Country Build Pipeline
Countries tracked
14
5 regions
Operating reactors
317
across 14 countries
Under construction
57
104 additional planned
GW pipeline to 2035
257
credible additions
Asia(4)
Europe(5)
Americas(1)
MENA(2)
FSU(2)
Country-level civilian commercial nuclear power build pipeline. Op = operating, UC = under construction, Plan = formally announced or PRIS-listed planned. GW pipeline to 2035 reflects credible incremental additions (±25% accuracy). Russian and Chinese state operators flagged restricted (analogous to Defense sector treatment of AVIC and NORINCO). Civilian power only: naval, weapons-grade, and medical isotope reactors out of scope. Sources: IAEA PRIS, World Nuclear Association country profiles, project owner press releases.
US Policy Timeline
Total events
14
Dec 2020 to May 2026
Legislation
6
DOE programs
5
Executive
2
Aggregate funding
$50B
authorized + appropriated
Energy Act of 2020 + Advanced Reactor Demonstration Program (ARDP)
US Congress (signed Trump as Division Z of Consolidated Appropriations Act 2021)
First major nuclear-policy bill in 15 years. Authorized ARDP at DOE Office of Nuclear Energy (TerraPower Natrium and X-energy Xe-100 selected Oct 2020 as ARDP demonstration awardees ~$3.2B combined cost-share). Authorized Versatile Test Reactor at INL (later canceled). Established research and development pipeline through 2030.
American Innovation and Manufacturing Act (AIM Act)
US Congress (signed Trump as part of Consolidated Appropriations Act 2021)
While headline target was HFC phasedown, the AIM Act included nuclear-relevant clean-technology R&D authorization that supports advanced reactor development pathways. Listed for completeness; nuclear impact is indirect.
Bipartisan Infrastructure Law (Infrastructure Investment and Jobs Act): Civil Nuclear Credit Program
US Congress (signed Biden)
Established the $6B Civil Nuclear Credit Program at DOE to support continued operation of merchant nuclear reactors at risk of premature retirement. First award to Diablo Canyon (PG&E) Nov 2022. Extended Mar 2024.
Inflation Reduction Act: Section 45U Nuclear PTC + Section 45Y/48E Technology-Neutral Credits
US Congress (signed Biden)
Section 45U creates Production Tax Credit of up to $15/MWh for existing nuclear (gross-receipts trigger phases credit out above $25/MWh; effective for 2024-2032). Sections 45Y (PTC successor) and 48E (ITC successor) are technology-neutral and apply to new nuclear placed in service after Dec 31 2024. IRS guidance Jul 2024 confirmed advanced reactors eligible. ADVANCE Act 2024 reaffirmed nuclear is qualifying technology.
Diablo Canyon DOE LPO conditional commitment + California state extension legislation
DOE Loan Programs Office + California legislature (SB 846)
DOE awarded conditional Civil Nuclear Credit ~$1.1B to PG&E for Diablo Canyon Nov 2022 (formal first round). California SB 846 (Sep 2022) extended Diablo Canyon operation through 2030 (originally scheduled retirement 2024 + 2025). Mar 2024 Civil Nuclear Credit extension and $1.4B in additional support.
HALEU Consortium awards (~$700M)
DOE Office of Nuclear Energy
Conditional commitments to five HALEU producers: Centrus ($150M task order on $2B IDIQ), Urenco USA ($175M), Orano USA ($175M), BWXT ($175M downblending), ASP Isotopes ($75M laser-based pilot). Targets 20-25 MTU per year HALEU capacity by 2030. Critical for SMR FOAK timing because every advanced reactor needs HALEU (5-19.75% enriched uranium).
NRIC DOME microreactor test bed selections (Radiant + Westinghouse)
DOE National Reactor Innovation Center
DOE selected Radiant Nuclear (Kaleidos) and Westinghouse (eVinci) for fueled-experiment demonstrations at INL DOME test bed. Radiant target 2026 first fueled test; Westinghouse 2027. First privately-developed microreactors to operate in the US since 1960s.
