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  • Empowering power: how AI impacts energy systems
    Greg Lindsay is an urban tech expert and a Senior Fellow at MIT. He’s also a two-time Jeopardy champion and the only human to go undefeated against IBM’s Watson. Greg joins thinkenergy to talk about how artificial intelligence (AI) is reshaping how we manage, consume, and produce energy—from personal devices to provincial grids. He also explores its rapid growth and the rising energy demand from AI itself. Listen in to learn how AI impacts our energy systems and what it means individually and industry-wide. Related links ●     Greg Lindsay website: https://greglindsay.org/ ●     Greg Lindsay on LinkedIn: https://www.linkedin.com/in/greg-lindsay-8b16952/ ●     International Energy Agency (IEA): https://www.iea.org/ ●     Trevor Freeman on LinkedIn: https://www.linkedin.com/in/trevor-freeman-p-eng-cem-leed-ap-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
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  • Reimagining heating and cooling with district energy systems
    Scott Demark, President and CEO of Zibi Community Utility, joins thinkenergy to discuss how our relationship with energy is changing. With two decades of expertise in clean energy and sustainable development, Scott suggests reimagining traditional energy applications for heating and cooling. He shares how strategic energy distribution can transform urban environments, specifically how district energy systems optimize energy flow between buildings for a greener future. Listen in.   Related links   Scott Demark on LinkedIn: https://www.linkedin.com/in/scott-demark-83640473/ Zibi Community Utility: https://zibi.ca/ Markham District Energy Inc: https://www.markhamdistrictenergy.com/ One Planet Living: https://www.bioregional.com/one-planet-living Trevor Freeman on LinkedIn: https://www.linkedin.com/in/trevor-freeman-p-eng-cem-leed-ap-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 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 Transcript: Trevor Freeman  00:07 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 [email protected]   Speaker 1  00:29 Hi everyone. Welcome back. One of the overarching aspects of the energy transition that we have talked about several times on this show is the need to change our relationship with energy, to rethink the standard way of doing things when it comes to heating and cooling and transportation, etc. This change is being driven by our need to decarbonize and by the ongoing evolution and improvement of technology. More things are becoming available to us as technology improves on the decarbonization front, we know that electrification, which is switching from fossil fuel combustions to electricity for things like space and water heating vehicles, etc, is one of the most effective strategies. But in order to switch out all the end uses to an electric option, so swapping out furnaces and boilers for heat pumps or electric boilers, switching all gas cars to EVs, etc. In order to do that in a way that is affordable and efficient and can be supported by our electricity grid, we need to think about multi strategy approaches, so we can't just continue to have this one way power grid where every home, every business, every warehouse or office tower satisfies all of its energy needs all the time directly from the grid with no adaptability. That isn't the best approach. It's not going to be affordable or efficient. We're not going to be able to do it fast enough. The multi strategy approach takes into account things like distributed energy resources, so solar and storage, etc, which we've talked about many times on this show, but it also includes approaches like district energy. So, district energy is rethinking how energy flows between adjacent buildings, looking for opportunities to capture excess energy or heat from one source and use that to support another. And that is the focus of today's conversation. To help us dive into this topic, I'm really happy to welcome Scott Demark to the show. Scott has been a champion of sustainability, clean energy solutions and energy efficiency in the Ottawa real estate and development industry for over 20 years now, he has overseen many high-performance development projects and was one of the driving forces behind the Zibi development in downtown Ottawa, and most applicable for today's conversation the renewable district energy system that provides heating and cooling to the Zibi site. Scott is the president and CEO of the Zibi community utility, as well as a partner at Thea partners. Scott Demark, welcome to the show.   Scott Demark  03:15 Thanks. Nice to see you. Trevor,   Trevor Freeman  03:17 So, Scott, why don't we start with definitions are always a good place to start. So, when we talk about a district energy system, give us a high-level overview of what exactly that means.   Scott Demark  03:27 Sure, a district energy system is, is simply the connection, or interconnection of thermal energy sources, thermal energy sinks. And so really, in practical terms. It means, instead of buildings having their own furnace and cooling system, buildings connect to a hydronic loop. A hydronic loop is just pipes filled with water, and then the heat or the cooling is made somewhere else, and that heat or lack of heat cooling is in a pipe. They push the pipe to the building, and then the pipe extracts the heat or rejects the heat to that loop. And so it's simply an interconnection of us as sources and sinks for federal energy.   Trevor Freeman  04:14 And I guess one of the important concepts here is that buildings often create heat, not just through a furnace or not just through the things that are meant to create heat, but, you know, server racks, computer server racks, generate a lot of heat, and that heat has to go somewhere. So oftentimes we're cooling buildings to remove heat that's being created in those buildings, and then other buildings nearby need to be heated in order to make that space comfortable. Is that fair to say?   Scott Demark  04:42 Yeah, absolutely. Trevor, so, an office building in the city of Ottawa, big old government office building, you'll see a pretty big plume on the roof in the winter time. That's not just kind of the flue gas from a boiler, but rather it is actually chillers are. running inside to make cooling, and they're just selling that heat to the atmosphere, even on the coldest day of the year. So, it's people, you know, people are thermal load. Computers are thermal load, and so is solar gain. You know, January is pretty dark period for us, meaning low angle sun. But by this time in a year, you know, or at the end of February, there's a lot of heat in that sun. So, a glass building absorbs a lot of sun. An office building will need cooling on the sunny side of that building a lot of the time, even in the dead of winter.   Trevor Freeman  05:31 Yeah. So, a district system, then, is taking advantage of the fact that heat exists, and we don't necessarily need to either burn fossil fuels or even if it's a, you know, a clean system, we don't have to expend energy to create heat, or create as much heat if we could move that heat around from where it's kind of naturally occurring to where we need it.   Scott Demark  05:54 That's right at the very core of a district energy system. You're going to move heat from a place that it's not wanted to a place that it is wanted. And so in our example of the office building, you know, on the February day with the sun shining in and the computers all running, that building's getting rid of heat. But right next door, say there's a 20-story condo. Well, that 20 story condo needs heating and it also needs domestic hot water. So, year-round, domestic hot water represents 30, 35% of the heating load of any residential building, so at all times. So, a district energy system allows you to take that heat away from the office building and give it to the residential building, instead of making the heat and dissipating that heat to the atmosphere in the office building. So, yeah, it's, it's really a way to move, you know, from sources to sinks. That's, that's what a district energy system does well.   Trevor Freeman  06:48 So we've kind of touched on this a little bit, but let's dive right into, you know, we talk a lot on the show about the energy transition. This, this push to, one, move away from fossil fuel combustion to meet our energy needs. And two, shifting from a kind of static, centralized energy system like we have right now, big generators, large transmission lines, etc., to more of a two-way flow, distributed energy system. What is the role of district energy systems within that transition. How do they help us get closer to that sort of reality that we talk about?   