Source Report
Research Question
Conduct a comparative analysis of Oklo's primary competitors — NuScale Power, TerraPower, X-energy, and Kairos Power — across reactor technology type, power output range, regulatory progress, funding status, and target customer segments. Where does Oklo's compact fast reactor and fuel recycling differentiation create competitive moat, and where are competitors further along in commercialization? Produce a comparison table and identify which competitor poses the greatest displacement risk to Oklo's target markets.
NuScale Power leverages its sole NRC-approved SMR design to secure utility-scale contracts, but its larger modules and light-water technology limit appeal for compact, off-grid data centers where Oklo's micro-scale fast reactors excel.[1][2]
- NuScale's 77 MWe pressurized water reactor (PWR) modules scale to 462-924 MWe plants; NRC certified the uprated 77 MWe design in 2025.[1]
- Regulatory lead: Only U.S. SMR with full NRC standard design approval; Romania's RoPower FID for 6 modules (~462 MWe) in 2026, online ~2033; U.S. MOU with ENTRA1/TVA for up to 6 GW.[3][4]
- Funding: Public (NYSE:SMR), ~$1.3B liquidity end-2025 post-ATM raises.[5]
- Targets: Utilities (TVA), international grids (Romania), process heat; revenue from FEED studies now, deployments 2030s.
For Oklo entrants: NuScale's approval barrier is high for utilities needing proven tech now, but avoid if targeting <100 MWe remote sites—Oklo's 15-75 MWe flexibility wins on footprint/speed.
TerraPower's Natrium sodium fast reactor matches Oklo's fast-spectrum efficiency but scales to utility size with storage, pulling ahead on construction permit while Oklo remains pre-application.[6][7]
- 345 MWe sodium-cooled fast reactor + molten salt storage (boost to 500 MWe); Wyoming demo broke ground 2024, NRC construction permit March 2026, online 2030-2031.[7]
- Funding: ~$1.46B+ total; $650M Series (2025, incl. Gates/NVIDIA); Meta deal for up to 8 units (2.8 GW by 2032+).[8]
- Targets: Utilities (PacifiCorp), data centers (Meta/Sabey); HALEU via DOE.
For Oklo: TerraPower's permit advances commercialization for GW-scale, but Oklo's recycling moat (waste-to-fuel, 70-80% cost cut) and micro-size suit hyperscalers' modular needs—differentiate on fuel independence.
X-energy's Xe-100 HTGR uses meltdown-proof TRISO pebbles for industrial heat+power, with Dow/Amazon deals signaling process-heavy commercialization edge over Oklo's power-only focus.[9][10]
- 80 MWe (200 MWth) helium-cooled, pebble-bed; 4-pack=320 MWe; NRC 18-month CPA review for Dow Texas (2025 submit), Amazon 5 GW options by 2039.[11]
- Funding: ~$1.8B total ($700M Series D Nov 2025).
- Targets: Industrial (Dow steam/power), data (Amazon/Energy Northwest), UK (Centrica 6 GW).
For Oklo: X-energy leads on fuel fab (TRISO-X) and heat co-gen for chem/plastics; Oklo counters with recycling for endless cheap fuel, ideal for pure electric data loads.
Kairos Power's KP-FHR molten salt reactor prioritizes heat for data centers via Google/TVA PPAs, but low-power demos trail Oklo's scaled Aurora in electric output readiness.[12][13]
- Fluoride salt-cooled HTGR (TRISO pebbles); Hermes low-power (35 MWth, non-electric) construction 2024, online 2027; Hermes 2 uprated to 50 MWe (from 28), online 2030 for TVA/Google; fleet to 500 MW by 2035.[12]
- Funding: DOE $303M milestone-based; Google PPAs.
- Targets: Data centers (Google 500 MW), utilities (TVA).