Prohibiting Russian Uranium Imports Act (Public Law 118-62)
US Congress (signed Biden)
Signed May 13 2024 as Public Law 118-62. Effective Aug 11 2024, prohibits imports of unirradiated LEU and natural uranium from Russia. DOE waiver authority through 2027 for utilities without alternative supply (anti-cliff). Statutory termination Dec 31 2040. Companion appropriation: $2.72B authorized for HALEU + LEU domestic capacity build-out (signed earlier as part of 2024 supplemental funding bill). US reactors source ~14% of LEU from Russia (2023 baseline); 5-10 year transition needed to fully replace.
Accelerating Deployment of Versatile, Advanced Nuclear for Clean Energy Act (ADVANCE Act of 2024)
US Congress (signed Biden as Title V of Fire Grants and Safety Act)
Signed Jul 9 2024 as Public Law 118-67. Most significant NRC reform since Atomic Energy Act of 1954. Restructures NRC fee model for advanced reactors (reduces FOAK applicant cost). Authorizes Part 53 risk-informed licensing framework. Establishes prizes for first-of-kind advanced reactor deployments. Modernizes NRC mission statement to include enabling rather than only regulating new reactor deployment. Authorizes nuclear export support.
DOE LPO Holtec Palisades conditional loan guarantee
DOE Loan Programs Office
$1.52B conditional commitment to Holtec for Palisades nuclear plant restart Michigan. First-ever restart of a permanently retired US commercial reactor. Also enables Holtec SMR-300 site preparation at the same campus. DOE LPO largest single nuclear-power commitment 2024.
Trump Executive Orders on Nuclear Energy (4-EO package)
President Trump
Four-EO package: (1) Reform NRC to enable advanced reactor licensing within 18 months (vs current ~5 year average); (2) Direct DOE to designate critical-path advanced reactor projects; (3) Establish federal-land siting framework for AI-data-center-coupled reactors; (4) Reform fuel-cycle regulations to expedite HALEU deployment. Administration target: 4x US nuclear capacity (~400 GW) by 2050. Specific appropriations not included in EOs; depend on FY2026 budget process.
DOE Reactor Pilot Program selections (11 projects, target criticality by Jul 4 2026)
DOE Office of Nuclear Energy
Request for applications issued Jun 18 2025; DOE selected 11 projects from 10 companies on Aug 12 2025: Aalo Atomics, Antares Nuclear, Atomic Alchemy, Deep Fission, Last Energy, Natura Resources, Oklo, Radiant Industries, Terrestrial Energy, and Valar Atomics. Reactors authorized solely by DOE under Atomic Energy Act authority, bypassing NRC. Goal: construct, operate, and achieve criticality of at least three test reactors by Jul 4 2026 (US 250th anniversary). PDSA approvals issued through Q1 2026: Radiant (Feb 2026), Valar (Mar 2026), Aalo (Mar 2026).
DOE LPO Crane Clean Energy Center loan closed ($1B)
DOE LPO + Constellation Energy
DOE LPO closed a $1B loan to Constellation Energy Generation, LLC to help finance the Crane Clean Energy Center (TMI-1) restart, Londonderry Township, PA. First project to receive a concurrent conditional commitment and financial close under the Trump administration. Tied to Microsoft 20-year PPA Sep 2024. Pending NRC licensing approvals, the 835 MW reactor would supply PJM baseload.
NRC Part 53 final rule (risk-informed advanced reactor licensing)
Nuclear Regulatory Commission
Risk-informed performance-based licensing framework for advanced reactors. Originally proposed 2017; NRC Commissioners voted to finalize Part 53 on Mar 26 2026, published in Federal Register Mar 30 2026, effective Apr 29 2026. Delivered more than a year ahead of NEIMA 2019 end-of-2027 statutory deadline. ADVANCE Act 2024 reinforced implementation. Key for non-light-water reactor designs (TerraPower Natrium, X-energy Xe-100, Kairos KP-FHR, USNC MMR). Runs in parallel with existing 10 CFR Part 50/52 framework as an optional path.
