Talking trees with Overstory: helping utilities trim with power

Trees are a major cause of power outages. They're also a wildfire risk—when branches hit a conductor, a small spark can become a big blaze. Lynn Petesch of Overstory joins thinkenergy to talk trees, exploring how AI, satellite imagery, and vegetation intelligence help utilities prevent outages and reduce wildfire threats. Including Hydro Ottawa, who saw a 44% drop in tree-related outages since partnering with Overstory. Listen in for how we work together to keep the grid safe in an era of extreme weather.

Related links

• Overstory: https://www.overstory.com/

• Lynn Petesch on LinkedIn: https://www.linkedin.com/in/lynnpetesch/

• Trevor Freeman on LinkedIn: https://www.linkedin.com/in/trevor-freeman-p-eng-8b612114

• Hydro Ottawa: https://hydroottawa.com/en

To subscribe using Apple Podcasts:

https://podcasts.apple.com/us/podcast/thinkenergy/id1465129405

To subscribe using Spotify:

https://open.spotify.com/show/7wFz7rdR8Gq3f2WOafjxpl

To subscribe on Libsyn:

http://thinkenergy.libsyn.com/

---

Subscribe so you don't miss a video: https://www.youtube.com/user/hydroottawalimited

Follow along on Instagram: https://www.instagram.com/hydroottawa

Stay in the know on Facebook: https://www.facebook.com/HydroOttawa

Keep up with the posts on X: https://twitter.com/thinkenergypod

-----

Transcript:

Welcome to thinkenergy, a podcast that dives into the fast, changing world of energy through conversations with industry leaders, innovators and people on the front lines of the energy transition. Join me, Trevor Freeman, as I explore the traditional, unconventional and up and coming facets of the energy industry. If you have any thoughts, feedback or ideas for topics we should cover, please reach out to us at thinkenergy@hydroottawa.com, Hi everyone. Welcome back. Today on thinkenergy, we're going to be talking about trees. Yes, you heard that correctly. Trees. I know this is a show about energy, but there's actually a very real connection between our electricity grid and those slow growing, majestic givers of shade, lumber, fruit and so many more benefits. Honestly, who doesn't love trees? But I'm not just kicking this episode off in my capacity as a tree hugger. Let's take a look at this through a utility lens, and I will use Hydro Ottawa as an example. Hydro Ottawa service territory includes some very rural and very forested areas. Even our urban territory has a fairly extensive tree canopy. As a result, Hydro Ottawa trims about 60,000 trees each year. Why? Because trees contracting power infrastructure is a big problem. Tree interference remains a leading cause of power outages for us. Strong winds force them onto our wires. Heavy snow or freezing rain builds up and weighs down branches, breaks limbs, and increases the risk that part of a tree may touch a line, and in some extreme cases, heavy storms can even send trees or branches crashing into our poles, damaging the poles. The struggle between power lines and trees, which, again, don't get me wrong, we all love trees, has been going on for years. There is a constant struggle between trimming enough and getting the right trees trimmed and maintaining as much tree coverage as we can. In 2022 we identified a disruptor in this dance, the solution came through a partnership with Overstory, a company that uses satellite imagery, infrared technology and artificial intelligence to help utilities manage vegetation and trim trees more efficiently. And the timing could not have been better. Just days after we started working with Overstory in the spring of 2022 the derecho hit Ottawa. Our Ottawa based listeners will remember this storm well. It was monumental in the history of our city, and indeed for us as utility, winds reached 190 kilometers an hour. For our non-metric listeners, that's nearly 120 miles per hour. The storm ripped through poles houses and cause considerable damage to our city's urban forests. Overstory played a crucial role during the cleanup and in helping us level up our vegetation management strategies moving forward, we realized that the insights we got from Overstory would help improve our proactive approach to tree encroachment and hazard identification, and this is essential in this era of extreme weather events. We know that climate change is causing more frequent and more extreme weather events. According to Climate Central, the number of weather related power outages in the United States increased by 78% between 2011 and 2021 and severe weather accounted for over 1000 outages across Nova Scotia just in the year of 2024 we want to keep you connected during these heavy storms, and that's why we're looking to organizations like Overstory. So what does Overstory do to help us keep the lights on? Well, without giving away too much, because we're going to get into the details shortly, Overstory through a detailed analysis of the scans they do of our entire grid, identifies high risk areas, which we can then prioritize and better focus our resources when it comes to vegetation management, this level of monitoring and focus reduces the risk of trees from coming into contact with our poles and disrupting Your connection to the grid, the results speak for themselves. Since partnering with Overstory, we've reduced vegetation related outages by 44% and that's only part of the story, as we'll discuss further, Overstory also plays a crucial role in helping utilities prevent wildfires in high risk areas across North America, similar to extreme weather, wildfire frequency and intensity is also increasing, in part due to climate change expanding cities and many other factors. And when wildfires do happen, these stories are heartbreaking. What many people don't realize is that lots of wildfires are sparked by trees making contact with power lines, and that is why Overstory plays a key role in tagging areas where those fires are most likely to ignite and spread, making it easier for utilities to prioritize trimming work and vegetation management in those areas. To dive more into how Overstory is helping us here at Hydro Ottawa and. And other utilities helping us identify and act to mitigate risk associated with vegetation. I'm really excited to have Lynn Petesch on the show today. Lynn is Overstory's, Head of Customer Success, and has spent the past 10 years building customer facing teams with a specific focus on technologies that tackle the climate crisis. She began her career working for the United Nations and the diplomatic service of her home country, Luxembourg, before moving into the tech sector to really work in environments where she could drive impact more quickly and at greater scale. Lynn Petesch, welcome to the show.

