Sep 24, 2025 · 45m · green-blueprint
Shortening the nuclear development cycle from decades to years
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
In this episode of The Green Blueprint, Kairos Power CEO Mike Laufer explains how rapid non-nuclear prototyping, passive safety architecture, and innovative commercial agreements with Google and TVA are revolutionizing advanced nuclear energy deployment.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. How this is scored →
The hosts as informed peer 3.8 Guest teaching 2.5 Guest disagreement 0.8 The hosts pushing back 0.3
speaking balance: gold is the hosts, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 17:35 Dismantling modular construction assumptions
The guest directly challenges the common nuclear industry assumption that modular construction will be trivial because the oil and gas industry does it regularly.
Hardest push from the hosts ▶ 18:55 Questioning simultaneous multi-unit build strainThe host presses the guest on whether building ETU-2, ETU-3, and Hermes in parallel triggers internal resource competitions or investor pushback.
Biggest teaching moment ▶ 28:15 Explaining recovery from out-of-tolerance pressure vesselThe guest explains in technical detail how in-house machining of 300 graphite blocks allowed Kairos to absorb major geometric distortion from an outsourced vessel.
The host holds their own ▶ 38:38 Citing personal battle scars from federal procurement minutiaeThe host leverages her professional background to validate and extend the guest's critique of conventional cost-plus federal contracting overhead.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | The hosts as informed peer | Guest teaching | Guest disagreement | The hosts pushing back | Why |
|---|---|---|---|---|---|---|
| Nuclear Industry Cost Challenges and Kairos Power's Approach | 0 | 0 | 0 | 0 | Introductory monologue and edited audio montage framing the cost overruns of traditional nuclear projects like Vogtle compared to Kairos Power's development philosophy. | |
| Introduction to The Green Blueprint and Mike Laufer | 0 | 0 | 0 | 0 | Host monologue with soundbite inserts explaining technical fundamentals of TRISO fuel, Flibe molten salt coolant, passive safety, and non-nuclear testing. | |
| The Google-TVA Deal and Early Prototype Testing in Alameda | 5 | 3 | 1 | 0 | Host recounts her firsthand visit to the Alameda hangar facility and asks about early agile iterations. Guest details applying aerospace and software development models to hardware. | |
| Constructing the First Engineering Test Unit (ETU-1) | 4 | 4 | 1 | 1 | Host asks if building non-nuclear test units was an obvious internal decision. Guest explains scaling down the geometry to half-scale and using ETU-1 to screen supply chain vendors. | |
| Scaling Iterations: Developing ETU-2, ETU-3, and Hermes | 4 | 3 | 1 | 0 | Guest details moving from stick-built to modular skid fabrication with ETU-2 and ETU-3, noting that modular construction in nuclear is far harder than industry assumptions suggest. | |
| The Strategic Logic of Continuous Building and Vertical Integration | 5 | 2 | 1 | 2 | Host probes whether building three units simultaneously creates resource strain or investor skepticism. Guest explains that continuous building prevents costly idle time in manufacturing. | |
| Managing Multi-Site Operations Across California, New Mexico, and Tennessee | 4 | 2 | 1 | 0 | Host asks about coordinating operations across California, New Mexico, and Tennessee. Guest describes the division of labor across modeling, manufacturing, and nuclear operations. | |
| Overcoming the Out-of-Tolerance Pressure Vessel Setback | 4 | 3 | 1 | 0 | Guest describes how a pressure vessel warped during horizontal hydrostatic testing, and how having in-house graphite machining enabled rapid adaptation without project derailment. | |
| Balancing In-House Capability with Strategic Partnerships | 4 | 3 | 1 | 1 | Host asks how Kairos chooses between vertical integration and outsourcing. Guest highlights partnerships for pumps and precast concrete 3D printing where external expertise is essential. | |
| Licensing Success: Hermes Reactor and NRC Construction Permit | 5 | 3 | 1 | 0 | Host frames NRC regulatory hurdles as a major investor risk. Guest explains securing the Hermes construction permit in just over two years and leveraging the site characterization for Hermes II. | |
| Transforming Government Procurement Through Milestone Contracting | 6 | 3 | 1 | 0 | Host demonstrates insider expertise citing her personal battle scars from rigid DOE reporting. Guest draws parallels to NASA's COTS program milestone contracting model. | |
| Hermes II and the Tripartite Commercial Model with TVA and Google | 4 | 3 | 1 | 0 | Host asks about commercial power generation for Hermes II. Guest outlines the tripartite agreement where Kairos develops, Google gains clean energy attributes, and TVA receives grid power. | |
| Ten-Year Commercial Roadmap and Scaling Prudently | 4 | 3 | 1 | 0 | Host asks about global and commercial roadmaps. Guest cites Northvolt's rapid expansion as a cautionary tale against overextending capital before proving single-plant operational excellence. |
Statements from this episode (19)
Plant Vogtle's new nuclear reactors doubled in cost to $28.5 billion
“The new reactors will now share a price tag of 28.5 billion dollars, almost double their original cost.”
