All documents below in effect for the 2026 filing

Filing Details PUC 3627

Details included in the filing for the Colorado PUC Rule 3627 in 2026:

10-year transmission plan 2026

20-year conceptual scenario report 2026

Appendix A - Colorado transmission map

Appendix B - Denver Metro transmission map

Appendix C - Black Hills Energy transmission map

Appendix D - Black Hills Energy projects

Appendix E - Tri-State G&T 10-year transmission projects

Appendix F - Public Service Company of Colorado projects

Appendix G - Colorado Springs Utilities projects

Appendix H - Platte River Power Authority projects

Appendix I - WAPA RMR projects

Appendix J - CCPG stakeholder process

Appendix K - Public Service Company CCPG stakeholder comments

Appendix L - Black Hills CCPG stakeholder comments

Appendix M - Tri-State CCPG stakeholder comments

Appendix N - Black Hills supporting documents

Appendix O - Tri-State supporting documents

Appendix P - Public Service supporting documents

Appendix Q - How to access WECC base cases
 

Past filings

COPUC 3627 transmission projects and reference documents - 2024 filing

COPUC 3627 transmission projects and reference documents - 2022 filing