Scott Demark  07:27 I think the biggest way that they help is economies of scale. Okay, so by that, I'll explain that. Imagine there's a lot of technology that's been around a long time that is very scalable to the building level, but most of them are fossil fire. Okay, so the cheapest way to heat a building in Ottawa is to put a gas fired boiler in. That's the cheapest capital cost, first cost, and it's also the cheapest operating cost, is to put a gas boiler in. That industry is well established. There's lots of trades who could do it. There's lots of producers who make the boilers. When you start to try and think about the energy transition and think about what you may do to be different, to be lower carbon, or to be zero carbon, those industries are just starting right. Those industries don't exist. They don't have the same depth, and so they don't have the same cost structure, and often times they don't scale well down to the building. And therefore, a district energy system aggregates a bunch of load, and so you can provide a thermal energy so at scale that becomes affordable. And that is, you know, a very good example of that would be where, you know, you might want to go and recover heat from some process, and we'll talk about Zibi as the example. But if he wanted to go recover heat from some process and bring it in, it doesn't make sense to run a pipeline to a source to heat one building. You can't make financial sense of it, but if you're heating 20 buildings, that pipeline, all of a sudden, makes sense to take waste heat from somewhere, to move it somewhere else. The other advantage is that truly district energy systems are agnostic to their inputs and outputs for heat. So, once you've established that hydronic loop, that interconnection of water pipes between buildings, what the source and what the sources, doesn't matter. So, you may have at one point built a district energy system, and Markham District Energy System is a great example of this market District Energy System was built on the concept of using a co-generation facility. So they burned natural gas to make electricity, they sold electricity to the grid, and they captured all the waste heat from that generation, and they fed it into a district energy system. Well, here we are, 20 plus years later, and, they're going to replace that system, that fossil fired system Augment, not fully replaced, but mostly replace that system with a sewer coupled energy recovery and drive those heat recovery chillers to a sewer system. So, they're putting a very green solution in place of a former fossil solution. They don't have to rip up the pipes, they don't have to change anything in the buildings. They only have to change that central concept. Now, again, Markham could never do that at a one building scale. They're only that at the community scale.   Trevor Freeman  10:21 So, you mentioned, I want to pick on something you said there. You talked about a sewer heat energy system. They're pulling heat from the sewer. Just help our listeners understand high level kind of, why is there heat there for us to pull? Like, what's the what's the source there?   Scott Demark  10:38 Yeah. So, when we shower, when we flush toilets, all of that is introducing heat into a sewer system. So, we're collecting heat from everybody's house into the sewer system. The sewer system also sits below the frost line. So, call it Earth coupled. You know it's the earth in Ottawa below the frost line sits around eight, eight and a half c and so at that temperature and the temperature of flushing toilets, we essentially get a sewer temperature in the on the coldest day of the year, that's around 10 10, and a half degree Celsius. And obviously, for lots of the year, it's much warmer than that. And so I think, you know, a lot of people are kind of familiar with the concept of geo exchange energy, or that. Lot of people call it geothermal, but you exchange where you might drill down into the earth, and you're taking advantage of that eight, eight and a half degrees, I'll see. So, you're exchanging heat, you can reject heat to the earth, or you can absorb heat from the earth. Well, this is the same idea, but you accept or reject from the sewer. But because the sewer is relatively shallow, it is cheaper to access that energy, and because it's warm, and on the coldest day, a couple of degrees make a big difference, Trevor, and most of the year so much warmer, you're really in a very good position to extract that heat, and that's all it is. You are just accepting or rejecting heat. You don't use the sewage itself. It doesn't come into your building. You have a heat exchanger in between. But that's, that's what you do.   Trevor Freeman  12:10 Yeah, great. And I, we've talked before on the show about the idea that, you know, for a air source, heat pump, for example, you don't need a lot of heat energy to extract energy from the air. It can be cold outside, and there is still heat energy in the air that you can pull and use that to heat a building, heat water, whatever. So same concept, except you've got a much warmer source of energy, I guess.   Scott Demark  12:34 Yeah, exactly. And you know, Trevor, when you look at the efficiency curves of those air source heat pumps, you know, they kind of drop off a cliff at minus 20. Minus 22 in fact. You know, five or six years ago, they that that was dropping off at minus 10. So, we've come a long way in air source heat pumps. But imagine on that coldest, coldest day of the year, you're still your source is well above zero, and therefore your efficiency. So, the amount of electricity you need to put into the heat pump to get out the heat that you need is much lower, so it's a way more efficient heat exchange.   Trevor Freeman  13:07 Great. Thanks for that, Scott. I know that's a bit of a tangent here, but always cool to talk about different ways that we're coming up with to heat our buildings. So back to district energy. We've talked through some of the benefits of the system. If I'm a building owner and I'm have the decision to connect to a system that's there, or have my own standalone, you know, traditional boiler, whatever the case may be, or even in a clean energy one, a heat pump, whatever. What are the benefits of being on a district system versus having my own standalone system for just my building.   Scott Demark  13:42 Yeah, so when you're wearing the developer’s hat, you know they're really looking at it financially. If they have other goals around sustainability, great, that will factor into it. But most of them are making decisions around this financially. So, it needs to compete with that. That first cost that we talked about the easiest ways, is boilers, gas fired boilers is the cheapest way. And so, they're going to look to see it at how. How does this compare to that? And so, I think that's the best way to frame it for you. And so, the difference here is that you need to install in your building a cooling system and a heating system. In Ottawa, that cooling system is only used for a few months a year, and it's very expensive. It takes up space, whether you're using a chiller and a cooling tower on the roof or using a dry cooler, it takes up roof space, and it also takes up interior space. If you do have a cooling tower, you have a lot of maintenance for that. You need to turn it on and turn it off in the spring, on and fall, etc., just to make sure all that happens and you need to carry the life cycle of that boiler plant. You need to bring gas infrastructure into your building. You generally need to put that gas boiler plant high in your building. So up near the top, and that's for purposes of venting that properly. Now that's taking real estate, right? And it's taking real estate on the area that's kind of most advantageous, worth the most money. So you might lose a penthouse to have a boiler and chiller room up there. And you also, of course, lose roof space. And today, we really do try to take advantage of those rooftop, patios and things, amenities are pretty important in buildings. And so, when I compare that to district energy at the p1 level, p2 level in your building, you're going to have a small room, and I really do mean small where the energy transfer takes place, you'll have some heat exchangers. And small, you might have a space, you know, 10 or 12 feet by 15 to 18 feet would be big enough for a 30-story tower, so a small room where you do the heat exchange and then Trevor, you don't have anything in your building for plants that you would normally look after. So, when you look at the pro forma for owning your building over the lifetime of it. You don't have to maintain boilers. You don't have to have boiler insurance. You don't have to maintain your chillers. You don't have to have life cycle replacement on any of these products. You don't need anybody operating those checking in on the pressure vessels. None of that has to happen. All of that happens on the district energy system. So, you're really taking something you own and operate, and replacing that with a service. So, district energy is a service, and what, what we promised to deliver is the heating you need and the cooling you need. 24/7. The second thing you get is more resilience, and I'll explain that a little bit. Is that in a in a normal building, if you if the engineers looked at it and said, you need two boilers to keep your building warm, then you're probably going to install three. And that is kind of this, and plus one sort of idea, so that if one boiler goes down, you have a spare. And you need to maintain those. You need to pay for that. You need to maintain those, etc. But in district energy system, all that redundancy is done in the background. It's done by us, and we have significantly more redundancy than just n plus one in this example. But overall, you know, if you have 10 buildings on your district energy system, each of those would have had n plus one. We don't have n plus 10 in the plant. And so overall, the cost is lower, I would say, if you look at it globally, except the advantages you do have better than N plus one in the plant. So, we have higher resiliency at a lower cost.   Trevor Freeman  17:39 So, we know there's no such thing as a miracle solution that works in all cases. What are the best use cases for district energy system? Where does it make a lot of sense?   