US civilian nuclear power policy actions Dec 2020 through May 2026: federal legislation, executive orders, DOE programs, NRC rulemakings, and major DOE LPO conditional commitments. Project Pele (DoD-only mobile microreactor) excluded per civilian-power scope. Trump May 2025 EO 4-pack text published; specific funding implementation pending FY2026 budget. NRC Part 53 final rule slipping per NRC Q1 2026 docket update. Sources: Congress.gov, DOE LPO portfolio, NRC rulemaking pages, White House presidential actions.
US State Moratoriums
Lifted since 2016
5
WI, KY, WV, CT, IL
Currently active
11
explicit + de facto bans
Under review
3
MN, NY, MA
Reactors in active-ban states
8
grandfathered, no new builds
Trend. The trend since 2016 is unambiguously toward lifting (Wisconsin 2016, Kentucky 2017, West Virginia 2022, Connecticut 2022, Illinois 2023). California, New York, Hawaii, Vermont, Maine bans remain entrenched. Minnesota is currently active but has the most viable repeal path in 2026-2027 (HF 247 / SF 132 reintroduction). Total rows: 16 (11 active + 5 lifted). Minnesota counts as active here and ALSO appears in pendingLegislationStates.
Lifted (5)5 states
Pending repeal (1)1 state
Active or de facto10 states
US state-level moratoriums and restrictions on new civilian commercial nuclear power plant construction. 5 lifts since 2016 (Wisconsin 2016, Kentucky 2017, West Virginia 2022, Connecticut 2022, Illinois 2023); 12 states maintain explicit or de facto bans; Minnesota HF 247 and SF 132 (Jan 2025) is the most-likely 2026 lift. California, New York, Hawaii, Vermont, and Maine bans are entrenched; Hawaii requires constitutional amendment. Sources: NCSL state energy policies, Third Way state-by-state map, individual state statute citations.
Build Cost vs Construction Time
Western FOAK avg
$12.6K
per kW overnight
Asian fleet avg
$3.4K
per kW overnight
Western FOAK time
175
months avg
Asian fleet time
71
months avg
Cost gap. Western FOAK overnight cost is ~3.8x Asian standardized fleet. Western construction time is ~2.5x Asian. Combined this is the central economic problem of new Western nuclear build.
Drivers of the gap
- Standardization: Asian fleets build same design 10+ times consecutively. Western FOAK projects are first-of-kind in their country.
- Workforce continuity: Korea + China retained nuclear engineering, manufacturing, and craft workforce. Western workforce regenerated post-30-year hiatus.
- Supply chain: Asian projects use domestic NSSS forging (Doosan, China First Heavy Industries); Western projects depend on consolidated supply (Japan Steel Works ultra-large forgings, single-source).
- Financing: Asian projects use state-backed equity + below-market debt (KEPCO sovereign, Chinese state-owned banks). Western projects use commercial finance with high interest during construction.
- Regulation: Asian standardized designs receive single-design certification with site-specific delta. NRC and ONR (UK) still require site-by-site re-litigation.
Western response strategies
- SMR standardization: NuScale, BWRX-300, AP300 each target ~10-20 unit fleet to amortize FOAK premium across deployment.
- ADVANCE Act 2024: NRC fee restructuring + Part 53 risk-informed framework target $50-100M per FOAK applicant cost reduction.
- Restart-class projects: Palisades, TMI-1 / Crane CEC, Duane Arnold leverage existing infrastructure to bypass full FOAK premium.
- DOE LPO: $1.52B Holtec Palisades (closed Sep 2024) + ~$1.1B Diablo Canyon + $1B Constellation Crane CEC (closed Nov 18 2025, first concurrent conditional+close under Trump administration) target capital-cost reduction via low-rate federal debt.
7 large reactor projects plotted by overnight $/kW capital cost vs total construction time. Bubble size scales with project capacity (MWe). Western FOAK projects (Vogtle, Hinkley, Olkiluoto, Flamanville) cluster upper-right at $7.5K to $18K per kW and 130 to 211 months. Asian standardized fleet (Hualong One, APR1400 domestic) clusters lower-left at $3K to $3.7K per kW and 66 to 75 months. Barakah (Korean APR1400 export) sits as the midpoint reference. Sources: World Nuclear Association nuclear power economics, OECD NEA projected costs 2020, Southern Company, EDF, TVO, ENEC, CNNC, KHNP press releases.
