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PUC staff says Tri‑State's Sidney Holcomb 345 kV project needs CPCN; commissioners agree

Public Utilities Commission · April 22, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

Commission staff told the Public Utilities Commission that Tri‑State's amended Rule 3206 filings do not suffice to introduce the new Sidney Holcomb 345 kV transmission project (an estimated 360‑mile, roughly $1 billion line) and recommended a CPCN or formal application; commissioners agreed and noted limited Colorado jurisdiction and member protections should be addressed.

Commission staff told the Public Utilities Commission on April 22 that Tri‑State's amended Rule 3206 report is not the appropriate vehicle to introduce the Sidney Holcomb 345 kV transmission project and recommended the matter proceed through a Certificate of Public Convenience and Necessity (CPCN) or a dedicated application.

Bill Dalton, staff engineer, reviewed Tri‑State's second and third amended Rule 3206 reports. He said three Colorado interconnection projects (the Story 230 kV substation bay addition, the Duck Creek interconnect for a wind project,…

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