Projects / prj-ward-250
Valar Atomics Ward 250
Zero-power fueled criticality demonstration on 18 Jun 2026 at the Utah San Rafael Energy Lab in Emery County, the first of these DOE-authorized pilots outside a national laboratory. Not an operating power plant. The 250 designation is undefined in the opened DOE notice.
- Stage
- Commissioning
- Design
- Ward 250 (Microreactor)
- Technology
- Other · unknown
- Operator(s)
- Valar Atomics
- Vendor(s)
- Valar Atomics
- Location
- Utah San Rafael Energy Lab · United States · precision: approximate
Lab's own about page gives 800 N Coal Haul Rd, Orangeville, UT 84537. Pin is the OpenStreetMap/Photon match for Coal Haul Road at Orangeville, a road centroid, not a surveyed reactor pad. - Coordinates
- 39.1828829, -111.047621
- Electrical capacity
- thermal only (no MWe) · scope: module
- Thermal capacity
- —
- Modules planned
- 1
- Inclusion basis
- microreactor_labeled
- Confidence
- medium
- Last verified
- 2026-10-01 (publication/verification date)
Milestones & dated events
- Ward 250 zero-power criticality: 2026-06-18 · actual · day · first_criticality
Regulatory actions
- None recorded in this release.
Sources
- DOE: Valar Atomics Ward 250 criticality (government_primary, accessed 2026-10-01)
- Utah San Rafael Energy Lab about page (government_primary, accessed 2026-10-01)
- DOE EM note on four Reactor Pilot criticality reviews (government_primary, accessed 2026-10-01)