# 2025-15127: NRC Reviews Clinton Nuclear Plant's 20-Year Extension

2025-15127, Constellation Energy Generation, LLC; Clinton Power Station, Unit 1; Final Supplemental Environmental Impact Statement, is a Federal Register notice from Nuclear Regulatory Commission published 2025-08-08 (as of 2026-06-08).

- Canonical: https://policyrisk.com/federal-register/2025-15127
- As of: 2026-06-08
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2025-15127
- Title: Constellation Energy Generation, LLC; Clinton Power Station, Unit 1; Final Supplemental Environmental Impact Statement
- Type: Notice
- Agencies: Nuclear Regulatory Commission
- Citation: 90 FR 38517
- Published: 2025-08-08
- Effective: unknown
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-08

## In one line

NRC Reviews Clinton Nuclear Plant's 20-Year Extension

## Summary

The Clinton Power Station in Illinois wants to keep running for 20 more years, and the NRC checked how this might affect the environment. They looked at other options too, like shutting it down or using different power sources. This decision impacts local communities and energy plans, with no big surprises on costs or timing.

## Abstract

The U.S. Nuclear Regulatory Commission (NRC) has published a final Supplemental Environmental Impact Statement (SEIS), issued as NUREG-1437, Supplement 63, "Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding License Renewal for Clinton Power Station, Unit 1, Final Report." This SEIS evaluates the environmental impacts of the license renewal of Facility Operating License No. NPF-62 for an additional 20 years of operation for Clinton Power Station, Unit 1 (CPS), as well as alternatives to license renewal. CPS is located in DeWitt County, approximately six miles east of the city of Clinton in east-central Illinois. Alternatives to the proposed action of license renewal for CPS include the no-action alternative and reasonable replacement power alternatives.

## Effects PRIA read

- 20-Year License Renewal Evaluation: mixed, low. If you live near Clinton, Illinois, the Nuclear Regulatory Commission published a final Supplemental Environmental Impact Statement that evaluates the environmental effects of extending Clinton Power Station, Unit 1's operating license for an additional 20 years. The report examines alternatives in…

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## Sources
- [2025-15127 on federalregister.gov](https://www.federalregister.gov/documents/2025/08/08/2025-15127/constellation-energy-generation-llc-clinton-power-station-unit-1-final-supplemental-environmental)
- [2025-15127 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2025-08-08/pdf/2025-15127.pdf)

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Source: PRIA, https://policyrisk.com/federal-register/2025-15127 (as of 2026-06-08).