Projects / prj-antares-mark1-inl
Antares Mark-1 electricity-producing microreactor at INL
Demonstration reactor. Antares plans to produce electricity with its full-scale Mark-1 in 2027 in the INL test facility (MFC-793) where Mark-0 reached zero-power criticality in June 2026. No DOE authorization specific to Mark-1 and no power rating were found.
- Stage
- Announced
- Design
- Design not selected (Microreactor)
- Technology
- Not selected · unknown
- Operator(s)
- Antares Nuclear
- Vendor(s)
- —
- Location
- MFC-793 test facility, INL Materials and Fuels Complex · United States · precision: undisclosed
Searchable without an invented map pin. - Coordinates
- undisclosed / not plotted
- Electrical capacity
- — · scope: module
- Thermal capacity
- —
- Modules planned
- 1
- Inclusion basis
- microreactor_labeled
- 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
- Antares: From neutrons to electrons, our path to power (company_primary, accessed 2026-10-02)
- ANS: Deployable Energy next in line for testing in NRIC's DOME (reputable_press, accessed 2026-10-02)