Designs / dsn-pgsfr
PGSFR (Prototype Gen-IV Sodium-cooled Fast Reactor)
Historical KAERI sodium-cooled fast-reactor design. Its 2014 technical paper explicitly describes compact modular pool-type reactors sized for factory fabrication. A May 2022 KAERI comparison gives PGSFR 150 MWe and 392.2 MWth, with U-10Zr fuel; electrical gross/net is unspecified. That paper describes the project as stagnant at that time and distinguishes the later SALUS design. No current availability, deployment or permission is established.
Catalogue identity snapshot: 2022-05 (dated KAERI technical papers; not confirmation of current development). Later technical descriptions, where recorded, are dated separately below. Source review does not establish current availability or a deployment.
- Class
- SMR
- Technology
- Sodium-cooled fast reactor (SFR)
- Coolant
- sodium
- Spectrum
- fast
- Developer / vendor(s) as of 2022-05
- Korea Atomic Energy Research Institute
- Module electrical
- 150 MWe (nameplate (gross/net unspecified))
- Module thermal
- 392.2 MWth (nameplate; basis unspecified)
- Inclusion basis
- smr_by_design_class
- Confidence
- medium
- Last verified
- 2026-10-13
Tracked deployment projects
- No projects tracked here.
Design sources
- KAERI: Mechanical Design Concept of Fuel Assembly for Prototype GEN-IV Sodium-cooled Fast Reactor (company_primary, dated Oct 2014, accessed 2026-10-13)
- KAERI: Comparison of REBUS-3 and McCARD Depletion Calculations on a Long-term Sustainable Small Modular Reactor, SALUS (company_primary, dated May 2022, accessed 2026-10-13)