Sector Bull vs Bear Synthesis
Editor synthesis. The civilian nuclear sector is in its strongest position since the 1970s. Hyperscaler demand provides structural offtake. ADVANCE Act + Trump EOs provide regulatory tailwind. Public opinion has decisively shifted (56% favor vs 43% a decade ago). State moratoriums are unwinding. Restart-class projects (Palisades, TMI-1, Duane Arnold) are the high-probability near-term upside. SMR FOAK in 2029-2031 is plausible but not certain; one of the OPG Darlington BWRX-300, Holtec SMR-300 Palisades, or TVA Clinch River BWRX-300 reaching commercial operation by 2031 is the highest-probability bull-case event. The bear case concentrates on three risks: (1) cost overrun pattern repeating at SMR FOAK (Vogtle/Hinkley/Olkiluoto baseline); (2) HALEU + Western fuel-cycle capacity lagging Russian phase-out timeline; (3) China + Russia 4-5x cost gap remaining structural. Editor judgment: 2-4 GW of new US nuclear capacity (large-restart + SMR FOAK combined) operating by 2031 is plausible. Transformative scale (100+ GW additions) requires SMR fleet deployment 2032-2040 conditional on FOAK success. Fusion remains a separate thesis with longer timelines (see nu-fusion-bull-vs-bear.json for the 10-dimension fusion-specific synthesis). The single highest-leverage development would be 2-3 SMR FOAKs hitting target cost AND commercial date simultaneously by 2031.
Hyperscaler pull-through
Bull case
$50B+ committed via PPA + equity since Mar 2024 across Microsoft + Constellation TMI Sep 2024 (20-yr PPA), Amazon + Talen Susquehanna Mar 2024 (BTM PPA, restructured to network service 2025), Amazon + X-energy + Energy Northwest Oct 2024, Google + Kairos Oct 2024 (4 plants 500 MW), Meta + Constellation Jun 2025. ALL hyperscalers now have at least one nuclear bet. Constellation FY2025 EPS guidance reflects PPA premium pricing.
Bear case
Most are MoU or framework agreements, not binding PPA. AWS Talen FERC ISA dispute Nov 2024 created precedent risk for behind-the-meter (BTM) economics. Microsoft pause on AI capex Mar 2025 raised questions about deal-flow durability. SMR FOAK delivery dates (post-2030 mostly) create timing mismatch with hyperscaler 2026-2028 capacity needs.
Inflection to watch
Whether AWS Talen network-service restructuring sets binding precedent for BTM nuclear. Whether 2026 sees ten-plus binding PPA announcements vs predominantly MoU.
SMR FOAK timing
Bull case
ADVANCE Act 2024 + NRC Part 53 final rule (Mar 26 2026, effective Apr 29 2026) reduce regulatory drag ahead of NEIMA end-of-2027 deadline. GE Hitachi BWRX-300 OPG Darlington Unit 1 first criticality target 2028 (CNSC construction license Apr 2025). Holtec SMR-300 Palisades site $1.52B DOE LPO closed Sep 2024. Multiple developers (NuScale, Westinghouse AP300, Kairos, X-energy) in active permitting. DOE Pilot Program Aug 12 2025 selected 11 projects from 10 companies targeting >=3 reactors criticality on DOE land by Jul 4 2026; 3 PDSA approvals through Q1 2026 (Radiant Feb, Valar Mar, Aalo Mar).
Bear case
NuScale UAMPS cancellation Nov 2023 set the pattern: cost overruns kill FOAK. Only 1-2 SMRs likely to reach commercial FOAK by 2030. DOE Pilot Program Jul 4 2026 criticality target widely judged aspirational. HALEU supply lag, supply-chain bottlenecks, and untested standardized-fleet economics still uncertain.