Lynn Petesch 05:34

Thank you. Thanks for having me.

Trevor Freeman 05:36

Okay, so let's start at the very top with a high level look at what Overstory does and how the organization came to be.

Lynn Petesch 05:45

Yeah, let me tell you about Overstory. I mean, we are a vegetation intelligence platform. We use remote sensing and AI to give electric utilities, including Hydro Ottawa and others, a clear, system wide view of their risk. They always do it because they want to address three things, or sometimes more, but kind of, there's always a few goal posts, and it's either improving reliability, reducing wildfire risk, if that is if they're in an area where there is a concern, and or improving operational efficiencies. So Overstory very much becomes a decision-making tool for their programs were used mostly by the vegetation management people, operations people, wildfire mitigation teams, and they each time they want to either use a program that exists, prioritize it, reshape their work. They might be preparing for storm. They might be working on a wildfire mitigation risk so the company, more broadly, was founded in 2018 by Anniek Schouten and Indra den Bakker. This was back in the Netherlands, and they were leveraging, or getting really interested in satellite imagery, and were very initially using it for deforestation purposes. So, the climate resilience DNA has always been with us. But like any startup, we were looking at that kind of target audience that was most interested in what we had to offer. And pretty quickly, we landed on the electric utilities. They had the most pressing need to use remote sensing at scale to solve very big problems, honestly. And so we pivoted into that space of electric utilities, and then in 2020 Fiona Spruill, who's our CEO right now, she joined us. She shaped the company into what it is today, and that is really around building safer and more reliable operations.

Trevor Freeman 07:33

That's great, and I want to dive into some of the details. Our listeners will know that we talk a lot about grid modernization here and talk a lot about better intelligence of what's happening on the grid in all aspects, and something we haven't really talked about, and I'm excited to talk to you about today is the sort of vegetation management side of it. So really excited to get into the details. But before we do that, I'm always really curious to understand, you know, the people behind the conversations. How did you get into this area of, you know, high tech vegetation management? I touched a little bit on your bio in the intro, but give us a sense of, you know, how did Lynn come to be in the space that you're in right now?

Lynn Petesch 08:12

Yeah, I wouldn't say I grew up thinking I was going to work in this space, but I love working in it now. So actually, right out of college, I went to work for the United Nations, but then in the last 15 years, I started working at high growth tech companies, startups, and I've always been focused on leading and building CS operations, which is basically the customer success teams. They're the ones that are in front of the customers, implementing these software programs, kind of working very closely with customer solving problems. And about four years ago, I decided that I did want to focus the rest of my career on solving the climate crisis more broadly. And I remember very clearly that I came across Overstory. And there was two things that really resonated with me. One was hearing that utility caused wildfires could be as thing of the past, like they are preventable. And the other thing was learning about this world where vegetation is the biggest cause of outages, which is, you know, I did not know before. And so I think, you know, having these very clear goals is very compelling to kind of work on something where it's so easy to understand what the big problems are. So I joined Overstory, and for the last couple of years, I've been building a team that gets really deeply embedded in these utilities, specifically with the vegetation management and the WiFi mitigation teams. And we work on their programs. We understand their programs, we help them reshape their programs. We roll out, obviously, the software element that is Overstory. It's been very fun and rewarding work

