Nicholas Gaudern: Yeah.
Allen Hall: I see a lot of airflow that is not front to back on the suc. Well, you
Nicholas Gaudern: have a lot of three dimensional flow out there.
Allen Hall: You do towards the tip you do. And you realize how much power you’re losing there. And I think operators are just throwing away money.
Nicholas Gaudern: Yeah, exactly.
Allen Hall: So you could [00:17:00] put dragon skills on it very efficiently, very quickly.
Get that revenue back into your system and it’s gonna stay. So even if leading edge erosion happens, the dragon scales are gonna compensate for it. It’s gonna get the airflow back where it should be.
Nicholas Gaudern: Exactly. And the nice thing about this is, you know, we are building on well over a decade of upgrading turbines with aerodynamic components.
Oh yes. So this technology stands on the foundations of all of that work. In terms of the materials, the work instructions. Um, the fatigue calculate, you know, everything
Allen Hall: Yes.
Nicholas Gaudern: Is built on thousands of installations that we’ve done. Yes. So, although it’s a new technology aerodynamically, it’s not really new in lots of sensors.
Allen Hall: Well, I look at it this way. If you turn on Formula One today and look at what the new generation of cars running around as you look at the, that front. Yes. Uh. Fin. Yeah. What do I call it? Air foil shape in the front. It’s super complicated.
Nicholas Gaudern: The sculpting of the [00:18:00] surfaces is really impressive,
Allen Hall: right? There’s a lot of thought going into those surfaces versus you turn on a Formula One race or go on YouTube and look at a Formula One race from the 1980s.
Yeah, it’s basically a piece.
Nicholas Gaudern: Yeah.
Allen Hall: To provide down downforce. That’s it. The aerodynamics wasn’t really there, so we come a long way and a lot of that technology that happens in Formula One that happens in aviation eventually rolls down into. Yeah. Wind.
Nicholas Gaudern: Exactly
Allen Hall: right. So we, we, although we are not designing Formula One style blaze today, we’re taking that same knowledge and information and we’re applying that back in.
Nicholas Gaudern: Yeah. We’re
Allen Hall: secondarily we,
Nicholas Gaudern: which is a right thing to do. We’re taking, taking inspiration from all these different aerodynamic fields and, you know, picking the best
Allen Hall: Yes.
Nicholas Gaudern: From what’s available and just allowing ourselves to be a little bit more creative.
Allen Hall: Yes.
Nicholas Gaudern: And thinking outside the box a bit. There’s so many ways to do this as we’ve been saying.
And the import. And the
Allen Hall: data’s there.
Nicholas Gaudern: The data’s there. Exactly.
Allen Hall: The data’s there because you’ve been at the DTU Yep. Uh, wind Tunnel, which also has the acoustic piece to it. Yeah. So you have measured data from a reliable source. [00:19:00] You have field data, and you know, you put all these together, you’re gonna get that improvement back.
You’re gonna get your invest back, you’ll be more profitable.
Nicholas Gaudern: So Dragon Scale, focus on the AP. And that a EP will, uh, vary depending on the turbine.
Allen Hall: Sure.
Nicholas Gaudern: But we’ll assess the turbine and, and decide the best configuration, and then say silent edge. That’s the focus on the noise reduction. And we’re seeing up to five decibels OASP on the field.
It’s, which
Allen Hall: is crazy.
Nicholas Gaudern: It’s even more That’s really good that we were hoping for, you know?
Allen Hall: Yeah.
Nicholas Gaudern: So we, we know this is gonna be a, a great product.
Allen Hall: It looks very interesting.
Nicholas Gaudern: It does.
Allen Hall: It does it. It looks complicated and you think air airflow is complicated. It’s a compressible fluid. It’s not easy to, to just assume it’s gonna do what you think it is.
Yeah. You need to get into the tunnel. You need to replicate, you need to do all that work, which is expensive in time consuming. That’s why you go to someone like Power. Curver knows what they’re doing in the wind tunnel, knows how to measure those things and know when they’re getting nonsense. Out of their computer.