Inflection to watch
OPG Darlington BWRX-300 commercial operation 2029 (currently global FOAK lead). Whether any developer demonstrates commercial operation by 2030 vs slipping to 2032+. Whether DOE Pilot Program produces actual fueled criticality by Jul 4 2026 vs pre-fuel tests.
HALEU supply
Bull case
$700M DOE Consortium Jan 2024 + companion $2.72B PRUIA appropriation. Centrus AC100M cascade operational since Oct 2023; first 16-cascade plant target ~6,000 kg/yr. Urenco USA Eunice + Orano USA + BWXT downblending + ASP Isotopes laser pilot. Western HALEU supply 20-25 MTU per year by 2030 per DOE liftoff.
Bear case
Demand from advanced reactor fleet ~150 MT/yr by 2035 vs ~10-20 MT/yr Western capacity by 2030. SMR FOAK developers (TerraPower, X-energy, Kairos, Oklo, USNC) all need HALEU and have no Russian alternative post-PRUIA. Centrus single-cascade output is sub-1 MT/yr; 16-cascade scale-up requires capital + DOE task orders that have not all been issued. Russian-imported HALEU was the de facto FOAK supply path; it is being eliminated faster than Western capacity ramps.
Inflection to watch
Centrus 16-cascade Phase 2 production decision (target 2026-2027). Whether Urenco USA + Orano USA HALEU plants reach commissioning by 2028. DOE LPO HALEU loan guarantee announcements 2026-2027.
Uranium price
Bull case
Spot price ~$80/lb U3O8 Q1 2026 well above $30/lb 2010s baseline. Sanctions force Western inventory rebuild (utilities pre-buying to manage PRUIA transition). New supply lead time 7-10 years for greenfield mines (NexGen Arrow, Denison Wheeler River, Cameco McArthur River expansion). Long-term contract price ~$70/lb provides revenue visibility for Cameco, Kazatomprom, NexGen.
Bear case
Secondary supply (DOE inventory release, Sprott Physical Uranium Trust pool, military downblend) can deflate spot. Kazatomprom production guidance for 2026 +20% as ISL recovery improves. Spot peaked above $100/lb Jan 2024 then retreated to $60-80/lb range Q4 2025 to Q1 2026; correction pattern suggests structural ceiling. Most uranium contracts are long-term and shielded from spot-price drama.
Inflection to watch
Whether spot breaks $100/lb in 2026 (would imply structural undersupply confirmed). Kazatomprom production guidance updates. Uranium ETF (URA, URNM) flows as proxy for institutional positioning.
Construction cost
Bull case
Standardized SMR fleet build-out (BWRX-300, AP300, NuScale VOYGR) targets ~$5-7K/kW once Nth-of-kind achieved (vs Vogtle ~$15.6K/kW). Restart-class projects (Palisades, TMI-1, Duane Arnold) leverage existing infrastructure for ~$1-2K/kW effective restart cost. ADVANCE Act + Part 53 cut FOAK regulatory burden. Korean APR1000 export ($/kW ~$5K based on Czech tender) demonstrates Western-export-tier cost path.
Bear case
Vogtle pattern continues: Hinkley Point C ~$18K/kW + 13 yr, Olkiluoto $7.5K/kW + 18 yr. NuScale UAMPS UAMPS-FOAK $9.3K/kW estimate (Nov 2023 pre-cancellation) was already 50%+ above original. SMR FOAK premium vs Nth-of-kind has not been demonstrated for any developer in commercial operation. Western workforce, supply-chain, and project-management gaps persist.
Inflection to watch
OPG Darlington BWRX-300 final commissioned cost (currently target ~CAD 7.7B for 4 units; FOAK-only cost will be ~CAD 4-5B). KEPCO Czech Dukovany 5+6 final commissioned cost vs $18B contract value. TerraPower Natrium FOAK final cost vs $4B 2020 estimate.
