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Turbine Removal, Project Delays, Mining Rights – The High Costs Plaguing Wind Projects

This week we discuss Enel removing turbines from Osage Nation land, Dominion’s 2.6GW offshore wind farm, delays and fallout from offshore wind projects in MD, NJ and NY, the impacts of long project timelines, energy trading opportunities in Denmark, and differences in mining rights between the US and Australia.

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 FacebookYouTubeTwitterLinkedin 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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Allen Hall: Okay, Rosemary, over in Turkey, there was an interesting flight. So they were headed from Istanbul to Riyadh, Saudi Arabia, and the passengers, weirdly, heard somebody in the cargo hold. Yelling for help and I thought oh my gosh. This is a horror movie scene. So the passengers Alerted the evidently the flight attendants or the stewardess is there and then they went to the cockpit and told the pilots Hey, wait, there’s somebody stuck in the cargo hold and They diverted the flight and when they got on the ground, they couldn’t find anybody.

Rosemary Barnes: Anymore.

Allen Hall: Oh, anymore which is what didn’t what the stories indicate.

Rosemary Barnes: Isn’t that the obvious Unless someone hit a tape recorder in a loudspeaker in their bag, I would like to think that’s what it was, but it doesn’t really seem you can divert the flight, but that’s surely only going to reduce the risk of harm to this stowaway by a tiny amount.

Once you’ve gone up to Altitude and gone down again, the landing gears come up and gone down and then, yeah, that’s horrible.

Allen Hall: Yeah, if they’re in the landing gear area, that’s not a good place to be.

Philip Totaro: If it was a stowaway, because there have been cases where baggage handlers have sometimes, unfortunately, been, like, caught in the plane.

And that’s happened even in the United States. It’s extremely rare, thankfully, but that does happen. But to land after everybody’s this is like a Twilight Zone episode, Allen. Everybody’s like hearing a knock on the thing, and somebody crying for help, and then there’s nobody in there?

What’s going on? Ghosts?

Allen Hall: That is so weird.

Rosemary Barnes: Was the Twilight Zone always so gruesome? I don’t know. This is the way to start in a high note for the episode Allen.

Allen Hall: I just thought of you when I was thinking of Rosemary when she flies. She’s got to fly for 14 hours at a time. What do you do when you’re over the Pacific Ocean and here’s everybody knocking from the cargo hold?

It’s that is a horror scene.

Philip Totaro: Hopefully you don’t, jeez.

Allen Hall: My, my first thought was hopefully it was like a cat or a pet that, sometimes cats can sound like humans and make that kind of helping noise or a bird or something, please let it be something like that. But Rosemary had to go to the human level and scare us all.

So there you go.

Philip Totaro: Gaslighting Rosemary again.

Allen Hall: All right, Rosemary, Equinor. Has entered into an agreement with BP to independently pursue separate offshore wind projects under bids for those New York actions that are going on. BP is going to take full control of Beacon Wind off the coast of Long Island, and then Equinor is going to take Empire Wind.

Which is right nearby. The deal provides both companies flexibility to pursue priorities, obviously, for their individual corporate strategies, so they broken the ties financially. This has financial impacts, though, Phil. Equinor is expected to have a write down of about 200 million, and I think BP is talking about a 600 million Right down at the moment.

This is more of the fallout, I think, from the Ørsted, New Jersey situation where a lot of these projects are not taking place and everybody’s trying to find their financial footing. Phil?

Philip Totaro: Keep in mind, too, that these were part of a portfolio of projects where they wanted to renegotiate the power purchase contract prices.

They were blocked by the state of New York from doing that. And I guess this is the easiest mechanism for each company to just go and pursue, split the projects where they were co developing and just pursue them independently. Although, to be honest, the indications that we have on the new bids are that, they’re gonna end up being about 170 a megawatt hour, up from around 120 per megawatt hour in the first place.

Anyway, so That’s, this goes back to, I don’t understand why they didn’t just negotiate, why did they force the rebid? And then, I’m also slightly confused about the divorce from the perspective that normally you bring in a partner on a project because it defrays, it’s a risk reduction, right? It defrays.

Some of the cost of and some of the liability associated with doing any one single project phase. I don’t know. It’s a bit of a curious one. Although again, yes, you’re right, fallout from, what everybody’s been feeling and saying, which is, Inflation bit, interest rates are still too high.

Everybody’s waiting for interest rates to come down, which we expect to do sometime this year. And when that happens, a 170 to 190 bid is gonna look a lot more competitive than the original strike price that they had, around 120.

Allen Hall: Wow. Cause this has fallout in other places like New Jersey, right?

New Jersey approved two projects leading light wind and attentive energy offshore. In the round three of offshore solicitations, both projects are going to be located really far offshore, 40 miles. And what they’re saying in the New Jersey press is that you could barely see the tips of the blade because of the curvature of the earth, there’s just very little of the turbine you’re going to be able to see.

It’s so far away, it’s going to, those two projects are going to be about 1600 megawatts, which should power about a little over 1. 8 million homes. Now a couple of things about this project, Phil, both projects is the PPA prices seem really low. So leading light is about 112 a megawatt hour and attentive is about 131 a megawatt hour.

And based upon what we’re seeing in New York, where 170, 190 is probably the range they’re going to end up at. That’s a huge delta. So have Leading Light and Attentive left a lot of money on the table, or are they going to be in financial constraints here, or are they going to have to back out? Because if somebody’s going to pencil this and figure, and do the counting and realize we’re going to come up short, right?

Philip Totaro: It’s, you know what, it’s interesting because what, what happened with, the companies that pulled out, so like Ocean Wind One some of the other projects in New York, where they pulled out of the existing, even Massachusetts for that matter, where companies have pulled out from the existing power offtake contracts they had, they did so because Interest rates were too high.

Now, what I think these companies are doing is because of the current development stage that these projects are in, which is to say they don’t have federal approval yet, they don’t have state approval for the electrical cables and interconnection and all that sort of thing. They still need to go through all their vital environmental permits, et cetera, et cetera.

So given the state that they’re in and given the anticipated reduction in interest rates, I think they’re betting on, although it is a bet, but I think they’re betting on, inflation and interest rates coming back down and the cost of money is going to make for a more attractive project where they can go back to quote unquote, normal.

prices between, 112 to 132. That said, it’s still, it’s, would still be on quite the low side of things especially for New Jersey where, you know, some of the previous projects had power purchase contracts that were already more expensive than that. So You know, I it’s good news for New Jersey, and New Jersey ratepayers.

They are correct that you’re theoretically not going to be able to see the turbines if they’re 40 miles offshore, but it’s also a more expensive development project when you factor in the extra cabling that needs to go all the way out there versus Something that was closer.

Allen Hall: So it’s the cables, it’s the jackup vessels being further out, everything’s further away, it takes more time to get there and to get back.

It adds a lot of cost to the project. And then, it adds wakes, right? Cause they’re on the back side. Of that byte region, right? So the, I thought this is one of the worst wake sites. So if they have development in front of them, the power they were expecting is probably lower than what they had originally calculated, I would assume.

So this project is, seems fraught with risk. It doesn’t make any sense.

Rosemary Barnes: Has anybody asked the Flat Earth Society for their comments on this? If the turbines are going to be invisible due to the curvature of the earth, what’s the, yeah, what’s the response?

Allen Hall: The moon landing didn’t happen.

So here’s the other rub Rosemary? I think being that far away sets us precedent because what New Jersey is telling everybody is you’re not going to see the turbines. So the expectation will be you’re not going to see the turbines. And if that’s going to be the general rule, then some of these sites that are a little bit closer where you can see more of the turbines will, be the less attractive ones.

