Projects / prj-hyperion-srs-2012
Hyperion / Gen4 Module proposal at Savannah River Site (2012)
Historical proposal. In March 2012 Hyperion Power Generation (renamed Gen4 Energy) signed a memorandum of agreement with DOE-Savannah River and announced a commitment to deploy a first Hyperion reactor (25 MWe, 70 MWt) at the site. No licence application or construction is documented; the latest evidence is from 2012 and cancellation is not inferred.
- Stage
- Announced
- Design
- G4M (SMR)
- Technology
- Lead-cooled fast reactor (LFR) · lead_bismuth
- Operator(s)
- —
- Vendor(s)
- Gen4 Energy Inc.
- Location
- Savannah River Site · United States · precision: undisclosed
Searchable without an invented map pin. - Coordinates
- undisclosed / not plotted
- Electrical capacity
- 25 MWe (nameplate (gross/net unspecified)) · scope: module
- Thermal capacity
- 70 MWth (nameplate_unspecified)
- Modules planned
- 1
- Inclusion basis
- historical_smr_program
- Confidence
- medium
- Last verified
- 2026-10-02 (publication/verification date)
Milestones & dated events
- No dated milestones recorded yet.
Regulatory actions
- None recorded in this release.
Sources
- DOE: Energy Department announces small modular reactor technology partnerships at Savannah River (government_primary, accessed 2026-10-02)
- Gen4 Energy (formerly Hyperion): plans to deploy an advanced reactor at Savannah River (company_primary, accessed 2026-10-02)