Tracker · Pre-application

Last Energy

The U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities with Last Energy regarding a future application at Last Energy’s Haskell, Texas site. The site would house Last Energy’s PWR-20 microreactor generating 20MWe gross electrical output.Additional information on pre-application activities can be obtained from ADAMS using a search by docket number Last Energy pre-application documents (NRC Docket 99902140).

Who: Last Energy
Design: PWR-20
Reactor type: Light Water Reactors
Status: Active on the NRC index
What: Preapplication activities associated with a future application
When: May 2025 to Present
Site: Not stated on the NRC page in this snapshot.
NRC page reviewed: Tuesday, September 15, 2026

Dockets

99902140

Status timeline

Dates are printed as the NRC page prints them, including the actual (A) or target (T) mark.

The NRC page in this snapshot does not list a milestone table.

NRC activity table

Product	Type	Reference	Status
Last Energy Regulatory Engagement Plan – Feb 2025	Regulatory Engagement Plan	ML25038A060	No Review Requested
Last Energy White Paper: Hermetically Sealed Containment	White Paper	ML25098A065	Feedback ProvidedML25106A008
Revised Last Energy White Paper: Hermetically Sealed Containment	White Paper	ML25146A001	Feedback ProvidedML25163A036
NRC-Last Energy initial technical pre-application meeting notice	Public Meeting Notice	ML26120A094	No Review Requested
Last Energy Regulatory Engagement Plan, Revision 1.0 – July 2025	Regulatory Engagement Plan	ML26217A115	No Review Requested
NRC-Last Energy initial technical pre-application closed meeting summary	Meeting Summary	ML26246B019	No Review Requested

Related Federal Register notices

Included when a notice shares a docket printed on the NRC page, or when the notice title repeats the project or design name. Other NRC notices are left out.

No in-scope Federal Register notice is linked to this project.

NRC project page · Applicant website listed by the NRC