# Federal Register #2026-22577

NRC review of limited early-work authorization for Last Energy’s proposed PWR-20 facility

**Posted:** November 05, 2026
**Identifier:** 2026-22577

The NRC notice concerns early construction authorization for Last Energy’s proposed PWR-20 nuclear facility in Caldwell County, Texas.
- Government buyer/regulator: U.S. Nuclear Regulatory Commission (NRC), including its Office of Advanced Reactors; no purchase is being solicited.
- Applicant: Last Energy, Inc., which submitted a phased construction permit application for its proposed Caldwell Site facility.
- Requested authorization: Limited work authorization for subsurface preparation, grout backfill, steel liner installation, and driving steel H-piles for the reactor vessel foundation.
- Application materials include financial qualifications, a preliminary safety analysis report for the authorized work, an environmental report, and a site redress plan.
- The NRC may begin a detailed technical review if it determines the request is acceptable for docketing. No products, services, quantities, or part numbers are requested for purchase.

### Description

The U.S. Nuclear Regulatory Commission received the first part of Last Energy, Inc.’s two-part phased construction permit application, requesting a limited work authorization for a proposed utilization facility at the Caldwell Site in Caldwell County, Texas. The request seeks approval for early construction activities for the PWR-20 nuclear reactor, including subsurface preparation, grout backfill, installation of a steel liner, and driving steel H-piles for the reactor vessel foundation. The application also includes financial qualifications, a preliminary safety analysis report, an environmental report, and a site redress plan. If the NRC finds the request acceptable for docketing, it will begin a detailed technical review.

[View original listing](https://www.federalregister.gov/documents/2026/11/05/2026-22577/last-energy-inc-phased-construction-permit-application-limited-work-authorization)