Latest milestone
DOE identified TETRA-1 and the Texas A&M RELLIS campus in its contractor variance package.
2026-01 · DOE contractor variance package
Open primary source ↗← All deployments
TETRA-1 pilot reactor
Terrestrial Energy's TETRA-1 test project under the DOE Reactor Pilot Program pathway.
Lead company · Terrestrial Energy →
Program · Reactor Pilot Program
DOE pilot developmentMedium confidence
Deployment stage3 / 8Development
Deployment trajectory
1Interest
2Preliminary
3Development
4Contractual
5Ready
6Physical
7Operational
8Replication
Next milestone
Complete DOE authorization, site work, fuel preparation, construction, and critical-test readiness.
- Responsible
- Terrestrial Energy and DOE Idaho Operations
- Key blocker
- DOE authorization, fuel-salt preparation, construction, and testing
GenerationGen IV
ScaleTest reactor
Reactor familyMSR
RoleResearch / test
CapacityNot disclosed by DOE
Reporting basisGovernment-reported