Regulatory pace
Bull case
ADVANCE Act 2024 modernizes NRC fee structure and licensing. NRC Part 53 final rule landed Mar 26 2026 (effective Apr 29 2026), more than a year ahead of NEIMA statutory deadline. Trump May 23 2025 EOs target 18-month NRC review timelines (vs current ~5 yr average). DOE Pilot Program operates outside NRC framework using DOE-authorization regime for accelerated demonstration. CNSC (Canada) construction permit Darlington BWRX-300 Apr 2025 demonstrates faster non-US framework.
Bear case
NRC culture takes decades to change. Part 53 final rule arrived Mar 2026 (later than original 2025-Q3 target) and effective Apr 2026; first applications cannot be filed before then. ADVANCE Act fee restructuring implementation rules still in development. Trump EO 18-month target widely judged unrealistic without statutory change. NuScale 5-year SDA precedent suggests inertia. Non-LWR designs (Natrium, Xe-100, KP-FHR, Aurora) face longer review than LWR-derivative SMRs (BWRX-300, AP300, SMR-300).
Inflection to watch
NRC Part 53 final rule publication. First non-LWR design construction permit decision (TerraPower Natrium most-likely candidate, target 2027). NRC implementation of ADVANCE Act fee restructuring.
Fusion timing
Cross-reference: Tab 5 fusion synthesisBull case
NIF Q_laser > 1 Dec 2022 + Feb 2024 yield records. SPARC first plasma target 2027. Helion-Microsoft 50 MW PPA 2028 target. NRC Apr 2023 fusion regulatory framework (Part 30, NOT Part 50/52) reduces pre-construction licensing burden by 5-10 years vs fission. Pacific Fusion + Marvel Fusion + Xcimer building commercial ICF drivers. UK STEP 2040 commercial prototype.
Bear case
ITER first plasma slipped to 2034-2035 (Jul 2024 baseline revision). Median expert view (FIA 2024 survey) commercial fusion 2040-2050+. NIF Q_wall-plug ~0.01 (commercial requires Q_wall-plug > ~3). Closed-cycle tritium breeding never demonstrated at scale. Helion 2028 timeline widely judged optimistic by physics community. Most fusion developers will not reach FOAK before 2035.
Inflection to watch
SPARC first plasma 2027 + Q_thermal > 1 demonstration. Helion Polaris electricity demo (revised target 2025-2027). ITER first plasma 2035. See nu-fusion-bull-vs-bear.json for the full 10-dimension fusion-specific synthesis with Q_wall-plug, ICF vs MCF, aneutronic fuel viability dimensions.
Russia exposure
Bull case
Prohibiting Russian Uranium Imports Act May 2024 + companion $2.72B HALEU + LEU appropriation force Western capacity rebuild. Westinghouse VVER-fuel substitution program serves Czech Dukovany, Bulgarian Kozloduy, Finnish Loviisa 2024-2026. ConverDyn Metropolis restart Oct 2023 (~7,000 tU/yr conversion). Urenco USA + Orano enrichment expansions on track for 2027-2030.
Bear case
4-10 year transition; Western enrichment + conversion cannot replace Rosatom 46% SWU + 20% UF6 share before 2028-2030. Many US utilities continue petitioning DOE for waiver extensions (39 waivers granted 2024). Hungary Paks fuel still Rosatom. Rosatom export reactor pipeline (~70% of construction outside China) cannot be displaced; competing Western offerings lack 80-90% state-credit terms. China continues VVER-1200 imports (Tianwan 7+8, Xudapu 3+4).
Inflection to watch
DOE waiver count trajectory 2026-2028. Centrus + Urenco USA + Orano cumulative SWU additions vs Rosatom share. Westinghouse VVER-fuel program completion by 2026 (Czech, Bulgarian, Finnish targets).
Public opinion
Bull case
Gallup 2024: 56% US adults favor nuclear power, up from 43% in 2016 and the highest since polling began 1994. Pew Research Aug 2024: 56% favor expanding nuclear. AP-NORC May 2024: 41% support more nuclear plants vs 21% oppose. Younger demographics (18-29) increasingly supportive (53% 2024 vs 39% 2016). Hyperscaler clean-energy framing has shifted media tone. State moratorium lifts in IL + CT + WV reflect underlying voter shift.
