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James Walker
Chief Executive Officer & Director, NANO Nuclear Energy Inc.

NANO Nuclear Energy (NASDAQ:NNE)'s CEO James Walker Featured on Critical Mass

📅 Aug 05, 2026 Nano Nuclear Energy Inc. 20 MIN 140 VIEWS 24 SEGMENTS · 2 SPEAKERS
Thank you to ‪@CriticalMassio‬ for having our CEO, James Walker, on "How To Manufacture Nuclear Energy at Scale". "For nuclear now there's drivers coming from military bases, the tech industry for data centers, and places like the Canadian government for remote communities living off diesel," James stated, "There's all these different things now that nuclear is looking to fit into, and its in a unique position to fill these gaps." NANO Nuclear Energy Inc. (NASDAQ: NNE) is an advanced technology-driven nuclear energy company seeking to become a commercially focused, diversified, and verticall...

What James Walker said

Written from the verified transcript and checked against it. Every figure links to the moment it was said.

James Walker, CEO of Nano Nuclear Energy, described his company as an advanced Gen 4 reactor firm that started with very small reactors and shifted to larger systems to meet industry demand, particularly from data centers. He argued that the current nuclear momentum is industry-led, with demand from military bases, tech, and remote communities. Walker explained that microreactors, being fully modular and road-transportable, allow for continuous manufacturing and economies of scale through numbers, reducing construction delays and cost overruns. He noted that his company is among five commercial firms with NRC construction permits and is the only microreactor company with one. He discussed regulatory improvements, including reduced NRC licensing timelines, and highlighted legacy fuel supply chain issues from Russian HEU, leading to investments in enrichment and conversion, including incubating List Technologies and talks with Argentina. He detailed his background and the company's origins, and predicted a full-scale operational microreactor at University of Illinois by 2030, with annual deployments in the dozens.

Key takeaways

  1. Nano Nuclear plans to have its first commercial full-scale microreactor fully operational and licensed by 2030.
  2. By 2030, Nano Nuclear aims to deploy dozens of microreactor systems annually.
  3. Nano Nuclear is one of five companies with an NRC construction permit and the only microreactor firm.
  4. The company incubated List Technologies to advance enrichment capabilities for advanced fuels.
  5. Nano Nuclear is in talks with the Argentinian government to invest in conversion facilities for uranium hexafluoride.

Numbers and commitments

FigureWhat it refers toTypeAt
18 months and then 12 NRC maximum licensing timeframes reduced timeline 5:42
5 trillion dollars estimated grid infrastructure upgrades needed metric 8:22
2024 year of Nano Nuclear's IPO timeline 15:15
2020 or 2021 when Walker and Jay Yu began talking timeline 15:15
2016 year Walker moved to North America timeline 15:15
2030 target for full-scale microreactor operational timeline 18:10
2022 when Nano Nuclear started seriously eyeing fuel supply chain timeline 10:38

Chapters

  1. 0:00Company origin and strategy
  2. 1:07Industry momentum and demand drivers
  3. 2:21Microreactor model advantages
  4. 4:49Domestic and international scaling
  5. 5:42Policy and regulatory environment
  6. 8:22Data center demand and off-grid solutions
  7. 10:38Fuel supply chain challenges and investments
  8. 14:10Walker's background and company founding
  9. 18:10Outlook for 2030

