Under ConstructionOther / Unclassified
Project website →Oklo Aurora - INL
📍 Idaho Falls, ID (Butte County Co.)Developer: Oklo Inc.Vendor / Tech: Oklo Inc.
Capacity
1.5 MW
Expected Operation
2027
Reactor Type
Aurora (fast reactor)
Regulatory Status
Under construction at INL under DOE Reactor Pilot Program authorization; groundbreaking 2025-09-22; DOE Idaho Operations Office approved the Nuclear Safety Design Agreement and, on 2026-06-11, the Preliminary Documented Safety Analysis. Not yet operating.
Details
Primary Use
Power generation - data centers, defense, industrial
Grid Connection
WECC
Fuel Type
HALEU
Research detail · verified 2026-10-10
Stage
Under construction
Commercial power
No (test, research, military or demonstration)
Key dates
2025-09-22 groundbreaking; DOE OTA signed and NSDA approved (Oklo release); 2026-06-11 DOE approved PDSA
Not verified / conflicts
Both the advanced-reactor and pilot-program passes dropped this as belonging to the other; added in merge. PDSA date: Oklo/BusinessWire 2026-06-11 vs ANS 2026-06-12. Oklo's operation target ('late 2027 or early 2028', '2028') appeared only in search summaries and could not be confirmed from an opened page, so left blank. County not stated in sources opened.
Sources
- https://www.ans.org/news/2025-09-29/article-7414/oklo-breaks-ground-at-inl-on-aurora-reactor/
- https://oklo.com/newsroom/news-details/2026/Oklo-Announces-U-S--Department-of-Energy-Approval-for-Nuclear-Safety-Design-Agreement-of-Aurora-Powerhouse-at-Idaho-National-Laboratory/default.aspx
- https://www.ans.org/news/2026-06-12/article-8119/oklo-secures-doe-pdsa-approval/
- https://www.eagletribune.com/region/u-s-department-of-energy-approves-preliminary-documented-safety-analysis-for-aurora-powerhouse-at-idaho/article_6fde437f-d034-5acb-bc17-1a9606a43cae.html
About
Fast microreactor, recycled fuel. ~15 GW order book. Atomic Alchemy subsidiary for isotope production.
Key Organizations
Developer
Oklo Inc.
EPC Contractor
Kiewit Nuclear Solutions
Power Purchase Agreements1 PPA
Switch (12 GW MPA), Equinix ($25M prepay / 500 MW PPA LOI), Meta, Diamondback Energy, Eielson AFB (DoD)
announcedPrivate Funding
Sam Altman (AltC SPAC / $306M), Hydrazine Capital, Dustin Moskovitz, SV Angel, Accel, Draper Associates, ARK Invest
Equity
—
announced
Federal Funding
DOE
DOE Funding ·
DOE Reactor Pilot Program
—
awarded
State Policy Context
View nuclear-related legislation and energy stats for Idaho