Scott Demark  17:50 Yeah, in terms some, in some ways the easiest things, Pretty work. Doesn't make sense. So, so it doesn't make sense in sprawling low rise development. So, the cost of that hydronic loop those water pipes is high. They have to fit in the roadway. It's civil work, etc. And so, you do need density. That doesn't mean it has to be high rise density.  You know, if you look at Paris, France, six stories district energy, no problem. There's, there's lots and lots of customers for that scale of building. It doesn't have to be all high rise, but it does, District Energy does not lend itself well to our sprawling style of development. It's much more suited to a downtown setting. It also kind of thrives where there's mixed use. You know, I think the first example we were talking about is office building shedding heat, residential building needing heat. You know, couple that with an industrial building shedding heat. You know, these various uses, a variety of uses on a district energy system, is the best, because its biggest advantage is sharing energy, not making energy. And so, a disparity of uses is the best place to use that. I think the other, the other thing to think about, and this is harder in Canada than the rest of the world, is that, you know, it's harder on a retrofit basis, from a cost perspective, than it is in a in a new community where you can put this in as infrastructure. Day one, you're going to make a big difference. And I'll, you know, give a shout out to British Columbia in the Greater Vancouver area. So, the district, you know, down in the Lower Mainland, they, they kind of made this observation and understood that if they were going to electrify, then District Energy gave economies of scale to electrify that load. And they do a variety of things, but one of the things they do is, is kind of district you exchange system so, so big heat pumps coupled to big fields, and then spring heat made a bunch of buildings. But these are green field developments Trevor. So, as they expand their suburbs. They do need to build the six stories. They very much have kind of density around parks concept. So now Park becomes a geo field. Density around the geo field, but this infrastructure is going in the same time as the water pipes. It's going in at the same time as the roads, the sidewalks, etc. You can dramatically reduce your cost, your first cost related to that hydro loop, if you're putting it in the same time you're doing the rest of the services.   Trevor Freeman  20:27 So, we're not likely to see, you know, residential neighborhoods with single family homes or multi-unit homes, whatever, take advantage of this. But that sort of low rise, mid rise, that's going to be more of a good pick for this. And like you said, kind of development is the time to do this. You mentioned other parts of the world. So, district energy systems aren't exactly widespread. In Canada, we're starting to see more of them pop up. What about the rest of the world? Are there places in the world where we see a lot more of this, and they've been doing this for a long time?   Scott Demark  21:00 Yeah. So, I'd almost say every, everywhere in the northern hemisphere, except North America, has done much more of this. And, you know, we really look to kind of Scandinavia as the gold standard of this. You look to Sweden, you look to Denmark, you look to Germany, even. There's, there's a lot of great examples of this, and they are typically government owned. So, they are often public private partnerships, but they would be various levels of government. So, you know, if you, if you went to Copenhagen, you'd see that the municipality is an owner. But then their equivalent of a province or territory is actually a big part of it, too. And when they built their infrastructure ages ago, they did not have an easy source of fossil fuels, right? And so, they need to think about, how can we do this? How can we share heat? How can we centralize the recovery of heat? How can we make sure we don't waste any and this has just been ingrained in them. So there's massive, massive District Energy loops, interconnecting loops, some owned by municipalities. Someone probably, if you build the factory, part of the concept of your factory, part of the pro forma of your factory is, how much can I sell my waste heat for? And so, a factory district might have a sear of industrial partners who own a district energy loop and interfaces with the municipal loop all sort of sharing energy and dumping it in. And so that's, you know, that's what you would study. That's, that's where we would want to be, and the heart of it is, just as I said, we've really had, you know, cheap or, you know, really cheap fossil fuels. We've had no price on pollution. And therefore, it really hasn't needed to happen here. And we're starting to see the need for that to happen here.   Trevor Freeman  22:58 It's an interesting concept to think of, you know, bringing that factory example in, instead of waste heat or heat as a byproduct of your process being a problem that you need to deal with, something you have to figure out a way to get rid of. It becomes almost an asset. It's a it's a, you know, convenient commodity that's being produced regardless, that you can now look to sell and monetize?   Scott Demark  23:21 Yeah, you go back to the idea of, like, what are the big benefits of district energy? Is that, like, if that loop exists and somebody knows that one of the things the factory produces is heat, well, that's a commodity I produce, and I can, I can sell it, if I have a way to sell it right here. You know, we're going to dissipate it to a river. We may dissipate it to the atmosphere. We're going to get rid of it. Like you said, it's, it's, it's waste in their minds and in Europe, that is absolutely not waste.   Trevor Freeman  23:49 And it coming back to that, you know, question of, where does this make sense? You talked about mixed use. And it's also like the, you know, the temporal mix use of someone that is producing a lot of heat during the day when the next-door residential building is empty, then when they switch, when the factory closes and the shift is over and everybody comes home from work, that's when that building needs heat. That's when they want to be then taking that heat to buildings next to each other that both need heat at the same time is not as good a use cases when it's offset like that.   Scott Demark  24:23 Yeah, that's true. And unless lots of District Energy Systems consider kind of surges in storage, I know our system at CB has, has kind of a small storage system related to the domestic hot water peak load. However, you can also think of the kilometers and kilometers and kilometers of pipes full of water as a thermal battery, right? So, so you actually are able to even out those surges. You let the temperature; the district energy system rise. When that factory is giving all out all kinds of heat, it's rising even above the temperature. You have to deliver it at, and then when that peak comes, you can draw down that temperature and let the whole district energy system normalize to its temperature again. So you do have an innate battery in the in the water volume that sits in the district energy system   Trevor Freeman  25:15 Very cool. So you've mentioned Zibi a couple times, and I do want to get into that as much as we're talking about other parts of the world, you know, having longer term district energy systems. Zibi, community utility is a great example, right here in Ottawa, where you and I are both based of a district energy system. Before we get into that, can you, just for our listeners that are not familiar with Zibi, give us a high level overview of what that community is its location, you know, the goals of the community. And then we'll talk about the energy side of things.   Scott Demark  25:46 Sure. So Zibi was formerly Domtar paper mills. It's 34 acres, and it is in downtown Ottawa and downtown Gatineau. About a third of the land mass is islands on the Ontario side, and two thirds the land mass is on the shore, the north shore of the Ottawa River in Gatineau, both downtown, literally in the shadows of Parliament. It is right downtown. It was industrial for almost 200 years. Those paper mills shut down in the 90s and the early 2000s and my partners and I pursued that to turn it from kind of this industrial wasteland, walled off, fenced off, area that no one could go into, what we're hoping will be kind of the world's most Sustainable Urban Community, and so at build out, it will house, you know, about six, 7000 people. It will be four and a half million square feet, 4.24 point 4 million square feet of development. It is master planned and approved, and has built about, I think we're, at 1.1 million square feet, so we're about quarter built out. Now. 10 buildings are done and connected to the district energy system there. And really, it's, it's an attempt to sort of recover land that was really quite destroyed. You can imagine it was a pretty polluted site. So, the giant remediation plan, big infrastructure plan. We modeled this, this overall sustainability concept, over a program called one planet living which has 10 principles of sustainability. So, you know, you and I are talking a lot about carbon today, but there's also very important aspects about affordability and social sustainability and lifestyle, and all of those are incorporated into the one planet program, and encourage people to look up one planet living and understand what it is and look at the commitments that we've made at Zibi to create a sustainable place. We issue a report every year, kind of our own report card that's reviewed by a third party that explains where we are on our on our mission to achieve our goal of the world's most sustainable community.   