Trevor Freeman 09:40

That's great. And I really love, you know, talking to people from a variety of areas that they touch on climate change and the climate crisis. And I think there's a bunch of us who share that passion of wanting to do something. I spoke with a group of you know, recent grads about what is a green. In career. What is it? What does a career in climate change look like? And really it looks like whatever you want it to look like. There are so many aspects that touch on this. So kind of neat to hear how that was your passion, and then you figured out where it made sense for you to enter into the climate sphere. So that's great.

Lynn Petesch 10:15

Yeah, I guess when I was young, I thought you had to be a scientist to work on time, yeah. And I think now anyone can find an angle on how to contribute to it. And I think it needs everyone to help contribute.

Trevor Freeman 10:24

Yeah, any job can be a green job if you care about it and if you make it that okay. So let's get back to Overstory. Tell us a little bit about the evolution of the company. You talked about it kind of founding about seven years ago. Tell us how it's evolved and progressed over those seven years.

Lynn Petesch 10:41

Yeah, so when we started working with utilities, I think at that point, everyone was kind of assessing whether satellites could be kind of good use case for analyzing vegetation. We're now talking about 30 centimeter imagery. So the resolution of satellites has become incredible. You can really see branches. You can detect species of trees. You can see if they're healthy or not. So initially, that was kind of our m-o we really were the leading provider to find out, where are the trees, how close are they, in terms of proximity to your network, so to the conductor, which is the risk. You know, we're looking at the terrain. If you're looking in the mountains and in Colorado, you have very different terrain than maybe in Ottawa. So detecting tree species has been really interesting, detecting the health of trees, how that decline is furthering. A lot of utilities are experiencing a lot of tree decline die off right now. So that was how we started. And then we started working with the really big utilities. And you had to think about this problem at scale. Now, we might be scanning with satellites, hundreds, 10s of 1000s of miles at a time, and some of these utilities, they might have 1000s, if not 10s of 1000s, of trees that could pose a risk to their network. They might have had a really big, large weather event, a storm that knocked over some of their system. So at that point, it all becomes about that decisioning tool. Everything starts becoming a prioritization, and I think that's now where we're really leaning into is making not just surfacing the data, but making it very actionable. Utilities have a lot to deal with. They deal with very tight budgets, they deal with crew constraints. They might have an aging workforce, their regulatory pressure, they're really vulnerable to storms. Increasingly, there's a lot of wildfire exposure. So everything becomes a decision of, where should I focus my intention? Where can I get the biggest bang for my buck? What should I do? What should I not focus on? And that decisioning is where we really want to be a key player in.

Trevor Freeman 12:44

Absolutely. And looking forward, I know I'm kind of we're jumping the gun here. We haven't gotten into the details of what you do. But looking forward, what is your vision for, kind of the future of this space and how it's going to continue to evolve? Are you mature as a company yet, or as a sector, or is it still a lot of growth to happen?

Lynn Petesch 13:01

Yeah, I think vast majority utilities are now leveraging remote sensing. It could be lighter, it could be drones, it could be satellites. So that has become a pretty established tooling within the sector. I think what our vision really is, is providing utilities that shared resilience, first picture of risk. So you know, we imagine a world where you can, kind of like, see the emerging risks, and you can start becoming proactive. Being proactive in the space of vegetation management has been really challenging. You never know where the next tree is going to fall. And over the last couple of years, customers suddenly have access to this risk across their territory so that they can start being proactive about it. As a matter of fact, that was a key use case, also with the team at Hydro Ottawa, is to start launching these proactive programs. And I think when we think about it, we get very excited about the world in which anyone from the field crews to the vegetation managers to the operation folks to the execs, to the regulators, the community partners who think about the safety of their communities, the regulators all have that kind of shared view of risk. Just imagine, they all understand the same risk. They operate off the same sheet, and they make the same data driven decisions that could solve a lot of problems, because now the data is often scrambled across different people. Certain people have access to it and certain people don't.

