DEPLOYMENTCORE / U.S. NUCLEARDATA / 2026.08

Financing

What new nuclear costs by reactor class, what each tracked company still needs before a government or commercial contract can close, which contracting mechanisms are actually in use, and who underwrites the projects. As of 2026-08-11.

The cost ladder

Estimates, targets, and the few actuals, grouped by reactor class. Figures sit in different frames and years; they are shown, never averaged, summed, or converted across frames.

Microreactor · First markets are remote and defense loads priced against diesel, not the grid.

  • FOAK · 2024$325/MWhINL bottom-up estimate for a first-of-a-kind 20 MWt heat-pipe microreactor: ~$14,500/kWe overnight excluding fuel, ~$19,800/kWe with fuel, over $22,000/kWe total capital with interest. INL/RPT-24-80433 · captured copy, p. 61.Source ↗
  • NOAK · 2024~$120/MWhThe same INL model at factory production: ~$6,000/kWe overnight. INL/RPT-24-80433 · captured copy, p. 5.Source ↗
  • FOAK · 2019$0.14–0.41/kWhNEI's 2019 estimate for first-of-a-kind microreactors, overlapping the cost of remote diesel generation, the first market where micro FOAK economics close. NEI report, reported by NucNet.Source ↗
  • Contract value · 2022-06up to $300MThe Project Pele prototype: a 1.5 MWe transportable unit under a cost-type DOD contract whose value depends on options selected. A contract ceiling, not an outturn cost. DOD Strategic Capabilities Office award, reported by POWER.Source ↗
  • Company target · 2024-08$40–90/MWhOklo's expected levelized cost range for its plants, per its shareholder presentation. Company presentation, reported by Utility Dive.Source ↗
  • Company target · 2025-015–7¢/kWhDeep Fission and Endeavour's target for the 2 GW data-center framework. Partnership announcement, reported by World Nuclear News.Source ↗

Grid-scale SMR · Approved budgets and target prices exist; no U.S. unit has finished to test them.

  • FOAK · 2025-05C$7.7B first unitOPG's approved Darlington budget: C$6.1B for the first 300 MWe BWRX-300 plus C$1.6B for systems shared by all four planned units; C$20.9B for the four-unit, 1,200 MW project in 2024 dollars. Ontario's project approval, reported by POWER.Source ↗
  • FOAK · 2025-10~$5.4BTVA's estimate for the first Clinch River BWRX-300, before interest costs and tax credits. TVA figure, reported by WKMS.Source ↗
  • Company target · 2026-04~$4B all-inTerraPower's stated cost for Kemmerer Unit 1 (345 MWe Natrium), split roughly 50/50 with DOE under ARDP. The company has held the figure since 2021, before construction pricing could test it. Company statement, reported by POWER.Source ↗
  • Company target · 2023-01$89/MWhThe CFPP's updated target power price, January 2023, with Inflation Reduction Act support; the project terminated later that year. NuScale 8-K.Source ↗

Large LWR · The only class with completed U.S. actuals, and they set the cautionary baseline.

  • Actual · 2025-06$169/MWhVogtle 3&4 as built: ~2.2 GW, ~$32.3B total capital cost, ~97% capacity factor, 70-year life, with ~30% cost learning between unit 3 and unit 4. Lazard LCOE+ analysis of the completed project · captured copy, p. 8.Source ↗
  • FOAK · 2025-06$141–220/MWhU.S. new-build nuclear range, unsubsidized. Lazard LCOE+ estimate · captured copy, p. 8.Source ↗

Cross-class · Estimates spanning the classes.

  • Early units · 2024-09$61–122/MWhNew nuclear with the 30% 48E investment tax credit, on overnight capital of $7,000–20,000/kW and six-year construction. DOE labels the range early-of-a-kind, between FOAK and NOAK. DOE Pathways to Commercial Liftoff: Advanced Nuclear · captured copy, p. 14.Source ↗

FOAK is a first-of-a-kind unit; NOAK is the nth of a kind after learning. A company target is the company’s own number, printed as such. No figure here is the site’s estimate.