For Oklo: Kairos' heat edge suits some industrials, but Oklo's electric-first fast reactor + recycling hits data centers harder on baseload cost.
| Company | Technology Type | Power Output (MWe) | Regulatory Progress (2026) | Funding (Total Raised) | Target Customers |
|---|---|---|---|---|---|
| Oklo | Sodium-cooled fast reactor | 15-75 | Pre-app; DOE site/fuel; INL ground broken; COLA Phase 1 2025, target late 2027.[14] | Public (~$9-10B mkt cap; $1.2B cash)[15] | Data centers (Meta 1.2 GW, Equinix), defense, oil/gas[14] |
| NuScale | PWR SMR | 77/module (462+) | Full NRC design approval (77 MWe); RoPower FID.[1] | Public (~$4B mkt cap; $1.3B liquidity)[5] | Utilities (TVA 6 GW), intl grids[16] |
| TerraPower | Sodium fast + salt storage | 345 (500 peak) | NRC construction permit (Mar 2026); Wyoming online 2030.[6] | ~$1.46B+ (Gates-led)[17] | Utilities, data (Meta 2.8 GW)[8] |
| X-energy | HTGR pebble-bed | 80/module (320+) | CPA under 18-mo review (Dow); fuel fab advancing.[11] | ~$1.8B[18] | Industrial (Dow), data (Amazon 5 GW)[10] |
| Kairos | Fluoride salt-cooled HTGR | 50 (Hermes 2) | Hermes CPA (low-power construction); Hermes 2 CPA review.[12] | DOE $303M; Google PPAs[19] | Data (Google 500 MW), utilities (TVA)[12] |
Oklo's fast reactor + fuel recycling moat slashes long-term fuel costs 70-80% via U.S. waste (~96k MT, 200 GW potential) and gov't Pu/LEU, unbeatable for sustained data center baseload—but NuScale/TerraPower lead commercialization with approvals/deployments 3-5 years ahead.[20][21]
- Mechanism: Fast neutrons "breed" fuel from waste/poor U, vs. competitors' once-through cycles; EBR-II heritage (400+ reactor-years) proven; recycling demo complete, Tennessee facility 2030s.[22]
- Implication: Competitors face HALEU shortages/prices; Oklo's vertical integration (recycle + radioisotopes) yields LCOE edge, endless supply.
NuScale/TerraPower pose displacement risk: NuScale's approval locks utilities; TerraPower's permit + Meta deal targets Oklo's data market first (2030 vs. Oklo 2027 target, but Oklo risks NRC denial). Greatest risk: TerraPower—similar tech, bigger output, regulatory momentum into hyperscaler contracts.[7]
Data rigor: Figures web-verified (2025-2026); funding/mkt caps approximate totals incl. equity/ATM (Oklo/NuScale public); timelines high-confidence from NRC/DOE/official releases; recycling economics from Oklo (est., no indep. audit). Additional due diligence on HALEU/Pu logistics advised.
Recent Findings Supplement (March 2026)
TerraPower's Natrium reactor secured the first NRC commercial construction permit in over 10 years (March 4, 2026), enabling full nuclear-related construction at its Wyoming Kemmerer site after prior non-nuclear groundwork—this accelerates the sodium fast reactor's path to grid-scale operation, outpacing peers by demonstrating deployable load-following via integrated molten salt storage that boosts output on demand without altering core power.[1][2][3]
- 345 MWe base (up to 500 MWe peak for 5+ hours), 840 MWt thermal; first-of-kind under DOE ARDP with $2B+ cost-share.[4][5]
- Meta agreement (Jan 2026) supports up to eight units (2.8 GW base + 1.2 GW storage, peak 4 GW) for data centers/AI, early 2030s deployment.[6][7]
For Oklo entrants targeting hyperscalers, TerraPower poses the greatest displacement risk in utility-scale data center markets due to its regulatory lead and flexible output matching peak AI loads—new players must differentiate on micro-scale siting or fuel recycling to avoid competing on larger footprints.
X-energy's TRISO-X subsidiary received NRC licenses (Feb 17, 2026) for two Tennessee facilities to produce TRISO fuel—the first advanced reactor fuel factory approved—de-risking supply for Xe-100 high-temperature gas reactors while a $700M Series D (Nov 25, 2025, led by Jane Street/Amazon) funds commercialization amid data center demand.[8][9]
- Xe-100: 80 MWe/module (multi-unit 320-960 MWe plants); vertical construction started Nov 2025 on TX-1 fuel fab (5 MTU/year, fuels 11 reactors); Doosan deal Dec 2025 reserves components for 16 units.[10][11]
- Targets: Data centers (Amazon 5+ GW by 2039, Cascade 320-960 MWe WA w/Energy Northwest), industrials (Dow Seadrift 320 MWe TX); UK 6 GW pipeline.[12]
X-energy's fuel/security and funding surge create a supply chain moat; Oklo competitors entering data centers face execution risk unless matching TRISO's high-assay/low-waste efficiency for hyperscalers demanding 24/7 baseload.