Trevor Freeman 14:25

Great. Okay, so let's get into the specifics here. I want to actually talk about specifically what you what Overstory does. How do you find we've kind of talked about vegetation management, obviously, you're supportingHydro Ottawa and other utilities in our vegetation management programs. How do you find and tag high risk vegetation? What is high risk like? What do you actually do on a day to day basis?

Lynn Petesch 14:47

Yeah, that's the part that I deal with the most often. So excited to get into specifics. Implementing with Overstory is actually pretty easy. I mean, when we start working with a customer, we need to know where is your grid. So we need to understand where your power lines are. Planning. We need to understand the main configurations of them. How tall are the poles, etc, so we can really compute that whole focus of where the trees in relation to your power lines, to your conductors. That's all ultimately that we're focusing on. Increasingly, we're all seeing focusing on the ground. I'll be talking about that as well. We then task these satellites over your territory. We do that during the leaf on season, so that will be the summer, essentially. And then we run all these models. So we are first needing to understand, where are the trees, what is their height, what is their health? An unhealthy tree is much more likely to fall and cause damage to your power lines. We're looking at the fuels on the ground. We can help you determine what type of equipment you might need to attack certain types of vegetation. And we always compute it to that risk to the conductor. And we look at your right of ways. Now, I think the interesting part about your question is the what is high risk? And that is, can be very different across different utilities, and I think that's the maybe the unique part with Overstory is that we can configure it to your standards. So every utility has very unique components. If you're on the West Coast and you're concerned about wildfires, your tolerance to risk will be very different. And if you're on the East Coast, where you're mostly concerned about not causing too many outages, including that you might have specific trimming specifications. The crews running around with chainsaws, they know exactly how far out they need to trim, how much they can trim, and there's a bit of a risk tolerance thing. So we built very configurable risk frameworks for all of our utility partners, so high means one thing to hydro Ottawa means something different to a customer in California that is facing a very different type of risk.

Trevor Freeman 16:49

So you're out there assessing, essentially, just for the context of our listeners, you know, we've got power lines that run overhead. They run through residential neighborhoods, commercial areas, but also forested areas, treed areas where there's lots of vegetation near our equipment, your company really gets an understanding of the the interaction between the vegetation and our lines, and says, these ones are too close, or this is a tree that's, you know, not healthy, and could come in contact with your lines based on your analysis. So help us, like, let's paint that picture a little bit more detailed. How do utility companies take the information that you are coming up with, that your analysis is coming up with, and use that to run a vegetation management program more effectively? What does the utility do with that information?

Lynn Petesch 17:37

Yeah, so we always center it around four main use cases. One is optimizing a program that already exists. It's creating a targeted program for you. It's quantifying your work and risk reporting. And I'll dive into each and every one of them a little bit to illustrate a bit more what that could mean. So when we think about program optimization, a lot of utilities, they have existing vegetation management cycle. They might have a regulatory obligation to visit their territory every four years, for example. Now, a lot of times they've been doing their program the same way for the last 10 maybe 20 years, but the conditions in their territory are different, right? I mean, the things we're seeing, the storms are heavier. There's more tree decline that we're seeing right now. So they know they need to adapt and they need to adjust it. But it's big programs with lots of budgets attached to it, a lot of crews running around. So starting to think about how you can start pulling a socket that you're meant to trim forward, or starting to tackle an area where you say, is more residential, there's fewer trees, focusing on your high risk areas. First re managing these programs is one key component that we work with a lot of companies on. And thinking about Oklahoma, Gas and Electric, for example, that they have a budget, and they can only do that much with the budget, and it was really about reinventing where they can get the biggest impact. The other one, the second use case, is this targeted program creation, and I'll use the Hydro Ottawa use case for that. You know, they had suddenly a view about where are all of their hazard trees? Hazard trees are these trees that are declining, they're dying, or they're dead, and they could have an impact on your system. Now, suddenly you know where they are, so you can start building a targeted program about dedicating some time and budget and crews to actually going and addressing those trees that has a big impact on your reliability and on reducing tree cost outages. And there's many others, sort of like hotspotting, is a very common term about starting to become proactive and doing something for a specific program. And the third one is work quantification. And I think there, when you think about it again, there's large contractors that are running around, managing your territory. And now we utilities, for the first time, often have that data to actually assess how much work there is. So that's really helpful in terms of negotiating your contracts, getting better bids. Some utilities say it's really hard to find contractors that want to work on their system, because it's very hard to estimate how much work there is, or they might have a budget to mow certain vegetation along a transmission corridor. Just knowing how much vegetation there is is a really helpful tool to address it and prioritize it in the right way. And then the fourth use case is the risk reporting, and that is about getting that baseline view about your risk and tracking it year over year. And this is really where we want utilities to have that data to report it out to their boards, insurers, regulators, and often it's used to defend your budgets, secure your budgets, or really have some data to kind of back you up on what the problems are that you're facing.

