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Project PlanningMicroreactor

Last Energy Haskell County microreactor plant

📍 TXDeveloper: Last Energy
Capacity
—
Expected Operation
—
Reactor Type
Last Energy PWR-20
Regulatory Status
Site control of 200 acres; ERCOT grid interconnection request filed; NRC pre-application engagement toward an Early Site Permit (application timing TBD)

Details

Primary Use
Demonstration / research

Research detail · verified 2026-10-10

Stage
Early stage (site agreement or plan only)
Commercial power
No (test, research, military or demonstration)
NRC docket
Pre-application project 99902140
Key dates
2025-02-28 project announced with site control and ERCOT interconnection filing
Not verified / conflicts
No 2026 news specific to Haskell found; latest 2026 Last Energy news concerns the PWR-5 pilot at Texas A&M-RELLIS (DOE Reactor Pilot Program, excluded). Light-water microreactor. NRC pre-application page seen only via search result (project number from snippet).
Sources
  1. https://www.world-nuclear-news.org/articles/last-energy-plans-texan-microreactor-plant
  2. https://ww2.nrc.gov/reactors/new-reactors/advanced/who-were-working-with/pre-application-activities/last-energy
State Policy Context
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