Three designs — AP1000 (operating benchmark), AP300, eVinci
The machines being built, in order, and what each one proves.
Core-only zero-power criticality at NCERC, Nevada National Security Site, 24-Aug-26 10:39 PT, with Los Alamos and INL. Validates neutronics models and core design assumptions rather than generating heat or power — the same optional de-risking step Valar took with NOVA, at the same facility.
Heat-pipe microreactor with TRISO fuel, a graphite core and control drums, designed to run eight years without refuelling. Core physics was de-risked by the zero-power criticality campaign at NCERC. AP300 and AP1000 are separate Westinghouse product lines and are not laddered here — no sub-machines are on record for them.
3 in the tracker
| Design | Stage | Type | Coolant | MWe | Site | Criticality | Open in |
|---|---|---|---|---|---|---|---|
| AP300 | Commercial | PWR | Water | 300 | Site TBD | Target - 2031 | TimelineDesign spaceAnatomy |
| eVinci | Commercial | Heat Pipe | Sodium | 5 | INL - DOME Facility | Target - 2029 | TimelineBuildoutDesign spaceAnatomy |
| AP1000 | Commercial | PWR | Water | 1117 | Vogtle / new US build | Approved | LCOEBuildoutDesign spaceAnatomy |
1 facility
Manufacturing space for the heat pipes central to eVinci, plus other components. Westinghouse targets manufacturing eVinci units from 2029 and has said it expects to produce multiple reactors a year — no specific annual figure has been published, so units_per_year stays blank.
3 deals · 6,610 MWe announced · 0 MWe firm
| Customer | Site | Design | Units | MWe | Firm MWe | Commitment |
|---|---|---|---|---|---|---|
| US Air Force (DAF ANPI) | Malmstrom Air Force Base | eVinci | 1 | 5 | — | non-binding |
| U.S. Army | Fort Drum | eVinci | 1 | 5 | — | binding |
| The Nuclear Company | Prosperity One | AP1000 | 6 | 6600 | — | none |
2 tracked events