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STL WindStart: Tackling the Wind Technician Shortage

Allen Hall and Joel Saxum speak with Brandon McKelvain and Jeremy McKelvain from Safety Technology USA (STL) to discuss their trailblazing WindStart program. They visited STL’s impressive training facilities in Abilene, Texas and discovered how the organization is addressing the critical shortage of wind technicians through hands-on, industry-focused education.

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

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Allen Hall: Welcome to the Uptime Wind Energy Podcast. I’m your host, Allen Hall, along with my co host, Joel Saxum. The U. S. wind industry needs to train thousands of new wind turbine technicians in the coming years to meet our ambitious goals for wind energy deployment. And today we’re joined by Brandon McKelvain training manager at Safety Technology USA.

Better known as STL. Also, Jeremy McKelvain who is the WindStart program manager at Safety Technology USA. Safety Technology USA, which is commonly called STL for short, is a leading wind technician training organization that provides industry standard accredited courses. Their goal is to help build the wind workforce.

of the future by training safer, more competent entry level and intermediate technicians. Joel and I visited the Safety Technology USA training facilities in Abilene, Texas recently. So if you haven’t been to Abilene, you should visit their facility. It’s pretty impressive. There we met with Brandon, and we’re really impressed by the level of training equipment and the variety of training programs.

So Brandon, Jeremy, welcome to the program.

Brandon McKelvain: Yeah, thank you, Allen.

Allen Hall: We need thousands of wind technicians. And right now, especially in West Texas, where you guys are there’s a huge demand for technicians that are trained and are knowledgeable in the wind industry. And, one of the, one of the programs you have To do that is the wind start program.

And I want to start there because I want to everybody understand what is the wind start program. And if you want to get into wind, why would you choose that program?

Jeremy McKelvain: What we do is we go out to career fairs trade schools, community college. advertise WindStart. Yes, it is STL or safety technology but it’s a program for it.

We get them interested and tell them what we offer through our WindStart program at safety technology, get them interested and then get them signed up for these classes. Give them their relevant training, all their certifications give them some extra training as well. That’s a little bit more technical to prepare them for an entry level job into the wind industry.

And then connect them with our partners that we have, our customers that we have for interviews, try and get them hired on right away. You mentioned that we have thousands of people that we need to hire. By 2030, it’s estimated that we need to hire close to 500, 000 bodies for the wind industry.

So doing this as a wind star program as the manager go in and we try and find those bodies there. You get good paying jobs. You have a reliable career. And for me, my whole thing was, I love helping people. I love helping people and guiding people. I’ve done it for 20 years in the Air Force. Now I just transitioned into this, so that’s what the windstar program is a way to introduce people into the wind industry.

Let’s be real. Let’s face it. Renewable energy is the way of the future and through safety technology, we can train those people through the windstar program and get them in an amazing career in wind as a wind technician. That’s it.

Joel Saxum: So you guys are going to high schools, community colleges what other kind of community outreach you do you guys do?

Cause you’re actually being like the boots on the ground, going and grabbing these people. Cause that’s what the industry needs, right? We know there’s training centers dot, dot it all over the place, but that effort to actually be the people that are going in talking to who could be these candidates and bringing them in to get them to that training.

That’s what’s really needed. So you guys are actually doing the boots on the ground activities as well.

Jeremy McKelvain: I went to one in Roswell, New Mexico last week that was for the job corps, for students young people who were either didn’t finish high school and they’re going back to finish their diploma, get their GED and learn some trait.

They reached out and wanted to see if we could, If we could attend. And I went and those people, they were extremely excited to see me. The students were, but also the director of the job corps and some of their instructors that taught their electrical training, their painting, their construction, their plumbing.

It’s just getting our voice out there, our name out there, and getting people interested for to basically spread the word on.

Allen Hall: So who is your typical candidate? What, like where, what’s their background education level? What are they looking to do for, to further their career?

Jeremy McKelvain: A lot of them know people, either friends or family that have been in the wind industry, and they know about it.

They want to do it. They just don’t know how to get into it. Or we’ll have recent high school graduates. People that did not finish a four year degree that want a job, want a good, reliable, good paying job with benefits just like our partners have. And those are the ones that really seem to pique the interest.

Somebody that wants to make something, make a better life for themselves and their families.

Allen Hall: And are they primarily based in Texas or are they coming from elsewhere?

Jeremy McKelvain: Right now we have traveled mainly through Texas. Thank you But I have had people reach out to me from Illinois, Oklahoma, Texas, New Mexico Iowa, South Africa.

I’ve had people from the UK reach out. We are, we’re not going to discriminate. And that’s one of my big things that I definitely learned in the military is provide people a chance. Diversity makes your workforce. And different points of view, work ethics. That’s what we want. We want to give people a chance.

We want to give them the tools to succeed in what we’re doing and what we can provide.

Joel Saxum: Yeah. So right now we’re talking about the wind start program. So when someone goes into the wind start program, what can they expect as far as costs, the act of education, they come out of there, any certifications they come out with and it’s in the length of time so that, if they’re listening, go, okay, I understand basically what’s required of me.

And. And what I’ll leave the program with.