What n units buy

The sourced learning ladder: how costs are expected to move from unit 1 to a fleet, and the historical caution that they have not always moved down.

Company by company

How each entrant gets paid, its strongest government vehicle, its strongest commercial position, and any stated price. Model, government, and commercial rows are sourced facts; the next gate is this site’s judgment of the event that would move the row.

Microreactor lane

Radiant Industries

Kaleidos · 1 MWe per unit · Private

  • ModelFactory product company: sells mass-produced Kaleidos units from a Tennessee factory targeting 50 reactors a year from 2028.Source ↗
  • GovernmentFirst ANPI delivery agreement with the Defense Innovation Unit and Department of the Air Force: deliver a mass-manufactured unit to a base within 36 months of the August 2025 signing.Source ↗The specific base is still being competed against Antares and Westinghouse.Source ↗
  • CommercialEquinix signed a preorder with deposits for 20 Kaleidos units in August 2025, the first commercial microreactor preorder on record.Source ↗
  • Stated costNo price or cost target on record
  • Next gateKaleidos criticality at the DOME test bed, then first factory deliveries against the ANPI deadline and the Equinix book.Site judgment, derived from the records above.

Westinghouse

eVinci · 5 MWe per unit · Private

  • ModelEstablished vendor whose October 2025 U.S. government partnership, an ~$80B deployment frame, gives the government a claim on 20% of cash distributions above a $17.5B return threshold.Source ↗
  • GovernmentDOE selected eVinci for the first fueled microreactor experiments at the DOME test bed, with about $5M of support.Source ↗The $17.5B conditional supply-chain commitment is scoped to AP1000 long-lead items, not to eVinci or AP300.Source ↗
  • CommercialThe Saskatchewan Research Council is the first commercial eVinci customer, planning a pilot by 2029.Source ↗
  • Stated costNo price or cost target on record
  • Next gateA named U.S. customer for eVinci or AP300; the DOME test feeding an NRC licensing case.Site judgment, derived from the records above.

BWXT

Project Pele / BANR · 1.5 MWe per unit · NYSE: BWXT

  • ModelGovernment prime and manufacturer: cost-type defense contracts like the roughly $300M Project Pele prototype.Source ↗
  • GovernmentPrime contractor for Project Pele, the DOD Strategic Capabilities Office transportable microreactor being assembled at INL under a cost-type contract worth up to $300M.Source ↗
  • CommercialTata Chemicals letter of intent to explore up to eight BANR units at a Green River, Wyoming soda-ash site, early-2030s target, commercial terms still to be established.Source ↗
  • Stated cost~$300M for the 1.5 MWe Pele prototype, a government cost-type demonstration priceSource ↗
  • Next gatePele criticality at INL; commercial terms on the Tata letter of intent.Site judgment, derived from the records above.

Last Energy

PWR-20 · 20 MWe per unit · Private

  • ModelDeveloper-owner: builds, owns, and operates PWR-20 units and sells the power. Its 34 executed PPAs in Poland and the UK (680 MW, ~$18.9B in power sales) are the model working outside the U.S.Source ↗
  • GovernmentDOE Reactor Pilot Program: the PWR-5 pilot at Texas A&M-RELLIS has an approved preliminary safety analysis and awaits DOE authorization for fuel and criticality.Source ↗
  • CommercialA 200-acre Haskell County, Texas site plans up to 30 units (600 MW) for data-center customers in ERCOT, interconnection request filed, with the company saying offtaker news is still to come.Source ↗
  • Stated costNo price or cost target on record
  • Next gateDOE authorization to run PWR-5, and a first U.S. power buyer to anchor Haskell County.Site judgment, derived from the records above.