I
Nicholas Gaudern: mean, you, you’ll pay thousands and thousands of [00:20:00] Euros dollars a day to run a wind tunnel.
Allen Hall: You will.
Nicholas Gaudern: You’ve gotta Absolutely. You’ve gotta turn up with your plan in hand, that’s for sure.
Allen Hall: Oh, oh yeah, yeah, yeah. And I think there’s a lot of assumptions because it, aerodynamics is hard. You know, you watch these blade spin around, you don’t realize how complicated these devices are.
They are complicated. Those air force shapes we are running today have been through a lot of history, a lot of history to get to where we are now. Now we’re just gonna take him into the next generation. This, we’re bringing ’em into the two thousands. In sort of a
Nicholas Gaudern: sense, what I’m hoping to see is, you know, with the OEMs, some OEMs do it already, but it’s important to think about these components when you’re designing new blades as well, you should because then that will allow you a much bigger design space to work in.
And
Allen Hall: a lot less customer complaints.
Nicholas Gaudern: Yes.
Allen Hall: Where’s my power?
Nicholas Gaudern: Exactly. You know, these products, particularly the VGs, are really important tools for PowerCurve robustness. And some OEMs have known this for a long, long time.
Allen Hall: Yep.
Nicholas Gaudern: And you’ll see VGs on most of their blades. Mm-hmm. Others not so much. And that’s a design choice.
It’s a design philosophy. Um, and I think it may not [00:21:00] be the right one, you know?
Allen Hall: Well, I think the operators are asking to get the most out of their turbines. Yeah. Why shouldn’t they? They should be asking for that.
Nicholas Gaudern: I think for a, for a long time, and it’s not just in wind devices, like these have been considered, you know, band-aids fixes when you’ve, you’ve messed something up.
But I feel that’s a really negative way to think about products like this. They’re doing something that the kind of raw air fall shape on its own cannot achieve. Sure. Oh no. Right. You know, you might be able to mold some interesting stuff. Uh, as part of the blade, it’s very difficult to, to recreate the kind of aerodynamic effects that these products, uh, have.
Allen Hall: Right.
Nicholas Gaudern: So they shouldn’t be considered bandaids or fixes. No. They should be considered opportunities. And ways that you can maximize performance and unlock areas of the design space that previously weren’t accessible to.
Allen Hall: Sure. Every possible component that deals with fluid air is moving this way.
Nicholas Gaudern: Yes.
Allen Hall: Jet engines, you look at jet engine, how much more is going into those jet engines today in terms of this kind of [00:22:00] technology?
Yeah. All the race colors, doesn’t matter what class, where it is, is all looking at this anything to do with aircraft, it’s all over this.
Nicholas Gaudern: Yeah,
Allen Hall: exactly. Or, or doing this today. It’s just wind that’s behind
Nicholas Gaudern: wind. Wind is
Allen Hall: significantly
Nicholas Gaudern: behind. No,
Allen Hall: it’s not magic. It’s proven technology. It’s
Nicholas Gaudern: just good engineering.
Allen Hall: Well, it’s good engineering and if you call PowerCurve, they’re gonna help you under to to, to understand what you have today and what you could have tomorrow.
Nicholas Gaudern: Yes.
Allen Hall: And how this, these devices will improve your revenue stream.
Nicholas Gaudern: Exactly. You know, we will look at your blades, we’ll give you some good advice and maybe that advice will be that.
You know, a certain product isn’t right for your blade. Right. That’s fine.
Allen Hall: That’s an answer.
Nicholas Gaudern: That’s an answer.
Allen Hall: Yeah, it is.
Nicholas Gaudern: But let’s, let’s look at the blade. Let’s see what’s possible, and let’s just have a, have a proper conversation about it over some real data, some real
Allen Hall: facts. Right. I think that’s the key, and a lot of operators are afraid to talk about aerodynamics is it’s, it’s a difficult area to, to start the conversation on, right?
Yeah. But I think at the end of the day, when I work with PowerCurve, and I’ve worked with you guys for a [00:23:00] number of years, the answers I get back are intelligent and they’re not. Super complicated. This is what you’re gonna see. This is the improvement. And then we can, this is how we’re going to show you can get that improvement.
