Designs / dsn-catalogue-httr
HTTR
Commercial-plant high-temperature gas-cooled reactor concept with helium turbine. This is a dated NEA catalogue profile (assessment cutoff February 2025), not confirmation of current availability, a named deployment, or authorization. Capacity is not assigned where module and plant scope or output basis has not been reconciled.
Source snapshot: 2025-02-14 (NEA assessment cutoff). Source review does not establish current availability or a deployment.
- Class
- SMR
- Technology
- Other
- Coolant
- unknown
- Spectrum
- thermal
- Developer / vendor(s)
- Japan Atomic Energy Agency
- Module electrical
- —
- Module thermal
- —
- Inclusion basis
- smr_by_design_class
- Confidence
- medium
- Last verified
- 2026-10-02
Tracked deployment projects
- No projects tracked here.