Deep Fission

Gravity Reactor · 15 MWe per unit · Nasdaq: FISN

  • ModelBorehole developer: emplaces PWR microreactors a mile underground in ~30-inch boreholes, with the water column and surrounding rock providing the passive safety case.Source ↗
  • GovernmentDOE Reactor Pilot Program selection, with the pilot sited at Parsons, Kansas and data-acquisition drilling underway.Source ↗
  • CommercialEndeavour framework to co-develop 2 GW for its data-center portfolio, targeting first reactors in 2029. Non-binding.Source ↗
  • Stated cost5–7¢/kWh target for the Endeavour frameworkSource ↗
  • Next gateA licensed pathway for Parsons: the framework prices at 5–7¢ only if boreholes license as cheaply as they drill.Site judgment, derived from the records above.

Aalo Atomics

Aalo-X · 10 MWe per unit · Private

  • ModelVertically integrated for AI data centers: the Aalo-X reactor and the 50 MWe Aalo Pod plant product.Source ↗
  • GovernmentDOE Reactor Pilot Program: its Critical Test Reactor reached criticality at INL on July 4, 2026, and Aalo-X proceeds under the same DOE authority.Source ↗
  • CommercialCrusoe strategic partnership: power one Crusoe Spark modular data center at INL in 2027 as proof of concept, with aspirational Pod deployments by 2029. No megawatts contracted.Source ↗
  • Stated costNo price or cost target on record
  • Next gateAalo-X operating at INL and the Crusoe proof-of-concept carrying real load.Site judgment, derived from the records above.

Valar Atomics

Ward 250 · 5 MWe per unit · Private

  • ModelGigasite model: hundreds of reactors clustered on single industrial campuses selling grid-independent power, hydrogen, and clean hydrocarbon fuels.Source ↗
  • GovernmentDOE Reactor Pilot Program: Ward 250 reached criticality in Utah in June 2026, the only pilot reactor built outside a national laboratory.Source ↗
  • CommercialNVIDIA collaboration for a ~30 MW pilot AI data center in Emery County, Utah, paired with Ward 250. Non-binding.Source ↗
  • Stated costNo price or cost target on record
  • Next gateAn NRC commercial case: the Utah test ran under DOE authority that does not transfer to sales.Site judgment, derived from the records above.

Antares Nuclear

R1 · 0.3 MWe per unit · Private

  • ModelDefense-first microreactor maker: the R1 targets military installations, with Mark-1 aimed at producing electricity in 2027 and installation deployment by 2028.Source ↗
  • GovernmentFirst Reactor Pilot Program criticality: Mark-0 at INL, June 2026, run with the U.S. Army.Source ↗One of three finalists for ANPI base assignments in Colorado and Montana; no award yet.Source ↗Delivered an electrically heated prototype for testing at NASA's Marshall Space Flight Center, under a NASA program that uses Space Act Agreements in which companies own the reactors and sell the power.Source ↗
  • CommercialNo commercial position on record. A research finding, not a sourced claim.
  • Stated costNo price or cost target on record
  • Next gateAn ANPI base award against two competitors, then Mark-1 producing power.Site judgment, derived from the records above.

NANO Nuclear Energy

KRONOS MMR · 15 MWe per unit · Nasdaq: NNE

  • ModelUniversity-partnered demonstration first: the KRONOS construction permit at the University of Illinois is under full NRC review.Source ↗
  • GovernmentAFWERX Direct-to-Phase-II contract (~$1.25M) to study a KRONOS system at Joint Base Anacostia-Bolling. A feasibility study, not a unit order.Source ↗
  • CommercialNo commercial position on record. A research finding, not a sourced claim.
  • Stated costNo price or cost target on record
  • Next gateThe KRONOS construction permit (~12-month NRC clock from May 2026) and a first paying customer beyond the feasibility study.Site judgment, derived from the records above.