Jeremy McKelvain: Our WindStart program has has a couple of different options. We offer a three week course and a four week course. Our three week course focuses around the GWO certifications, the Global Wind Organization certifications. You get your basic safety training, your basic technical training, your advanced rescue training, and then you get to take an elective.

Now that four week course, you’re going to get all of those things as well, but you’re also going to get An additional five days that focuses more on your technical training your your electrical, your mechanical, your hydraulics, things like that. That’s gonna be a little bit more industry specific, which everything really is.

But that’s gonna. going to give you a little bit more, but that’s our four week course.

Joel Saxum: So they may not come out of there as an expert, but at least he’s been exposed to, it’s going to not be the first time they’ve heard the word hydraulic or electric motor or something. When they get to the field, they may have, they’ll seen it before and they may have some working knowledge of it and, be that new team member that is going to need to be trained up in the real world, they’re not coming in completely green. They’ve got. They’ve got all their safety search.

They’re ready to hit the field. And they’ve been exposed to the, the general concepts within a wind turbine. To me, they’ll be steps ahead, right? Light years ahead of someone that’s just walking off the street.

Brandon McKelvain: The WindStar program, it really it hits home to me personally, because, What Jeremy’s talking about that was me, I didn’t have I wasn’t gonna go to school for four years I was you know, I was not suited well for that didn’t want anything to do with school But I needed a good pay a job, you know Wasn’t you know, I needed to get out and work, And that’s the other thing is, to go to a you know A two year trade school or something like that also wasn’t in the cards for me I needed something quick.

I needed to just get in. And, fortunately I was hired, right out of high school, but I was just thrown off into the deep end, and there, there wasn’t good training for me for the first few years and whatnot. And then I linked up with a better company and I got the good training and I grew up around a shop atmosphere and, things like that.

I knew, mechanics and, all that good stuff. My dad was a mechanic going to shop and. So I knew some stuff, but when it came to things like electricity, I knew nothing and I had no business being out there, so we come at it from a unique perspective.

All of our instructors here have, most of them have over 10 years of field experience in this industry, and they really know what the competencies are and what we need. And all of us have that same perspective of man I wish I would have known this a long time ago.

I wish I would have known this day one These are the fundamentals. Why aren’t why isn’t anybody teaching us these things, and it’s simple stuff, like schematics, digital multimeters just very basic fundamental things that we’ve tried to push into the Windstar program, for us, it’s the experience of this is the, this is what we feel like is the most pertinent information to get into three, four weeks, and that’s going to build safety, but it also triggers a base for for them to start growing as technicians.

And those are the things we really want to focus on.

Joel Saxum: So Brandon, now we’ve been talking about the WindStart program, but when Alan and I visited the facility, there was a lot more than that going on. Actually, matter of fact, we visited two facilities, right? We visited a brand new training center that you guys were building out for more technical.

There was a frickin gearbox in there. You had awesome setups for bore scope inspections, and you had cabinets for, electrical training and all kinds of tools. It was a great, that was a great facility, but the first one we were at, All kinds of training going on, advanced rescue, you had mock ups of nacelles where people had to, pull, basically pull, what would be a body, I’m gonna call it a dummy, not that we’re, none of us are dummies, but they had to pull them, had to pull them through a whole tower set up out back for for rescue training and, going over, we talked at length about, that, that last step going over the edge when you’re descending on ropes, but you had all kinds of other training things and there, and the whole parking lot was full.

There was people from. crane companies and service companies, ISPs doing all kinds of different safety training, CPR stuff. So you want to touch on some of the other things that you guys offer as well?

Brandon McKelvain: Yeah, absolutely. Like Jeremy said, the GWO, the basic technical, basic safety, the advanced rescue we do a lot of QEW, qualified electrical worker training for low voltage, high voltage based on the 2024 version of 70E.

That’s really popular and honestly, that’s become one of my favorite courses out there because I think that’s one of the things that the industry isn’t doing that great of a job, at least in terms of execution. So that one’s great. But yeah, the technical facility, we’re starting to build out more advanced courses gearbox, bore scope class we’re working on adding a Three phase motor control class.

So I think that’s going to be very beneficial. That’s another thing that the I think is lacking a little bit as far as the, the education for our technicians because we deal with a lot of three phase and as and I’m just speaking from experience, but I didn’t understand three phase the way I should, so there we are again, we’re looking back at things that, really would have helped us as technicians, not only from a safety perspective, but, Also to just grow and develop, those are the things we’re trying to focus on. And, as we continue to build out those more advanced courses, that’s great.

But really, the wind start is that, okay, what’s day one? What is what does it take to get somebody, say, out of high school or who wants to change career path? Somebody coming out of oil and gas, or a veteran coming out of the, services. What does it take to get them, not only safe, but also start introducing them?

To, to these concepts that they’re really going to need as a technician in wind.

Allen Hall: The facility if I’m coming into a training facility, one of the scary parts here is, does it have the latest equipment? Does it, are they, do they have classrooms that are upkept and clean? And do they have, even the fundamentals like, is there restrooms?

