Kemmerer Unit 1 — Natrium Demonstration Plant
Kemmerer, Wyoming
ConstructionValue not verifiedLast reviewed: 2026-09-27
Sourced project intelligence. Blank fields are shown as “Not yet verified.” Estimates and schedules can change. Check official procurement notices for current deadlines and terms.
Project overview
- Infrastructure Sector
- Nuclear Energy
- Project Type
- Advanced nuclear reactor with energy storage
- Location
- Kemmerer, Wyoming
- Project Owner / Agency / Developer
- TerraPower
- Project Description
- A Natrium demonstration plant combining a sodium-cooled reactor with molten-salt energy storage.
- Estimated Project Value
- Not yet verified
- Funding Source
- U.S. Department of Energy Advanced Reactor Demonstration Program public-private partnership.
Schedule & delivery
- Project Stage
- Construction
- Expected Procurement Date
- Not yet verified
- Construction Start
- Official plant construction: April 23, 2026; earlier non-nuclear site work began in June 2024.
- Estimated Completion
- Not yet verified
- Delivery Method
- Engineering, procurement and construction (EPC).
- Major Scope / Components
- 345 MW reactor with storage intended to increase output to 500 MW when required.
Project team
- Key Organizations Involved
- Not yet verified
- Prime Contractor / Construction Manager
- Bechtel (EPC contractor).
- Engineering / Design Firm
- Not yet verified
- Technology / Equipment Providers
- Natrium technology: TerraPower and GE Vernova Hitachi Nuclear Energy.
- Decision Makers / Project Contacts
- Not yet verified
Procurement & opportunities
- Current RFPs / RFQs / Bid Opportunities
- Not yet verified
- Upcoming RFPs / Procurement Opportunities
- Not yet verified
- Contract Value / Package Size
- Not yet verified
- Workforce Requirements
- Owner anticipates about 1,600 construction workers and roughly 250 permanent roles.
- Supplier / Subcontractor Opportunities
- TerraPower offers supplier prescreening. Registration is not an award or a confirmed open project bid.
- Website / Procurement Portal
- Official project / procurement website ↗
Progress & intelligence
- Permitting / Regulatory Status
- Owner reports NRC construction permit issued before the April 2026 construction start. Other permits not independently reviewed.
- Major Milestones
- Not yet verified
- Recent Project Updates
- April 23, 2026: TerraPower announced the official construction start for Kemmerer Unit 1.
- Challenges / Risks
- Not yet verified
- Last Updated
- 2026-09-27