Deployable Energy

Unity · 1 MWe per unit · Private

  • ModelNuclear-battery platform: 1 MWe Unity units aimed at behind-the-meter national-security, data-center, maritime, and remote industrial loads.Source ↗
  • GovernmentReactor Pilot Program criticality at INL on July 1, 2026, about 150 days from kickoff.Source ↗One of the first four developers named to DOE's Nuclear Energy Launch Pad.Source ↗
  • CommercialNo commercial position on record. A research finding, not a sourced claim.
  • Stated costNo price or cost target on record
  • Next gateA first disclosed customer or program contract beyond the DOE pilot cohort.Site judgment, derived from the records above.

Grid-scale SMR lane

TerraPower

Natrium · 345 MWe per unit · Private

  • ModelProject sponsor: builds Kemmerer with a roughly 50/50 DOE cost share under ARDP, up to a $2B federal ceiling.Source ↗
  • GovernmentARDP demonstration cost share, up to $2B DOE ceiling at 50% of project costs, the largest federal commitment behind any entrant's first unit.Source ↗
  • CommercialPacifiCorp's resource plan selected two additional Natrium units in Utah by 2033, alongside the Kemmerer unit already in its territory.Source ↗The Meta framework covers up to eight plants, up to 2.8 GW baseload or 4 GW with the storage boost, with no site named yet.Source ↗
  • Stated cost~$4B all-in for Kemmerer Unit 1, a figure held since 2021Source ↗
  • Next gateAn operating-license application for Kemmerer, and the first sited order under the Meta framework.Site judgment, derived from the records above.

Oklo

Aurora · 75 MWe per unit · NYSE: OKLO

  • ModelBuild-own-operate: Oklo keeps the plant and sells power, so its deals are power agreements rather than reactor sales. The Eielson structure is exactly that: design, build, own, operate.Source ↗
  • GovernmentAir Force/DLA Notice of Intent to Award for a 5 MW microreactor at Eielson AFB under a prospective 30-year fixed-price power arrangement, pending NRC licensing.Source ↗Aurora-INL is being built under the DOE Reactor Pilot Program while its NRC combined license is under review.Source ↗
  • CommercialSwitch master power agreement frames 12 GW of Aurora deployment by 2044; non-binding, with per-project PPAs to follow.Source ↗Meta agreement supports up to 1.2 GW in southern Ohio, with Meta able to prepay for power and fund development.Source ↗Equinix prepaid $25M against up to 500 MWe with a 36-month right of first refusal.Source ↗Diamondback Energy letter of intent: 50 MW over 20 years for Permian Basin operations.Source ↗
  • Stated cost$40–90/MWh expected levelized cost, per its shareholder presentationSource ↗
  • Next gateAn issued NRC combined license: every framework in the pipeline prices only after licensed capacity exists.Site judgment, derived from the records above.

Kairos Power

KP-FHR · 140 MWe per unit · Private

  • ModelFleet developer-operator: builds and operates KP-FHR plants and sells the power, with the Google master agreement as the anchor order book.Source ↗
  • GovernmentARDP Risk Reduction award implemented as a Technology Investment Agreement: $629M Hermes 1 project with DOE paying up to $303M against fixed milestones.Source ↗
  • CommercialGoogle Master Plant Development Agreement for up to 500 MW by 2035, sold plant-by-plant under PPAs.Source ↗Hermes 2, under construction at Oak Ridge, is the first deployment under the Google framework.Source ↗
  • Stated costNo price or cost target on record
  • Next gateHermes 2 operating, then the first commercial 140 MWe plant order under the Google agreement.Site judgment, derived from the records above.

X-energy

Xe-100 · 80 MWe per unit · Nasdaq: XE

  • ModelReactor and fuel vendor: sells Xe-100 plants and TRISO-X fuel, with the ARDP demonstration delivering the first commercial four-unit plant and fuel facility.Source ↗
  • GovernmentARDP cost share of up to $1.2B at 50/50 to develop, license, build, and demonstrate the first Xe-100 plant and fuel facility.Source ↗
  • CommercialAmazon framework targets bringing more than 5 GW of Xe-100 projects online by 2039.Source ↗Energy Northwest's Cascade facility carries a funded 320 MWe first phase under Amazon's development-and-funding agreement.Source ↗Dow's Long Mott plant in Texas cleared its NRC environmental review with a finding of no significant impact.Source ↗
  • Stated costNo price or cost target on record
  • Next gateThe Long Mott construction permit, with NRC's safety review targeted for November 2026.Site judgment, derived from the records above.