Those kind of silly things matter if you’re going to be there for three or four weeks. If you’re going to be there for a day, Not mad or so much, but when Joel and I took the tour of both facilities, clean, up to date, modern, had all the proper equipment, particularly all the, like the voltmeters and all that kind of thing.

Borescopes, new. The equipment that’s being used out in the real world. So it’s not such a huge jump where you’re going from the classroom to an actual turbine. That’s the stuff they’re using. And you’re putting your hands on it as a new entry. into that wind turbine technician world. You need that, right?

You need to be familiar with the equipment they’re using out there. And I think this is where your training makes total sense for someone who’s coming into the industry that probably has mechanical skills, has some electrical skills as we see the new technicians roll in, but they haven’t played with the fancy toys yet.

Joel Saxum: That may be the downfall. You guys stuff may be too advanced and too nice for them. They’re going to, they’re going to get out into a turbine and be like, this wasn’t what it was like when I was in training.

Brandon McKelvain: But we can take them out of the tower whenever it’s 110 degrees, then they they get a good experience.

Joel Saxum: Wait for a dust storm to roll through Abilene and then go outside. Come on guys.

Brandon McKelvain: No, we really appreciate that. And and it, and again, I think that’s the, that’s the fidelity of this, and that’s why the experience really matters and coming from the industry and it’s certainly not me.

We’ve got some really good instructors here and the secret is I’m a C minus guy myself, right? So if they can get their delivery to where I can understand what they’re teaching, hey we’re doing really good, and we have a good product,

Allen Hall: Brandon, I want to get to that point because I do think people downgrade themselves based on what happened in high school. And I think that’s a tragic mistake. If you’re a C plus student in high school, it has really no influence on what you’re going to do going forward, right? It’s time to pick up that heavy load and put that on your back and do the right thing here.

You can get educated. The people I mean are technicians or smart people, right? They may not have, they may not understand calculus, but who the heck cares? They make computers for that. Yeah, to each their own. But the thing is Joel and I spent a good couple of weeks in Oklahoma and Texas meeting a whole bunch of technicians Those guys are doing all right.

A lot of them are doing great. Yeah, it’s, it can be a great profession and you don’t have to have a perfect high school score to get in to learn how to do electrical work, to do how, learn how to do mechanical work, to learn how to climb a turbine. Those things are skills. Those are your hands and your brains working together, which is a talent still.

Brandon McKelvain: Yeah, and and this was something that really changed me whenever I got into the training was, Oh, very good. You realize exactly what you said, high school, even college is really no basis to what, you can do is in terms of performance in your career. Because a lot of that is focused around teacher centered learning lectures and things like that, which are great for some people, but not for a lot of us, especially the ones that are going to be more technician more hands on or go into more vocational schemes.

So we try to make things as student centered as possible. That’s where all those tools and, the meters and all that stuff comes in because you, if you’re putting those on the desk and they have something to touch and to follow along with, and then at the end of it, they have a knowledge check to where they can go out in the shop and they can try to implement the knowledge that you’re trying to to give them it’s great.

And that’s not only just, that’s just adult learners in general, I think, because we have good experience, you’re not dealing with people that have nothing, you can. You can find something that they know that they’re already really sharp at. And we just, we try to just build on that.

Joel Saxum: And like you said, all of your trainers are ex technicians. So they’ve been through it. They’ve been in that position before they’d been in the turbine. They, it’s not you’re listening to an HR professor teach you about HR. That’s never actually worked in the, in HR. You know what I mean?

So and I guess and I guarantee that almost all of you can be on the same page as this one is sometimes a client, an asset owner will send some of their engineers from the back office out to the field to go visit the turbines. Those people need their hands held by the technicians that are out there doing the work when they go up tower.

And this hands in your pockets, hands in your pockets.

Allen Hall: So let’s talk about how people can get rolled, enrolled at STL either in the WindStart program or some of your GWO training that’s there. How does that happen? What’s the, Best steps to get started here.

Brandon McKelvain: Yeah if people want to sign up they can go to our websites.

We have a tab dedicated to the WindStart program. Very short information that they fill out and then somebody gets in contact with them gives them, a lot of good detail on the program which is also available on the website. But if they have any questions or, want to talk to somebody Jeremy will be reaching out to them or somebody else.

Joel Saxum: Yeah. One of the things I want to touch on here as well as there is some financial assistance available. So through the Workforce Innovation and Opportunity Act. There’s a possibility of up to 4, 500 towards course fees. There’s also some Sally Mae funding eligible. And then you guys actually, I believe because of the IRA bill are working forward towards getting that apprenticeship program going that will fulfill that for people in the field as well.

Brandon McKelvain: That is correct. And those are all things that we’re super excited about. Because, we recognize that not everybody can do this, financially and, you look, let’s be honest. We’re targeting people that want to get out there quickly and start working, right? So they probably, they’re ready to go make some money.

So if we can assist them in any way, that’s exactly what we want to try to do. And we’re already starting to do that right here on our own backyard. Abilene is, I call it The wind capital of Texas, and like you guys said, there’s a lot of technician jobs just in West Texas.

So let’s start right here, we’re starting to reach out to as many people as we can and just letting them know. And, Jeremy touched on it earlier. I think a lot of it is, there’s plenty of people that want into the industry, but they have no clue where to start.

