The POWER Podcast

• 197. Debunking Nuclear Power’s Biggest Misconceptions and Why It’s Needed Today

  Despite nuclear power’s unmatched ability to produce reliable, carbon-free energy at scale, it is often dismissed by clean energy advocates in favor of renewable resources like wind and solar. Cost arguments and public misconceptions around safety and radioactive waste have kept it out of many mainstream climate strategies. But as Tim Gregory argues in his new book Going Nuclear: How Atomic Energy Will Save the World, this exclusion may be the greatest obstacle to achieving net zero goals. In fact, Gregory says in his book “net zero is impossible without nuclear power.” “Claiming renewables on their own are enough to replace fossil fuels is underestimating the challenge of achieving net zero,” Gregory said as a guest on The POWER Podcast. “Fossil fuels have basically defined the world order for the last couple of centuries, and to think that we can replace them with wind power and solar power, which are fundamentally tied to the whims of the weather, and the rotation of the planet in the case of solar, is really underestimating the scale of the challenge,” he said. “We need power that comes in enormous quantities exactly where we need it and when we need it,” Gregory continued. “I don’t want to live in a world without solar panels or wind turbines, but to think that they can do it on their own, I think, is honestly naive. We need something that’s reliable to compensate for the intermittence of renewables, and nuclear power would be absolutely perfect for that.” Notably, innovative companies and many government leaders around the world are backing nuclear power projects. “Big tech in North America has really cottoned on to these small modular reactors,” said Gregory. “Meta, Google, Microsoft, and Amazon are all going to be using small modular reactors to power their data centers. … This isn’t just a pipe dream—this is actually happening now in real time. … It’s been very, very encouraging watching that unfold.” Public perceptions on nuclear power are also trending in a positive direction, and the movement seems to be bipartisan. “It’s very, very encouraging that more than half of people in the UK either strongly support or tend to support nuclear power. Strong opposition to nuclear power, according to the latest poll, is actually below 10%,” Gregory reported. “As such, the two major political parties in the UK—that’s the Labor Party, which is kind of our left leaning party, and the Conservative Party, which is our right leaning party—they both support the massive expansion of nuclear power, which is really, really nice actually. It’s maybe something that both sides of the political spectrum can agree on.” The same is true in the U.S., where both Democrats and Republicans have gotten behind nuclear power. A case in point is the Accelerating Deployment of Versatile, Advanced Nuclear for Clean Energy (ADVANCE) Act, which was signed into law in July 2024. It passed with overwhelming bipartisan support in the Senate with a vote of 88–2, and in the House of Representatives with a vote of 393–13. “If your politics has you more concerned with environmental stewardship, and climate change, and phasing out fossil fuels, and getting rid of oil from the energy system, then nuclear power is for you. But then at the same time, if your politics has you perhaps more leaning towards economic growth, and the economy, and prosperity, and all that kind of thing, then nuclear power is for you as well, because it provides the energy that enables that economic growth,” Gregory said. “And so, it’s actually very, very encouraging to see that, at least in most countries, nuclear power is not a partisan issue, which is all too rare in the world these days.”

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• 196. Building ChatGPT for the Power Industry: EPRI Leads the Way

  More than 100 of the world’s largest energy companies are betting that artificial intelligence (AI) will revolutionize how electricity gets made, moved, and managed. But they’re not waiting for Silicon Valley to build it for them—they’ve taken matters into their own hands through an EPRI-led consortium. That initiative is the Open Power AI Consortium, which EPRI launched in March 2025 to drive the development and deployment of an open AI model tailored for the power sector. According to its mission statement, the Open Power AI Consortium “aims to evolve the electric sector by leveraging advanced AI technologies to innovate the way electricity is made, moved, and used by customers. By fostering collaboration among industry leaders, researchers, and technology providers, the consortium will drive the development and deployment of cutting-edge AI solutions tailored to enhance operational efficiencies, increase resiliency and reliability, deploy emerging and sustainable technologies, and reduce costs while improving the customer experience.” “We’re really looking at building an ecosystem to accelerate the development and deployment, and recognizing that, while AI is advancing rapidly, the energy industry has its own unique needs, especially around reliability, safety, regulatory compliance, and so forth. So, the consortium provides a collaborative platform to develop and maintain domain-specific AI models—think a ChatGPT tailored to the energy industry—as well as sharing best practices, testing innovative solutions in a secure environment, and long term, we believe this will help modernize the grid, improve customer experiences, and support global safe, affordable, and reliable energy for everyone,” Jeremy Renshaw, executive director for AI and Quantum with EPRI, said as a guest on The POWER Podcast. Among the consortium’s members are some of the largest energy companies in the world, including Constellation, Con Edison, Duke Energy, EDF, Korea Electric Power Corp. (KEPCO), New York Power Authority (NYPA), Pacific Gas and Electric Co. (PG&E), Saudi Electricity Co., Southern Company, Southern California Edison, Taiwan Power Co., and Tennessee Valley Authority (TVA). It also includes entities like Amazon Web Servies (AWS), Burns and McDonnell, GE Vernova, Google, Gulf Cooperation Council (GCC) Interconnection Authority, Korea Hydro and Nuclear Power (KHNP), Khalifa University, Microsoft, Midcontinent Independent System Operator (MISO), PJM, Rolls-Royce SMR, and Westinghouse Electric Co. “For many years, the power industry has been somewhat siloed, and there were not many touch points or communication between global utilities, technology companies, universities, and so forth. So, this consortium aims to facilitate making new connections between these important and impactful organizations to increase collaboration and information sharing that will benefit everyone,” Renshaw explained. EPRI, together with Articul8 and NVIDIA, has already developed the first set of domain-specific generative AI models for electric and power systems aimed at advancing the energy transformation. Although the technology has not been released publicly, it will be made available soon as an NVIDIA NIM microservice for early access. This development sets the foundation for more to come.