Questions asked in this interview

8
  1. 0:15What's the brand about? Where are you heading for?
  2. 0:48So, from where you sit and how you view the industry, you see the narrative, but is there momentum?
  3. 2:01From your perspective, what are you bringing to the table and how do you have a sense, if I may say so, a belief in the micro model?
  4. 4:38So, how do you balance the two?
  5. 5:21Now, for the geographies that matter to you, what are you and your team encountering in terms of policy frameworks and a conducive environment for advanced nuclear?
  6. 7:31How does that feedback sort of come into your entry and factors into the sort of things that you design and put out there?
  7. 10:08So, you know, what are the kind of complexities, the barriers that you fear that you may encounter near term in terms of realizing your true potential?
  8. 17:51Very briefly, if you would, from now to the end of decade 2030, what are the prospects like both for the microreactor market in general and for Nano Nuclear Energy in particular?
Gor Sharan 0:03 ↗
Hello and welcome to the Critical Mass Show. I'm your host Gor Sharan. Joining us today is James Walker, who is the CEO of Nano Nuclear Energy. James, welcome.
James Walker 0:13 ↗
Well, thank you very much for having me.
Gor Sharan 0:15 ↗
Great to have you on the program. You know, let's get straight into it. For the uninitiated, those who are not aware of your company, give us the backstory. What's the company all about? What's the brand about? Where are you heading for?
James Walker 0:26 ↗
Sure. So, Nano Nuclear Energy is an advanced Gen 4 reactor company. We got our start making very small reactors and we gradually shifted into much larger systems to cater for what was a lot of industry demand coming for things like data centers. We've also diversified into other areas such as transportation and even the fuel supply chain.
Gor Sharan 0:48 ↗
You know, the public discourse goes along the lines of, you know, comes with some profound changes in the nuclear industry. We may be witnessing a bit of a renaissance. So, from where you sit and how you view the industry, you see the narrative, but is there momentum?
James Walker 1:07 ↗
I mean, there's a huge momentum now that's coming. I would say it's a bit of an unprecedented time in nuclear because it's being really pushed by industry this time. So, the demand is really being industry led. But that means there's more money involved this time. There's more diverse demand. So, for instance, for nuclear now, there's drivers coming from military bases. It's coming from the tech industry data centers, but it's also coming from places such as the Canadian government looking for power for remote communities that subsist off diesel. So, there's all these different things now that nuclear is looking to fit into and it's in a bit of a unique position to fill these gaps because it can be high base load power, can be off-grid, behind the meter, can collocate. The tech has advanced to a point where it can do new things it wasn't doing before and it's looking to do these things where it's never done them before, either.
Gor Sharan 2:01 ↗
We look at micro modular reactors, you look at SMRs, you look at large scale, all three facets and avenues have their own fans and detractors and what have you. From your perspective, what are you bringing to the table and how do you have a sense, if I may say so, a belief in the micro model?
James Walker 2:21 ↗
It's a good question because obviously I think everybody's familiar with the large scale reactor systems like the 1 gigawatt systems. Now, when you're building nuclear, it does make sense to be big. And historically those systems have been really big, so you get economies of scale through one reactor system. The industry moved towards SMRs and micro reactors because you never went from building one big reactor to the next big reactor system. You build one big reactor system and then there was a break. And the result was that really when people got around to these big construction projects, there was very significant time delays and cost overruns as a result. The SMR model was supposed to be something that counteracted that. So, you built several of these and you just kept building them and then you had the learning rate that enabled you just to get cheaper that way. Micro reactors take that to a different level where you now have a system that is as large as you can possibly make it before it stops being completely modular, which is our strategy here. And the reason why we're going that route is that now we can have a production line where we can continuously manufacture these systems. And if you do that, then the learning rate continues and you can get economies of scale through numbers of reactors rather than the scale of the one reactor system. This is I think the difference. At the moment there are five commercial companies that have filed for a construction permit with the NRC. We're one of those five, so it gives you sort of an idea of the leaders in the space and we're up there with them. But of those systems, we're the smallest and that's but we're the only one that can make every component and then move all those components by road. And that means our construction projects are more of an assembly project when all the components get there. And we can have that continuous manufacture at the local levels and move everything to site. We will cut down on construction times, possible time delays. And if you think as well, if we're deploying many reactors to site, say the first one is there, there are cost overruns, it's a smaller proportion of the overall project. So, it's less impactful economically to the overall price. Not to mention the fact that you've got more versatility when it comes to these smaller systems, too. We can be collocated off-grid, provide that baseload power, and assemble quickly.
Gor Sharan 4:38 ↗
For players such as yourself, how do you square this domestic scaling versus international deployment? After all, you have great ambition. So, how do you balance the two?
James Walker 4:49 ↗
It's a good point because ultimately, you could be limited by how many reactors you can actually manufacture. And obviously, we're going to build our own manufacturing facilities here in the states to cater to this sort of domestic market. But, the market in the states can be very different to say when we're looking at the markets in the Middle East. We're going to be looking at local partnerships in that kind of regions and make systems in different locations around the world and create that production line where we can make those microreactors continuously and output. I think that's the best way to try and cater towards the international market.
Gor Sharan 5:21 ↗
We can't possibly have a conversation of this nature without talking about policy frameworks and, you know, what kind of incentives and encouragement that you encounter from various parts of the world. Now, for the geographies that matter to you, what are you and your team encountering in terms of policy frameworks and a conducive environment for advanced nuclear?

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Cite this transcript

APA, MLA, BibTeX
APA

Walker, J. (2026, August 5). NANO Nuclear Energy (NASDAQ:NNE)'s CEO James Walker Featured on Critical Mass [Interview transcript]. Nano Nuclear Energy Inc.. CEOInterviews.AI. https://ceointerviews.ai/interview/1167764/

MLA

James Walker. "NANO Nuclear Energy (NASDAQ:NNE)'s CEO James Walker Featured on Critical Mass." Nano Nuclear Energy Inc., 5 Aug. 2026. Transcript, CEOInterviews.AI, https://ceointerviews.ai/interview/1167764/.

BibTeX
@misc{walker2026_1167764,
  author       = {James Walker},
  title        = {NANO Nuclear Energy (NASDAQ:NNE)'s CEO James Walker Featured on Critical Mass},
  howpublished = {Interview transcript, Nano Nuclear Energy Inc.. CEOInterviews.AI},
  year         = {2026},
  month        = {aug},
  url          = {https://ceointerviews.ai/interview/1167764/},
  note         = {Speaker-attributed transcript with timestamps}
}