If New Jersey is going to go down this pathway, it does seem odd, doesn’t it?

Rosemary Barnes: Yeah, I don’t know. I think maybe the first few projects, while people are, it’s such an unknown and. People are really concerned. It’s hard to look at a, artist’s impression of what this wind farm will look like from the shore and, figure out if it is going to bother you or not.

And seems at least plausible to me that as you have one project and you’re like, Oh, you can’t even see that at all. 40 miles is, like more than enough. And then maybe the next one’s 30. And then. 20 and, people are actually happy to see blurry wind turbines in the, in, on the horizon.

It turns out so yeah perhaps it’s smart to start off just super conservative and come in. But yeah, like you ran through some of the challenges of putting them far offshore. I would assume that wave loads would be higher out there as well. Yeah, just, it does seem excessively difficult, but I think, just get a few projects done and, maybe they’re not the, best engineering project, the cheapest that it could have been.

Yeah, the absolute best cited, but at least they’re there and it gives people, something to some sort of like foothold for the industry and something that developers can refer back to when people are concerned, have concerns about the unknown with a new development, they’ll be able to say in this one.

This is how it worked and maybe it’s the only way to actually get started because it does seem like the U. S. industry is really having a lot of trouble just building up some pace and moving forward.

Allen Hall: Does that indicate trouble down in Australia? If the United States do this on, does this on the East coast, is the star of the South that far offshore in Australia?

Is it 30, 40 miles out? I thought it was a lot closer.

Rosemary Barnes: I can’t remember. I don’t know. I wouldn’t I wouldn’t like to guess at whether Australians are going to be more bothered by offshore wind than Americans. My instinct would be that Australian, Australians culturally are somewhere in between.

The USA and Europe. Europeans totally fine with it. Americans, a lot of them seem to hate it, or at least a noisy minority hate it. So I would expect Australians to be more, more bothered to some extent, but I’d be surprised if they’re more bothered than the US.

Allen Hall: So down in Maryland, they’re having the same problem.

Ørsted is withdrawing from the skipjack. One and two projects in terms of getting the credit application in because they don’t think those projects are viable due to inflation and high interest rates and the supply chain issues. What Ørsted is going to do is basically continue on with the, all the other work that’s going to happen down in Maryland.

It’s about a one gigabyte project. But so they’re going to continue some of the development, like slow roll it a little bit until they can find a better PPA. Is that a smart move, guys? Is just waiting out, like New York realizing that the PPA prices are going to be 170 to 190, does it just take time for Maryland to realize that’s what it’s going to be down there too?

And then this all comes together?

Philip Totaro: It’s interesting because it’s not necessarily going to be the same prices in different states. Depending on the level of competition that you have from conventional power generation as well as onshore renewables, You may not have the same price range that you do in the Northeast.

The further north you go in the Northeast in the United States. Usually, the more expensive your electricity rates are. Just because of transmission lines, et cetera, et cetera, the, say, permitting, et cetera. The projects in New Jersey, both Leading Light and Attentive Energy 2, had the opportunity to potentially bid into New York, where they would have theoretically gotten a higher price.

But they chose New Jersey because they want to get steel in the ground, and I’m wondering if that has to do with PTC or ITC credits and just, getting things going as opposed to continue to wait for, the potential and possibility of a higher price. Again, I, like I said, I think they’re gambling and I think with Ørsted, with Skipjack, they’re also gambling that, the market’s going to turn around into a more favorable state.

Where, theoretically, they can get offtake in Maryland, they can get offtake in New Jersey, they can also get offtake in Delaware, or you could do something with the government and get offtake in D. C., or Virginia, theoretically, Northern Virginia depending on where they want to build transmission lines, this is You know the strategy that I think Ørsted wants to employ is more of a wait and see or let’s find out if offshore wind in the United States takes off and then somebody just buys this redheaded stepchild of our U.

S. offshore wind development portfolio out from under us.

Allen Hall: So let me ask you this question, because it’s an obvious question, but if you had signed a PPA and you get the project developed and you realize, Hey, this project is not making the money we thought it would, could you cancel the PPA and then go to New York and say, Hey, we’ve got all this power, we’re ready to go, just drop a cable in the water and we’ll sign a new PPA with you guys and move on?

Is that a thing? Is that possible?

Rosemary Barnes: But the point of a PPA is that you do know your revenue because it says the amount that you’re going to get per megawatt. You couldn’t be, you can’t be surprised in that sense. It’s, you might split your amount of generation that you’re expecting to get and have some of it accounted for the PPA and some of it you’re going merchant.

You’re at the whims of the market and so you could be surprised by the merchant part of it. But I can’t see how once the project is completed, I can’t really see how you’d have any surprises with the PPA part of it to the extent that would allow you a reason to get out of a contract.

Phil, more about this than me, but. I think it’s like the opposite of what a PPA is aiming for.

Allen Hall: But this is the opposite of an onshore project where you’re stuck in a state and you pretty much know you’re going to offload it in a specific way. On these offshore projects, because you’re in federal waters, you’re not specifically tied to a state.

Could you walk away from a PPA?

Rosemary Barnes: You might not be metaphorically tied to a state, but you are physically, you have to be tied somewhere. You’re not going to just build, like a number of grid connections to hedge your bets. I don’t think that’s going to work out well for anybody.

Allen Hall: Belgium did that, right? So Belgium tied four wind turbine projects together, right? So they had a wind turbine cable, a feeder cable break, right? And because they were tied to in a grid system, they could offload their energy a different direction, right? And they had two connections. So…

Rosemary Barnes: I guess it would makes Since if you are located between two markets, you connect each way and then you can, have a interconnector as well as the, wind farm generator and you’ve got some sort of hybrid business model.

It’s not a bad idea.

Philip Totaro: To go back to Allen’s question, we can technically, as an owner operator, if you want to break your PPA contract, you can do it. There are penalties. And it just comes down to math, whether or not you can get a better deal from another state. That said, if you’re in if you’re still in the development phase, and you want to pull out of one, even though you might have assigned PPA, if the project hasn’t been built yet, you’re gonna pay penalties, but they’re gonna be less than if the thing’s operational, because then there’s an expectation that power’s being delivered.

But yes, you could theoretically do that if Ørsted wants to try to run a cable, From Skipjack all the way up to Massachusetts or Rhode Island or something, they could do that, sure. If they want to, if somebody’s gonna pay for that.

Allen Hall: Yeah I don’t know what, why wouldn’t they?

Philip Totaro: I, they could try, I don’t think anybody’s gonna pay for that.

That’s the problem, I don’t, who’s gonna pay for that?

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Okay, so this is the discussion that’s happening up in Denmark. So then that Bloomberg article that came out a couple of days ago, they were talking about. Basically energy traders up in Aalborg and Aarhus and Rosemary’s old neighborhood that are all Mark Zuckerberg in some office someplace doing energy trading and making hundreds of millions of dollars on the energy trading market.

It wouldn’t shock me if somebody had two cables coming off an offshore project and wherever they got the best price that day is where the energy is going. That would not shock me. I think that, that possibility is becoming more clear as they have trouble signing these long term agreements and realizing these projects aren’t as profitable.

Philip Totaro: But if you sign a fixed power purchase contract with somebody for offtake, there’s a certain amount of offtake that you’re guaranteeing. And then if you want to sell the rest of the power above that in a merchant market, you’re allowed to do that as the owner and operator of the project. But, it, that’s what kinda comes down to how do you set up a hedge strategy because there are necessarily gonna be days when you don’t meet your daily offtake requirement and you’re gonna have to buy power.

