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ColoradoHB25-1042025 Regular SessionHouse

Adding Nuclear Energy as a Clean Energy Resource

Sponsored By: Alex Valdez (Democratic), Dylan Roberts (Democratic), Larry Liston (Republican), Ty Winter (Republican)

Signed by Governor

Energy

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Bill Overview

Analyzed Economic Effects

2 provisions identified: 1 benefits, 1 costs, 0 mixed.

Nuclear projects qualify for clean energy programs

Colorado’s county clean-energy programs now recognize nuclear energy and hydrogen made from nuclear energy. Utilities can count nuclear toward carbon pollution goals under the expanded definition covering electricity generation and storage without carbon dioxide emissions. Both definitions include nuclear projects funded through the U.S. Department of Energy’s Advanced Nuclear Reactor Programs. The law takes effect at 12:01 a.m. the day after the 90-day period following final adjournment of the 2025 legislative session, unless a referendum petition is filed. If referred and approved by voters in November 2026, it takes effect upon the governor’s official declaration of the vote.

Nuclear facilities excluded from clean-energy tax treatment

Colorado excludes nuclear energy from the clean-energy resource definition used in this property-tax rule. Nuclear facilities do not gain the clean-energy property-tax treatment available under that rule. The law does not specify a resulting tax amount.

Sponsors & Cosponsors

Sponsors

  • Alex Valdez

    Democratic • House

  • Dylan Roberts

    Democratic • Senate

  • Larry Liston

    Republican • Senate

  • Ty Winter

    Republican • House

Cosponsors

  • Amy Paschal

    Democratic • House

  • Bob Marshall

    Democratic • House

  • Carlos Barron

    Republican • House

  • Chris Richardson

    Republican • House

  • Dusty Johnson

    Republican • House

  • Dan Woog

    Republican • House

  • Jarvis Caldwell

    Republican • House

  • Ken DeGraaf

    Republican • House

  • Max Brooks

    Republican • House

  • Monica Duran

    Democratic • House

  • Manny Rutinel

    Democratic • House

  • Matt Soper

    Republican • House

  • Ryan Gonzalez

    Republican • House

  • Rebecca Keltie

    Republican • House

  • Rep. R. Pugliese

    Affiliation unavailable

  • Ron Weinberg

    Republican • House

  • Rep. S. Bird

    Affiliation unavailable

  • Sheila Lieder

    Democratic • House

  • William Lindstedt

    Democratic • Senate

  • Barbara Kirkmeyer

    Republican • Senate

  • Byron Pelton

    Republican • Senate

  • Chris Kolker

    Democratic • Senate

  • John Carson

    Republican • Senate

  • Janice Marchman

    Democratic • Senate

  • Janice Rich

    Republican • Senate

  • Kyle Mullica

    Democratic • Senate

  • Lisa Frizell

    Republican • Senate

  • Marc Catlin

    Republican • Senate

  • Nick Hinrichsen

    Democratic • Senate

  • Sen. P. Lundeen

    Affiliation unavailable

  • Rod Pelton

    Republican • Senate

  • Robert Rodriguez

    Democratic • Senate

  • Scott Bright

    Republican • Senate

Roll Call Votes

All Roll Calls

Yes: 478 • No: 165

Senate vote • 4/28/2025

Third reading: Bill

Yes: 26 • No: 8

House vote • 4/15/2025

Conference committee report: Adopt

Yes: 42 • No: 22

House vote • 4/15/2025

Third reading: Bill

Yes: 44 • No: 17

House vote • 4/15/2025

Conference committee report: Repass

Yes: 41 • No: 23

Senate vote • 4/9/2025

Conference committee report: Repass

Yes: 23 • No: 11

Senate vote • 4/9/2025

Conference committee report: Adopt ccr

Yes: 34 • No: 0

House vote • 3/28/2025

Senate amendments: Not cncr

Yes: 46 • No: 17

Senate vote • 3/19/2025

Third reading: Bill

Yes: 23 • No: 11

Senate vote • 3/14/2025

Third reading: Bill

Yes: 29 • No: 5

Senate vote • 3/14/2025

Third reading: Bill

Yes: 30 • No: 4

House vote • 2/27/2025

Third reading: Bill

Yes: 38 • No: 24

House vote • 2/25/2025

Third reading: Bill

Yes: 43 • No: 18

House vote • 2/18/2025

Third reading: Bill

Yes: 59 • No: 5

Actions Timeline

  1. Governor Signed

    3/31/2025House

  2. Sent to the Governor

    3/26/2025House

  3. Signed by the President of the Senate

    3/25/2025Senate

  4. Signed by the Speaker of the House

    3/24/2025House

  5. Senate Third Reading Passed - No Amendments

    3/14/2025Senate

  6. Senate Second Reading Passed - No Amendments

    3/13/2025Senate

  7. Senate Committee on Transportation & Energy Refer Unamended to Senate Committee of the Whole

    3/10/2025Senate

  8. Introduced In Senate - Assigned to Transportation & Energy

    2/27/2025Senate

  9. House Third Reading Passed - No Amendments

    2/25/2025House

  10. House Third Reading Laid Over Daily - No Amendments

    2/21/2025House

  11. House Second Reading Special Order - Passed with Amendments - Committee, Floor

    2/20/2025House

  12. House Second Reading Laid Over Daily - No Amendments

    2/19/2025House

  13. House Committee on Energy & Environment Refer Amended to House Committee of the Whole

    2/13/2025House

  14. Introduced In House - Assigned to Energy & Environment

    1/8/2025House

Bill Text

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