Connect with us

Published

on

Weather Guard Lightning Tech

Tower Training Academy’s Renewable Apprenticeships

Nick Martocci, founder of Tower Training Academy, discusses their nationally recognized apprenticeship programs for wind turbine technicians and battery energy storage specialists. The company focuses on creating partnerships and initiatives that support career development and veterans’ transition into the renewable energy sector.

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!

Allen Hall: As renewable energy technology gets more complex and specialized every day, the industry needs skilled professionals ready to climb those towers and maintain critical systems. This week we speak with Nick Martocci founder of Tower Training Academy in Las Vegas. Tower Training Academy offers nationally recognized apprenticeship programs for both wind turbine technicians and battery energy storage specialists, helping everyone from recent high school graduates to career changers develop essential skills and certifications, while providing lifelong career support.

Welcome to Uptime Spotlight, shining Light on Wind Energy’s brightest innovators. This is the Progress Powering tomorrow.

So we were just talking, it’s been a year since we’ve spoken to you and I follow your Tower Training Academy YouTube page, LinkedIn page. I think you’re on Instagram also.

Nick Martocci: Yep. Instagram. We got [00:01:00] Facebook. A lot of social media. Uh, a lot has happened in the last time since we’ve chatted. Uh, been able to send a few more apprentices through the wind turbine program.

Uh, I’ve been able to help out a lot of veterans. We had one veteran actually come through my program, uh, work with us vets to help veterans, uh, transition, uh, into the renewable sector, if you will, and help them out also with transferring them out of a bad situation. Uh, the veteran, he just. Fell onto some harm times and, uh, no, no lie before he was with my program, was actually living in his car and so he got with us vets and uh, was able to get a little assistance from them.

Also got with Salvation Army, got some assistance from them and the US vets actually pointed him towards my program. We were able to get him a sponsorship and to this day it’s changed his life and he’s still, even right now out in the field. Doing torque contention work. [00:02:00] That’s awesome.

Allen Hall: That’s a great story.

And I, on your LinkedIn page, I’ve noticed a couple of ribbing ribbon cutting ceremonies with local dignitaries.

Nick Martocci: Yeah, we had a congresswoman Susie Lee, her office was very, very helpful with getting, uh, some other help that we needed. Uh, moved along with, uh, a few other pieces, but she was out there to help us, uh, announce that we actually did become a, the first.

Approved apprenticeship for the Department of Labor that’s active for our battery energy storage apprenticeship program. And so now we have both programs since last year. Uh, that was something that we had to kind of keep hidden behind the green curtain, if you will. And so I was working on that and now that’s already up and running.

Uh, we had one apprenticeship approved before us a few years ago and they haven’t sent anybody through it and. At the end of this month. Right now we’re in March, so at the end of this month [00:03:00] we’ll have 10 coming through my program already.

Joel Saxum: I think that’s super important for the industry right now where that, that the renewables industry, because battery storage growing.

Right? I, I mean, I live in Austin, right? So it’s just batteries after batteries going into the Ercot market and there’s a lack of people, lack of technicians, lack of engineering expertise, to be honest with you. Yeah. About how do we, how do we handle battery storage systems from an o and m perspective. We know how to install ’em.

Nick Martocci: Yeah.

Joel Saxum: Or if, I guess if you ask the insurance companies, they don’t think we know how to install ’em yet, but, but we know how to, we know how to get ’em out there. How do we maintain ’em? It’s awesome that you guys are doing this because I don’t know of any other real facility putting battery storage o and m capable people.

No.

Nick Martocci: It, it, it was a lot of grunt work, if you will, of putting everything together for our standards. Uh, I, I used a lot of other handrail systems that are out there as far as ideas. Uh, kind of like this Tony Stark moment, if you will create a framework and just keep messing with how this [00:04:00] works and integrate changes.

Uh, a big piece was to, and again, I wanna thank them, is a DO uh, a DO helped me out with a lot of the standards. They do a lot of the training for me. So that partnership there is, uh, a big piece that really helps out the technicians themselves with the certifications because it is accredited. Through is E.

And so that allows them now not only to have those skills and that training and certification, but also allows for that forward progression in their careers. Because like I said, it’s accredited so they can take those credits and start working on their degrees as well. So this is something that allows, not just for that immediate, okay, let me get a career piece going.