Speaker 1  28:09 Yeah. And so I do encourage people to look at one planet living also. Have a look at, you know, the Zibi website, and it's got the Master Plan and the vision of what that community will be. And I've been down there, it's already kind of coming along. It's amazing. It's amazing to see the progress compared to who I think you described it well, like a bit of an industrial wasteland at the heart of one of the most beautiful spots in the city. It was really a shame what it used to be. And it's great to see kind of the vision of what it can become. So that's awesome,   Scott Demark  28:38 Yeah, and Trevor, especially now that the parks are coming along. You know, we worked really closely with the NCC to integrate the shoreline of Zibi to the existing, you know, bike path networks and everything. And, you know, two of the three shoreline parks are now completed and open to the public and they're stunning. And you know, so many Ottawa people have not been down there because it's not a place you think about, but it's one of the few places in Ottawa and Gatineau where you can touch the water, you know, like it's, it's, it's stunning,   Trevor Freeman  29:08 yeah, very, very cool. Okay, so the next part of that, of course, is energy. And so there is a district energy system, one of the first kind of, or the most recent big energy, District Energy Systems in Ottawa. Tell us a little bit about how you are moving energy and heating the Zibi site.   Scott Demark  29:29 Yeah. So first, I'll say, you know, we, we, we studied different, uh, ways to get to net zero. You know, we had, we had a goal of being a zero carbon community. There are low carbon examples, but a zero carbon community is quite a stretch. And even when you look at the Scandinavian examples, the best examples, they're missing their energy goals, largely because some of the inputs that are District Energy System remain false so, but also because they have trouble getting them. Performance out of the buildings. And so we looked at this. We also know from our experience that getting to zero carbon at the building scale in Ottawa is very, very difficult. Our climate is tough, super humid, super hot. Summer, very cold, very dry, winter, long winter. So, it's difficult at the building scale. It's funny Trevor, because you'd actually have an easier time getting to zero carbon or a passive house standard in affordable housing than you do at market housing. And that's because affordable housing has a long list of people who want to move in and pay rents. You can get some subsidies for capital and the people who are willing to pay rent are good with smaller windows, thicker walls, smaller units and passthroughs, needs all those kinds of things. So when down at Zibi, you're really selling views, you're competing with people on the outside of Zibi, you're building almost all glass buildings. And so it's really difficult to find a way to get to zero carbon on the building scale. So that moved us to district energy for all the reasons we've talked about today already. And so, when we looked at it for Zibi, you really look at the ingredients you have. One of the great things we have is we're split over the border. It's also a curse, but split over the border is really interesting, because you cannot move electricity over that border, but you can move thermal energy over that border. And so, for us, in thinking about electrifying thermal energy, we realized that if we did the work in Quebec, where there is clean and affordable electricity, we could we could turn that into heat, and then we could move heat to Ontario. We could move chilled water to Ontario. So that's kind of ingredient, one that we had going for us there. The second is that there used to be three mills. So originally Domtar three mills, they sold one mill. It changed hands a few times, but it now belongs to Kruger. They make tissue there so absorbent things, Kleenexes and toilet paper, absorbent, anything in that tissue process that's a going concern. So, you can see that in our skyline. You can see, on cold days, big plumes of waste heat coming out of it. And so, we really saw that as our source, really identified that as our source. And how could we do that? So, going back to the economies of scale, is, could we send a pipeline from Kruger, about a kilometer away, to Zibi? And so, when we were purchasing the land, we were looking at all the interconnections of how the plants used to be realized. There are some old pipelines, some old easements, servitudes, etc. And so, when we bought the land, we actually bought all of those servitudes to including a pipeline across the bridge, Canadian energy regulator licensed across the bridge into Ontario. And so, we mixed all these ingredients up, you know, in a pot, and came up with our overall scheme. And so that overall scheme is relatively simple. We built an energy recovery station at Kruger, where just before their effluent water, like when they're finished in their process, goes back to the river. We have a heat exchanger there. We extract heat. We push that heat in a pipe network over to Zibi. At Zibi, we can upgrade that heat using heat recovery chillers, to a useful temperature for us, that's about 40 degrees Celsius, and we push that across the bridge to Ontario, all of our buildings in Ontario, then have thin coil units. They use that 40-degree heat to heat buildings. The return side of that comes back to Quebec, and then on the Quebec side, we have a loop and all of our buildings in the Quebec side, then use heat pumps so we extract the last bit of heat. So, imagine you you've returned from a fan coil, but you're still slightly warm. That slightly warm water is enough to drive a heat pump inside the buildings. And then finally, that goes back to Kruger again, and Kruger heats it back up with their waste heat comes back. So that's our that's our heating loop. The cooling side is coupled to the Ottawa River. And so instead of us rejecting heat to the atmosphere through cooling towers, our coolers are actually coupled to the river. That's a very tight environmental window that you can operate in. So, we worked with the minister the environment climate change in Quebec to get our permit to do it. We can only be six degrees difference to the river, but our efficiency is, on average, like on an annual basis, more than double what it would be to a cooling tower for the same load. So, we're river coupled with respect to cooling for the whole development, and we're coupled to Kruger for heating for the whole development. And what that allows us to do is eliminate fossil fuels. Our input is clean Quebec electricity, and our output is heating and cooling.   Trevor Freeman  34:56 So, none of the buildings, you know, just for our listeners, none of the buildings have any. sort of fossil fuel combustion heating equipment. You don't have boilers or anything like that, furnaces in these in these buildings,   Scott Demark  35:06 no boilers, no chillers, no   Trevor Freeman  35:09 that's awesome. And just for full transparency, I should have mentioned this up front. So, the zibi community utility is a partnership between Zibi and Hydro Ottawa, who our listeners will know that I work for, and this was really kind of a joint venture to figure out a different approach to energy at the city site.   Scott Demark  35:28 Yeah, that's right, Trevor. I mean the concept, was born a long time ago now, but the concept was born by talking to Hydro Ottawa about how we might approach this whole campus differently. You know, one of hydro Ottawa's companies makes electricity, of course, Chaudiere Falls, and so that was part of the thinking we thought of, you know, micro grids and islanding this and doing a lot of different things. When Ford came in, and we were not all the way there yet and made changes the Green Energy Act. It made it challenging for us to do the electricity side, but we had already well advanced the thermal side, and hydro, you know, hydro makes a good partner in this sort of thing. When a when a developer tells someone, I'd like you to buy a condo, and by the way, I'm also the district energy provider that might put some alarm bells up, but you put a partnership in there with a trusted, long term utility partner, and explain that, you know, it is in the in the public interest, they're not going to jack rates or mess with things. And then obviously, just, you know, hydro had such a long operating record operating experience that they really brought sort of an operations and long-term utility mindset to our district energy system.   Trevor Freeman  36:45 So, looking at a system like the Zibi community utility or other district energy systems, is this the kind of thing that can scale up over time? And, you know, I bring this up because you hear people talk about, you know, a network of district energy systems across a city or across a big geographic area. Are these things that can be interconnected and linked, or does it make more sense as standalone district energy systems in those conditions that you talked about earlier?   