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Bellevue, WA, USA · Private · terrapower.com
Natrium sodium-cooled fast reactor with molten-salt storage (Kemmerer, WY)
Open roles
97
▲ 1 since 2026-11-05
Federal awards
$3.0M
2 grants, contracts, loans
Last private raise
—
no Form D on file
SEC filings
—
not an SEC filer
Coming up
POLICYRussian uranium import ban: waiver period
DOE can grant waivers for Russian enriched uranium until Jan 1, 2028; after that the ban is absolute. Affects Fission.
+ THESISHIRING97 open roles (+1 since Nov 5, 2026)
Biggest teams: Natrium 26, TPI 15, Finance 13, Plant Operations (USO) 7.
+ THESISPOLICYDOE Energy Dominance Financing: Constellation and Alliant
Up to $5B conditional loan to Constellation for nuclear uprates (~1.1 GW) and a closed $5.1B loan to Alliant for gas, storage and upgrades (~2.6 GW). The office (formerly the Loan Programs Office) has over $300B of authority. Affects Fission.
+ THESISPOLICYDOE adds helium to the Critical Material List
DOE added helium to its Critical Material List, citing semiconductors, natural-gas leak testing and quantum computing. Helium also cools fusion magnets and high-temperature gas reactors. Affects Fission.
+ THESISFUNDINGNuclear developments in Wyoming, Kentucky, and Louisiana
ANS Nuclear Newswire: Many regions of the country remain in the headlines with new or developing nuclear projects. Earlier this week, Nuclear News reported on recent goings-on in Indiana. In other updates, TerraPower hosted top-level government officials at its Natrium site in Kemmerer, Wyo.; Kentucky…
ans.org →+ THESISPARTNERSHIPTerraPower signs HDEC EPC framework and SK Innovation agreement
TerraPower selected Hyundai Engineering & Construction as EPC contractor for up to eight future Natrium reactors, with completion, price and performance guarantees, and signed a second agreement with SK Innovation to commercialize Natrium in the US, Korea and other markets.
terrapower.com →+ THESISPOLICYDOE Energy Dominance Financing: 10 large reactors
Up to $17.5B in conditional loans for ten Westinghouse AP1000 reactors at five sites; partners must commit $1B equity per project. Utility selections expected in the second half of 2026. Affects Fission.
+ THESISPROJECTTerraPower begins construction on Natrium plant in Kemmerer
Official construction start on Kemmerer Unit 1, a 345 MWe sodium-cooled fast reactor with molten-salt storage that can temporarily boost output to 500 MWe. Bechtel was named EPC partner at the time, though a later ANS item says Bechtel will no longer be involved.
ans.org →+ THESISREGULATORYNRC issues construction permit for Natrium reactor in Kemmerer
The NRC approved a construction permit for the Kemmerer, Wyoming Natrium plant, the first such permit for a commercial non-light-water power reactor. An operating license is still required before the plant can run; completion is expected around 2030.
energy.gov →+ THESISHow it works
The core sits in a pool of liquid metal or molten salt that carries heat away at normal pressure. Some designs store that heat in molten-salt tanks so the plant can boost output when the grid needs it.
OPEN IN 3D →ProofNuclear construction of Kemmerer Unit 1 began after the NRC construction permitApr 23, 2026yahoo.com
NextComplete Kemmerer (target early 2031)
Supply-chain security
Secured · Contracted · At risk · Unknown — rated only on public evidence; Unknown means nothing has been disclosed.
Sources: company job boards (daily), SEC EDGAR, USAspending.gov, and the reviewed technology spreadsheets. Public records only cover US entities, so foreign companies and private firms that don't file will show gaps.
Public $2.0BPrivate $0
Money behind this company's projects. Company-wide raises are listed but not counted in totals.
No public filings, raises or hiring trend to read yet.
Read from SEC 8-Ks (bankruptcy, default, delisting, restatement, impairment, restructuring), cash runway in annual reports, Form D raises and the 30-day hiring trend. A prompt to look closer, not a credit rating.
2026-11-052026-11-09
By team
By location
Matched recipient: TERRAPOWER LLC
STEP 4/6 · AT RISK HALEU is the bottleneckMost advanced designs need HALEU (5–20% enriched), with no commercial US supply at scale yet.
STEP 5/6 · AT RISK Advanced reactor timelinesFuel availability becomes a gating item for first units.
STEP 4/4 · WATCH Office relaunched as Energy Dominance FinancingLending shifts toward nuclear and utility expansions (AP1000 offers, Constellation uprates).
Critical inputs
Policy that applies
No minerals, policies or partners linked yet. Add them in the review spreadsheet.
2026-10-21 · funding
Nuclear developments in Wyoming, Kentucky, and LouisianaANS Nuclear Newswire: Many regions of the country remain in the headlines with new or developing nuclear projects. Earlier this week, Nuclear News reported on recent goings-on in Indiana. In other updates, TerraPower hosted top-level government officials at its Natrium site in Kemmerer, Wyo.; Kentucky…2026-08-14 · partnership
TerraPower signs HDEC EPC framework and SK Innovation agreementTerraPower selected Hyundai Engineering & Construction as EPC contractor for up to eight future Natrium reactors, with completion, price and performance guarantees, and signed a second agreement with SK Innovation to commercialize Natrium in the US, Korea and other markets.2026-04-24 · project
TerraPower begins construction on Natrium plant in KemmererOfficial construction start on Kemmerer Unit 1, a 345 MWe sodium-cooled fast reactor with molten-salt storage that can temporarily boost output to 500 MWe. Bechtel was named EPC partner at the time, though a later ANS item says Bechtel will no longer be involved.2026-03-09 · regulatory
NRC issues construction permit for Natrium reactor in KemmererThe NRC approved a construction permit for the Kemmerer, Wyoming Natrium plant, the first such permit for a commercial non-light-water power reactor. An operating license is still required before the plant can run; completion is expected around 2030.Not an SEC filer, or no US entity matched. Most private and foreign companies don't file.
2026-01-01 · partnership
Meta agreement for up to eight Natrium plants (January 2026)TerraPower and Meta signed a deal to develop up to eight Natrium plants in the US supplying 2.8 GWe of baseload power, with initial units targeted as early as 2032. The date given is month-level only (January 2026).