And this happens, by the way, even in onshore wind or solar or whatever, you have to buy power from a conventional power generator, usually with coal or gas or whatever. to make up the difference in whatever you were supposed to deliver under your off take contract. Yes, it’s theoretically possible to do what you’re suggesting, it’s just not trivial to do it, and it might make sense in Europe, where the cables, even though they’re in, serving multiple different countries, and there’s a mesh network and whatever, the cables are necessarily a lot shorter.

I think the longest export cable in Europe right now is something like, maybe, Between 50 and 60 kilometers. You’re talking about building 300 to 400 kilometers worth of cables, export cables to be able to handle all the different permutations of, I’m going to have a project down in Virginia, but I’m going to sell power to Massachusetts.

I don’t think it’s practical. And that’s why I’m saying it’s unlikely that happens in the U S it’s frankly it’s reminds me of the debate we have about like the train system that we have in the United States. It’s it works fine in like the Northeast. But the reason we don’t use commuter trains a whole lot in this, the middle part of the United States in the West is because it’s just too long of a distance between point A and point B.

It just doesn’t make sense to be able to do that.

Allen Hall: Rosemary, I still think we should open an office in Ahlberg and make some money on this energy trading business. I think there’s, I think there’s a future in that. And speaking of futures, did you also see that Dominion Energy received federal approval on their Dominion Wind?

Project which is a, which would be the largest one in the United States. It’s a 2. 6 gigawatt project. So they’re going to start building that soon. I think it’s going to be complete. I think the number, the latest date I seen is 2026, which is relatively close. So why is Dominion so easy and all these other projects are so difficult?

Philip Totaro: They’re their own power off taker, and which means they have no one to renegotiate with except themselves and. They also put a project budget in place, which was 9. 8 billion dollars for a 2. 6 gigawatt project. Which is a preposterous number. Now that does include transmission, however, that’s still they put a lot of extra margin in that project budget that they may not end up spending, but they’re building a project for themselves, so they don’t have anyone else to haggle with about power offtake.

Allen Hall: So the answer is to own both sides of the equation. Be the energy creator and the energy user. And that’s, and they get the state to back it up.

Philip Totaro: That’s the problem in New York and New Jersey. The utilities in New York and New Jersey and Connecticut, Rhode Island and Massachusetts for that matter, don’t want to own the projects or co own the projects.

They had the opportunity to, if you remember. PSEG in New Jersey Eversource, as you just mentioned. They are pulling out of these projects because they don’t think they’re gonna make money. And it could be that, again, Dominion just did a better job of putting the budget in place. Yeah I’m befuddled as to why more utility companies in the US don’t the benefit of a fixed price, power offtake contract that is well hedged.

Allen Hall: How does Avangrid look right now? Remember, they were one of the first ones to pull out a projects up in Massachusetts and they had a, like a $77 megawatt hour PPA. Now we’re talking about $170 megawatt hour. PPAs, they look like geniuses right now, don’t they?They got out early.

Philip Totaro: Yeah, and everyone was critical of it at the time, but again, as Inflation continued to go up and interest rates continued to bite and it’s trickled down into, supply chain costs and vessel availability and all these other things.

It’s just created a scenario where These companies, at the end of the day, are doing the right thing, because they can’t just build on profitable projects unless they’re gonna get some huge government subsidy to be able to do it, and nobody wants to see that, really. We don’t even want to see that in the industry.

We want projects to be able to operate profitably, and But, as we’ve talked about, I don’t know how many times now, if you have, natural gas or coal, and the price of natural gas goes, wildly out of sorts, then guess what? The power purchase contracts that they have in place is that the customer pays for that.

This is a different animal where you’re signing a fixed price contract and you have to make sure that the fixed price that you’re getting is profitable for, all potential scenarios, high inflation, low inflation, high interest rates, low interest rates. You have to make sure that the project’s going to necessarily work financially.

Otherwise it just doesn’t make sense. And that’s why the projects where the developer has pulled out are projects where it just doesn’t make sense at the price point that they struck when they struck the deal a few years ago. Now, the reality of this is. That we can have this debate about whether pulling out or not is a good thing.

But the fact of the matter is, these developers thought that was a fair price at the time and had the permitting not taken absolutely forever, then these projects would have already been under construction and nobody would have been pulling out of anything. Okay, if these projects were already under construction, then you wouldn’t, we wouldn’t even be having this whole debate.

And it’s just preposterous where the state holds no liability or culpability for the fact that their development process is ridiculously kludgy. You’ve had both New York and now places in New Jersey where they, and even Delaware and Maryland, where they’re highly resistant, if not outright blocking.

Transmission lines from being built to, to offtake the power. You can’t have it both ways, is the point. These state governments need to get out of their own way and let the market work and let the developers work.

Rosemary Barnes: Have you guys read that book, How Big Things Are Done? How Big Things Get Done?

Allen Hall: Yes.

Rosemary Barnes: That’s one of the key points that the author his name, Bent Fubier, he’s the Danish guy, but one of the main points that he makes about what causes like really huge overruns in budgets and timeframes is project duration. That’s one of the biggest risks because the longer that your project goes on, the more likely you are to have some, black swan that’s out of your control.

Like you can’t control something like a pandemic or, an earthquake or a change in government or hostile government. Those are all out of your control. But the more years that you drag on your project, then the more likely that you are to have something like that happen. And I think that was one of the big lessons that I think that, it would be good if organizations that have some say in, that are working with really big projects like transmission and wind farms and any other kind of energy infrastructure, that’s a lesson that they could definitely learn from that book is that, like you, you spend your time, you plan properly, but once money is getting spent at a decent rate, you move forward.

Very quickly through when you don’t, you minimize the amount of time that you spend on the actual construction phase of a project. And then you’re, yeah, you’re less likely to end up surprised with big cost or timeframe overruns.

Allen Hall: It’s Econ 101. Time is money. Gotta get the projects done.

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The United States vs. Osage Wind LLC in the Northern District of Oklahoma awarded a permanent injunctive relief in favor of the Osage Nation. And the United States against the wind turbine farm developers in the form of ejectment, which means they have to remove all the turbines.

Ejectment is a funny word for removing your turbines. Osage Wind is owned by Enel. Now, alright, so let me give you a little bit of backstory here because this has so many implications in the United States that I don’t even know if the courts understand what they have done. So in 2011, the Osage Nation sued to block the construction of the wind farm, but they lost in the construction of the farm again in about 2013.

All right, Osage Nation has a different sort of category in U. S. law. So back in the early 1900s, the Congress severed the surface rights from the mineral rights. So the mineral rights were allotted to the Osage Nation. Okay. So just remember, there’s sort of two things going on in here in parallel, surface rights and mineral rights.

So the thought was like any oil or gas underneath the ground would belong to the Osage nation. Certainly fine. Okay. So that means you can’t just go ahead and start. Going on at Osage Nation if you own the surface rights, you can’t start putting an oil well there because you don’t own what’s beneath the surface.

Okay, so when the wind farm was built the Osage Nation started suing them the wind farm, and the United States government on behalf of the Osage Nation was doing all the prosecuting there, going to court, and they got them the court to agree that because And now, when they dug the foundations for the wind turbines, they dug up some rock.

They took that rock and they crushed up some of that rock and used it as a foundation. The fact that they used, they dug up rock from that site, used it in a commercial purpose means that they have done mining on Osage Nation property. And then we need a mineral lease. So they got to the, they got to the penalty phase and boom they convinced the court to remove all the wind turbines.