Holtec International

SMR-300 · 300 MWe per unit · Private

  • ModelSMR-300 fleet builder with exclusive EPC partner Hyundai E&C and a stated ambition of a 10 GW North American fleet.Source ↗
  • Government$400M Gen III+ Tier 1 milestone-based cost share for PIONEER 1&2 licensing, pre-construction, and supply-chain mobilization.Source ↗$1.52B DOE loan to Holtec Palisades LLC covers the existing 800 MW reactor's restart, not the new units.Source ↗
  • CommercialThe Wolverine/Hoosier PPA on restarted Palisades carries a contract expansion provision covering up to two SMR-300 units at the site.Source ↗Holtec's own program timeline targets executing a PIONEER power contract in 2026; none is executed yet.Source ↗
  • Stated costNo price or cost target on record
  • Next gatePalisades back on the grid, and an executed PIONEER power contract.Site judgment, derived from the records above.

GE Vernova Hitachi

BWRX-300 · 300 MWe per unit · Private

  • ModelReactor vendor to utility self-builders: the utility owns and builds while GVH supplies the BWRX-300 design inside the integrated project team.Source ↗
  • GovernmentDOE's $400M Tier 1 award flows to TVA to accelerate the Clinch River BWRX-300.Source ↗The U.S.-Japan framework earmarks up to $40B for BWRX-300 builds at unidentified Tennessee and Alabama sites.Source ↗
  • CommercialTVA's Clinch River Unit 1 proceeds as a utility self-build with Bechtel, Sargent & Lundy, and GE Hitachi on the project team.Source ↗OPG's four-unit Darlington program in Canada is the design's first-of-a-kind proof, on an approved C$20.9B budget.Source ↗
  • Stated costDarlington: C$7.7B first unit including shared systems; C$20.9B for four units (2024 dollars)Source ↗
  • Next gateThe Clinch River permit decision after the August 2026 mandatory hearing; Darlington Unit 1 completion sets the design's real cost.Site judgment, derived from the records above.

NuScale Power

NuScale Power Module / VOYGR · 77 MWe per unit · NYSE: SMR

  • ModelTechnology licensor: ENTRA1 Energy exclusively develops, finances, owns, and operates NuScale-powered plants; NuScale sells the licensed module.Source ↗
  • GovernmentThe DOE-backed CFPP, the company's federal build program, terminated in November 2023 when subscription fell short.Source ↗
  • CommercialENTRA1 and TVA signed a collaborative agreement to deploy up to 6 GW across TVA's service region; non-binding.Source ↗Management targets converting the TVA collaboration into a signed power contract by the end of 2026.Source ↗RoPower's 462 MWe six-module plant in Romania took its final investment decision in February 2026.Source ↗
  • Stated cost$89/MWh, the CFPP target price at terminationSource ↗
  • Next gateConverting the TVA collaboration into a signed power contract, the company's own end-of-2026 target.Site judgment, derived from the records above.

Terrestrial Energy

IMSR · 195 MWe per unit · Nasdaq: IMSR

  • ModelReactor vendor pairing DOE pilot agreements (Project TETRA reactor, Project TEFLA fuel salt) with the commercial IMSR400 product.Source ↗
  • GovernmentTwo DOE Other Transaction Agreements executed under Executive Order 14301 pathways: Project TETRA, the pilot reactor, and Project TEFLA, the fuel salt facility.Source ↗
  • CommercialRiot Platforms collaboration scoped up to 4 GW across data-center sites in Texas and Kentucky; an MOU-level collaboration, not an order.Source ↗An Ameresco collaboration on customized IMSR energy-supply projects carries no quantified megawatts.Source ↗
  • Stated costNo price or cost target on record
  • Next gateTETRA criticality, then an NRC construction-permit filing built on the RELLIS site data.Site judgment, derived from the records above.