But now also that forward thinking piece of actually what’s the next step for me as far as becoming a manager, getting my degree, things of that nature. Anything that I put together with my programs, there’s always a what’s next for that person. Just like I was telling you guys about last year, the biggest thing that bothers me is that what’s next for me as a person in this industry [00:05:00] with a lot of jobs, it’s clock eight, clock out.

Yeah. Hope to see you tomorrow. Yeah, I, that’s why I have IFC there to be able to help out with that progression. And now I’d love to announce also that they’re now a 5 0 1 C3. They’re a nonprofit. And all of the donations go and we’ve partnered with PBS, uh, or partnering, working, um, with PBS to be able to offer PMP and CMP certifications.

So that program management, project management certification.

Joel Saxum: Yeah. Okay. So I know you were before the i is it IFC Infinite Fidelis

Nick Martocci: consultants?

Joel Saxum: That’s what, it’s the easiest

Nick Martocci: way to say it is IFC. Yeah.

Joel Saxum: Because we were helping technicians not only go through the training, get the skills, but then. Placing them with, with people, placing them in companies, getting them onto their first day at the job.

And I know you were helping people even build resumes and all kinds of great stuff to actually, you know, take your fellow man and carry him along for some success. So I like to see that now even, even with that, the [00:06:00] addition of the idea of putting PMP uh, training into people. Now they can become project management professionals and kind of, I’m not, I’m not just, I’m not, I’m not a technician anymore.

Now I’m upskilling. Now I can get to this next level. That’s, that’s awesome.

Nick Martocci: Because the big piece is the development of the workforce. They’ve gotta be able to, one, be empowered with their knowledge, make sure those standards are understood. One, also for their safety, but two for their personal and professional development,

Allen Hall: because they’re not gonna be a technician forever and they need to on move on to next.

You can only clean towers for so many years, right? That’s right. Right. Yeah. You work on batteries. Yeah. For so long now, tower Training Academy is in Las Vegas, and that’s a. Becoming more of an energy resource area is a lot of projects surrounding Las Vegas, not necessarily in Las Vegas. Where are the technicians, the future technicians coming from to train at your facility?

Nick Martocci: So I’ve had folks come from all over the USAI. I’ve had folks from Maine, from Massachusetts, from Utah, [00:07:00] Arizona, California, all coming Texas, Oklahoma, uh, because my apprenticeships are national apprenticeships. My reach is the entire US right now, and I know this is a military term, but lower 48. Um, but so far lower 48 is really what I’ve seen the most engagement with.

And so I’ve also worked on getting on a lot of workforce programs for, with the states, uh, also known as ETPL, uh, which is, uh, a, a eligible training provider, which means that OLA funds federal funds will be there to help assist individuals to be able to pay for the training as well. I. And so paying for the training is another big piece.

Uh, some companies will sponsor individuals, others will have to have an individual basically take care of the bills themselves, if you will. So having those wheel of funds and other funding grants, things of that nature, teaming up with IFC, infinite Fidelis Consulting, having them be able to help fund through donations, training and certifications for [00:08:00] people is a big, big piece.

Wow.

Allen Hall: Okay. ’cause usually when we talk to training facilities. The people that are attending are within probably 60 to a hundred miles Yeah. Of that facility. Yeah. Yeah. There’s not a lot of draw outside, which in my neck of the woods in Massachusetts right now, there’s not a lot of places to go. So you’re gonna travel somewhere?

Yeah, right. Why not travel to Vegas? It makes a lot more sense, especially since you have a program set up to accept people like that and makes it a lot more accessible. To the general

Nick Martocci: population? Well, the big piece, I mean, Al also, and I get, and I’ve spoken with a lot of folks, uh, the, there is a concern with negative, uh, negative concern with Vegas and I get it, but the biggest piece is also understanding that I’m as far north as you can get of Vegas without not being in Vegas anymore.

I’m literally right across the way from Nellis Air Force Base. Uh, I get to watch the Jets take off every day. I’m right by the raceway. So all of the above, that little two mile piece that people have concerns about, I’m, I’m way away from that. And I even have [00:09:00] partnerships with the hotels in the area to be able to allow people to have accommodations and keep things closer to me than all of that.

Sure.

Allen Hall: But that allows to keep the cost down because you have access to all the facilities and Las Vegas is a city. Yeah. So they’re, everything’s accessible. I, I realized, yeah, you probably wanna stay off the ship if you’re smart and you wanna keep your money. However, the thing about Vegas that I like about Vegas, and I’ve been there many times and I’m not a big strip person, is that it is a big city.