Scott Demark  37:17 Very much the former Trevor like, and that's, you know, that's where, you know, places like Copenhagen are today. It's that, you know, there was, there was one district energy system, then there was another, then they got interconnected, then the third got added. And then they use a lot of incineration there, in that, in that part of the world, clean incineration for garbage. And so then an incinerator is coming online, and so that incinerators waste heat is going to be fed with a new district energy loop, and some other factory is going to use the primary heat from that, and then the secondary heat is going to come into the dictionary system. So, these things are absolutely expandable. They're absolutely interconnectable. There are temperature profiles. There's modern, modern thoughts on temperature profiles compared to older systems. Most of the old, old systems were steam, actually, which is not the most efficient thing the world, but that's where they started and so now you can certainly interconnect them. And I think that the example at Zibi is a decent one, because we do have two kinds of systems there. You know, I said we have fan coil units in in the Ontario side, but we have heat pumps on the other side. Well, those two things, they can coexist, right? That's there. Those two systems are, are operating together. Because the difference, you know, the difference, from the customer's perspective, in those two markets are different, and the same can be true in different parts of the city or when different sources and sinks are available. So, it is not one method of doing district energy systems. What you do is you examine the ingredients you have. I keep saying it, but sources and sinks. How can I look at these sources and sinks in a way that I can interconnect them and make sense? And sometimes that means that a source or a sink might be another district energy system,   Trevor Freeman  39:12 Yeah, systems that maybe work in parallel to each other, in cooperation with each other. Again, it's almost that temporal need where there's load high on at one point in time and low on the other point in time. Sharing is a great opportunity.   Scott Demark  39:26 Yeah, absolutely   Trevor Freeman  39:27 great. Okay, last question for you here, Scott, what is needed, maybe from a regulatory or a policy lens to encourage more implementation of district energy systems. How do we see more of these things happen here in Canada or North America?   Scott Demark  39:45 The best way to put this, the bureaucracy has been slow to move is, is what I'll say. And I'll use Zibi as that example. When we when we pitch the district energy system. At Zibi, we had to approach the City of Ottawa, and we had to approach the city at Gatineau, the City of Ottawa basically said to us, no, you can't put those in our streets. Engineering just said, no, no, no, no. And so, what we did at Zibi is we actually privatized our streets in order to see our vision through, because, because Ottawa wasn't on board, the city of Gatineau said, Hmm, I'm a little worried. I want you to write protocols of how you will access your pipes and not our pipes. I want to understand where liability ends and starts and all of this kind of stuff. And we worked through that detail slowly, methodically with the city of Gatineau, and we came to a new policy on how district energy could be in a public street and Zb streets are public on the Gatineau side today, you know, come forward 10 years here, and the City of Ottawa has a working group on how to incorporate District Energy pipes into streets. We've been able to get the City of Ottawa to come around to the idea that we will reject and accept heat from their sewer. You know, Hydro Ottawa, wholly owned company of the City of Ottawa, has an active business in district energy. So Trevor, we've come really far, but it's taken a long time. And so, if you ask me, How can we, how can we accelerate district energy, I think a lot of it has to do with the bureaucracy at municipalities. And you know, we're we see so much interest from the Federation of Canadian municipalities, who was the debt funder for zcu. We have multiple visits from people all over Canada, coming to study and look at this as an example. And I'm encouraged by that. But it's also, it's also not rocket science. We need to understand that putting a pipe in a street is kind of a just, just a little engineering problem to solve, whereas putting, you know, burning fossil fuels for these new communities and putting it in the atmosphere, like the genies out of the bottle, right, like, and unfortunately, I think, for a lot of bureaucrats, the challenge at the engineering level is that that pipe in the street is of immediate, complex danger to solving that problem, whereas it's everybody's problem that the that the carbons in the atmosphere. So, if we could accelerate that, if we could focus on the acceleration of standards around District Energy pipes and streets, the rights of a district energy company to exist, and not to rant too much, but give you an example, is that a developer is required to put gas infrastructure into a new community, required, and yet you have to fight to get a district energy pipe in the street. So there needs to be a change of mindset there, and, and, and we're not there yet, but that's where we need to go.   Trevor Freeman  43:07 Yeah, well, it'll be interesting. You know, in 10 years, let's talk again and see how far we come. Hopefully not 10 years. Hopefully it's more like five, to see the kind of change that you've seen in the last decade. But I think that the direction is encouraging, the speed needs a little bit of work, but I'm always encouraged to see, yeah, things are changing or going in the right direction, just slowly. Well, Scott, we always end our interviews with a series of questions to our guests, so as long as you're okay with it, I'll jump right into those. So, the first question is, what is a book you've read that you think everybody should read?   Scott Demark  43:41 Nexus? Which is by Harare. He's the same author that wrote sapiens. Lots of people be familiar with sapiens. And so, Nexus is, is really kind of the history of information that works like, how do we, how do we share and pass information? And kind of a central thesis is that, you know, information is, is neither knowledge nor truth. It is information, and it's talking a lot about, in the age of AI, how are we going to manage to move information into truth or knowledge? And I think it, you know, to be honest, it kind of scared the shit out of me reading it kind of how, how AI is impacting our world and going to impact our world. And what I thought was kind of amazing about it was that he really has a pretty strong thesis around the erosion of democracy in this time. And it's, it was, it was really kind of scary because it was published before the 2024, election. And so it's, it's really kind of both a fascinating and scary read. And I think really something that everybody should get their head around.   Trevor Freeman  44:59 Yeah, there's a few of those books recently that I I would clear or classify them as kind of dark and scary, but really important or really enlightening in some way. And it kind of helps you, you know, formalize a thought or a concept in your head and realize, hey, here's what's happening, or gives you that kind of the words to speak about it in this kind of fraught time we're in. So same question. But for a movie or a show, is there anything that you think everybody should watch   Scott Demark  45:29 That's harder. I think generally, if I'm watching something, it's for my downtime or own entertainment, and pushing my tastes on the rest of the world, maybe not a great idea. I if I, if I'm, if I'm kind of doing that, I tend to watch cooking shows, actually, Trevor. So, like, that's awesome. I like ugly, delicious. I love David Chang. I like, I like, mind of a chef, creativity behind a chef. So those kinds of things, I'd say more. So, if there was something to like that. I think somebody else should, should watch or listen to I have, I have a real love for Malcolm Gladwell podcast, revisionist history. And so if I thought, you know, my watching habits are not going to going to expand anybody's brain. But I do think that Malcolm's perspective on life is, is really a healthy it's really healthy to step sideways and look at things differently. And I would suggest, if you have never listened to that podcast, go to Episode One, season one, and start there. It's, it's, it's fantastic.   Trevor Freeman  46:39 Yeah, I agree. I'll echo that one. That's one of my favorites. If we were to offer you or not, but if we were to offer you a free round-trip flight, anywhere in the world, where would you go?   Scott Demark  46:50 That's hard. So much flight guilt, you know, I know it's a hard assume that there's carbon offset to it. It's an electric plane.   Trevor Freeman  47:00 That's right, yeah,   Scott Demark  47:01 the we, my family, had a trip planned in 2020 to go to France and Italy. My two boys were kind of at the perfect age to do that. It would have been a really ideal trip. And so, I've still never been to either of those places. And if I had to pick one, probably Italy, I would really like to see Italy, mafuti. I think it would be a fantastic place to go. So probably, probably Italy.   Trevor Freeman  47:25 My favorite trip that I've ever done with my wife and our six-month-old at the time was Italy. It was just phenomenal. It was a fantastic trip. Who's someone that you admire?   