Northern Colorado Area Plan

WAPA Ault to Cloverly Transmission Line

Voltage:
115/230 kV line
Estimated cost:
$65 million
Target in-service:
2020

The Northern Colorado Area Plan will increase electric reliability and load-serving capability of the Xcel Energy electric transmission system in and around the Greeley area, and will provide accommodation for new generation resources in the region. The project will replace approximately 42 miles of the existing, lower voltage transmission lines with approximately 25 miles of new, higher voltage transmission.

The proposed Western Area Power Authority (WAPA) Ault to Cloverly Transmission Line includes approximately 25 miles of new 115 kilovolt (kV) and 230 kV transmission line, between the WAPA Ault Substation, located approximately five miles northwest of the town of Ault and the Cloverly Substation, located approximately one mile northeast of Greeley.  The project also includes two new substations and one substation expansion. 

The first phase of the project includes building approximately seven miles of 230 kV transmission line between the WAPA Ault Substation and a new substation near the town of Ault. Pending approvals, the entire project is expected to be completed by 2020.

Project Overview Map
WAPA-Ault Map

Public Open House

A public open house was held in Ault on October 26 to serve as an opportunity for residents to learn more about the project, view potential route maps, ask questions and provide feedback on the project and potential routes. Another open house will be held in early 2018 for the remaining segments of the project.

Project Need and Benefit

The Northern Colorado Area Plan is part of an initiative to replace the existing 44 kV system in the area with higher voltage transmission facilities. The 44 kV system is one of the oldest transmission assets owned by Xcel Energy with some of the infrastructure dating back to the early 1900’s. Replacement of this lower voltage system will increase reliability and load serving capability in and around the area, and will provide accommodation for new generation resources in the region.

The Northern Greeley Plan has been a part of the company’s long-range transmission plans since 2013.

Regulatory Filings

Xcel Energy filed a Certificate of Public Convenience and Necessity (CPCN) application with the Colorado Public Utilities Commission (CPUC) on March 9, 2017 to construct the Northern Colorado Area Plan. 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 web site 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. Those issues are determined through a separate local government siting process. Xcel Energy will file for development permit approvals with Weld County and the towns of Ault and Eaton in fall 2017.

Project Components

The proposed Northern Colorado Area Transmission Project consists of the following components:

  • 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. Husky is expected to be located west of the existing Xcel Energy 44 kV Ault Substation (different than the substation of the same name operated by WAPA). The transmission will be approximately seven miles long and built double-circuit 230 kV capable. Only one circuit will initially be installed and operated at 230 kV.
  • Husky Substation
    • This new substation will replace the Xcel Energy Ault 44 kV Substation, which will be decommissioned. The Husky Substation will also accommodate distribution upgrades that increase reliability.
  • Husky – Graham Creek 115 kV line
    • The new line will be approximately seven miles and be built double-circuit 230 kV capable. 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 will be decommissioned. The Graham Creek Substation will be constructed to accommodate distribution upgrades and improve system reliability.
  • Graham Creek – Cloverly 115 kV line
    • This new line will be approximately eleven miles and be built double-circuit 230 kV-capable. Only one circuit will initially be installed and operated at 115 kV. Eight miles of that new transmission will be built double-circuit 230 kV capable. The remaining three miles are already constructed to be 115 kV capable.
  • Cloverly Substation (Upgrade)
    • Two transformers will be added to the Cloverly Substation as part of the termination of the new line from Graham Creek and to allow for future load interconnection requests. The Cloverly modifications will also accommodate distribution upgrades. Cloverly Substation will eventually replace the Pleasant Valley Substation, which will be decommissioned.

Contact Us

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

Additional Information

Project Schedule
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
Northern Colorado Area Plan Fact Sheet
Transmission Infrastructure

Xcel Energy MaritzCX

We'd welcome your feedback!

Thank you for visiting Xcel Energy. You have been selected to participate in a brief customer satisfaction survey to let us know how we can improve your experience.

The survey is designed to measure your entire experience, so please look for it at the conclusion of your visit

This survey is conducted by an independent company MaritzCX, on behalf of the site you are visiting.

Privacy Policy