And, you think about it this way, probably the top five emplo employers that have the most technicians in the U. S. If you weren’t in the industry, you probably have no clue who they are, I could say some really big names to you guys, and sure, yeah, I know all about them.

But if I say it to somebody who’s getting out of high school or is just outside the industry in general, They go, okay, that’s cool, but they have no clue some of them. They go. Oh, I didn’t know they did that I thought they just made microwaves, right? And you guys can you can deduce who I’m talking about But that’s the point, and so I think that’s why things like the wind start program and what Jeremy’s doing this grassroots approach of He’s he’s My heart goes out to him because it’s got to be frustrating, because he’s going out there and he’s having these same conversations again and and, but that’s what needs to happen.

That’s what needs to happen. I don’t know how else you do it, unless you start running ads in the Superbowl or something.

But that’s it was.

Joel Saxum: We’ll wait to see that next year. But you guys are also doing your, you’re helping buy side sell side, right? So all the companies the big ones that we’re talking about, whether it’s an OEM or a big ISP or anybody, they’re looking for people.

Contact STL as well, because not only can you get your people that you have trained, but they’re bringing in a pool and Jeremy becomes basically one of your best recruiters that you actually don’t pay for. Because he’s going out grassroots, grabbing the people, getting them trained, and then basically can provide you a portfolio of, Hey, all these guys are ready to hit all these guys or girls ready to hit the field.

You want some of them? And they’re already vetted. They already have a little bit of training that’s. So if I was an ISP, I’d be contacting you guys.

Brandon McKelvain: Absolutely. And that’s the idea. People can scoop them up as they come through the program and they’ve had some financial assistance. Hey that’s even better for the companies, cause otherwise they’re going to hire them without experience and then send them here anyway, probably.

So it’s a win for everybody and that’s what we’re trying to do. Jeremy mentioned that 500k number, which just is crazy to me every time I hear that, is all we know to do, to try to start chipping away at that. And hopefully, everybody else gets on board with that.

Start talking to your neighbors start in your own community, there’s plenty of hard working people out there, I worked some really hard jobs growing up, did some, pre bar roofing, construction, things like that, and it makes you appreciate, finding a good job, finding a good career, so I know there’s a lot of hard working talent out there.

And what we’re teaching isn’t rocket science, it’s, it, you can get as deep into it as you want, but at an entry level for a wind tech, you can pick this stuff up pretty easy. You just need a good work mentality. You got to show up and be a hard worker and listen and learn and.

That’s it. You can do really good.

Allen Hall: Like you said, Brandon, we have a lot of technicians that need to fill that void in there. Oh, there’s several good paying jobs available right now. So if you get trained up you can be part of the wind revolution that’s happening in Texas and all around the United States.

So reach out to everybody at STL by going to the website at safetytechnologyusa. com. Brandon, Jeremy, it’s been great to have you on the program and yeah, keep us up to date as things progress because the wind technician shortage needs to end and you’re part of that fix. Thank you guys.

Brandon McKelvain: Thank you, Allen. Thank you, Joel.

https://weatherguardwind.com/stl-windstart-wind-technician-shortage/

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The Trump Delusion

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As shown here, there are (formerly credible) people who are telling us that Trump is restoring Americans’ trust in government.

Do they truly believe this?

The Trump Delusion

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When Truth No Longer Matters

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One of the casualties of the post-truth era is that the statements of our “leaders” no longer are required to have any basis in fact.  What Jim Jordan says here is a fine example.

When he says “better” here, is he referring to runaway inflation?  Trump’s purposeless and illegal war with no end in sight?  His blatant corruption and criminality? His having, quite successfully, divided the American people into groups that hate each other?  The enrichment of billionaires at the expense of the working class?  The carefully engineered collapse of the environment so as to favor his donors in fossil fuels?  The demise of the U.S. educational system?

Please be clear.

When Truth No Longer Matters

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CNC Onsite Cuts Repair Costs With Uptower Machining

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CNC Onsite Cuts Repair Costs With Uptower Machining

Søren Kellenberger, CEO of CNC Onsite, joins to discuss uptower yaw gear repairs, flat tower flanges, and replacing 1,000 blade root bushings across 26 turbines.

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!

Allen Hall 2025: Soren, welcome back to the podcast.

Søren Kellenberger: Thank you, Allen, and, uh, nice doing it, uh, face-to-face- Yes, it’s great … and not as a team, uh, call. Right. That’s

Allen Hall 2025: true. Yeah. You’ve been doing a good bit of traveling, and you’re the new head of CNC Onsite.

Søren Kellenberger: I am, yes.

Allen Hall 2025: So congratulations on that.

Søren Kellenberger: Thank you very much.

Allen Hall 2025: And all the exciting new things that CNC Onsite [00:01:00] is doing, plus all the things you have developed and are now out in the field implementing, the, the list goes on and on and on.

I’m alwa- every time I talk to you, “Oh, we got a new-” Yeah … “machine to do something uptower.” So it’s all uptower, which is the, the beauty of CNC Onsite. You’re thinking about the operator and the cost to pull the blades off and do lifting the cell off and all those things. If we can do it uptower, we can save 30, 40, 50% of the cost of a repair.