There are things to do there that don’t involve gambling and carrying on, but all the services are there. The air force’s great. Yes. It’s inexpensive. You can live there for a while. Mm-hmm. Which, if you’re training, you’re going through this program.

Joel Saxum: Can make the difference I’ve had, oh, go ahead. I think that’s a big, an important part of the training.

So, so many places are like, yeah, we’ve talked to a lot of training facilities. Um, a lot. We know a lot of ’em connected within the industry and they want people to come from all over the place, but not all of them are putting [00:10:00] together. I have a partner with the hotels or partner with this. So like, and like I know this is a cross industry thing.

Um, there’s a, there is a. Lineman training school like down in Georgia. Right. What was the name of that? I don’t, either way. But they put their package includes housing and all this stuff, right? With it. Right. And that’s a huge thing. If you’re trying to draw people in, you gotta go stay. You know, if you’re gonna be there for a month or something, you gotta stay in a hotel for a month.

If you guys, you know, which is a normal technician thing to do, it’s good training right in that part. But to have that partnerships kind of set up already for that makes it that much easier. Greasing the wheels for people to be able to come. Yeah,

Nick Martocci: because these folks are coming from all across the us.

I’ve even seen folks get an Airbnb for about 800 bucks for the month. Oh, wow. Which really isn’t bad. You’re sharing it. Uh, and then like I said, with the hotels, it keeps it really, you know, cost effective. To your point, as far as flying in, and I’m being sarcastic a little bit, but I don’t know, there’s a, for some reason, a round trip ticket in and out of Vegas is heat is.[00:11:00]

It’s the cheapest in the United States, and I don’t know why it’s super cheap. I don’t know why. So, I mean, you take that couple hundred dollars instead of paying the airline. Yeah, yeah, yeah, absolutely. And, and so you can get a, a, a future technician around trip ticket really inexpensively. And then again, housing’s not that bad.

Uh, if it’s comparable to the most places. And like I said, yeah, it, uh, it, it, it’s gonna be. Really, really what they need as far as all of the technical trainings for the technical pieces, and then also the apprenticeship, which we’ll see how things go, but will be part of the IRA as well.

Allen Hall: Yeah. So what is your core technician?

Draw from? Like where, where, what kind of jobs were they doing before they came to Tower Training Academy? I’ve had, or were they coming outta high school or they coming outta the military? I’ve folks from both,

Nick Martocci: uh, I, I’ve had folks that basically were 18, 19 years old, just finished high school. I’ve had folks that were iron workers for years and decided to make a change ’cause they were tired of sitting on their couch [00:12:00] for a while.

Uh, I, I, I’ve had folks that were in sales, something totally different and then made a major shift. Uh, I’ve had folks that were in retail, you know, working at, you know. Calvin Klein or Aero Postel or something like that. And I, I’ve had folks from everywhere and every age I’ve had folks as, like I said, as young as 18 and 19.

I think the oldest was in their fifties.

Allen Hall: Yeah, that’s, I think that’s really fascinating. ’cause we talked to other training facilities and what they say is they’re coming from retail, which is odd. I thought, oh, they’re coming from farming communities, or something like that. Right. They’re a mechanic and like, no, no, no.

A lot of ’em are come from retail because they’re bored outta their mind and then they wanna go, go do something that has a little more adventure to it. And they’re young and they wanna earn some money, right? They want don’t wanna earn minimum wage, they wanna have a a career of which Tower Tri Academy gives them.

Oh yeah.

Nick Martocci: That is a huge advantage. But yeah, the big advantage that I see, like I said, is the partnership between Tower Train Academy [00:13:00] and IFC because anyone that’s an alumnus from Tower Train Academy will immediately have access for life. F to IFC, right? And Infinite Fidelis Consulting will be there always to be able to help out with resume writing, interview prep, job placement pieces, or if they just want the professional development pieces of the CMP and p and p certifications.

It, it, it’s there for you to be able to take advantage of.

Allen Hall: So all these new technicians and apprentices are coming to Las Vegas to get trained up. Where are they going when they finish? Uh,

Nick Martocci: I’ve worked with all different types of company, epic tack on, and you know, so on and so forth. Optic energy. Um, for the battery pieces and I’ve worked with others.

Uh, I’ve had a very blessed, blessed OMS this year. Uh, I’ve made a lot of connections here and I’m looking forward to sending technicians to many more companies. Wow, that’s fantastic.