Trevor Freeman 21:05

Great. So you talk about data, and you know, each of those use cases that you mentioned, or strategies that you mentioned really are about getting the right information in the hands of the right people to make decisions and sort of more efficiently and effectively make decisions, but it's a lot of data. And so Hydro Ottawa has over 6000 kilometers of lines. You know, this, of course, as our partner, we have a big territory, and we have a fairly treed territory. That's a lot of data points. You're collecting a lot of data from your satellites. You're doing analysis on that. How are you doing that analysis? Is it, you know, AI is kind of a buzzword, and every sector right now, and the utility sector is no different. Are you using some form of AI or machine learning analytics? What are you doing in terms of, you know, crunching the numbers and coming up with the right actions?

Lynn Petesch 21:59

Totally, yeah, AI is a buzzword, but it's also very exciting. I think utilities have really embraced it already. They're using it for demand forecasting. They're using it for customer service. They're using it for asset planning. I mean, at the core, Overstory has been using AI to turn remote sensing data into operationally useful intelligent about their vegetation. So when you say yes, Hydro Ottawa has that many 1000s of kilometers of overhead lines, we need to a rank it to them. This is your worst circuit. This is your worst area. This is the area where you have the most hazard trees, for example. So we can really rank order on a span level, from the worst to the best, right? So that could be one thing, it's still an overwhelming amount of data. So where we started by using AI to kind of predict that whereas the trees How tall are, they were and they were relation to the conductors. Now what we're really excited about, or kind of leaning into, with AI, is how to intelligently, kind of assess and prioritize risk. So not every hazard tree has the same impact. If a hazard tree falls on a line where more houses are dependent on you will knock out the power of more people. So it's always a prioritization exercise, and leveraging AI for that is what is most exciting to us right now. And I think it's important to note that we also don't just want it to be a black box. All of the models we've built, they're always validated by certified arborists and kind of our utility partners. And I think at this stage, this is very important, because every tree that we find exists in the real world, and so validating this, AI in the with ground truthing, has been really important for us to also build that trust in the technology.

Trevor Freeman 23:42

That's great. And I do think it's helpful for our listeners to kind of understand the context before this, this work is sort of done, you know, in the absence of a tool like yours, it's, it's sort of done. You know, there's a degree of manual effort here. There's a degree of patrolling the lines. There's a cycle of vegetation management. So if you've done a line this year in three years or four years or five years, you want to be looking at it again. This takes a little bit of that, I don't want to call it guesswork, but it takes a little bit of that manual effort out of the equation, and really focuses efforts in the right way. And it's only with the tools that you know you folks are using that you're able to do that volume of analysis and get that pinpoint accuracy. So that's fantastic. Let's, let's get into kind of the success of it at all, like the big picture. We've obviously talked a couple times here that you're our partner here at Hydro Ottawa, so I know that the success that we're having with you, but you know, tell us some of the great success stories with other utility partners. Are you, you know, are you actually reducing weather related outages? Are you seeing the impact of using the overstory tools and methodology to support utility partners?