Now, Phil, this has a huge financial impact on Enel on a farm that was, is not that old, really 10 years old. So it’s probably in the realm of a repower realistically. They weren’t planning on it, but when you have to take everything out, like they’re telling them everything must be moved away, towers, turbines.

Transformers, pads, I assume pads at the same time, cables, everything’s got to be removed. That’s a huge expense, right?

Philip Totaro: Yes, and Enel’s come out and estimated that it’s going to cost them about 260 million. If not more, to be honest, because I think they’re likely to see, overruns and, with that because anything that they’re gonna take out, the question is then, do they have, they’re not necessarily re crushing any of the rock and then putting it back in the ground again, so presumably they’re gonna have all the permits they need to be able to do this.

But it’s interesting what you also just mentioned, because there, there’s first of all, let’s also talk about the fact that in addition to the 260 million that Enel thinks it’s going to cost them to do this the Osage Enel for damages, and there’s also a third implication financially, which is that Enel was actually created a a beneficiary fund for the local school districts and other people that were around the leased area eh, of the, of this wind farm who are now not going to see millions of dollars in revenue that they would otherwise be getting from the wind farm over the remaining, eight or nine years.

That thing was planned for. So the challenge here is that, it’s obviously, they can still theoretically appeal this ruling, although this has been in the federal district court, so the only way they can appeal it is to go to the federal, or the, I’m sorry, the U. S. Supreme Court. It’s unlikely that they have the grounds to be able to do that, although they could argue.

The following, which is, how do you not, how is anyone who is any kind of an EPC contractor, and I don’t care if it’s wind or solar or whatever, how is anyone that’s working on anything in the Osage Nation not mining? Because if you’re digging anything up, you’re necessarily going to pulverize some of the rock and put it back, or some of the whatever, dirt, something, put it back.

That would necessarily have to be considered mining. But the aspect that you just mentioned, Allen, that I think maybe takes this out of the realm of being totally preposterous, is the fact that it’s the Osage Nation that has this separation between the surface rights. And the underground mineral rights, or the, anything underground.

And that wouldn’t necessarily be applicable everywhere else in the United States. Look, the Osage Nation, I don’t quite know how big their, in terms of land mass and square miles they own, but And it’s a decent chunk and this, 1NL wind farm is not even the only one that touches the Osage Nation land.

So there’s, theoretically presumably other projects already had a permit or, for the mineral rights or it was deemed unnecessary or whatever. Because this one project has been a thorn in everybody’s side for a long time But yeah, I don’t this is a strange one But again, I think it’s brought on by the fact that it’s this unique scenario where They decided to, and to the nation’s credit, the Osage nation’s credit, they were able to segregate those rights because, the fact that there’s a lot of oil and gas mining in in Oklahoma, in that area that they own gives them the opportunity to commercially exploit that for their own end.

It’s just a, it’s a bit of a weird one.

Allen Hall: Does this roll into other wind projects that have maybe done something similar? I don’t know necessarily that the surface rights and the mineral rights are separate, except maybe in federal land. I think, isn’t that the case in some places around federal land and maybe in some states it’s like that?

I think the way England is set up is like that, right? Just in the crown on everything below the surface. But it does make you go back and wonder are you going to run into this problem again and again, especially once it’s established precedence in the court in the United States, then everybody else has to follow this practice.

I do think with Enel, the, at least in the press, the articles I saw said Enel would not deal with the Osage Nation for getting mineral rights because they didn’t think they needed it. And I think a rational person would say, I need to put a foundation in the ground. This is surface. I’m not using the rocks for any commercial purpose.

I’m not like selling the rocks or I’m not drilling for oil. Why would we need to go get mineral rights from the Osage, but to the letter of the law, it looks like they did.

Rosemary Barnes: Is it the same group that they would need to negotiate for the surface rights and the mineral rights?

Allen Hall: No, I don’t think so.

Rosemary Barnes: Because if it was the same owners, you’d have to say that’s pretty pretty dishonest to grant surface rights, knowing that they weren’t really allowed and that they would have to pull their turbines out after they built them.

Yeah, but if it’s different groups, then I guess it’s not the case.

Allen Hall: This court case has been going on for almost ten years.

Rosemary Barnes: Oh, at least they got half of their lifetime then out of the wind farm.

Allen Hall: But still the expensive part is the removal piece where they have to remove all the pads and everything else.

That’s going to be a lot of work on that site to get that done.

Philip Totaro: That project, based on our own analytics of looking at their power generation, their PPA price and their, the CapEx that they spent, that project has not yet broken even. and was not slated to break even until another five years or so.

So the thought was, when this originally came down, the thought was, why don’t they just try to appeal to at least stretch out the project to the point where they break even and then, yes, they’re going to still have to spend all this money to dismantle, but it’s money that they were already going to have to spend because it was budgeted for decommissioning.

The reality of it though is, just like everyone else who’s life extending or repowering, doing some kind of partial repowering of their project to requalify for the PTC, I think that’s the reality is if you can leverage the electrical infrastructure, the towers, the foundations that are already in the ground, And you just want to re nacelle and re blade your turbans, that’s a pretty easy way to just get, an extra at least 10 years out of this project and a ton more PTC revenue and PPA revenue.

Allen Hall: This has a really interesting connection to the federal government’s some say overreach into the state’s activities, right? The case that the federal government became a huge bureaucracy, was back in Indiana. It was in Indiana, Phil, right? With the farmers in Indiana, where they weren’t selling they wanted to sell their product within the state and, or decided not to, and they wanted to sell their product in the state, and the federal government said we can control that, what you, how you do that, and it went to the Supreme Court, and the Supreme Court eventually ruled, the mere fact that you.

Don’t sell it across state lines is commerce. Therefore, the Commerce Clause came into effect where, the mere fact you do nothing, and I feel like in this case, Enel feels like they did nothing, they still got penalized, right? And so we have the huge government bureaucracy on the federal side because of the Commerce Clause.

This feels very similar to that. The mere fact that you could have brought in rock and put, made those foundations and not have this happen if you had the, just because you use the rock that came out of the ground, crushed it and put it right back where it came from is a commercial purpose, therefore defined as mining.

If you’re brought in dump trucks full of CO2 emitting. Vehicles to go dump rock into those holes. They would not have a mineral rights problem. Am I right about that?

Philip Totaro: Yes, and that’s actually what’s a little concerning from the case law standpoint of this is you’re setting this legal precedent now where You know it’s questionable whether or not again in other states which may have segregation or federal lands which may have segregation of surface rights versus, underground and or mineral rights.

You’re necessarily talking about a situation where this can reoccur. Because this has now been established in federal district court, this can be made applicable to any other federal district. So you’re setting a pretty dangerous precedent where there are projects where people can go back retroactively and say, will you mind our project site?

On our, our without lease rights, without mining lease rights, you had lease rights to, to build the wind farm, but you didn’t have mining rights. Now that also begs the question, are other developers securing the mining rights when they know they’re gonna, if they know they’re gonna need them?

I don’t think that’s been happening, but it’d be curious, maybe we can get a developer on the show in the near future here and figure that out.

Rosemary Barnes: If this information was known or expected by anybody, obviously the only reason why these mining rights are super valuable now is because they have to remove the wind turbines to make it right.

But if they knew this upfront, the cost of the value of the mining rights is only the cost of bringing in gravel or, like it’s not significant. I was. If it was known ahead of time, which is why it’s so cynical, like it was never valuable except for a, this like gotcha loophole that they’ve found.