Deal details, dates, and megawatts for every agreement named here live on each company’s dossier page, with the race board’s binding and non-binding lanes kept apart.

Contracting mechanisms

Every mechanism listed as in use has at least one executed example. Anything available, solicited, or signed as intent but never yet executed sits in its own lane; proposals are labeled as proposals.

In use

Milestone-based cost share

The government pays fixed amounts only when named milestones complete, so overruns between milestones stay with the developer.

The DOE/Kairos Technology Investment Agreement: a $629M Hermes 1 project with DOE paying up to $303M against fixed milestones. (2024-02.) Source ↗

50/50 demonstration cost share

DOE matches project spend up to a ceiling, halving the private capital a first unit needs.

ARDP: X-energy's award of up to $1.2B at 50/50 to develop, license, build, and demonstrate the first Xe-100 plant and fuel facility. (2020-10.) Source ↗

Defense delivery agreement

A delivery deadline, not a study: the contract obliges a working unit at a base by a date.

Radiant's ANPI agreement with DIU and the Department of the Air Force: a mass-manufactured Kaleidos delivered within 36 months. (2025-08.) Source ↗

Order book with per-plant PPAs

One master agreement commits a fleet; each plant closes its own PPA as it matures. The buyer gets optionality, the developer gets a book that supply chains can invest against.

Google-Kairos Master Plant Development Agreement: up to 500 MW by 2035. (2024-10.) Source ↗

Customer-funded development

The offtaker pays development costs directly instead of waiting to buy power, converting a future PPA into present-day project capital.

Amazon and Energy Northwest's Carbon Free Development and Funding Agreement for Cascade's initial 320 MWe phase. (2024-10.) Source ↗

Power prepayment

The buyer prepays for future electricity, financing construction from the demand side without taking equity.

The Meta-Oklo agreement for up to 1.2 GW in Ohio lets Meta prepay for power and fund project development. (2026-01.) Source ↗

Prepayment for optionality

A deposit today buys first claim on capacity tomorrow: real money moves while the offtake itself stays unsigned.

Equinix prepaid Oklo $25M under a pre-agreement carrying a 36-month right of first refusal on up to 500 MWe; the offtake beyond the prepayment is non-binding. (2024-04.) Source ↗

Factory preorder with deposits

Deposits against factory units, the aircraft-order model applied to reactors. Deposits fund the line; the book justifies the factory.

Equinix preorder and deposits for 20 Radiant Kaleidos microreactors. (2025-08.) Source ↗

Developer-owned build with PPAs

The developer finances, owns, and operates its own units and sells power under PPAs it originates, keeping control of price and pace.

Last Energy's 34 executed PPAs across Poland and the UK: 680 MW, roughly $18.9B in power sales. (2024-03.) Source ↗

Exclusive commercialization partner

A partner develops, finances, owns, and operates every plant; the reactor company stays a technology licensor.

ENTRA1 Energy, NuScale's exclusive global commercial partner. (2025-09.) Source ↗

Utility self-build in rate base

A utility builds and owns the plant, recovering cost through regulated rates or public-power revenue, the model that financed the existing U.S. fleet.

Vogtle 3&4: Georgia Power's completed ~2.2 GW expansion, the model's latest executed instance, delivered at ~$32.3B of capital. (2025-06.) Source ↗

PPA with fleet-expansion option

A power contract on an existing asset embeds an option on future units, giving the next reactor a buyer before it exists.

The Palisades PPA carries a contract expansion provision covering up to two SMR-300 units Holtec intends to build at the site. (2023-09.) Source ↗

Government profit participation

Federal financing support is exchanged for a share of upside above a return threshold, an equity-like claim without equity.