Søren Kellenberger: Yeah.

Allen Hall 2025: That’s where CNC Onsite is just really killing it. You guys are doing great. Thank

Søren Kellenberger: you. Of course, we like what we do, but, uh, thank you.

Allen Hall 2025: Yeah. Yeah. Yeah, yeah. No, it’s good, it’s good. And, and so w- let’s talk about the things that I know about, and we’ll start there, and then we’ll go to all the new things you’re doing.

So the one that I see a lot of operators asking about is yaw tooth. Yeah.

Søren Kellenberger: Uh,

Allen Hall 2025: deformations, broken teeth on the yaw gear. That’s a big problem. And when I talk to [00:02:00] technicians, and I have them texting me about this, like, “Oh, well, I just weld on the gear back on, weld the tooth back on.” That’s a short-term solution.

That’s not gonna be long-term. The long-term solution is the CNC Onsite. Can you explain what you do to permanently fix these yaw gear problems?

Søren Kellenberger: Yeah. So what we do is actually we start by getting information about the, uh, original yaw ring, so the dimension of the teeth, and we get some load data. And, uh, then we start designing a replacement segment.

Uh, so what we ac- the process is actually that we bring a CNC controlled machine uptower, mount it on the yaw ring, and then we mill away that worn area, uh, creating a small pocket. And then those, uh, segments that we have designed, they are prefabricated. We bring them up and mount them in, in that, uh, pocket and bring the- The yaw ring back to where it’s, you can say, original design, uh, [00:03:00] that way.

Yeah

Allen Hall 2025: It’s better than the original design, ’cause you’re actually putting in better teeth than the, the manufacturer did originally.

Søren Kellenberger: True. Yeah, yeah.

Allen Hall 2025: So that happens, so you’re, you’re machining out those old teeth, broken teeth, putting the new set of teeth in th- and that all bolts in, and that’s it. That’s it.

But the, the difficulty is getting the machinery uptower to do that. That’s where a lot of your, your technology comes from, is getting this very accurate, uh, well-defined machine uptower and doing very controlled grinding and milling. Yes. So can you explain what that system looks like? If I’m gonna grind off those yaw, broken yaw teeth, how big is that kit?

Søren Kellenberger: It… Obviously, it depends a little bit on the turbine size. Sure, okay. Yeah. So, uh, it, so the, the newer five, six, uh, 10 megawatt turbines have larger teeth, so yeah, there you need a, a larger machine.

Allen Hall 2025: Okay.

Søren Kellenberger: But let’s say for, uh, Vestas three megawatt, the, the [00:04:00] complete machine weighs about 250 kilos. That’s it? So yeah.

So it, it comes up in smaller components. We just use, uh, the, the internal crane in, in the nacelle, and, uh, then we can lift the components to the yaw ring, assemble the machine, and then we are basically good to go. So it take, takes less than a day to get everything up and, uh, get set and be ready to, to machine.

Allen Hall 2025: So if you wanna fix a yaw gear problem, how long does it take from start to finish to get that done?

Søren Kellenberger: It typically, it takes one day to get everything up and get ready, and then per six teeth, which is a typical segment, it takes about a day to machine that. Okay. So, uh, let’s say you have, uh, somewhere between 10 and 15 teeth, it’s, uh, two to three segments.

So we do that in a week. Um-

Allen Hall 2025: Wow … and- ‘Cause the alternative is call a crane, have them lifting the cell off.

Søren Kellenberger: Yeah.

Allen Hall 2025: Take the yaw gear off, put a yaw gear on, if you can find a yaw gear. Yes. Put the nacelle back on. [00:05:00] Well, and I guess obviously the rotors are coming down too, so- Yeah. You’re talking about- Yes

hundreds of thousands of dollars in downtime. Yeah. It’s a big ordeal. The CNC Onsite method is so much easier.

Søren Kellenberger: We will just put our equipment in the back of our truck- … and then, uh, we’ll, we are ready to mobilize in a few days. So yeah, we can significantly, uh, bring down the downtime and, and as you said, the crane cost is of course extremely high.

And then you can add all the project management. You know, con- do I actually have my access roads, uh, still available? Right. Is the crane pad intact? And all of that stuff you need to organize. You can just forget about that and, uh- And

Allen Hall 2025: get it done …

Søren Kellenberger: get it done. Yeah.

Allen Hall 2025: Yeah. There’s, there’s a lot of owners, we, everybody knows who the machines are that have the, the, the yaw tooth problem.

Søren Kellenberger: Yeah.

Allen Hall 2025: So if you’re one of those owner operators, you better get ahold of CNC Onsite. Now, flanges on tower sections. It’s become a, a really critical issue. You hear a lot of, of [00:06:00] operators, OEMs talking about, “I’m putting together these tower sections and those flanges don’t really meet up quite right.”

Søren Kellenberger: Yep.

Allen Hall 2025: “I’m creating uneven torque patterns, bolt pat- my bolt tightening is not quite right.”

Søren Kellenberger: Yeah.