Lynn Petesch 24:58

Yeah, I mean weather related outages can mean many things. You have trees knocking over, like the pole might crack, etc, you know, those there's a lot of things that can happen during a storm. And I've heard a lot of stories about side of some of the storms that Ottawa has experienced in the past years, where, you know, you could have had anything, and they're just heavier, and that the consequences are really strong, but what we can impact is the tree cost outages, right? And that we've proven with Hydro Ottawa, where, within a year, by focusing that targeted program on going to an area where you had a massive amounts of these trees that were dying off and they at any point, was just a little bit too heavy wind could be toppled over and fall on the line, we had a 44% reduction in tree cost outages. That's a real, tangible number. You can see, I'm thinking about utility as well. In the on the East Coast, a co op that runs through very rural areas. In those areas, you have a trees outside of the right of way that are toppling over on two lines. So tree cost outages are a huge issue for them, and it's really impacting their safety and safety those key, key KPIs that utilities are always tracking and by us just giving them a rank order of which has a tree they had so many of them, which has a tree to even go to first, because if that has a tree were to fall on a line, a ton more people are going to be out of power than if the other one were to fall the line, you will have, like one rural cabin that will not have power. And that led to a reduction of something around 90% of tree cause outages is to 70% it's still a long way to go, but it was a really tangible number that you can see, and it shows that if you then do that proactive work, you have real impact on your tree cost outages. And it's if I think about our customer in California, Pacific Gas and Electric, for example, it's a lot around helping them understand where they don't need to go. So it's kind of doing something of a visual inspection and actually skipping certain spans, that can be itself a really big use case. Because right now, if you don't have an understanding about where your risks are, you might be spending trucks to roll for hours around areas where there is not really any tangible work to be done. So redirecting them to the right areas is where we've seen a lot of success there, and that obviously leads to budget wins, right? You'll be saving a lot of money by doing that. And those are kind of the use cases that we chase and that we kind of help prove the cases on.

Trevor Freeman 27:29

Absolutely, yeah, there's, there's only so many resources you can you can throw at this, and making sure that we prioritize and focus those resources in the right spot is absolutely critical. You were just talking about the West Coast, and you mentioned this earlier. I know wildfires is is an area that is obviously of great interest for your organization. We're fortunate here at Hydro Ottawa, and that we haven't really had to deal with that much. But anybody who's you know following the news knows this is a major problem for us. So how, what is your role in helping those utilities prevent wildfires? Maybe give us, like, a very quick primer on why utilities are a factor when it comes to wildfires first, and then how your organization is supporting that.

Lynn Petesch 28:13

So unfortunately, utility cost wildfires tend to be the most catastrophic wildfires because they're critical infrastructure, and we've obviously seen that happen across the world, in in the US recently, again and again. But utility cost wildfires, as I said at the beginning, are also the actual wildfires that are preventable. So that's really where we're lying to lying into a lot of the forests right now. They've become Tinder boxes. That is obviously because of fire suppression policies? That's because of forest management techniques that have been leveraged in the last couple of 100 years that are slowly changing at different paces? Canada's had some, unfortunately, some really bad fire seasons recently as well. And so where overstory wanted to place itself as a net prevention space to even not add to the point where you have a spark, because there's a lot of tools out there that focus on mitigation and what is, what do you do when you see that first plume of smoke coming up? And so we've landed in kind of really focusing on the prevention side, so that utilities are hopefully in the future, not the ones that spark any of those catastrophic wildfires we've already always been looking at that the vegetation that could touch your conductor, right? That's I've been speaking about that a lot, but now we're really excited for the first time, and we recently announced that we launched a fuel detection model. So that's us looking at the ground fuel conditions, and those are actually usually the key contributors to the spark that spreads the fire. We're now providing that to utilities as a much higher resolution than ever before. For me, it's interesting because I've spent a lot of time looking at trees, and now I'm going into the field and I'm looking at the ground, and it's a new perspective. But yet again, we could just, you know, we don't want to overwhelm our customers. A lot of maps and showing the fuel conditions, necessarily, we can really help them identify those spans where a single failure would have the greatest consequence. So yet again, it's about how to make that data that, you know, there's a lot of wildfire risk map out there, but make it a very actionable list of spans that if they were to tackle those they are very proactively reducing the risk of igniting a fire. And as a result of the protecting their communities.

Trevor Freeman 30:29

Got you so it's not just about the overhead trees, branches, etc, contacting the line. It's, you know, if a switch goes, if an insulator pops, if, if something happens that will cause sparks. What's happening on the ground below that line, and how do we make sure it is able to withstand sparks? That might happen.