Scott Demark  47:36 I have a lot of people, actually, a lot of people in this, in this particular space, like, what would I work in that have brought me here to pick one, though I'd probably say Peter Busby. So, Peter Busby is a mentor, a friend, now a business partner, but, but not earlier in my career. Peter Busby is a kind of a, one of the four fathers, you know, if you will, of green design in Canada. He's an architect, Governor General's Award-winning architect, actually. But I think what I, what I really, appreciate about Peter, and always will, is that he was willing to stand up in his peer group and say, hey, we're not doing this right. And, you know, he did that. He did that in the early 80s, right? Like we're not talking he did it when it cost his business some clients. He did it when professors would speak out against him, and certainly the Canadian Association of architecture was not going to take any blame for the shitty buildings that have been built, right? And he did it. And I remember being at a conference where Peter was getting a Lifetime Achievement Award from the Canadian architects Association, and so he's standing up, and people are all super proud of him. They're talking about his big life. And he kind of belittled them all and said, you’re not doing enough. We're not doing enough like he's still he's still there. He's still taking the blame for where things are, and that things haven't moved fast enough, and that buildings are a massive part of our carbon problem, and probably one of the easier areas to fix. You know, we're talking about electric planes. Well, that's a that's a lot more difficult than it is to recover energy from a factory to heat a community, right? I admire him. I learn things from him all the time. He's got a great book out at the moment, actually, and, yeah, he'd be right up there on my in my top list,   Trevor Freeman  49:54 Awesome. What is something about the energy sector or its future that you're particularly excited about?   Scott Demark  50:00 I wish you asked me this before the election. I I'm feeling a little dark. Trevor, I think there needs to be a price on pollution in the world. Needs to be a price on pollution in America, in Canada, and I'm worried about that going away. in light of that, I'm not, I'm not super excited about different technologies at the moment. I think there are technologies that are helping us, there are technologies that are pushing us forward, but there's no like silver bullet. So, you know, a really interesting thing that's coming is kind of this idea that a small nuclear reactor, okay, very interesting idea. You could see its context in both localized electricity production, but all the heat also really good for district entry, okay, so that's an interesting tech. It obviously comes with complications around security and disposal, if you like. There's our nuclear industry has been allowed to drink like it's all complicated. So, I don't see one silver bullet in technology that I'm like, That's the answer. But what I do see, I'll go back to what we were talking about before, is, you know, we had to turn this giant ship of bureaucracy towards new solutions. Okay, that's, that's what we had to do. And now that it's turned and we've got it towards the right course, I'm encouraged by that. I really am. You know, there are champions, and I'll talk about our city. You know, there's champions in the City of Ottawa who want to see this happen as younger people have graduated into roles and planning and other engineering roles there. They've grown up and gone to school in an age where they understand how critical this climate crisis is, and they're starting to be in positions of power and being in decision making. You know, a lot of my career, we're trying to educate people that there was a problem. Now, the people sitting in those chairs, it they understand there's a problem, and what can they do about it? And so I am, I am excited that that the there is a next generation sitting in these seats, making decisions. The bureaucracy the ship is, is almost on course to making this difference. So I do think that's encouraging. We have the technology. We really do. It's not rocket science. We just need to get through the bureaucracy barriers, and we need to find ways to properly finance it.   Trevor Freeman  52:34 Right? I think that's a good place to wrap it up. Scott, thanks so much for your time. I really appreciate this conversation and shedding a little bit of light, not just on the technical side of district energy systems, but on the broader context, and as you say, the bureaucracy, the the what is needed to make these things happen and to keep going in that right direction. So thanks a lot for your time. I really appreciate it.   Scott Demark  52:56 Thank you, Trevor, good to see you.   Trevor Freeman  52:57 All right. 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 [email protected]
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  • thinkenergy shorts: the on and offs of trading electricity
    Will U.S. tariffs disrupt Canada’s energy sector? What is the current state of cross-border electricity trade? How can we strengthen interprovincial connections to secure a sustainable energy future in our country? Host Trevor Freeman summarizes the on and offs of Canada’s electricity trade. Tune in to learn about the complexities and challenges of evolving energy policies, infrastructure, and regulatory landscapes governed by both federal and provincial authorities. Related links   ●     Canadian Energy Regulator: https://www.cer-rec.gc.ca/en/index.html ●     The Transition Accelerator: https://transitionaccelerator.ca/  ●     Electrifying Canada: https://electrifyingcanada.ca/ ●     Canada Electricity Advisory Council: https://natural-resources.canada.ca/energy-sources/canada-electricity-advisory-council ●     thinkenergy episode 143 with Quest Canada: https://thinkenergypodcast.com/episodes/electrifying-canadas-remote-communities-with-quest-canada/ ●     Trevor Freeman on LinkedIn: https://www.linkedin.com/in/trevor-freeman-p-eng-cem-leed-ap-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: Trevor Freeman  00:07 Welcome to a think energy short hosted by me, Trevor Freeman, this is a bite sized episode designed to be a quick summary of a specific topic or idea related to the world of energy. This is meant to round out our collective understanding of the energy sector, and we'll compliment our normal guest interview episodes. Thanks for joining and happy listening.  Hi everyone. Welcome back to another thinkenergy short. I'm your host, Trevor Freeman, today we're going to take a look at Canada's electricity trade. You may recall that in my first episode of 2025 we did a look ahead at the year in energy, and we did briefly touch on potential upcoming tariffs, and I highlighted that there is a fair amount of trade and electricity across the border. So, given that we are still on the potential cusp of these tariffs being implemented, I'm recording this on march 3, and March 4 is the date that new tariffs are set to be implemented by the US on Canada, we thought it was probably a good idea to take a look at trade through the lens of electricity, to give you a sense of how this might impact electricity and what the future might hold. So we'll look at the current landscape, the challenges posed by some of these recent policies, and the potential for strengthening interprovincial connections to ensure a resilient and sustainable energy future.  So, let's start by establishing the current state of Canada's electricity trade. In short, Canada's electricity grids were designed to serve local demand, rather than looking at a large scale, integrated national grid, for all. We'll get more into this shortly, but it's the main reason why you'll see the majority of Canada's electricity grids at the provincial level are kind of oriented north to south when it comes to interconnections, rather than east to west. They are a stronger trade relationship to meet the higher demand of the United States, rather than between provinces and territories. Canada's electricity trade has long been a cornerstone of the North American energy framework that's governed by both federal and provincial authorities. These cross-border interconnections have facilitated a robust exchange with Canada, exporting around $3.2 billion worth of electricity to the United States in 2023 alone. And yes, that was billion with a B. So, let's talk about cross border trade. The Canadian energy regulator, or CER, oversees electricity exports to the United States, ensuring compliance with market regulations, fair access and impact assessment on our domestic supply. It should be noted that the CER does not regulate electricity imports into Canada. That is the role of provincial Crown corporations or private market participants who decide on the volume of electricity being traded here in Ontario, as we've talked about many times on the show, the IESO, or Independent Electricity System Operator decides on the amount of electricity that is needed in coming in terms of infrastructure, the CER regulates 86 different international power lines that connect Canada's provinces to the US electricity grid in different locations. So, to help you visualize this, you know, imagine a map of North America, starting west to east. We've got British Columbia, which is linked to the US Pacific Northwest grid. Manitoba and parts of Ontario are both connected to the US midcontinent grid. The other part of Ontario and Quebec are connected to the US Eastern grids. And finally, New Brunswick is connected to the US New England grid. So, there are a lot of different connection points across the map. So that gives you a picture of our current trade relationship, so, now let's look at how some of the recent policy shifts may affect that.  