And so it’s only relevant to people that already have projects. Anybody in the future can just say yeah, I’m going to bring in a truck of gravel and everything’s fine. So there would be no point in asserting your mining rights.

Allen Hall: So the mineral, I think Rosemary’s nailed it, the mineral rights are only worth the rock.

You put in the hole. That’s it.

Rosemary Barnes: Ahead of time, but after the fact, they’re, like it’s extortion, basically, and I can understand why they don’t want to pay. They’ve got their arm twisted behind their back, and it’s you’re going to have to remove this you’re going to have to remove your whole wind farm unless you pay us what you want, what we want.

And that value is much higher now than it would have been if they had. being up front about this right at the start of it.

Allen Hall: It’s I think they were, right? So I think, I give the Osage Nation due credit. I think they were complaining about this from the very beginning, right? So this was a starting point and they did find an avenue when the United States government agreed with them and that’s why we have to, that’s why the government, the United States has pursued it.

But Enel’s point of view If they did the calculation you just did saying it’s worth a pile of rocks, all right, here’s 50 bucks a hole, or 100 bucks a hole, this is all we’re going to pay you, and the Osage Nation disagreed then you’re stuck then you’re in real trouble, but I can see it from Manel’s point of view, like that is not worth any value, and I shouldn’t be paying you a lot of money, I think Osage Nation didn’t want the wind turbines there to begin with, this is a way to eliminate them, clearly but it does have, to Phil’s point, Much broader implications not in Oklahoma, but all over this, right?

It could be well beyond the window street and it could be in all over the United States even in waters Phil think about the offshore Waters same thing there.

Philip Totaro: Not necessarily because the lease rights are entirely Orchestrated by BOEM unless you’re in State waters, which I believe the border only goes up to three miles offshore Yeah, which cables yeah, but you’re not all you’re doing is burying the cable I don’t think that actually counts as because you’re also dropping rock bags You’re not you’re trenching but it’s not you’re trenching whatever like three meters or something below the surface It’s not well, I don’t know although again, maybe that constitutes mining.

I don’t know now and see now you’ve opened a can of worms Maybe that constitutes mining now. This is the problem because now you’re creating a legal definition of what actually is mining, how deep is the surface, below the surface, oh my god yeah, I’m actually, I’m curious, though if this is similar or different to Australia, because certainly mining there is the number one industry, but it doesn’t sound like The same precedent would be applicable.

Rosemary Barnes: It’s really different. One main difference is in Australia, only the Australian government owns the mineral resources. So it’s not like you can’t strike it rich by discovering oil on your land in Australia. And then in terms of Indigenous people, there’s two different kinds of land rights. In Australia there’s land rights where the mining company would have to negotiate to get permission to mine.

And, but then once they’ve got permission, they don’t really get to say, pick and choose, like what happens. And then there’s native title, which is the, traditional recognition of traditional ownership of the land. And that’s a lot less like ownership of the land. So they have the right to negotiate with the mining company, but they don’t have the right to veto a project.

But I was actually listening to an audio book the other day, and I can’t remember, I’ve listened to two at once. One’s Material World by Ed Conway and one’s it’s called Climate Capitalism. They’re both really good, but I can’t remember which one it was. But in one of those, they mentioned that, though they had an interview with a mining executive in Australia.

And he said that. You can basically add 30 percent onto the cost of your development if you’re doing it against the the indigenous people’s wishes. So they have as, to make up for all of the protests and you, that, that sort of thing, it can make the political environment very difficult because, obviously people often get behind the indigenous peoples with their their wishes for their, traditional sacred lands.

So they do negotiate generally. There’ve been some, there’s a lot of examples of really nice partnerships between mining and indigenous people and mutually beneficial arrangements, but there are also some real shockers. The worst one was Rio Tinto a few years ago. They knew about, there was this site that they, yeah, there was a site that had rights to mine an area already.

But then there was an archeological discovery that showed continuous use of this particular cave system for at least 46, 000 years. So there were human artifacts in there, throughout all, continuously over that period, which makes it the longest in the world example of a continuous culture, a continuously human occupied site.

And Rio covered it up a bit, pretended that they weren’t going to blow it up. And then one day it’s just Oh yeah, by the way, the explosives are set and it’s going to happen. And it just, it did they blew it up. And it’s just, yeah it’s really, it really shocked Australians and probably, around the world a bit as well, because you don’t get something like that back again.

There’s no way to make that right after the fact. Yeah, so I would definitely not say that the system is perfect. It’s a long way from perfect, but these days you hear probably more cooperative good arrangements than bad. And yeah, I’ve never heard of a controversy surrounding wind turbines or digging for foundations for wind turbines.

But then again, I wouldn’t have believed that the situation that you’ve just described would be possible in the U. S. either. It sounds so implausible.

Allen Hall: The brave new world, Rosemary. Brave new world. That’s going to do it for this week’s Uptime Wind Energy Podcast. Thanks for listening and please give us a five star rating on your podcast platform and subscribe in the show notes below to Uptime Tech News, our weekly newsletter.

And check out Rosemary’s YouTube channel, Engineering with Rosie, where she discusses recycling of wind turbine blades. And we’ll see you here next week on the Uptime Wind Energy Podcast.

Turbine Removal, Project Delays, Mining Rights – The High Costs Plaguing Wind Projects

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Omterra Rebrand, Goldwind Warns on Turbine Size

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Omterra Rebrand, Goldwind Warns on Turbine Size

Siemens Gamesa rebrands as Omterra, Goldwind questions ever-bigger turbines, and MIT revisits the century-old Betz limit.

Sign up now for Uptime Tech News, our weekly newsletter on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on YouTubeLinkedin and visit Weather Guard on the web. And subscribe to Rosemary’s “Engineering with Rosie” YouTube channel here. Have a question we can answer on the show? Email us!

The Uptime Wind Energy podcast, brought to you by StrikeTape. Protecting thousands of wind turbines from lightning damage worldwide. Visit striketape.com. And now your hosts

Allen Hall: Welcome to the Uptime Wind Energy Podcast. I’m your host, Allen Hall, and I’m here with Rosemary Barnes, who is recovering from a very serious illness, Matthew Stead, who has been healthy pretty much all the Australian winter, and Yolanda Padron in sunny, hot Austin, Texas. Welcome, Rosemary

Rosemary Barnes: Thank you. I am recovering from man flu, and I say man flu because it’s just a cold, but I’m complaining a lot about it.

Allen Hall: there’s gonna be a new name for Siemens Gamesa. So it was Siemens and then Gamesa’s a separate company. They merged. Siemens Energy, uh, broke off from Siemens AG. So [00:01:00] that’s a very well-known name, Siemens. It’s– Everybody knows Siemens at this point around the world.

And the, the one family had, as a company, had s- label on everything, right? So it’s, uh, Werner von Siemens started it 150 years ago. It’s been a long time since Siemens was started, but it’s everywhere. It’s on turbines, transformers, and power plants around the world, and now they’re changing their name, right?

So when Siemens Energy broke off from Siemens AG, they, they had a limited time they could use that name, so they have rebranding themselves or are about to rebrand themselves, and I wanna pronounce this right, Omterra. O-M-T-E-R-R-A. Now, we did a little research on this, and I think it’s Latin for all of the world.

It’s kind of a conjoined, uh, set of words, Latin words, kind of a, a schmear in a sense. So, uh, so the company that, you [00:02:00] know, that spun off in w- roughly 2020, if I remember this right, Matthew, does that sound right? It was roughly 2020 when Siemens Energy was established on its own. Uh, they’re gonna be changing their name to Omterra.