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• 195. Power Grid Security in the AI Era: Why Energy Dominance and Cybersecurity Can’t Be Separated

  In a special edition of The POWER Podcast, released in collaboration with the McCrary Institute’s Cyber Focus podcast, POWER’s executive editor, Aaron Larson, and Frank Cilluffo, director of the McCrary Institute for Cyber and Critical Infrastructure Security and Professor of Practice at Auburn University, discuss the evolving power grid and cybersecurity challenges. Specifically, they highlight the shift taking place from centralized power stations to more distributed energy resources, including solar farms and wind turbines. The conversation touches on the importance of a reliable power grid and the need to protect critical infrastructure. “From a national security standpoint, from an economic standpoint, from a public safety standpoint, if you don’t have power, all these other systems are somewhat irrelevant,” Cilluffo said. “There’s no infrastructure more critical than power.” Cilluffo noted that artificial intelligence (AI) is requiring increasingly more power, which can’t be ignored. “If we want to be AI dominant, we can’t do that if we’re not energy dominant,” said Cilluffo. “The two are in inextricably interwoven—hand in glove. And if you start looking at where the country wants to be technologically, if we want to lead, we really need to continue to double down, triple down, and look at all sorts of sources of energy as well.” While renewables are clearly leading when it comes to new generation being added to the grid today, emerging technologies including small modular reactors, fusion power, deep dry-rock geothermal, and space-based solar power, are on the horizon, promising potentially game-changing energy options. “And not to put a fine point on it, but you mentioned so many different forms of energy, and I’m reminded of the old test, the A, B, C, or D, all of the above. This sounds like it is clearly an all of the above,” Cilluffo proposed. Meanwhile, the enormous energy buildout in China was discussed. China is not just leading, but truly dominating the world in the construction of wind, solar, nuclear, coal, and energy storage projects in 2025, both in terms of capacity and projects under development. This leadership is evident across all five sectors, frequently accounting for the majority, or at least a plurality, of new global construction and installation. “China is a primary focus of a lot of our [Cyber Focus] podcast discussion, but it’s a race we cannot afford to lose, whether it’s around AI, quantum. And, I think you’re spot on; to get there, they recognize the need to really quadruple down on energy,” said Cilluffo. “I still think that we [the U.S.] want to be at the vanguard driving all of this.” And while it’s widely known that cybersecurity is critically important to energy systems, it’s often not prioritized the way it should be. “Everyone needs to be cyber aware, cyber informed,” Cilluffo said. “These are issues that we have to invest in. It can’t be an afterthought. It has to be something that everyone thinks through. And the reality is, don’t think it’s someone else’s problem: a) it’s all of our problems, and b) don’t think that it can be looked at after the balloon goes up—you need to be thinking all of this well in advance.”

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• 194. Hockey Hall of Famer Champions Geothermal Innovation in NYC