Allen Hall 2025: And it never really seats right, so you have this mechanical, built-in mechanical problem. CNC Onsite is now fixing that so those flanges are actually really flat. Really flat, yes. ‘Cause that’s what you need.

Søren Kellenberger: Yeah.

Allen Hall 2025: Yeah. They’re highly loaded.

Søren Kellenberger: If, if you want, uh… If you want your joints to be, uh, basically maintenance free, uh, we can, uh, achieve that with machining the flanges. And then, of course, you need to be in control with your bolt tightening process. Sure. But if you do those two things, you can have maintenance free bolted connections, and there’s so much money to be saved in the operations.

Um, and of course, when you have these bolts that end up fatiguing, some of them don’t get caught in time and you end up ha- having a catastrophic failure on the turbine. Uh- We’ve [00:07:00] seen that … because you have that zipper effect. Once a bolt starts breaking, the neighboring ones take that extra load and it accelerates really quickly.

Uh, yeah. Sure does.

Allen Hall 2025: Yeah. It’s a very serious situation, but it starts with this very simple solution which is just make the flange flat.

Søren Kellenberger: Yeah. But I think it’s some… a part of the issue is that those buying the towers aren’t necessarily responsible for the operational cost of maintaining that bolted connection.

So they might save a little bit of money when they buy the tower sections with rougher tolerances, but you will spend the money 10 times in the operations. Uh, and, and that’s, I think that’s where some of the operations, uh, re- the, the, those responsible for operational costs should, uh, get a little bit more CapEx spend, uh- Oh, sure.

Yeah. And, and then, uh, actually save a lot of money and, and reduce risk. Uh, it’s a huge, huge risk

Allen Hall 2025: It’s, it’s one of those lessons learned. You [00:08:00] don’t know that they should be flat. You shouldn’t know… You don’t know your flanges should be flat until you experience the problems, and then you want all your flanges flat from here on out.

Søren Kellenberger: Yeah.

Allen Hall 2025: But there’s only one way to do that really, and that’s to call CNC Onsite to come in and to make them flat.

Søren Kellenberger: Yeah.

Allen Hall 2025: Because it’s a difficult thing to do. You really need to have the machining prowess and the tight tolerances that CNC Onsite’s gonna deliver in a tool that can actually be adapted to that tower ring and make those surfaces flat.

It’s complicated. Exactly.

Søren Kellenberger: It is. Uh, but that is what we do every day, so, uh- Yes, I’ve noticed … yeah, so

Allen Hall 2025: so- You take on those challenges

Søren Kellenberger: So we are optimizing our machines to be not only fit for one-offs, but actually to go into a manufacturing, uh, process. So we have op- optimized our machines a lot with, uh, automatic alignment and, uh, stuff like that to, to really make that process, uh, easier.

Because it has been considered that when you had to machine a flange, you weren’t in [00:09:00] control with your production, uh, processes. But I think that is, um, a bit of a misinterpretation. It’s, it’s a little bit like saying when I have a casted component, I cannot get a bearing fit, uh, in my cast process. That’s not because your cast process is wrong, there’s just some limitations to what you can do.

Sure. And it’s basically the same here. Yes. And, and if you apply that con- uh, planned machining, you can gain some real benefits, uh, later on and the cost will, of course, drop dra- dramatically if you plan it, rather than call for one, uh, every time you have one that is out of tolerances and, and you can even narrow those tolerances down and get the benefits from maintenance-free bowler connections.

Allen Hall 2025: Right.

Søren Kellenberger: Uh-

Allen Hall 2025: Right, ’cause you’re gonna pay for it for the next 20, 30 years. Yeah. Yeah. That’s absolutely right. Now, you’re getting involved in some of the safety aspects of operating a turbine. Uh, some of the pins and the lockouts on the low-speed gearboxes get a little worn over time, so the hole [00:10:00] you put the pin in gets worn.

There’s a lot of loads on that and- Yeah … it starts to oblong out and eventually, if you’re trying to work on that gearbox, you’re trying to keep that and your technicians safe, which is what you’re doing- Yeah … that lockout pin doesn’t quite fit in the hole and it creates a little bit of a safety risk.

Yeah. So now CNC on-site’s coming in and saying, “Hey, wait a minute. We can realign that, clean that hole up, make that safe again.”

Søren Kellenberger: Yes.

Allen Hall 2025: Explain what that looks like and what that process is to do that.

Søren Kellenberger: Yeah. So again, it’s the same thought like with the, with the O-ring, uh, that instead of bringing a component down and trying to fix it, we have designed some machinery we can bring uptower and then make that repair.

So basically what we do is that, that we mill that hole a little bit larger and then we bring a bushing, uh, that we, uh, freeze into that hole- Okay … and to recreate that tight fit again with a, with a locking pin. Uh, so it’s, it’s not that [00:11:00] complicated, but you still need to know, of course, what you are doing.