Bear case
Single accident vulnerability (Fukushima 2011 destroyed Japan + German nuclear support overnight; Three Mile Island 1979 effectively ended US new-build for 30 years). Anti-nuclear groups (NRDC, UCS, Greenpeace) continue active opposition to specific projects. State-level NIMBY persistent in coastal California + New York + Massachusetts. International polling more divided (Germany permanently anti; Italy historically anti; recent reversals in Sweden, Belgium, Netherlands).
Inflection to watch
Gallup + Pew tracking polls 2026-2027. State-level referendum or polling in Maine, Oregon, Vermont. Any nuclear safety incident anywhere in world (~once-per-decade pattern would be first since Fukushima 2011).
China + Russia competition
Bull case
West rebuilding via Westinghouse AP1000 (Poland, Bulgaria), KEPCO APR1000 (Czech, UAE, potentially Saudi), EDF EPR (UK, India, Saudi). Korean APR1400 export FOAK (Barakah) demonstrates Western-aligned vendor can deliver on time and budget. KHNP-Westinghouse Jan 2025 IP agreement settles long-running export-rights dispute, unblocking joint pursuits. ADVANCE Act includes nuclear export support; EXIM + DFC scoping role.
Bear case
China cost ~$3K/kW + 6 yr build vs Western FOAK $12-18K/kW + 13-17 yr is 4-5x gap unlikely to close before 2035. China + Russia state-credit terms (80-90% financing) unmatched by Western EXIM. Rosatom 70% of non-China reactor construction; Hualong One + CAP1400 + ACPR1000 dominate Asian + Middle Eastern + African markets. China target 150-200 GW domestic by 2035 will create vendor scale advantage Western OEMs cannot match.
Inflection to watch
KEPCO Czech Dukovany 5+6 commissioned cost + schedule vs $18B + 2036 target. AP1000 Poland Choczewo financial close (target 2026). Saudi tender outcome (Westinghouse vs KEPCO vs CNNC vs Rosatom).
State moratoriums
Bull case
5 lifts since 2016: Wisconsin 2016, Kentucky 2017, West Virginia 2022, Connecticut 2022, Illinois 2023. Minnesota HF 247 + SF 132 introduced Jan 2025 with Xcel + Chamber support; reintroduction 2026. New York Hochul Sep 2024 advanced reactor study. Massachusetts Aug 2024 SMR feasibility commissioned. Trend is unambiguously toward lifting in coal + utility-supportive states.
Bear case
California + New York + Hawaii + Vermont + Maine constitutional or referendum-conditioned bans remain entrenched. Hawaii two-thirds legislative vote requirement is structurally unmovable. Recent lifts (IL, CT) were conditional (SMR-only or existing-site reuse). 12 states still maintain explicit or de facto bans. Hochul + Healey administrations supportive in tone but no formal lift legislation.
Inflection to watch
Minnesota 2026 legislative session HF 247 / SF 132 outcome. New York or Massachusetts formal SMR-permitting legislation 2026-2027. Any constitutional referendum effort in California or Maine (no current effort).
critical unknowns6 open questions
Will any SMR developer reach commercial operation by 2030?
Why it matters: Hyperscaler PPA delivery commitments concentrate in 2028-2032. ARDP demonstration awards (TerraPower + X-energy) target 2030-2031 commercial. NuScale UAMPS Nov 2023 cancellation set the cautionary precedent. If only 1 of 8+ active SMR developers reaches commercial FOAK by 2030, the SMR thesis as a whole gets pushed back 3-5 years and Western nuclear renaissance shifts to large-reactor restart-class as the near-term story.
Earliest resolution: OPG Darlington BWRX-300 commercial operation 2029 (target). Holtec SMR-300 Palisades commercial 2030-2031. TVA Clinch River BWRX-300 commercial 2030-2031.
Can Western HALEU supply reach 20+ MTU per year by 2030?