It’s not magic,
Nicholas Gaudern: no
Allen Hall: power crews backing up with data, which I think is the key, right? Because you’re the, you do hear a lot of noise in this industry about magical products that’ll do all these things. Particularly aerodynamic ones. Yes. PowerCurves, the ones really bringing the data.
Nicholas Gaudern: Yeah. And we have, we have the track record now.
We have like we do 17, 1800 turbines. Should be over 2000 very soon with our products on. Yeah. So we have a lot, we have a lot of data to draw on to know that we’re doing a good thing.
Allen Hall: Well, and speaking of that, because one of the questions that always pops up is, well, we have put these new VGs or trailing edges on, are they gonna stay on?
How durable are they?
Nicholas Gaudern: Yeah. And that’s a, that’s a really important question to ask was it doesn’t matter how fancy aerodynamic product is, if it falls off the blade.
Allen Hall: Right.
Nicholas Gaudern: So, you know, we’ve spent a lot of, uh, time and effort looking at how we should be fixing these products on. [00:24:00] So we use a, uh, a wet adhesive.
We specify a plexus adhesive to put our products in place. Really good adhesive. It’s a great adhesive and it means that they are not going anywhere. Basically. It’s a very, uh, forgiving adhesive. Uh, and it’s a very high spec. So we, we don’t use, uh, sided tape. We might have some of our products for some initial tack to help, you know, get the clear, the clear outta the line exactly.
But in terms of the bond itself, that is with a, a proper structural adhesive. So one thing that we are really proud of is that we haven’t got any, uh, reported failures of our panels over all the installations we’ve made. And that’s a combination of materials, but also geometry, work, instructions, adhesive.
It’s, it’s the full package. So it’s something that, um, yes, say we’re very proud of. And I think it’s, it’s a big part of what we do at PowerCurve, making sure the product is the right shape. Sure. But also making sure it stays on the blade.
Allen Hall: Well, you see it [00:25:00] from OEMs who have all kinds of aerodynamic treatments on there, and they’ll double set a tape to the blade, and then those parts are on the ground.
Nicholas Gaudern: Yeah. And double-sided tape. You can get some really nice spec tape. Sure.
Allen Hall: You,
Nicholas Gaudern: yeah. But it’s not
a
Allen Hall: 20 year device.
Nicholas Gaudern: No. And the installation tolerance required on surface prep is really, really high. So it’s possible. It’s just harder. I think it’s riskier,
Allen Hall: it’s risky.
Nicholas Gaudern: So, you know, I think for us, the adhesive is, is the way to go.
And, and it’s been proven out by the, by the track record.
Allen Hall: And some of the things we’ve seen over in Australia is when trailing ulcerations have come off, it’s been a safety concern. So now you got
Nicholas Gaudern: absolutely
Allen Hall: government officials involved in safety because parts are coming up. Turbine.
Nicholas Gaudern: Yeah.
Allen Hall: You
Nicholas Gaudern: can’t have these components flying, flying through the air.
That’s, that’s not safe.
Allen Hall: That’s because PowerCurve has done the homework.
Nicholas Gaudern: Yes.
Allen Hall: And has the track record. That’s why you wanna choose PowerCurve. So how do people get a hold of PowerCurve? How do they get a hold of you, Nicholas, to start the process?
Nicholas Gaudern: So, um, you’re welcome to reach out to us in lots of different ways.
We’re on LinkedIn. Uh, we have our website, [00:26:00] PowerCurve, dk, um, so yeah, LinkedIn websites. There’ll probably some links on this podcast as well to get in touch. But, um, yeah, whatever way works best for you.
Allen Hall: Yeah, it’s gonna be a busy season. So if you’re interested in doing anything with PowerCurve this year, you need to get on the website, get ahold of Nicholas.
And get started, uh, because now’s the time to maximize your revenue.
Nicholas Gaudern: Thanks a lot and great to talk to you,
Allen Hall: Nicholas. Thanks so much for being back on the podcast.
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