Canadians will be well aware that the dynamics of international trade are being tested by the recent shift in the US approach to trade policies, and that includes the electricity trade. As I said at the beginning, I'm recording this on march 3, the day before broad, sweeping tariffs are set to be imposed by the United States on Canada, and that will impact electricity potentially, as well. The Trump administration's imposition of tariffs on Canadian imports has introduced a whole layer of uncertainty and tension. In response, Canadian officials have contemplated numerous different measures, including restricting electricity exports to the United States, states like Michigan and in New York or Minnesota who receive a lot of electricity from us. In Ontario, our recently reelected premier Doug Ford has highlighted the significance of these exports and has noted that Canada's electricity has powered 1.5 million American homes just last year, as recently as last month, Premier Ford raised the possibility of charging Americans more for electricity that Ontario sends to the US, and has also announced plans to cut off energy exports to the United States if the Trump administration moves ahead with tariff threats. These developments create a climate of uncertainty, and such trade disputes underscore the vulnerability inherent in our current trade dependent system. That vulnerability has raised calls for Canada to look and invest inward, which brings us to interprovincial connectivity. Let's examine the case for strengthening interprovincial connectivity in Canada, as I said at the top, we don't have a national grid. In fact, Canada's electricity infrastructure, which we've talked about many times, consists of multiple provincial or territorial grids, each governed and regulated by its respective province or territory. They also vary in systems and resources for producing electricity, with some regions having ample access to water resources, hydroelectricity, for example, others relying heavily on nuclear energy, and still, others looking more to fossil fuels, like oil or gas for electricity generation, a more cohesive pan Canadian electricity grid has long been a topic of conversation, even before this current threat of tariffs from the United States. A few years ago, there was renewed interest in the idea of interprovincial connectivity to achieve a 100% net zero electricity system by 2035 and eliminate harmful emissions countrywide by 2050. Basically, utilizing the electricity grid to support decarbonization at the individual customer level. Of course, the federal government has recently relaxed its goal for a net zero electricity system by 2035 mostly due to feasibility concerns, but the goal is still there to achieve Net Zero electricity generation across the entire country, and work has already been done towards that. So, working closely with Natural Resources Canada, the transition accelerator, which is a nonprofit organization dedicated to accelerating the transition to low carbon economy and advancing Canada's 2050 climate target, created an initiative called Electrifying Canada, which was focused on widespread electrification throughout the economy. That initiative brought together a diverse group of stakeholders, including government, indigenous peoples, industry, labor and civil society, to develop a roadmap for the electrification of Canada. This roadmap runs in parallel with the federal government's Electricity Advisory Council, and outlines recommendations to create a pan Canadian electricity grid, including identifying the infrastructure needed, the regulatory and policy changes that are required and the necessary investments needed to make it happen. Given the challenges presented by the United States and the growing discourse around bolstering interprovincial electricity connections, enhancing our domestic grid could offer several different benefits. These could include energy security. So, by reducing reliance on external markets, we can ensure a more stable and self-sufficient energy supply. There's also economic resilience, strengthened interprovincial trade can mitigate the economic impacts of international trade disputes and tariffs. And finally, there are environmental goals, so a cohesive national grid can facilitate the integration of renewable energy sources, aiding in the achievement of our net zero emissions targets. The CERs Canada's energy future 2023 report projects a 27% increase in interprovincial transmission capacity by 2035 under a global net zero scenario. So, we need this interprovincial connectivity in order to meet our net zero targets. It's something that kind of has to happen anyway, or is one of the key strategies in order to make that happen. This expansion would enable more efficient electricity transfers between provinces, allowing us to optimize resource utilization and enhance grid reliability. All the things that we talk about on this show about how to make our grid more efficient and more effective can be enhanced by looking not just at our provincial grids, but at more of a pan Canadian grid. While a National Grid offers many benefits, there are significant challenges to overcome, surprise. Surprise. We talk about this all the time on the show, so let's explore some of these challenges and considerations in order to make interprovincial connections a reality. To start with, the existing infrastructure was primarily designed for localized needs and aligning the diverse regulatory frameworks of each province or territory presents a complex challenge. Additionally, significant investment would be required to develop the necessary transmission lines and related infrastructure. So, it's both a regulatory challenge as well as a physical infrastructure challenge. We just don't have all the transmission lines and interconnections that are required. Here, according to the CER Market Snapshot webpage, electricity transmission lines in the Yukon and Northwest Territories do not actually connect to the larger North American grids or even to each other. And Nunavut doesn't have any transmission lines connecting its communities at all, but rather, each community independently generates and distributes its own electricity. I'll draw your attention back to an episode that I did last October with Gemma Pinchin from Quest Canada. And in that conversation, she highlighted that almost 200,000 Canadians in more than 280 remote communities don't connect to their local electricity grid or natural gas system, and it's not feasible at the moment for them to do so, given how remote they are. So, that presents some challenges as well. At a more macro level, looking at interprovincial framework, in August 2023 Ontario and Quebec announced a 600-megawatt electricity trade agreement, exemplifying the potential for greater interprovincial collaboration. Such initiatives could serve as blueprints for broader efforts to enhance our national grid. Despite these challenges, there is progress being made by investing in our domestic infrastructure and fostering provincial collaborations, Canada can build a resilient, sustainable and self-reliant energy system poised to meet future challenges. The energy transition, as we've talked about before is all encompassing and includes many different strategies. So, while we sometimes talk about the end result that EV or that heat pump that needs to be installed on the show, we also need to look at the more macro level, as how do we actually arrange our energy systems and our provincial grids, and what is the best option for that.  So, that wraps up our look at Canada's electricity trade and how the current trade landscape might impact that moving forward. Hopefully you found that interesting. Thanks for tuning in for another think energy short, as always, we'd love to hear from you, and we'll talk to you next time.  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 [email protected]  
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  • Capturing lightning in a bottle with Energy Storage Canada
    What does Canada do with excess energy? How is it stored today and how will it be stored as the energy industry evolves? Justin Rangooni, CEO of Energy Storage Canada, shares how energy storage supports a sustainable future for Canadians—from enhanced flexibility to affordability, large-scale grids to individual consumer needs. Listen to episode 152 of thinkenergy to learn about ongoing projects and challenges facing the energy storage sector in Canada. Related links: Justin Rangooni on LinkedIn: https://www.linkedin.com/in/justin-rangooni-5063b542/  Energy Storage Canada: https://www.energystoragecanada.org/  TC Energy Pump Storage Project: https://www.tcenergy.com/operations/power/pumped-storage-project/  From Small to Mighty report: https://energyontario.ca/Files/OEA_ESC_From_Small_to_Mighty_Dec_2024.pdf  Ontario Energy Board: https://www.oeb.ca/  Trevor Freeman on LinkedIn: https://www.linkedin.com/in/trevor-freeman-p-eng-cem-leed-ap-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  
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  • thinkenergy shorts: shining the light on power outages