So instead of seeing, seeing Siemens Gamesa publications or Siemens Gamesa wind turbines, I guess they’re gonna have this new name, Omterra. What do we all think?

Matthew Stead: I think it’s great. I think, and if you go back to, you know, GE Vernova, um, I, I thought Vernova was a bit weird for a while, but now it just rolls off the tongue and easy. It just makes so much sense. Um, so I’m, I’m, I’m for it. I, I like it. I’ve already… You know, can already say it. It took a lot longer to say Vernova than it’s taking to say

Terra.

Rosemary Barnes: I think that it– But it’s not Vernova, it’s GE Vernova, right? So everyone knows what it is. Whereas my understanding is it’s not Siemens Omtera, it’s just Omtera, which makes it sound like a new budget kind of [00:03:00] brandless, history-less, uh, company. So that’s… Yeah, I’m no

branding expert, but I think that, uh, like they, they must have not been able to use the word Siemens at all, um, because otherwise you surely would, because it has a very…

Outside of, you know, their blade issues and bearing issues of a couple of years ago, they do have a, like a solid engineering reputation across many fields, so you wouldn’t probably intentionally divorce yourself entirely from that. So, um, yeah, I, I think it will take some getting used to for me

Matthew Stead: but everyone remembers. I mean, it’s not like– The people in the wind industry know their heritage, they know their history, so I don’t think it matters. I mean, you know, you know, they, they purchase the Senvion, you know, technologies or, you know, licenses in Europe. You know, y- y- you don’t forget these things, so I don’t think it matters.

I think it’s just a, it’s a color, it’s a, it’s a label

Yolanda Padron: I think it’ll be fine. I just think that there will be a little [00:04:00] bit of confusion down the line as with everything, right? Like I’ve, I’ve been on the side of conversations where I have to explain like Siemens versus like SGRE on paper and it’s like, oh, it’s– this is why th- there was that paper trail, uh, because people would think it was an absolutely different thing.

Um, so I, I can totally see those conversations coming, coming to play in the future where someone thinks that Ontier is a completely different entity that maybe they changed OEMs or something, um, for a site. But nothing a little history lesson won’t fix, I guess.

Matthew Stead: You just want people talking about you

Rosemary Barnes: Name change every year

Allen Hall: Change your name every year. Well, that’s, that’s one way to approach it. I w- always wonder what the boardroom looks like and sounds like when this discussion is going on, because Siemens, Siemens Energy is a big company, and there had to be outsourcing of this to probably several marketing firms, mostly [00:05:00] in Germany, I’m guessing.

And they came back with a bunch of pitches, and eventually they picked one. But boardrooms are probably not the place to pick a name. And I always think like, “Oh, you just had such a opportunity to do something really cool or really impressive.”

Allen Hall: Well, we’ll see how it goes with Omterra. The, it’s gonna be, I’m sure, a huge marketing effort, and you’ll probably see commercials for it during the Super Bowl.

Developers are [00:06:00] eyeing Britain’s next big renewables auction and have been waiting to learn the rules and most importantly, the price. Well, this week the UK government delivered both. It confirmed a package of changes to the CFD scheme ahead of allocation round eight, aimed at simplifying the process and keeping good projects from being tripped up by some paperwork.

So AR7 was super successful, and they’re hopefully gonna have a, a great allocation round eight. Uh, unchanged from last round, here are some pieces to it. AR7 brought in 15 gigawatts of, of new capacity, uh, well below the ceilings, and the government is betting that that’s stability from AR7’s gonna exist for AR8, so they’re keeping the pricing limits the same.

And let me give you some of the numbers here. So everything’s in 2024 prices, just so we have a baseline here. It, 113 pounds per megawatt hour [00:07:00] for fixed bottom offshore wind, 271 pounds for floating offshore wind. That’s, uh, pounds per megawatt. And then 92 pounds per megawatt for onshore wind, and s- 75 pounds per megawatt for solar. So 271 pounds per megawatt hour in 2044 dollars is, you know, you’re probably talking, what, 290 pounds per megawatt hour. That’s a really good strike price or ceiling to allow, uh, some more floating wind into the UK waters

Rosemary Barnes: Yeah. Well, the UK have this newly signed agreement with Japan, right, to, to progress development of that technology. I feel like I, I haven’t looked up any numbers to back this up, but I feel like the gap between fixed bottom and floating is narrowing. It’s barely more than double now, which, um, yeah, I think is not that bad considering how little development there has been for floating offshore wind compared to fixed bottom.

So [00:08:00] yeah, I think that it is an interesting technology to develop. I, I know with the, um, auction rounds and ’cause it’s a government thing, it’s easy to think, “Oh, why are you spending any money on anything other than the cheapest one?” Because y- you know, like, it, it feels weird that the government would play, you know, when they’re purchasing power for their grid, that they would do any more than trying to just get, you know, bulk power at the cheapest price possible whilst ensuring, you know, reliability.

Um, but in the previous or the previous, the one– last one or the one before that, they had quite a few tidal projects announced that certainly, you know, an expensive and not mature technology. But I think that you can’t say the same thing about floating offshore wind. I think that it is on a, like a good, a good development trajectory, and there are certainly places on Earth where floating offshore is one of the most appealing technologies.

You know, if you think of through to 2030s, 2040s, there’s plenty of places where, um, you know, slightly higher [00:09:00] price paid for floating offshore wind will still be worth it because they have so few other options available. So it makes sense as an industry to in- invest in capabilities there.

Matthew Stead: think it’s a really interesting method. It seems to be really successful, the contract for di-difference approach. So, um, I’m, I’m surprised that it’s not adopted more widely, um, in other locations,

Rosemary Barnes: it is around a bit.

I would like to see it, like, in, in Australia, we are, we are developing some new wind projects, but not as fast as we need to, to, you know, hit our upcoming targets. And I think, like, while the government is doing some things to help move or help incentivize developers, it’s not working that well, and maybe CFD would be a, you know, a bit of a better way to, like, just actually guarantee that these projects are gonna go ahead.

Allen Hall: Australia has a shipping problem. there’s been a concern at state-owned transport hubs are becoming less supportive of [00:10:00] wind energy projects with ACEN Renewables saying that they will now have to truck a large transformer from a wind project or for a wind project in northern New South Wales from the Port of Adelaide.

That’s not necessarily close. And h- they also said that the Port of Brisbane has refused to accept passage of some big transformers for a solar farm. also there’s some, uh, something about blades not being able to be accepted in certain ports. Like some of the, uh, Australian state-managed or state-owned ports are not accepting renewables.

Rosemary Barnes: I think

also that blades in Queensland can only be transported to site like one per day with a full police escort or something. It’s wild to

me ’cause, you know, like I lived in, in Denmark for so long and there were blades going up and down just the normal highway every single day, multiple like, uh, and three– they would go in sets of threes for obvious reasons.

Um, yeah, but the, the, the [00:11:00] Queensland government changed like a, a year ago or, or so, and it changed to a very anti-renewables government and they just threw all of the state’s renewable plans in the bin,

Allen Hall: such a recent change that when they, at least the news articles I’ve seen about it, I’ve only seen a handful, that they have, um, like last year some big transformers, like really difficult to move items have come through those ports and they’re just not letting them through now. How does that work?

If you have a, a, a legal right to build a wind farm or a solar farm or, or substation or whatever’s going on there, how do they reconcile not allowing those components to come through a port? In what world does that make sense?

Matthew Stead: I mean, most of the ports are– yeah, most of the ports are privatized, so it’s up to the individual commercial entity that’s running the port, I would, I would imagine. So it’s beyond the control of the government, would be my first guess.