So finding the center of the original hole is one of the critical things because you want the center of the new ring to be in that same position- Sure … to make sure it fits with the pin

Allen Hall 2025: right. So- Right. You can’t just take a drill up there and try to clean out that hole. No, no. That is not the way to do that

That,

Søren Kellenberger: that

Allen Hall 2025: won’t work. No, no . I’m sure it’s been tried, but- Yeah … no, you wanna have accurate mach- actual, uh, tight tolerance machinery up there to, to align that hole, drill it properly, put that insert back into that spot- Yeah … which is gonna be a hardened insert so it’ll last longer, right?

Søren Kellenberger: Yeah, yeah.

Allen Hall 2025: So once you do that, y- it’s a permanent fix to a otherwise nagging problem.

That’s wonderful.

Søren Kellenberger: Yeah.

Allen Hall 2025: So, th- again, that kit just goes right uptower, right up the, the lift, right up the cl- crane- Exactly … and bang, you’re done. Yeah. Okay.

Søren Kellenberger: So all our machines are designed to be able to be lifted with the internal crane-

Allen Hall 2025: Yeah …

Søren Kellenberger: of that specific nacelle.

Allen Hall 2025: Okay.

Søren Kellenberger: So obviously as the cells go bigger, they have more load cap- uh- Me too

load capacity. Yeah. So for the smaller [00:12:00] turbines, the machines come in, in a bit smaller parts- Okay … so that we are sure we stay within that 250 or 500 kilogram or even whatever the limit is of, of that- Yeah, yeah, yeah … crane. And then we can, uh, reassemble everything uptower and still do tolerances within a few hundredths of a millimeter.

And, and I think that is, that is really the core of, of what we do that, that we can achieve those workshop tolerances on site, um-

Allen Hall 2025: It’s crazy when I tell people that. I say, “Well, you know, CNC on-site, they can’t… I mean, those, those tolerances can’t be that tight.” And I say, “No, no, no, no. They’re talking about, you know, fractions of a millimeter,” which in, in American terms means fractions of a mil.

Yeah. That’s 1/1000th of an inch. That’s the tolerance you’re doing.

Søren Kellenberger: Yeah.

Allen Hall 2025: Uh, and that means quality at the end of the day. If you can machine things that tight, that means what you’re getting is gonna be right for that job. Yeah. It’s gonna fix that, fix that problem permanently, which is the goal. Yes. Don’t recreate the problem.

Just fix it once and be done. Now, blade root [00:13:00] inserts, huge issue. CNC on-site has been developing tooling to drill out those existing inserts and, and put in new inserts, and you’re having success with that.

Søren Kellenberger: Yeah.

Allen Hall 2025: That’s a… it seems like a complicated process, but you have owned that quite well. Talk about what that machinery looks like today, how you’re doing that process, and what have you learned from doing some, uh, field work.

Søren Kellenberger: It’s, uh… we actually, we’ve, we’ve developed two different machines now. Okay. So we, we have, we have one that is, uh, fully CNC controlled, uh, when you need to do a lot of bushings. Yeah. Um, that one takes a bit more, uh, time to set up, but, but, uh, each drilling process is, is really fast. Uh, and then we have developed a semi-automatic machine as well, uh, which is a little bit easier to mount, mounts directly on the blade.

And it’s, uh, really perfect when you only have smaller areas of the, the blade root where you don’t need to replace all bushings- But maybe typically it’s, it’s in the high load [00:14:00] area, which is 15 to 20 bushings maybe. Right. Something like that, right? Yes.

Allen Hall 2025: Yeah.

Søren Kellenberger: So, so there we can just mount it directly on the blade and, and then drill from, uh, from there.

Um, and it works really well. We completed, uh, the first large scale, uh, commercial, uh, project, uh, together with our good friends from, uh, We4C. Uh- Right.

Allen Hall 2025: Yes.

Søren Kellenberger: And, uh, and now we are producing, uh, two more drilling machines- Oh … uh, for, for new upcoming, uh, projects also together with, uh, the guys from, from We4C.

Allen Hall 2025: Wow.

Søren Kellenberger: So now it’s, it’s starting to, uh, to pick up. Um, it’s been a relatively long process, and I guess no one really wants to be the first mover on, uh, on new technology, right? Right. So we’ve had a lot of questions. Oh, that… And that looks interesting, but how many, uh, turbines, uh, or how many blades have you repaired?

And it’s been up until now, well, it’s only tested in the lab. Uh, but now we have the first, uh, large scale commercial, uh, project with, uh, 26, uh, turbines, [00:15:00] uh, repaired and, uh, and 1,000 bushings, uh, that were replaced, uh, across those, uh, 26 turbines. So-

Allen Hall 2025: Wow …

Søren Kellenberger: so I guess that is now large scale. Uh-

Allen Hall 2025: That’s large scale.

Yeah. Yeah. I would consider 1,000 a large scale test. Yeah. Yeah. Yes. And that brings all those turbines back to life.

Søren Kellenberger: Absolutely. They are up running, uh, full power again, so, uh, that is, uh-

Allen Hall 2025: That’s huge …

Søren Kellenberger: really nice.

Allen Hall 2025: For the operator, I’m sure they love that.