    How can you prepare for the inevitability of a power outage? What role does your utility provider play in restoring power? How are they being proactive about future outages? In this episode of thinkenergy, host Trevor Freeman shines the light on power outages and the strategies used by utilities to manage them. Learn about preventive measures, emergency responses, and the tools Hydro Ottawa uses to restore power quickly and enhance grid resilience. Listen in. Related links ●     Canadian Red Cross Emergency Preparedness Kit: https://www.redcross.ca/how-we-help/emergencies-and-disasters-in-canada/for-home-and-family/get-a-kit ●     Hydro Ottawa Outage Centre: https://hydroottawa.com/en/outages-safety/outage-centre ●     Hydro Ottawa Emergency Preparedness: https://hydroottawa.com/en/outages-safety/emergency-preparedness ●     Trevor Freeman on LinkedIn: https://www.linkedin.com/in/trevor-freeman-p-eng-cem-leed-ap-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: Trevor Freeman  00:07 Welcome to a think energy short hosted by me, Trevor Freeman. This is a bite sized episode designed to be a quick summary of a specific topic or idea related to the world of energy. This is meant to round out our collective understanding of the energy sector, and will complement our normal guest interview episodes. Thanks for joining and happy listening.  Hey everyone, and welcome back, as you heard in the intro, this is a think energy short, so it'll just be me diving into a certain topic that helps round out our understanding of the energy world. Today, we're talking about something that we've all experienced or has affected us in one way or another. At some point power outages. So, a power outage is never fun. Nobody wants to go through that, but as we increasingly electrify our lives, they become more and more impactful when our mode of transportation and our method of heating and cooling our homes relies on electricity, we want that power back as soon as possible. Today, we're going to look at how utilities like Hydro Ottawa manage outages, from prevention to repairs so that we get power back on as soon as possible. Now here in Ottawa, we all know how unpredictable the weather can be. One minute it's a blizzard, the next it's sunny and 15 degrees outside, or vice versa. And over the past few years, we've seen it all from wild wind storms, everybody remembers the derecho, tornados, ice storms, floods, we've kind of run the gamut of weather, and that's going to continue as climate change changes our global weather patterns, we're going to see more and more extreme weather. So, this is a topic that's not going anywhere. It's also not just mother nature that's throwing us curveballs. Sometimes it's a squirrel or another animal that's, you know, causing mischief on our power lines, or a car that takes out a hydro pole, or just equipment reaching the end of its life. Whatever the cause, when the power goes out, all we want to know is one thing, when will it be back on? So today, we'll go behind the scenes a little bit and see how we tackle outages from start to finish. We'll look at the strategies that we use to prevent outages, the priorities that we follow during a storm, and the lessons learned to improve the grid for the future. So, let's dive in.  The first topic is prevention. Now we can't predict all outages. For example, if it's animal interference or a car accident, we can't predict that. But, for weather related outages, you might be surprised to know that Hydro, Ottawa has a team monitoring the weather, 24/7. They're kind of like our weather detectives, and they look at forecasts and try to predict potential impacts to the grid related to weather. Even when the skies are clear, however, our crews are working hard to prepare ourselves for things like inclement weather. They're out there, inspecting lines, trimming trees and upgrading equipment. Think of it as giving our entire electrical system a regular health checkup. Speaking of health checkups, trees are a major culprit when it comes to outages, especially here in the Ottawa Valley, where we have so many trees and a lot of forested and wooded areas, which is great, it's why we love this area, but that can interfere with our power lines. So Hydro Ottawa has a team of dedicated arborists who work year-round to keep branches trimmed and clear of power lines. But sometimes there is a storm on the horizon, and that's when things kick into high gear. Our crews are put on standby. We alert our customers through email and text and social media in order to be as prepared as possible and let us respond quickly when an outage does happen. So, during the storm, when the storm hits and the power goes out, what happens then? While restoring power isn't as simple as just flipping a switch. Hydro Ottawa follows a carefully structured plan to ensure safety and that we get the lights back on as quickly as possible. Let's take the example of a major storm that has caused widespread outages across our service territory. Our first job is to investigate the extent of the damage and understand what's actually happened. Where is there damage on our system? Now when it comes to restoration, safety is our number one priority, so we want to address any hazards like downed power lines immediately, as soon as we find out about them, and that's both for the safety of the public and the safety of our crews. Now our crews may be out there even while the storm is still going on, so safety is absolutely paramount, and we ensure that they work safely. The next focus of ours would be critical infrastructure. So, this is things like our own substations and main power lines, the real backbone of our system that provides power to the rest of the city, and then we look at the essential services. So, these would be things like hospitals, water treatment plants, things that our emergency responders need. We then move on to widespread outages. So, our goal is to bring customers back on as soon as possible. And we look for those areas where we can get the largest number of customers back on the quickest. After that, we would move to smaller neighborhoods and smaller clusters, those pockets of outages where there are less customers impacted. And finally, we move on to individual homes and businesses that might be out. Now it's important to note here that if those homes and businesses have sustained damage to their own electrical equipment, so something that is customer owned, that may need to be addressed before we're able to restore power, and the customer needs to work with a licensed electrician to make those repairs before we can turn the power back on. But the good news is is we will work with a customer and help them understand what's required on their side in order for us to restore power safely. Again, I can't stress this enough, we want to make sure we do everything as safe as possible for the customers and for our crews. Throughout this entire process, communication is absolutely critical. So, we want to be communicating with our customers about what's happening on the grid, hopefully giving some insight into when they might expect the power to be back on. To do this, we use outage maps on our website and on our app, text alerts, and social media in order to communicate. Now, it's important to know here that we provide initial restoration times, but those may change once our crew gets on the site and assesses the damage, or as a project progresses and we understand what's required to get that power back on. So, sometimes restoration times can change, and they are dependent on a number of different factors. Can be weather conditions, the location of the outage, how severe the damage is, and what other outages are happening on the grid. During an outage, it's important that you as the customer also stay safe. So, in the winter, stay in your home as long as it's safe and warm and you have food and water. The city during widespread outages, or if an emergency is declared, may open emergency warming centers or cooling centers during the summer months. And you can get more information on that by listening to local broadcasts, by looking at city resources and also checking out Hydro Ottawa resources. One thing I can say is that during a storm and while there's a power outage, our crews will be at work, 24/7, until power is restored to every customer. Okay. So, the storm is over and the power is restored, so the work stops there, right? Wrong. After every storm, we look for lessons learned to improve our response and improve the grid's resiliency. So, we look at outage data, response times, the repair efforts, to really refine our strategies and determine where improvements can be made. One question that we often get, especially after storms, is, why not just put all the power lines underground to prevent storm related outages? While that may sound like a great idea, the reality is that underground systems are significantly more expensive, sometimes up to 11 times the cost of overhead lines. So, undergrounding may work in some cases, it's definitely not a one size fits all fix. The last section to talk about is how to be prepared power outages, unfortunately, will happen. We can't be 100% sure that we can prevent them. So how can you make sure you're prepared? Well, the Canadian Red Cross recommends having an emergency kit ready with enough supplies to be self-sufficient for at least 72 hours. Think about things like food, water, medications, flashlights, a battery powered radio, anything you might need to be self-sufficient for that 72-hour period. There are lots more tips that you can find on this on Hydro Ottawa's website. So have a look.  That wraps up today's episode. We've covered a number of different things, from before storm to after storm and continuous improvement. Just remember that you can stay informed by visiting Hydro Ottawa's outage map on our website or on our mobile app. You can follow us on social media and make sure you sign up for outage alerts. Thanks for tuning in to a think energy short and join us next time for another guest interview.  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 [email protected]
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About ThinkEnergy

Every two weeks we’ll speak with game-changing experts to bring you the latest on the fast-changing energy landscape, innovative technologies, eco-conscious efforts, and more. Join Hydro Ottawa’s Trevor Freeman as he demystifies and dives deep into some of the most prominent topics in the energy industry. Have feedback? We'd love to hear from you! Send your thoughts to [email protected]
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