Dec 12, 2023 · 53m · green-blueprint
Making sense of advanced nuclear’s stumbles
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In this episode of The Carbon Copy, host Stephen Lacey and energy experts Eric Wesoff and Laura Pierpoint analyze the economic, regulatory, and supply chain hurdles facing the advanced nuclear sector. They evaluate recent high-profile startup stumbles against ambitious global decarbonization targets, debating whether the industry should prioritize novel modular designs or standardize proven gigawatt-scale reactors.
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 4.6 Guest teaching 4.0 Guest disagreement 2.7 The hosts pushing back 1.2
speaking balance: gold is the hosts, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 35:10 SMRs dismissively framed as PR fix
Eric bluntly dismisses small modular reactors as an engineering band-aid for core financial and public relations issues that engineering cannot resolve.
Hardest push from the hosts ▶ 12:22 Challenging NuScale's cost escalation driversStephen challenges the idea that startups fail on technology alone, citing the Breakthrough Institute report on regulatory size increases and commodity price swings.
Biggest teaching moment ▶ 21:25 Exposing the Russian HALEU dependencyEric educates the room on the critical bottleneck in high-assay low-enriched uranium, pointing out that almost all commercial supply currently originates from Russia's Tenex.
The host holds their own ▶ 48:50 Stephen's analysis of NEVI EV charger bottlenecksStephen demonstrates detailed reporting expertise by detailing how zero chargers have been built under the IRA's multi-billion dollar NEVI program due to strict state standard requirements.
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 |
|---|---|---|---|---|---|---|
| Canary Media Support and Donation Appeal | 3 | 0 | 1 | 0 | Host Stephen Lacey opens with an appeal for donations and a lighthearted COP28 joke before laying out the overarching premise regarding stagnant Western nuclear capacity versus rapid renewables growth. The segment is primarily an introductory framing monologue with minimal interactive tension. | |
| Defining Advanced Nuclear and Venture Capital Expectations | 4 | 5 | 3 | 1 | Stephen asks for precise definitions of advanced nuclear and venture dynamics, prompting Laura to deliver a thorough technical breakdown of light water reactors versus novel fuels and coolants. Eric adds sharp skepticism regarding software tech billionaires assuming nuclear fission can be disrupted like code. | |
| High-Profile Stumbles: NuScale, X-Energy, and Oklo | 6 | 4 | 3 | 2 | Stephen introduces recent stumbles across NuScale, X-energy, and Oklo, citing the Breakthrough Institute's analysis on commodity cost escalations. Eric pushes back on conflating the three cases, citing Admiral Rickover's classic distinction between paper reactors and actual construction projects. | |
| Construction Economics, Plant Vogtle, and Capital Market Constraints | 6 | 5 | 2 | 1 | Eric highlights that 50% of nuclear capital expenditure stems from civil works and reinforced concrete rather than nuclear equipment, drawing parallels to residential solar balance-of-system costs. Laura validates this by discussing the severe domestic shortage of practical construction engineers observed at Plant Vogtle. | |
| The HALEU Fuel Supply Bottleneck and Domestic Centrifuges | 3 | 6 | 4 | 1 | Eric passionately details the severe supply vulnerability in High-Assay Low-Enriched Uranium (HALEU), highlighting heavy U.S. reliance on Russia's Tenex. Laura counters with optimistic context, explaining Centrus Energy's demonstration cascade coming online ahead of schedule with DOE support. | |
| Positive Indicators: Industrial Heat, Pink Hydrogen, and Oklo's Status | 4 | 3 | 2 | 1 | Stephen asks for positive developments heading into year-end, leading Laura to cite industrial heat applications and Constellation's pink hydrogen electrolyzer. Laura also clarifies that Oklo's military contract loss was a procedural DoD foul rather than a fatal technological failure. | |
| Global COP Commitments to Triple Nuclear by 2050 | 5 | 4 | 3 | 1 | Stephen introduces the COP28 pledge to triple global nuclear capacity by 2050, querying its viability. Eric argues that only non-signatory China possesses the industrial momentum to hit such scaling metrics, while Laura emphasizes the chicken-and-egg problem plaguing order books in the West. | |
| Structural Differences Between Western and Asian Reactor Construction | 5 | 5 | 4 | 2 | Eric breaks down the structural governance gap between integrated Asian EPC developers and the fragmented, misaligned contracting incentives in the U.S. He provocatively declares small modular reactors an engineering solution to a financial and PR problem, while Laura suggests shipyard modular construction could mitigate megaproject pitfalls. | |
| U.S. Policy Drivers, Sentiment Shifts, and Commercial Timelines | 5 | 4 | 2 | 1 | The panel assesses federal policy tailwinds from the IRA, BIL, and Loan Programs Office alongside shifting public sentiment. Laura notes surprising pro-nuclear polling for Diablo Canyon and highlights Miss America Grace Stanky promoting nuclear engineering to younger audiences. | |
| The Contrarian Case for Standardized Gigawatt Reactors | 4 | 5 | 4 | 1 | Eric presents a contrarian argument advocating for standardizing existing gigawatt-scale AP1000 reactors instead of chasing unproven advanced concepts. Laura agrees on raw economics and international grid requirements, while defending long-term optionality for specialized advanced designs. | |
| The Forecast: Solar Surge, Climate Momentum, and EV Charging Bottlenecks | 6 | 3 | 2 | 2 | In the forecast round, Eric contrasts surging global solar additions of over 1 GW per day against stagnant nuclear additions. Stephen brings up his own deep dive into NEVI funding delays and reliability hurdles in national EV charging infrastructure buildouts. |
Statements from this episode (22)
Wesoff: Most 'new' advanced reactor designs date back 60 years
“Many of the new advanced reactor designs are not exactly new. They date back to 60 years to the Manhattan Project and the early development of nuclear. So things like fast breeder reactors, gas-cooled reactors. We have experience with all of these for many, ma…”
Wesoff: Tech billionaires trying to disrupt nuclear with software will fail
“We have these hordes of software developer billionaires thinking that they can disrupt the nuclear industry just like you can disrupt the software industry, and I think they're going to be sadly disappointed very soon.”