Why it matters: Every advanced reactor (TerraPower Natrium, X-energy Xe-100, Kairos KP-FHR, Oklo Aurora, USNC MMR, BWXT BANR) requires HALEU. PRUIA eliminates Russian-imported HALEU as the de facto FOAK supply path. Centrus + Urenco USA + Orano + BWXT + ASP Isotopes targets aggregate to ~20 MTU per year by 2030 but no operator has yet demonstrated commercial-scale Western HALEU production. If Western HALEU lags, every advanced reactor FOAK slips by years.
Earliest resolution: Centrus 16-cascade Phase 2 production decision 2026-2027. Urenco USA + Orano USA HALEU plants commissioning 2027-2028.
Does the Vogtle pattern repeat at NuScale + TerraPower + Holtec FOAK?
Why it matters: Western FOAK builds have had cost overruns of 200-400% (Vogtle 14 to 35, Hinkley 18 to 47, Olkiluoto 3 to 11, Flamanville 3.3 to 13.2). SMR developers all promise standardization will avoid the FOAK pattern but no SMR has yet completed FOAK to compare against original estimate. If the first 2-3 SMR FOAKs come in at 2-3x original estimate, the SMR economic thesis breaks and nuclear renaissance returns to large-reactor restart-class only.
Earliest resolution: OPG Darlington BWRX-300 final commissioned cost vs target 2029. Holtec SMR-300 Palisades commissioning cost 2030-2031.
How quickly does hyperscaler MoU activity convert to binding PPA?
Why it matters: Of ~30 hyperscaler nuclear deals announced 2023-2026, only ~5-6 are binding executed PPA; majority are MoU or framework. AWS Talen FERC ISA dispute Nov 2024 created precedent risk for behind-the-meter (BTM) economics. If MoU-to-binding conversion rate stays below 30%, the $50B+ committed figure overstates actual demand. If conversion rate accelerates 2026-2027, hyperscaler demand becomes structural support for new build.
Earliest resolution: FERC final action on AWS Talen Susquehanna ISA. Whether 2026 produces 5-plus binding PPA conversions vs additional MoU.
Can Western supply chains rebuild to displace Rosatom 46% SWU + 20% UF6 share?
Why it matters: PRUIA phase-out runs through 2028 with DOE waivers through 2027. Centrus + Urenco USA + Orano combined adds ~5 MSWU per year by 2030 vs Rosatom 28 MSWU per year. Even with 100% utilization, Western capacity reaches ~38 MSWU per year by 2030 vs 60.5 MSWU per year global demand. If Russia exposure cannot be reduced below 25-30% by 2030, PRUIA waiver extensions become permanent and the geopolitical thesis weakens.
Earliest resolution: DOE waiver issuance count 2026-2028. Western enrichment expansion announcements + commissionings 2027-2030.
Does the Trump administration EO funding implementation match the 4x-by-2050 ambition?
Why it matters: Trump May 2025 EOs target 4x US nuclear capacity (~400 GW) by 2050 vs ~97 GW today. EOs do not include direct appropriations; depend on FY2026 + FY2027 budget process. ADVANCE Act 2024 provides regulatory framework but not deployment capital. If EO ambition is matched by 100B-plus appropriation commitments 2026-2028 (LPO expansion, ARDP successor, SMR fleet support), the bull case is materially stronger. If EOs remain unfunded, they are signaling without effect.
Earliest resolution: FY2026 budget process Q3 2025 to Q1 2026. NRC implementation rulemaking timelines on EO directives.
Sector-wide bull vs bear synthesis across 11 dimensions (hyperscaler pull-through, SMR FOAK timing, HALEU supply, uranium price, construction cost, regulatory pace, fusion timing, Russia exposure, public opinion, China and Russia competition, state moratoriums) plus 6 critical unknowns. The Fusion timing dimension cross-references the 10-dimension fusion-specific synthesis in Tab 5 (nu-fusion-bull-vs-bear.json). Editor judgment: 2 to 4 GW of new US nuclear capacity (large-restart plus SMR FOAK combined) operating by 2031 is plausible; transformative scale (100+ GW additions) requires SMR fleet deployment 2032 to 2040 conditional on FOAK success.