Lynn Petesch 30:49

Exactly if you have dry grasses, if you have sagebrush, if you have certain types of fuels, they're just much more likely to spark a fire and then spread, spread out without there even be any any trees you have these prairies along Texas that can blow up in a fire very quickly, and the fires can spread to tremendous sizes. And so understanding the fuels on the ground is really important.

Trevor Freeman 31:15

Super interesting and fascinating work to get involved in. As you mentioned, this is obviously an area of, I don't even know if I call it growing concern anymore, great concern for for the utility industry and all of us. Yeah. So with the technology that's, you know, we talked about AI a little bit ago, it's literally growing before our eyes. It's really evolving fast. Do you see your technology evolving along with it. What's what's kind of next for your organization? You talked about getting into sort of the ground vegetation management. What comes next? How do you see it evolving as AI and tools evolve?

Lynn Petesch 31:52

Yeah, I mean, if we see that the future is where we want to support a grid that is much safer and reliable, as I mentioned, we also want to make it sure it's resilient to the climate and the economic pressures that there are. So our initial focus and our continued focus, and where we have a lot of our expertise has been with vegetation. Now we're starting to look at the ground fuels, then that naturally evolves into looking at the asset vulnerabilities. So you know, the actual polls, and if there's any failures potentially on those as well as further weather exposures, right? It becomes, then about the soil moisture. It comes about the wind speed. It becomes around the rain, precipitation, etc. So there's a myriad of things that we can start looking at and that we want to start looking at in order to get that more holistic view of risk, and go beyond just vegetation right now, where we're investing most heavily in is that wildfire risk. There's also the resolution that we see with satellites right now is at 30 centimeter that may drop down to 15 or 10 centimeters, so the resolution will get higher. There's other sources that we're exploring already flying, sometimes aerial imagery that is at that five to 15 centimeters, then you would really start seeing soon, you can start seeing a leaf on a on a tree. It gets really impressive. There's lighter there's lots of other kind of remote sensing technologies that we're looking to leverage in the future. And then, as a company as well, we're starting to, obviously expand internationally. We started working with utilities in New Zealand that have very similar problems and various regulatory changes. They also have a problem with wildfire risks. So that is, that is another angle that at Overstorey We're chasing right now.

Trevor Freeman 33:35

Yeah, I'm glad you brought up that. You know, understanding of other assets beyond just vegetation, has kind of been running through my head of we talk about, and I think we've talked about it here on the show. If we haven't, I should do an episode on that, like a digital twin, a digital twin of our grid, and really having a good understanding of not just, you know, a line drawn on a map of, Hey, your circuits run this way, but really physically, what's happening out there, and being able to sort of model that interact with it in a digital way, to understand, if we do X, Y and Z, what happens. So the technology that you guys are using to really get good imagery and understanding of what's out there, well, I think what I'm hearing from you is could potentially be leveraged in that next level to understand, what pulls do we have? What health are they in? What you know, what's happening with that conductor? Is it sagging too much? Is it in good health? Like there's, there's all this opportunity that's really fascinating to hear.

Lynn Petesch 34:31

Yeah, already. Now, when we look at transmission corridors, we look at the sag of these lines, and the terrains are also really challenging, something to look at. So there's a lot of factors that need to be taken into account. And that can only expand as we want to look at risk more beyond just the vegetation element.

Trevor Freeman 34:48

Very cool. Well, Lynn, very interesting to hear this. I'm really glad you came on the episode or the show today to talk to us. Fascinating to hear what Overstory have to I know that we're super excited to be. Working with you here at Hydro Ottawa and excited for what comes next. We always end our interviews with a series of questions, so I'm going to dive into those and here we go. What is a book that you've read that you think everyone should read?

Lynn Petesch 35:13

I was thinking about an author more than a book. My favorite author is Jonathan Franzen. If I would recommend one book, it'd probably be Corrections, his most famous one, I believe. But they're like, these chunky, 800-900 page books where you kind of get immersed in these families and you feel like you know them at the end, and they kind of, I think about them for like, months afterwards. They're really good reading, at least for the winter when it's cold and you spend a lot of time inside. So probably Jonathan Franzen books, yeah.

Trevor Freeman 35:41

Yeah, we're we're recording this just before the holidays, and I think we'll be releasing the episode after but winter is such a great time to curl up with a book, and it's awesome to have a good recommendation of a nice thing.