Pierpoint: Choosing nuclear as an entrepreneur is 'literally choosing hard mode'
“All that said, this is a really hard industry, and I know we're going to get into this, but you know, if you're going to be an entrepreneur, choosing nuclear as your technology is literally choosing hard mode.”
Lacey: NuScale withdrew Utah municipal utility deal over escalating costs
“New Scale Power, the sixteen-year-old designer of small modular reactors, withdrew a critical deal with the Utah municipal utility in November, citing escalating costs.”
Wesoff: All advanced nuclear reactor designs are untested paper reactors
“All of the reactors in the advanced reactor population are paper reactors. We haven't built them. We haven't tested them.”
Wesoff: NuScale SMR footprints exceed traditional 1.2 gigawatt reactor sizes
“The modular reactor from NuScale is 76 feet tall, so that's not exact. If you're thinking it's the size of a bread box, it's not. It's 76 feet tall, and when you're building a twelve-pack of these modular NuScale reactors, the size of the civil works that you …”
Wesoff: Only 20-25% of nuclear plant costs come from equipment
“Only 25%, 20 to 25% of the cost of a nuclear site stems from the actual equipment itself, the reactor vessel, the fuel rods. 50% of the cost of a nuclear project is due to the cost of installation, the cost of building reinforced concrete and the steel that's …”
Wesoff: DOE is funding too many advanced reactor designs instead of standardizing
“There are too many advanced reactor designs being looked at by the DOE and the industry. That's an enormous problem right there. We need to pick a design and stop this first-of-a-kind nonsense.”
Wesoff: Russia supplies 46% of world enriched uranium; US buys $1B annually
“Russia supplies 46% of the enriched uranium in the world, and we buy about a billion dollars worth, the United States buys about a billion dollars worth of enriched uranium from Russia”
Wesoff: China has 22 nuclear plants under construction and 70 planned
“China has 22 nuclear plants under construction today. 22. And 70 planned.”
Wesoff: South Korea aligns nuclear construction incentives better than the U.S.
“In places like, say, South, South Korea, the folks who design The nuclear plant and build the nuclear plant are also the same people, in many cases, are the same people who operate and maintain the nuclear plant, and all of their incentives are aligned, and th…”
Wesoff: SMRs are engineering solutions misapplied to financial and PR problems
“Small reactors, SMRs, are a nuclear engineering solution to a financial problem. We need a financial solution to this financial problem. Small modular reactors are a nuclear engineering, engineering solution to a PR problem. We need a PR solution to that, not …”
Pierpoint: Advanced nuclear developers upsized reactor designs to 300MW+
“That's one of the big reasons that you saw this shift from like a whole bunch of folks that were really thinking like sub hundred megawatt reactor designs all the way up to 300 megawatts, and in some cases much higher than that.”
Wesoff: Nuclear industry has unprecedented financial and government backing
“The nuclear industry has never had more financial or spiritual support from the U.S. Government or our populace whether it be the IRA's investment tax credit and production tax credits that are aimed towards the nuclear industry, whether it be the Bipartisan i…”
Pierpoint: 58% of Californians support keeping Diablo Canyon plant open
“I noted that this year, polling in my home state of California showed that 58% of Californians support keeping Diablo Canyon nuclear plant open, and that is very surprising. This has been a pretty staunchly anti-nuclear state for decades, I think, as folks wel…”
Wesoff: Turkey Point has approved licenses for two unbuilt reactors
“Florida, Turkey Point in Florida is, is, has a license granted for two new reactors, but they're not building them because they're flinchy about the cost.”
Wesoff: US nuclear capacity factor grew from 50-60% to over 90%
“We've gone from, you know, the nuclear reactor fleet has this amazing on-time capacity factor. It's at over 90%. It's 92% or something of that nature. It hasn't always been like that. In fact, 30 years ago or 4030 years ago, it was at 50 or 60%.”
Wesoff: Nuclear industry should build AP1000 reactors over novel designs
“We should be figuring out how to build AP 1000 instead of flailing around trying to find silver bullet designs that will rescue this industry.”
Wesoff: Global solar additions will exceed 400 gigawatts in 2023
“There's been some recent stories about what the global total for solar will be in twenty-twenty-three, and the number's over 400 gigawatts”
Wesoff: Global grid added only 4 gigawatts of nuclear in 2023
“The nuclear industry grid-connected About four gigawatts of nuclear to the grid this year.”
Wesoff: Ultra-cheap solar and storage may make advanced nuclear concepts obsolete
“We're gonna have amazingly cheap, abundant solar. Combined with storage, we may not need all of these advanced energy ideas.”
Lacey: Zero EV chargers built yet from $7.5B federal infrastructure program
“The Inflation Reduction Act allocated seven and a half billion dollars to building out a national EV charger network in this country, and two billion of those funds have been allocated to states, but there have been zero chargers built as part of those funds, …”