The U.S. government-Westinghouse partnership announced October 2025: an ~$80B deployment frame carrying a federal claim on 20% of cash distributions above a $17.5B return threshold. (2025-10.) Source ↗

Regulated asset base (UK)

Consumers pay a regulated charge during construction, cutting financing costs by years of carry; the state co-invests and shares overrun risk.

Sizewell C: the first nuclear RAB, around £38B, final investment decision July 2025 with the UK government as largest shareholder. (2025-07.) Source ↗

Available or pending, no executed instance

Sovereign framework investment

A trade framework routes allied capital into named reactor programs, adding a state balance sheet beside private ones.

The U.S.-Japan framework's up to $40B for BWRX-300 builds at unidentified Tennessee and Alabama sites, announced at head-of-government level and described as a strategic-investment framework rather than a definitive construction contract. (2026-03.) Source ↗

Anchor-customer utility tariff

Large customers commit through a special rate to fund clean-firm generation inside a regulated utility, absorbing project risk the general rate base would otherwise carry.

Duke Energy's Accelerating Clean Energy MOUs with Amazon, Google, Microsoft, and Nucor are signed agreements to explore the structure; the tariffs themselves remain proposed and subject to regulatory approval. (2024-05.) Source ↗

Tax-credit monetization

Tech-neutral 45Y/48E credits, transferable for cash, cover a large share of capital for reactors beginning construction by 2034, with a 10% adder in nuclear energy communities.

Enacted, and nuclear survived the 2025 OBBBA phase-outs that hit wind and solar; a first claim awaits the first new reactor placed in service. (2025-07.) Source ↗

Fixed-price power at a defense site

The developer finances, builds, owns, and operates; the government commits to buy power at a fixed price for decades, making the plant bankable without an equipment sale.

The Air Force/DLA Notice of Intent to Award to Oklo: a 5 MW microreactor at Eielson AFB under a prospective 30-year arrangement, with contract negotiations pending NRC licensing. No contract is executed. (2025-06.) Source ↗

Milestone-contracted installation power (Army)

The Army's Janus Program solicits commercially owned and operated microreactors on installations, paid against milestones.

Program announced October 2025 with site selection following; no vendor award named. (2025-10.) Source ↗

Oil & gas offtake

Producers with remote, always-on load contract for behind-the-meter nuclear the way they contract field power today.

The Oklo-Diamondback letter of intent, 50 MW over 20 years for Permian Basin operations, is non-binding; no executed oil-and-gas offtake is on record. (2025-04.) Source ↗

Proposed, not yet law or practice

Federal overrun risk sharing (ARC Act)

A risk reduction program creating safeguards against unforeseen costs through enhanced financing terms and a limited federal cost share, for three or more advanced reactor projects.

Introduced by Senators Risch and Gallego, February 10, 2026; endorsed by NEI and public-power groups. (2026-02.) Source ↗

Tiered overrun insurance facility

A federal facility insuring construction overruns with risk tiered among sponsor, state, and federal layers, gated on competitive selection, proven integrated project delivery, a paid premium, and state support.

Clean Air Task Force policy proposal. (2025-05.) Source ↗

Pooled insurance and liability

Nuclear liability and property risk are already mutualized across the U.S. fleet. New reactors join these pools; overrun insurance is the layer that does not exist yet.

Who underwrites

The institutions with money on or near the table, and the size of what each has committed or signaled.

Cost overruns on the record

The history a lender prices against. Each row states its own frame; the figures are not comparable to each other.

Siting, by class

Why the three classes make different deals: the ground they need and the rules that size it. A DOE authorization on a federal site is site-specific and does not transfer to a commercial sale, which still requires an NRC license; the race board’s bands keep the two apart.

Captured reports

Figures citing a “captured copy” are backed by report text archived in the repository on 2026-08-10, page-stamped so each quote is checkable against the page that carries it. The links below are the original documents.