Projects / prj-long-mott
Long Mott Generating Facility (Xe-100 at Dow Seadrift)
Four Xe-100 modules proposed for industrial electricity and steam. Construction permit under NRC review; EA/FONSI reported May 2026. Final investment decision not claimed.
- Stage
- Licensing
- Design
- Xe-100 (SMR)
- Technology
- High-temperature gas-cooled reactor (HTGR) · helium
- Operator(s)
- Dow
- Vendor(s)
- X-energy
- Location
- Dow UCC Seadrift / Long Mott · United States · precision: approximate
Industrial chemical site; approximate plant coordinates. - Coordinates
- 28.415, -96.711
- Electrical capacity
- 320 MWe (net) · scope: plant
- Thermal capacity
- —
- Modules planned
- 4
- Inclusion basis
- smr_by_design_class
- Confidence
- medium
- Last verified
- 2026-10-01 (publication/verification date)
Milestones & dated events
- NRC EA/FONSI for Long Mott: 2026-05 · actual · month · other
Regulatory actions
- Dow Long Mott construction permit application — construction_permit · under_review · NRC
Sources
- NRC / ANS Dow Long Mott Xe-100 EA-FONSI (reputable_press, accessed 2026-10-01)