Pawnee-Smoky Hill 345-kV Transmission Project
Quick Facts
- Estimated cost: $155 million
- Proposed in-service date: January 2013
- Maps: Project Map
- Factsheet: Project Overview
This is a new, double-circuit capable, 345-kV transmission line to connect Public Service Company of Colorado’s (PSCo) existing Pawnee Substation near Brush, Colorado, to PSCo’s Smoky Hill Substation near Aurora, Colorado. The line will accommodate additional electric generation in northeast Colorado, particularly wind energy, and ensure reliable delivery of power to customers.
It will allow 300-500 megawatts of additional generation. It consists of three sections. The first section is approximately 79 miles of new 345-kV transmission extending from PSCo’s existing Pawnee Substation to a point east of PSCo’s existing Brick Center Substation, south of Bennett, Colorado. The second, or center section, consists of rebuilding approximately 15 miles of existing 230-kV wood pole structures to double-circuit, 345-kV-capable, steel-pole transmission. The third section is the last mile of transmission into the Smoky Hill Substation and consists of approximately one mile of new 345-kV transmission. This section also will be built to allow for double circuit, 345-kV capability.
PSCo filed the project Certificate of Public Convenience and Necessity (CPCN) in October 2007, which was approved by the Colorado Public Utilities Commission in February 2009. This project is in progress.
Project Maps
Regulatory Files
- CPCN Application
- Direct Testimony and Exhibits of Douglas W. Jaeger
- Direct Testimony and Exhibits of Joseph C. Taylor
- Direct Testimony and Exhibits of Gerald M. Stellern
- Direct Testimony and Exhibits of Danny J. Pearson
- Direct Testimony and Exhibits of Rick L. Thompson
