Avery Substation Project

Avery Substation Project

Estimated Length: 1.5 miles
Voltage: 230 kV
Estimated Cost: $14.8 million
Estimated In-service Date: Spring 2020

The Avery Substation Project
Xcel Energy is proposing to construct the Avery Substation and Transmission Line project. The project consists of:

  • A new electric distribution substation (Located in the Town of Windsor)
  • An associated overhead double-circuit 230,000-volt (230-kV) electric transmission line (0.5 miles in Unincorporated Weld County, 0.4 miles in Town of Severance and 0.5 miles in Town of WIndsor)
  • Overhead distribution feeder lines near the towns of Windsor, Severance and Timnath, Colorado

The Avery Substation will occupy approximately 10 acres and contain an equipment enclosure, transformer, capacitor bank and switches to support the distribution feeders. The project has a target in-service date of spring 2020. A Certificate of Public Convenience and Necessity (CPCN) was filed with the Colorado Public Utilities Commission (CPUC) on March 13, 2015. Pursuant to Colorado Senate Bill 07-100 requirements, the CPUC approved the CPCN application on May 13, 2015.

Public Service Company of Colorado held an open house meeting on August 24, 2016 and has been taking public comments since then.  The public comment period has officially closed as of October 31, 2016. However, there will be another chance for the public to get involved when public hearings are scheduled and hosted by Weld County. That date will be posted here as soon as it is available. Applications were filed with the Town of Windsor in December 2018, including an Administrative Site Plan, Minor Subdivision and Conditional use Grant. The Administrative Site Plan and Minor Subdivision applications are processed administratively; however the Conditional Use Grant will require a public hearing in front of both the Planning Commission and Town Board. Once the dates for the public hearings are determined, they will be posted to this site.

Project Maps
Service Area
Potential Sites
Opportunities and Constraints
Preferred Site & Route
Substation Photo-Simulation

Project Purpose
The new Avery Substation will enable us to better serve existing and new load in the vicinity of Timnath, Severance and Windsor caused by growth of these communities along the Interstate 25 corridor. Avery Substation will assist in providing back up to the existing Cobb Lake and Windsor Substations, which are reaching their capacity. It also will provide reliability to our existing and future customer load.

Construction Details
Power for the proposed 1.5 mile 230-kV transmission line will be provided by interconnecting the existing Platte River Power Authority’s (PRPA) Timberline-Ault 230-kV transmission line. This connection will supply the proposed Avery Substation with the electrical supply needed to power the distribution feeders serving the immediate communities.

Carly Rowe
Siting and Land Rights Manager

Lucas McConnell
Area Manager, Community and Local Government Affairs