Søren Kellenberger: Yeah. And, and of course, uh, there’s, there’s been a lot of discussions about blades and, uh, bla- the, the waste, uh, issue you have on, on worn- Oh

out blades. Sure. So by being able to fix them instead of replacing them, not only is the, the cost for fixing a blade a lot lower than buying new ones, uh, but, but also from a, an environmental perspective. The not having to scrap them and create that waste is, uh, is also a nice, uh,

Allen Hall 2025: thing. Yeah, it’s one of the things that pops up more recently about replacing blades, and I think the [00:16:00] industry and the operators are pushing back on that.

Uh, because a lot of times the OEM wants to replace a blade, it’s just easier for them to do.

Søren Kellenberger: Yeah.

Allen Hall 2025: But the reality is, is that yeah, you’re creating this additional problem. What are you gonna do with the disposal of this blade? Do we really need to do that? Is it so far gone that I can’t recover it? I think a lot of times, especially with fiberglass blades- Yeah

you can bring them back to life.

Søren Kellenberger: Yeah.

Allen Hall 2025: Just with a little bit of engineering, uh, prowess and some good machinery- Yeah. You can, you can make magic happen, and that’s what CNC OnSite is doing. So that, that’s really amazing that, uh, you’re starting to get more adoption of that on, on the blade root inserts. I know across the United States there’s all kinds of issues, and you’re proving it out.

I think the adoption rate in America and all over is gonna really step up. Now, uh, you always have some cool new project, sort of top secret. What are you working on that the world needs to know about?

Søren Kellenberger: Yeah. W- I mean, we are constantly, uh, [00:17:00]expanding our, our line of services. Uh, so- Sure … so we are just out there trying to listen to what kind of issues do we see in, in the industry-

Allen Hall 2025: Yeah

Søren Kellenberger: and how can that be fixed, uh, uptower. So, so some of the, the latest, uh, innovations we’ve been doing is a, a new machine on, um… to, to do shaft milling. Uh, so that c- that can be on generator shafts, uh, for instance. There are some machines out there, but we’ve decided to go, uh, against CNC control- Okay

because it gives us a lot of, uh, opportunities both on, on speed, uh, of the process. It’s a more safe, uh, way to, uh, to do it.

Allen Hall 2025: Sure.

Søren Kellenberger: And we can actually also do different, uh, shapes on the shaft, so, so we can do more advanced, uh, repairs. Okay. We, we don’t need to stick to a certain diameter all the way. Now we can, we can mo- make grooves, and we can do, uh- Really?

all sort of sorts of stuff, uh- Oh … along that process because it’s CNC controlled.

Allen Hall 2025: Oh, sure. Okay. Um, and- Boy, okay. That makes a lot of sense. So you can actually take a, a, a basic, [00:18:00] basic, basic design of a shaft and make modifications to it- Yeah … to extend the lifetime and make it work better.

Søren Kellenberger: Yes. So typically we would mill down, uh, the shaft and- Sure

install a sleeve- Sure … to recreate a, a bearing fit, for instance.

Allen Hall 2025: Right. Yeah.

Søren Kellenberger: But we have possibilities to, uh, to create, um, grooves or anything that would do a stress relief or whatever you need, lubrication, or if you, if you want to do something, uh, afterwards, we, we can do that with, uh, with our machines.

Uh- Yeah. So yeah, we, we have some new machines for, for hollow shaft, uh, machining, so we can do stuff, uh, inside the main shaft, for instance. We can do stuff on the, the outside, as I mentioned on, on the generator shaft, but that could be on the gearbox as well. So- Sure … sometimes we see issues on the main shaft to, to gearbox, uh, connection.

Allen Hall 2025: Yeah.

Søren Kellenberger: We are able to, to fix, uh, those, uh, things uptower. Wow. And, uh, so yeah, lot of new, uh, stuff being, uh, developed.

Allen Hall 2025: That’s, that’s awesome.

Søren Kellenberger: [00:19:00] Yeah.

Allen Hall 2025: And I, I know you guys are busy, but- If somebody wants to get ahold of CNC Onsite and get work done this year, they better be making phone calls to you- … quickly. So I, I know your order book is filling up and you’re, you’re having to devote crews and machinery and time.

Yeah. How do people get ahold of you and get on that contact list and can start working the process?

Søren Kellenberger: I would say go into, uh, cnconsite.dk and, uh, there we have all our, our contacts. Uh, so just reach out. There’s a, yeah, formula you can, uh, fill in, uh, or you can find our direct contacts in our webpage, and, uh, then we can start looking at it.

So we are quite busy, but we are always- Yeah … open for, uh, discussions and, uh, yeah. That,

Allen Hall 2025: that’s a problem with being successful, is you’re just always busy running around trying to take care of problems, and that’s the thing, is that everybody I talk to that’s used CNC Onsite loves it-

Søren Kellenberger: Yeah …

Allen Hall 2025: and loves the process and loves the work you do.

So there’s gonna be a lot more phone calls and a lot more orders coming your way, and that’s- Yeah … that’s awesome. [00:20:00] Soren- Yeah … it’s so good to see you again and it’s so good to see you in person. Yeah. And congratulations on the promotion and everything that’s happening at CNC Onsite.

Søren Kellenberger: Thank you, Allen. It’s a pleasure.

CNC Onsite Cuts Repair Costs With Uptower Machining

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