Northern Colorado Area Plan

WAPA Ault to Cloverly Transmission Line

  • Voltage: 115/230 kV line
  • Target in-service: 2022

Project Update

Our Colorado operating company, Public Service Company of Colorado (PSCo), has requested to withdraw our Northern Colorado Area Plan (NCAP) 1041 application with Weld County.  This decision was made based on public comment during the planning commission hearing and comments received since filing the 1041 application.

We are making this request to allow for additional public and stakeholder outreach on the overall project and to review additional route and site alternatives.

We are committed to working with landowners and community members to find a viable solution to meet current and future energy needs in the area.

The Northern Colorado Area Plan will enhance electric reliability of our grid north of Greeley. The project is an important step in a comprehensive plan to upgrade the region’s infrastructure and modernize the transmission system.

Schedule (Pending Approval)

2018 - File local, state, federal permits
2019/2020 - Local permitting
2021 - Begin construction of transmission line
2022 - Project completed

Project Permits and Public Hearings

We filed a 1041 permit with Weld County in August 2018 to determine approval and final route of the proposed transmission lines. We have requested to withdraw an amended application that was submitted to Weld County in April 2019. You can review the latest application on the Weld County website by clicking on "Search Applications" under the "Planning" heading and entering USR18-0100 in the "Record Number" field. Then under "Record Info", click on "Attachments".

A Site Plan submittal for the Husky Substation in the Town of Ault was submitted in November, 2018 and approved in February, 2019.

When proposing a high-voltage transmission line project, investor-owned utilities must file a CPCN application with the CPUC. You can review all regulatory filings on the CPUC website by entering 17A-0146E in the 'Proceeding Number' field. The CPCN process allows the Company to proceed with implementation, but does not decide the specific routes and locations of the transmission lines and substations or the permitting processes. Those issues are determined through a separate local government siting process.

The Colorado Public Utilities Commission (CPUC) approved a Certificate of Public Convenience and Necessity (CPCN) application on March 1, 2018 to allow us to construct the Northern Colorado Area Plan.

Project Components

The proposed Northern Colorado Area Transmission Project consists of the following components, which will improve electric reliability of the entire grid north of Greeley, including Ault and Eaton:

  • WAPA Ault - Husky 230 kV transmission line
    • The line will be built from the existing Western Area Power Administration (WAPA) Ault Substation to a new Xcel Energy Husky Substation. The new transmission would be approximately seven miles long and built double-circuit 230 kV capable. Only one circuit will initially be installed and operated at 115 kV.
  • Husky Substation
    • This new substation would replace the Xcel Energy Ault 44 kV Substation, which would be decommissioned. The Husky Substation would accommodate distribution upgrades that improve system reliability. 
  • Husky - Graham Creek 115kV line
    • The new line would be approximately 7.7 miles and be built double-circuit 230 kV cable. Only one circuit will initially be installed and operated at 115 kV.
  • Graham Creek Substation
    • This new substation will replace the Xcel Energy Eaton 44 kV Substation, which would be decommissioned. The Graham Creek Substation would accommodate distribution upgrades and improve system reliability. 
  • Graham Creek-Cloverly 115 kV line
    • The new line would be built double-circuit 230 kV capable. Only one circuit will initially be installed and operated at 115 kV. The remaining three miles are already constructed to 115 kV capable.

Contact Us

Email or call us at 888.678.7640. You can also submit your comments using a comment form.

Additional Information


April 2018 Direct Mail Piece
Project Schedule
January 2018 Direct Mail Piece
October 2017 Direct Mail Piece
Siting and Permitting
EMF Fact Sheet
Birds and Power Lines
Safety Around Powerlines
Working with Landowners
Overhead vs. Underground
Transmission Line Construction Process
Transmission Infrastructure
Project Need
Siting Criteria