  The name Mike Richter is well-known among hockey fans. Richter spent 15 years in the National Hockey League as a goalie for the New York Rangers, including in 1994 when he was a fixture in the net during the team’s Stanley Cup winning season. Richter was also recognized as the most valuable player for the U.S.’s 1996 gold medal winning World Cup team, as well as a member of three U.S. Olympic teams, including in 2002 when the team won the silver medal. Richter was inducted into the U.S. Hockey Hall of Fame in 2008. But what is likely lesser known is that Richter is the current president of Brightcore Energy, a leading provider of integrated, end-to-end clean energy solutions to the commercial, institutional, and government markets. The Armonk, New York–headquartered company’s services include high-efficiency geothermal-based heating and cooling systems for both new construction and existing building retrofits, among other things. Brightcore’s turnkey, single-point solution encompasses all project development phases including preliminary modeling, feasibility and design, incentive and policy guidance, construction and implementation, and system performance monitoring. As a guest on The POWER Podcast, Richter noted that heating, ventilation, and air conditioning (HVAC) systems for commercial, industrial, and municipal buildings consume an enormous amount of energy in a place like New York City. Furthermore, the emissions associated with these systems can be significant. “If you can address that, you’re doing something important, and that’s really where our focus has been, particularly the last few years,” he said. Geothermal Heating and Cooling Systems Traditional geothermal often requires significant open space for the geothermal borefield and can have material time implications in project development. Brightcore says its exclusive UrbanGeo solution combines proprietary geothermal drilling technology and techniques that increase the feasibility of geothermal heating and cooling applicability while reducing construction development timelines. “We typically go between 500 and 1,000 feet down,” Richter explained. “The ambient temperature of the ground about four feet down below our feet here in New York is 55 degrees [Fahrenheit] year-round.” The constant and stable underground temperature is the key to geothermal heating and cooling systems. Even when the air above ground is extremely hot or freezing cold, the earth’s steady temperature provides a valuable heating or cooling resource. A geothermal system has pipes buried underground that fluid is circulated through, and a heat pump inside the building. In winter, the fluid in the pipes absorbs warmth from the earth and brings it inside. There, the heat pump “compresses” this heat, raising its temperature so it can warm the building air comfortably—even when it’s icy cold outside. In summer, the system works in reverse. The heat pump pulls heat out of the building’s air, sending it through the same underground pipes. Since the earth is cooler than the hot summer air, it acts like a giant heat sponge, soaking up unwanted heat from the building. This process cools the living space easily and efficiently, using a lot less energy than a regular air conditioner because the ground is always cooler than the hot outdoor air. So, whether it’s heating or cooling, a geothermal system can keep buildings comfortable by moving heat between the building and the earth. “[It’s] pretty straightforward and very, very efficient and effective, particularly—and this is key—at the extremes,” said Richter. “Air source heat pumps are excellent and they continue to get better,” he added.

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• 193. Understanding TerraPower’s Natrium Reactor Design and Demonstration Project Progress

  In the proverbial shadow of the Naughton Power Plant, a station in Kemmerer, Wyoming, that will stop burning coal at the end of this year, TerraPower is constructing what it calls “the only advanced, non-light-water reactor in the Western Hemisphere being built today.” The project represents more than just a new power source—it’s a symbolic passing of the torch from fossil fuels to next-generation nuclear technology. “We call it the Natrium reactor because it is in a class of reactors we call sodium fast reactors,” Eric Williams, Chief Operating Officer for TerraPower, said as a guest on The POWER Podcast. The Natrium design is a Generation IV reactor type, which is the most advanced class of reactors being developed today. “These designs have a greatly increased level of safety, performance, and economics,” Williams explained. Williams said the use of liquid metal coolant enhances safety. “Liquid metals are so excellent at transferring heat away from the reactor, both to exchange that heat into other systems to go generate the electricity or to remove the heat in an emergency situation,” he said. “For the Natrium reactor, we can do that heat removal directly to air if we want to, so that provides a very robust safety case for the reactor.” The design is also safer because it can run at low pressure. “The primary system is at atmospheric pressure; whereas, current pressurized water reactors have to pressurize the system to keep the liquid from boiling—to keep it in a liquid state,” Williams explained. “Liquid metal sodium doesn’t boil until about 800 to 900 degrees Celsius, and the reactor operates down at 500 degrees Celsius, so that can remain a liquid and still be at a very high temperature without having to pressurize it.” The liquid metal coolant also provides performance benefits. “One of those is the ability to store the energy in the form of molten salt heat coming out of the nuclear island,” said Williams. “That is really giving us the ability to provide basically a grid-scale energy storage solution, and it really matches up well with the current needs of the modern electricity grid.” Meanwhile, the energy storage aspect also allows decoupling the electricity generation side of the plant—the energy island—from the reactor side of the plant, that is, the nuclear island. That allows the energy island to be classified as “non-safety-related” in the eyes of the U.S. Nuclear Regulatory Commission (NRC). “That side of the plant has nothing to do with keeping the reactor safe, and that means the NRC oversight doesn’t have to apply to the energy island side of the plant, so all of that equipment can be built to lower cost and different codes and standards,” Williams explained. Notably, this also permits the grid operator to dispatch electricity without changing anything on the nuclear island. “That allows a different kind of integrating with the grid for a nuclear plant that hasn’t been achieved yet in the U.S.,” Williams said. “We’re very excited about that—the safety, the performance, and economics—and it really gives us the ability to have a predictable schedule, and construction will be complete in 2030.” While there is clearly a lot that needs to be done, and first-of-a-kind projects rarely go off without a hitch, Williams seemed pleased with how the project was progressing. “We’re really excited to be working in the state of Wyoming. It is just an outstanding state for developing any kind of energy project, including nuclear energy. The people in the community are really welcoming to us. The state legislators are always looking for ways to remove any obstacles and just explain to us how to get the permits we need and everything. So, the project has been going really well from that standpoint,” he said. In the end, Williams appeared confident that TerraPower would hit its current target for completion in 2030.

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