Yolanda Padron: it seems like it’s an, a federal sort of thing that would give permits.

Matthew Stead: No, I mean, I’ve done a bit of work in the Port of Melbourne and, [00:12:00] um, it’s facilitated by the government, uh, state government, not federal, and but the ports are largely privatized.

Rosemary Barnes: I just pulled up an article and it says that it’s state-owned transport hubs are becoming

less supportive of wind energy projects. Um, yeah, and that’s the reason for why they’ll have to get that transformer in northern New South Wales, so very close to Queensland. They have to go from Adelaide, where you live, Matt, all the way through South Australia, maybe Victoria, New South Wales, and then, yeah, up to nearly the border.

Allen Hall: Is that just a temporary blip that the next election cycle it’ll revert back or is this something that’s more long term?

Rosemary Barnes: uh, it’s not obvious that it’s gonna flip straight back, that’s for sure

Allen Hall: [00:13:00] for years, the race in wind has run mostly in one direction: bigger and bigger blades, bigger towers, bigger machines.

And now a chief engineer f- at one of China’s largest turbine makers says it’s time to pump the brakes. Bo Juul Petersen, uh, Goldwind’s chief engineer in Denmark, argues that scaling turbines up no longer makes economic sense. So it’s not an engineering question, it’s an economic question. His reasoning rests on a simple rule of geometry, the square cube r- law, which says that as a turbine grows, its materials and costs climb faster than the rotor area that earns the revenue.

Past a certain point, he says, bigger simply costs more than it makes. Have we crossed that threshold yet? Is 20 megawatts that, [00:14:00] uh, pivot point where it doesn’t make any more sense to make a larger turbine?

Matthew Stead: didn’t we have problems when we went from three to six?

Allen Hall: One to two.

Matthew Stead: I, I, I think, uh, I think it’s good that someone’s actually coming out and saying this

Yolanda Padron: Whoa, whoa, whoa. Rosie’s on the podcast.

Rosemary Barnes: yeah, ex-excuse me, this is one of my topics of obsession that I constantly carry on about. I made a whole, a whole video about it with, um, equations to back up my opinions about scaling, um, and a very nifty tug of war metaphor between economic factors that favor big wind turbines and economic fav- factors that favor small ones.

And I think that we’re always a little bit ahead of, of what the right, the right balance is between those. So, you know, the benefits from having bigger turbines are that, um, you have fewer electrical connections, for offshore especially, that means less subsea cables and, um, yeah, just like much faster Faster construction of all that, you [00:15:00] know, less, uh, substructures and less, less of everything to install, less of everything to maintain as well.

You know, it doesn’t take so much longer to get up and do your annual maintenance checks of a big turbine compared to a small one. Like, it takes longer, but not, not that much longer. Um, but then all of the structural factors favor smaller turbines over bigger ones. blades especially, as they get longer, you get so many more problems in O&M, but they don’t show up on the developer’s spreadsheet, you know. The spreadsheet that you’re using to decide, um, your f- your final investment decision, it, it doesn’t, it doesn’t know that you’re gonna have a whole bunch of blade issues.

It doesn’t wanna know and so I think that that’s one factor that has pushed us past the economic point of where wind turbine size should be. And I think the other thing is prestige. I know that when I worked at LM, you know, we had the longest blade in the world.

It was 88 meters, was our first, um, world record that we set while I was working there. They’d had many before that. We had– They [00:16:00] had a, like, one-to-one scale printout of it that they took to WindEurope or WindHamburg, um, that everyone stood in front of, and then they lost it to somebody, and then they got it back again with the blade for the Halieade-X.

And we all know how well that went to, you know, have the world’s longest blade. Y- you know, it wasn’t so easy to make it, turned out. It’s very easy to announce and not so easy to make, um, with reliable quality. And now we’ve got all these Chinese companies, especially MingYang, is constantly announcing the world’s biggest something.

Um, don’t sell so many of them, but it’s not the point, isn’t to sell them, it’s to have the prestige of making the world’s biggest something.

Allen Hall: Yeah, what would be the technology breakthrough that would allow it to be more stable at a 20 or 25 megawatt? Because right now I’m, I’m seeing 1% improvement here and there, not 5%, 10%.

Rosemary Barnes: Yeah, I mean, 1% improvement will eventually add up to what, what you need. Maybe it’s in

20 years’ time, not 10 years’ time. But y- you know, like you can imagine anything. maybe [00:17:00] they start somehow, like aero and automotive manufacturing technologies get cheap enough that we can start making wind turbine blades with all prepregs instead of y- you know, um, you know, dry fabric and infusion.

For example, maybe 3D printing gets cheap enough that you can make your whole, whole blade from an additive process. Like a- anything like that. But it can also be other things like maybe the cost of subsea cables in- increases like a whole lot, and then if, you know, like things on one side getting more expensive can make it more worthwhile to save hard problems somewhere else. So that’s why I say it’s like a, it’s a, a ve- it’s a multivariable optimization problem that changes every time you have a…

Like for every project to project from year to year, it’s always gonna be slightly different. So I don’t think it’s wise to definitively say 20 megawatts is the threshold that we should never cross. Like I, I don’t agree with that.

Allen Hall: It’s one of those arguments, I think, about [00:18:00] any sort of technology about where the endpoint is. There’s too many variables to predict it. I always point to aviation in which older airplanes will hang around and hang around and hang around until the fuel price goes up enough where it doesn’t make sense to operate them.

So they will fly an airplane un-until they can no longer structurally do it. But if the price of oil shoots up and the price of aviation fuel bumps up, those airplanes get parked, and then they’re buying the new airplane with a more efficient engine. It’s a similar thing, I think. There’s just– You can’t tell where the technology’s gonna go or what the economic impacts of any part of that business will force you to do something different.

So it’s gonna be higher than 20 megawatts, guarantee you that.

Yolanda Padron: Well, it’s one of those things too, right? Where if we’re repeating the, the same blade type and we’re getting smarter about operating that same blade type, then the economic cost goes down, [00:19:00] right? Like, eventually. ‘Cause then you’re not just experimenting on every new thing or having to take all of the, the funding into tr- specializing techs or getting very specialized techs onto your site and finding a new– kind of the wheel every so often. [00:20:00] So speaking of larger wind turbines, evidently we’ve been doing this all wrong, that we’ve had the calculations for the, uh, Betz limit has been off, and, uh, a group of MIT engineers, I guess, uh, have, have made a breakthrough.

Allen Hall: So basically every wind turbine that is spinning today is based on some fundamentals, uh, math, empirical data in, in some level, but on formulas that have led us to design the wind turbines and that core formula called the momentum theory. And if you hear blade designers who hang around blade designers, which I don’t necessarily recommend, but if you do hang around blade designers, they, they’ll say the momentum theory, momentum theory, like, “Yeah, yeah, yeah, yeah, I got it.”

It, it, the– MIT is saying it breaks down exactly at the operating point where modern turbines try to live. Um, so for a century the fix [00:21:00] was a patchwork of corrections and useful, but with no real theory behind them. Now, a team at MIT said it has rebuilt the math from first principles, creating what they call a unified momentum model. It even nudges at the famous Betz limit, the century-old ceiling on how much energy a rotor can capture, and it bumps it up by a few percentage points, and that would be the first uptick to the Betz limit in over 100 years. All right, Rosemary, as our official Betz limit expert, does this make any sense?

Have the MIT folk something new?