Nuclear energy will fail as a baseload solution without cost certainty
“The main challenge with new nuclear is really the cost. It's a two-fold problem. It's not just high cost, it's high cost uncertainty, and we're in a particularly kind of perilous moment where people are recognizing the value of the fixed, reliable, base low po…”
Nuclear engineers struggle to adapt to iterative development, says Mike Laufer
“If you buy into the iterative process, you don't know what you're going to learn, and so you have to be able to take that information, which sounds simple, but engineers and people, nuclear engineers in particular, like to have everything, like, mapped out, li…”
TRISO particles replace massive concrete containment structures in Kairos nuclear reactors
“That little particle basically provides, like, all of the functionality of the big concrete structures in the light water reactors that are, you know, the major source of nuclear power today.”
No accident scenario can heat Kairos coolant enough to fail TRISO fuel
“The fact that the melting temperature for the salt is, you know, in like the 400, like we don't actually can't get the salt hot enough to like stress the fuel in the way that, that you could theoretically stress from other actors. So we don't have any scenario…”
Nuclear competitors are copying Kairos Power's non-nuclear prototyping model
“Now people are finally catching on and say if you build the non-nuclear version of it, you can go much faster, you can learn, you get the information, so others are kind of following along and kind of copying that model, but at the time it was really novel to …”
Kairos, TVA, and Google partner on a 50MW nuclear data center deal
“The Tennessee Valley Authority, Google, and California-based Kairos Power announced a collaboration today. TVA will eventually buy nuclear power from that plant in Oak Ridge, which will then supply up to 50 megawatts of energy to TVA's power grid. That grid po…”
Rare builds trap nuclear engineers in narrow career development bands
“In the nuclear space in particular, because there's so few build opportunities, there are a lot of people who just have experience in a very narrow band of that development cycle for the technology. And when you just do that one step, like, 20 times, you're mi…”
Kairos uses non-nuclear test units to screen out unreliable reactor suppliers
“If a supplier could deliver for what we needed for ETU, maybe they could deliver what we need for Hermes. We'd have to test that, or future reactors. But if they couldn't deliver what we needed for the non-nuclear system, there was no way they'd have any chanc…”
Kairos Power's engineering test unit is the world's largest FLiBe system
“We built the engineering test unit over the course of three years, and built and operated over three years, and that whole life cycle of experience, it's the world's largest FLIBE system. It will be the largest FLIBE system until we load SALT into the second e…”
Continuous hardware iteration is essential to maintain nuclear manufacturing efficiency
“When you have the overhead or the investment in the manufacturing capabilities, if you just wait for that operation experience, even at smaller timescales, you have a lot of people just sitting around not really doing anything. So, for us, Basically just have …”
Kairos manufactures modular reactor systems on mobile, shippable skids
“Albuquerque is really more around larger scale testing and manufacturing. And across the board for reactor systems, fuel and salt, and all that infrastructure. But what we're building there is mobile. The skids can be shipped. So, you know, future builds are n…”
An out-of-tolerance pressure vessel could be fatal to commercial nuclear projects
“If this was The reactor, and the vessel was out of tolerance, you would have a, it could be fatal to the project, depending on what you're looking at, or at least would be a huge delay, because you wouldn't have to just replace the vessel, you'd have to do roo…”
On-site machining saved Kairos Power's schedule despite a distorted test vessel
“The fact that we had the machining capabilities on site allowed us to process nearly all the blocks with minor modifications to adapt to the as, basically, as-built geometry.”
Precast concrete could be transformational for advanced nuclear reactor construction
“The opportunity around precast concrete, which is really just, like, potentially completely transformational in terms of how we build these buildings. Totally conventional and a lot of non-nuclear construction, but how do you do this for the nuclear requiremen…”
Kairos secured an NRC nuclear construction permit in just over two years
“So fast forward, we got a construction permit from the Aggregatory Commission. First advanced reactor, you know, to submit and get, we did it in just over two years.”
Google buys clean energy attributes while TVA gets electricity from Kairos
“We have a really exciting announcement that we just had with TVA and Google that, that kind of puts together a novel commercial arrangement around this new evolution of the plant itself, and so it really is kind of a novel structure that allows all three parti…”
Kairos plans to deliver 500 MW to Google across seven nuclear reactors
“When we look at the 500 megawatt total capacity for Google we're looking at kind of the 50 megawatts, ah, on the Hermes II side, and then we're looking at basically six more reactors to deliver at 75 megawatts each as kind of an evolution of that that initial …”
Kairos aims to cut reactor capital costs by 50% across seven builds
“We see the ability in, in just those first essentially seven reactors, like dramatically bringing down the capital costs you know, 40, 50% is possible, and then we're staged for the second half of the twenty-thirties to scale from there”