Allen Hall: So you’ve grown in size, you’ve grown in scale, and it’s literally been scope Scope. Yeah. It’s been 12 months since we last talked to [00:14:00] you and it.

That’s tremendous. That’s a lot of work to do in 12 months, by the way, you’re working your tail off. Congratulations.

Nick Martocci: I’m trying. What does the next 12 months look like? Well, the growth is actually the piece. Um, I’ve got everybody in the office on a quote right now that I got from church, and I’m not trying to put my religion on anybody, but what is your 2026 gonna look like based on the decisions and choices you’ve made in 2025?

And so that’s really been the big piece. The other part is the growth. Because of the growth I’m looking for. And that’ll probably be our announcement next year. Uh, ’cause I’ve got about 12 to 13 months left on my lease and so we’ll probably be moving and finding a whole new location and so wait for updates on that one.

But, uh, we, we are definitely bigger than what we need to be as far as our head count in the facility. And so we, we definitely need a new facility to be able to accommodate all the training that we’re doing and. Some of the things that we’re wanting to do with a DO, [00:15:00] like I was saying, and I think there’s gonna be a lot, a lot coming down the pipe with that one as well.

So Internet’s, so ISPs

Allen Hall: and OEMs and operators across the United States. If you haven’t heard of Tower Drain Academy, you need to get on to the website and check this place

Nick Martocci: out. How do they do it? Uh, really easy. They just Google Tower Training Academy. Uh, I have folks all over that are willing to send out, uh, information and when we post this video, I’ll make sure that there’s a link for, for sure.

Uh, but literally all they gotta do is just Google Tower Training Academy and it pops right up and go to the Instagram page. It’s actually Instagram, uh, Facebook, LinkedIn, uh, and then we have a YouTube channel. You can follow us anywhere.

Allen Hall: It’s good stuff on your social media, on the YouTube. Yeah, very helpful.

If I was new to the industry, I would be going to your, your sites to check it out because. I will learn so much in a short amount of time just to get a flavor for what you’re doing in Las

Nick Martocci: Vegas. [00:16:00] It’s, it’s quite good. Well, with the social media piece is, what I try to do is be more informative of the industry itself, more than just to myself of, Hey look, this is Tower Training Academy.

This is what we got. Um, I wanna be able to also showcase everything that the battery industry is doing. Everything that the wind industry is doing, offshore pieces. There’s more than just what we do that impacts this entire industry. So. It, like you said, if I was somebody off the street and I wanted to learn a little bit more, having access to that type of information more than just me, you know, swinging my own bell around and saying, Hey, check me out.

Um, it it, it allows them to really, really learn and understand the industry. And that’s the biggest piece is keeping everybody informed. Yes, absolutely. So check

Allen Hall: out Tower Training Academy, Google it, go to the social media. Great to have you back, Nick. Thank you so much. Pleasure. Thanks for having me. We’ll, we’ll hopefully see you in 12 months or sooner.

And we need more updates because

Nick Martocci: things are happening rapidly there. Well, if you guys are at re plus, I know [00:17:00] it’s not OMS, but if you guys are at another, uh, another event, uh, that that’ll be in Vegas this year. Yeah. Feel free to pop in and come and check out the facility. Cool. Sounds great.

https://weatherguardwind.com/tower-training-academy-apprenticeship/

Continue Reading

Renewable Energy

Pardalote Studies Australian Blade Erosion and Heat Fatigue

Published

on

Weather Guard Lightning Tech

Pardalote Studies Australian Blade Erosion and Heat Fatigue

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

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

Welcome to Uptime Spotlight, shining light on wind energy’s brightest innovators. This is the progress powering tomorrow

Allen Hall 2025: Well, Rosemary, welcome back to the show.

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

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

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

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

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

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

What two areas are you going to focus on?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Rosemary Barnes: Thanks so much, Allen.

Pardalote Studies Australian Blade Erosion and Heat Fatigue

Continue Reading

Renewable Energy

Artificial Stupidity?

Published

on

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

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

Whom do these concepts upset?

Artificial Stupidity?

Continue Reading

Renewable Energy

No Such Thing as a “Dumb Question”

Published

on

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

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

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

You would have been wrong.

No Such Thing as a “Dumb Question”

Continue Reading

Trending

Copyright © 2022 BreakingClimateChange.com