Lynn Petesch 35:53

It'll be called in January.

Trevor Freeman 35:56

Absolutely. So same question, but a movie or a show?

Lynn Petesch 36:00

Yeah, I'm not a big movie buff, but I recently rewatched What's Eating Gilbert Grape, seen it with Johnny Depp and Leonardo DiCaprio, and I always felt like Leonardo DiCaprio should have received an Oscar for that performance back when he was 14. But, yeah, it's a beautiful movie. awesome.

Trevor Freeman 36:20

Awesome yeah, that's a bit of a blast from the past, but you're right. That is a fantastic one. If someone offered you a free round trip flight anywhere in the world, where would go?

Lynn Petesch 36:27

French Polynesia, because it's so far I've never been a friend who went. I'm sure it's very expensive to go there, so it'd be great for someone too. Yeah, no, that's a place I'll go one day.

Trevor Freeman 36:41

So, yeah, fantastic. Who is someone that you admire?

Lynn Petesch 36:45

Yeah, that's a it's a tricky one, because I was thinking about, like, people, you know, in, I know, family, etc. But like, if I were to think about a, and it's a little left field, about a public persona, and also a bit of a blast from the past, I'll think about Tina Turner. She's been my icon since I'm a kid, I was always listening with my dad to Tina Turner. And I think the word that I've probably most used in today's episode was like resilience. And I always think about her as like possibly the most resilient woman in the world who reinvented herself and her career in her 40s and 50s, and is this complete power woman, you know, always done everything at her own terms. So get so much energy from not just her music. I've seen so many documentaries about her, and she's always been this kind of woman that I know, filthy with energy and kind of like drive. So I'm a big, big fan of Tina Turner.

Trevor Freeman 37:38

That's fantastic. I have to say, that's never come up on the show before, and now I need to go and dive down a rabbit hole of like, learning about Tina Turner listening to some music.

Lynn Petesch 37:47

Yeah, she's great woman.

Trevor Freeman 37:48

Yeah, good answer. Last question, what's something about the energy sector, or let's expand that to kind of the climate sector that you're really excited about?

Lynn Petesch 37:59

Yeah, I'm gonna take a very high level. But I think the thing I've always been following the most is, like, that broad topic of the energy transition, and I think the recent changes, or like, kind of the way we talk about it, has become a lot more interesting, because it used to be this kind of fluffy, big kind of vision, and now we're in that phase where it just has to be very practically implemented, and we're trudging along with it, no matter the political climate, etc, there is kind of a move forward. And I actually really liked the way that, I think, when I first started learning about it, or getting interested in it, it was always about renewables, and now it's around just sort of like needing to build a system that is both, like low carbon and climate resilient. And there's something in that, like way we talk about it now that I find really interesting. There's immense amounts of innovation in it. So yeah, I'm just enjoying following what's happening on that and how we are. We're moving that direction, no matter what's happening right now. So that's exciting.

Trevor Freeman 38:55

Yeah, okay, when I know my listeners are probably roll their eyes, because I say this all the time, but it's a very exciting time to be in this industry, and very exciting to kind of see the evolution of energy and how we're interacting with it, how it's impacting our society. And we really feels like we're at an inflection point. And very great to have you working on one aspect of it that people probably don't think about a lot. So thanks very much for what you're doing.

Lynn Petesch 39:19

Yeah, exactly. When you start working for Overstory, the one thing that happens is, wherever you go, you see trees and power lines. And I have very keen eye for, unfortunately, trees that are in poor health right now. So that's one of the professional things I've developed.

Trevor Freeman 39:35

Carry like a spool of red ribbon around you can, like, tie on the at risk trees and just so someone could come along. Lynn, thanks so much for coming on the show today. Really appreciate it. It's been great chatting with you.

Lynn Petesch 39:45

Thank you so much.

Trevor Freeman 39:46

Take care. Thanks for tuning in to another episode of the thinkenergy podcast. Don't forget to subscribe. Wherever you listen to podcasts, and it would be great if you could leave us a review. It really helps to spread the word. As always, we would love to hear. From you, whether it's feedback comments or an idea for a show or a guest, you can always reach us at thinkenergy@hydroottawa.com..