Oklo broke ground Sep 22, 2025 on Aurora-INL (75 MWe sodium fast reactor at Idaho National Lab) under DOE Reactor Pilot Program, followed by Oct 1 DOE selection for three fuel fab facilities supporting Aurora/Pluto fast reactors plus Oak Ridge spent fuel recycling—enabling its fuel recycling moat for waste-minimized operations.[13][14]
- Aurora: 75 MWe liquid metal-cooled/metal-fueled (scalable from prior 15-50 MWe); commercial ops late 2027/early 2028 targeted.[15][16]
- Meta deal Jan 2026: Up to 1.2 GW campus Ohio (multiple units for data centers/AI supercluster, 2030+).[17]
Oklo's recycling + compact fast spectrum differentiates for remote/off-grid hyperscalers; to compete, others need fuel autonomy as DOE pilots favor recyclers—risk low if Oklo hits 2027 demo.
NuScale Power finalized NRC Standard Design Approval May 2025 for uprated 77 MWe VOYGR module (6-unit plants)—building on prior 50 MWe cert—streamlining customer licensing for scalable LWR SMRs amid AI tailwinds, though no new major contracts post-9/9/25 noted.[18]
- 77 MWe/module (308-924 MWe plants); >$1.8B invested ($578M DOE); RoPower Romania (Doicesti, 6-unit), ENTRA1/TVA partnerships ongoing.[19]
NuScale's dual NRC approvals position it for quickest utility deployments; Oklo moat holds in micro/novel fuel niches, but LWR familiarity risks commoditizing data center power—watch for DoE/tax credit edges.
Kairos Power lacks major post-9/9/25 milestones (e.g., no new NRC/DOE/funding announcements), trailing peers despite Google/TVA PPA (Aug 2025) for Hermes 2 (uprated to 50 MWe fluoride salt-cooled, 2030 ops powering TN/AL data centers).[20]
- KP-FHR: 75 MWe commercial scale (150 MWe dual-unit min); 500 MW Google fleet by 2035.[21]
Kairos lags commercialization; Oklo's faster demo + recycling provides moat vs. salt-cooled peers—minimal near-term displacement.
| Company | Tech Type | Power Range (MWe) | Regulatory Progress (Post-9/9/25) | Funding/Status (Post-9/9/25) | Target Customers |
|---|---|---|---|---|---|
| Oklo | Fast Na (Aurora) + recycle | 75/unit (1.2 GW campus) | Aurora-INL groundbreaking (9/22/25); DOE fuel pilot (10/1/25)[13] | Meta 1.2 GW Ohio (1/26)[17] | Data centers (Meta, hyperscalers) |
| NuScale | LWR SMR (VOYGR) | 77/module (308-924) | NRC SDA 77 MWe 6-unit (5/25)[18] | Ongoing RoPower/ENTRA1/TVA | Utilities, industrials |
| TerraPower | Na Fast (Natrium) | 345 base (500 peak) | NRC construction permit Kemmerer (3/4/26)[3] | Meta up to 8 units/2.8 GW (1/26)[6] | Utilities, data centers (Meta) |
| X-energy | HTGR (Xe-100) + TRISO | 80/module (320-960) | TRISO-X fuel fab licenses (2/17/26)[8] | $700M Series D (11/25/25); Doosan 16-unit[9] | Data centers (Amazon), industrials (Dow) |
| Kairos | FHR (KP-FHR) | 50-75/unit (150+) | None new | Google/TVA Hermes 2 (pre-9/9)[20] | Data centers (Google/TVA) |
Oklo's moat: Fuel recycling + compact fast reactors enable on-site data center power w/minimal waste, ideal for hyperscalers avoiding grid queues; peers further in regulation (TerraPower/X-energy NRC wins) and funding (X-energy $700M)—TerraPower greatest risk to Oklo's utility-adjacent markets via scale/flexibility.[14] Confidence high on cited milestones (web-verified); estimated where unspecified (e.g., no Kairos/NuScale new deals)—further DOE/NRC dockets recommended.