Rosemary Barnes: a wind turbine blade, its aerodynamics are just the same aerodynamics as what keeps an airplane in the sky, right? It’s, it’s all the… It’s just an airfoil. It’s just facing a wind speed, um, you know, a local wind speed. It’s complicated by the fact that [00:22:00] a wind turbine blade is also rotating, so the wind speed is different along the whole span, and that’s, uh– and so is the flow angle, and that’s why blades are twisted and tapered.

Um, but you know, essentially when you wanna figure out how much energy, uh, a wind turbine is gonna generate or you wanna design the blade so that it optimizes that amount, you’re just slicing it up into a whole bunch of little bits of 2D flow, exactly the same as an, an airplane. So if it doesn’t work for wind turbines, then it shouldn’t work for airplanes either.

So that’s one fundamental thing. And also at Betz limit, it’s not like it’s not driving design. It’s more like if you, if your design exceeds the Betz limit for a, um, a horizontal axis wind turbine, then you– it’s like a sanity check that you’ve done something wrong. Uh, that’s, that’s what I would say you would mostly use it for.

Um, but what I don’t understand, and maybe Alan, presumably you did read the, read the research or at least the press [00:23:00] release. Are they arguing that y- um, like the tips of a wind turbine blade are rotating, are moving fast enough that it’s approaching transonic flow? ‘

Allen Hall: Yeah, it’s a rental number thing.

Rosemary Barnes: there’s different types of aerodynamic equations depending on how fast the, airfoil’s moving.

And my understanding is transonic is like 0.8 Mach, um, 0.8, which is 274 meters a second, which is more than double what, um, the fastest tip speeds are currently. So I would think that you’re not quite approaching that yet. They’re– It’s not like a cutoff that, you know, all of a sudden at that exact, exact speed the air behaves totally differently.

But, um, y- yeah, like it seems far enough away that it’s not that relevant. But is that what they’re getting

at or, or is it something different?

Allen Hall: I like doing sanity checks when I read things from MIT. So what blade [00:24:00] manufacturers and/or wind turbine OEM has designed a set of blades and go, “Oh my gosh, we’re getting more energy than what we calculated,” and not thought to themselves, “Huh, maybe we should look into that”? It’s, it’s, it’s hilarious almost that all the engineers working in wind for 100 years wouldn’t have stumbled across this, where the turbine produces more power than the Betz limit would say it would.

Y-

Rosemary Barnes: yeah, as many people have commented on, you know, any one of my YouTube videos about wind turbine aerodynamics, if they would just put more blades in there, then, you know, less wind would just fly through without ever being, um, y- without ever hitting a blade.

So, you know, like obviously wind turbine, uh, blade aerodynamics people are stupid because if they weren’t, then they would see that you just put more blades in and you get more, twice as many blades, twice as much energy and w- What about three times as many blades? Three times as much energy.

And I [00:25:00] didn’t even go to MIT and that’s just, you know, like just

brilliant

Allen Hall: Obvious

Rosemary Barnes: off the top of my head here.

Allen Hall: it’s sort of ludicrous, honestly, and I see these things in wind occasionally. I see it more often in other areas, particularly aerospace, where, where you just have to go, “What are we spending time on?

Really? We’re working on this? On a fraction of a percentage point that we may have a slight error in?” Like, it does not matter. What are you gonna do with that?

Rosemary Barnes: there’s two issues. One is that the person writing up the press release is not the person that did the research, and they will always blow it up to be much more groundbreaking than the engineers who actually worked on it probably think it is.

So, the, like, I think you have to, like, reserve your criticism of the work and try and criticize the press release. And then the second error that I commonly see is that people don’t have an un- good understanding of a status quo. So they think that they have smashed the status quo, but really it’s more to do with them not understanding the status quo than it is through [00:26:00] some legitimate, like, massive im- improvement.

So it could well be that this is all very good and correct work, just with limited practical implication. That would be my most expected, um, from this.

Allen Hall: Rosemary, how many times a month do you get queries about wind turbine improvements that are just physically impossible?

Rosemary Barnes: Oh, I mean, if I read all of the comments on my YouTube channel, then probably quite, quite frequently. But, um, yeah, the most common one is just people thinking you can just add more blades and get a proportional increase in, um, in energy, you won’t get more power from adding more blades if that’s the only thing that you do, because in a well-designed wind turbine, which modern ones are, every, e- every air molecule that goes through the rotor disc is gonna interact with the, um, with, with a blade.

That’s how it’s, it’s designed. The blades are moving really fast, and so every molecule doesn’t get hit, but, you know, every, every molecule is affected and has some energy extracted from it. Um, then the other thing is people [00:27:00]who think if you reduce drag, like if you can come up with a lower drag airfoil or a higher lift airfoil, then you think, they think that that relates to more energy proportionally.

So they’re like, “Oh, this airfoil has twice as much lift, so it’s gonna be twice as much power.” It’s like, actually, you know, wind turbine designers are aware of the full range of, you know, airfoils that are available, including high lift ones, and they’re not using it because, you know, the same reason the airplane wings aren’t just, you know, like the highest, highest lift airfoil.

Y- you know, it’s more of a lift to drag ratio type thing, and that’s true for wind turbine blades as well, but also there’s structural considerations probably more so in a wind turbine blade than there are in, um, in airplane wings. So, you know, there’s some sacrifices made for that. Um, yeah, but those are the two, two main families of, of mistakes that I’d say people make.

Allen Hall: So

Rosemary Barnes: Matt

Allen Hall: up to his hand up for

to MIT media representatives

Matthew Stead: uh,

I had a couple of sort of quick and simple points. The first of all, uh, I’m actually a graduate of [00:28:00] MIT. I’ve graduated from, uh, from a course at MIT. Um, so that’s the first thing. Um, not in engineering. Um, the next one is like, so what? I mean, we can’t even reliably measure, um, you know, AEP the other one is all models are wrong.

Yolanda Padron: But not just wind

Matthew Stead: the world is not perfect. All models are wrong, so trying to improve something that’s wrong, you know, might help a little bit, but does it really matter?

Rosemary Barnes: But it is also the job of academics to improve these models. So there’s nothing wrong with MIT spending a lot of energy to, um, you know, improve on an incorrect model with another incorrect model. Uh, if it’s more useful, that’s great, and even if it’s not, like isn’t that the job of

Matthew Stead: yeah.

Matthew Stead: you should add to where it has the most impact on humanity. You should actually put the effort into areas that have a greater impact on pushing the boundary. You know, pushing small boundaries does not help the world

Allen Hall: Matthew is an MIT graduate, [00:29:00] the one thing that Matthew brings to the table is real-world experience. And that if you shelter yourself inside a laboratory at MIT, and I understand why you would do that, because I’m sure it’s a very pleasant place to work, and there’s a lot of benefits to that.

However, the way that MIT used to work back in the day, and not everything was roses then, but oh, okay, y- that people had industry experience. They had a knowledge of what was going on on the ground, and they were engineers, and they realized that formulas and reality don’t always align. And maybe we lost that somewhere in the ’80s and, or ’90s, but it does continue to be a problem, where back to Matthew’s point, if you’re going to use that amount of brain energy, put it to something that can help the world.

This isn’t necessarily helping the world That wraps up another episode of the Uptime: Wind Energy podcast. If today’s discussion sparked any questions or ideas, and I’m sure that it will, we’d love to hear from [00:30:00] you. Reach out to us on LinkedIn, and don’t forget to subscribe so you never miss an episode.

So for Yolonda, Rosemary, and Matthew, I’m Allen Hall, and we’ll see you here next week on the Uptime: Wind Energy podcast.

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