Latest milestone
DOE identified both reactors and their INL site in its contractor variance package.
2026-01 · DOE contractor variance package
Open primary source ↗← All deployments
Kaleidos + RiPPer pilot
Radiant's DOE pilot project covers the Kaleidos and RiPPer test reactors at Idaho National Laboratory.
Lead company · Radiant Industries →
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 and readiness gates for construction, fuel loading, and critical testing.
- Responsible
- Radiant Industries and DOE Idaho Operations
- Key blocker
- DOE authorization, test-bed sequencing, construction, and fuel
GenerationGen IV
ScaleMicroreactor
Reactor familyHTGR
RoleResearch / test
CapacityTwo test reactors; output not disclosed
Reporting basisGovernment-reported