Pawnee-Daniels Park Project

Estimated in-service date: 2019
Voltage: 345 kV line
Estimated length: 125 miles
Estimated cost: $178 million

The proposed Pawnee-Daniels Park transmission line project consists of a new double-circuit 345 kilovolt (kV) transmission line between our Pawnee Substation near Brush, Colo., and the Daniels Park Substation south of the Denver metro-area. The project area includes Arapahoe and Douglas Counties, City of Aurora and the Town of Parker.

Project Purpose

The 125-mile project is part of the company’s Senate Bill 07-100 portfolio of transmission plans and is a critical component of the Colorado long-range transmission plan. The project will allow for the interconnection and delivery of new generation resources, including renewable energy to Front Range customers to meet new load growth and improve system reliability.

Additional Information

The Colorado Public Utilities Commission (CPUC) approved a Certificate of Public Convenience and Necessity application for the project on April 9, 2015.

The CPCN includes an in-service date for the project of May 2022 with construction beginning in 2020. However, in late 2015, Congress extended the Production Tax Credit for new wind generation projects, but with a declining recovery schedule for projects that start construction after 2016. As a result of this, we filed with the CPUC asking them to modify their previous decision in order to accelerate the in-service date to October 2019 and the construction start date to January 2017 for the Smoky-Hills Daniels Park portion of the project. In September 2016, we, along with multiple parties, agreed to a settlement that included moving the in-service date to 2019. The settlement agreement was approved by the CPUC on September 30, 2016. On October 20, 2016 the CPUC issued its written approval. View the settlement agreement. View attachment. Pending city and county approval, construction on the Harvest Mile Substation in Arapahoe County is scheduled to start in April, 2017.  Construction of the transmission line between Smoky Hill to Daniels Park is scheduled to begin in January 2019. Advancing the in-service date of the Pawnee-Daniels Park project will help ensure that customers reap the tax credit benefits which significantly reduce the cost of wind generation.

Arapahoe County

In September 2016 we filed a 1041 application and a Location and Extent application with Arapahoe County in conjunction with the local permitting process. After an initial round of County comments, the application was resubmitted on November 17, 2016 and the application was deemed complete. The application has now been sent out for the external referral period, which closes on 12/27; any questions regarding the application can be directed to the case planner at Arapahoe County, Bill Skinner at 720-874-6651.

Upcoming Public Meetings

Planning Commission
When: May 2, 6:30 p.m.
Where: Lima Plaza Campus, Arapahoe Room
             6954 S. Lima St., Centennial, CO 80112

Board of County Commissioners
When: May 16, 9:30 a.m.
Where: Administration Building, East Hearing Room
             5334 S. Prince St., Littleton, CO 80120

City of Aurora

In mid-2017, it is anticipated that a Site Plan application will be filed with the City of Aurora. This will be the last jurisdictional approval required for the project, which will be decided on before the end of 2017.

Douglas County

On November 21, 2016 we filed a Location & Extent application with Douglas County in conjunction with the local permitting process for the project. The application was deemed complete by County staff and sent out for the referral period, which ended on December 12, 2016. The Planning Commission approved the application during a public hearing in February, 2017. The approval includes 9.4 miles of transmission line that will run through Douglas County as well as substation improvements at Daniels Park Substation.

Town of Parker

In March 2016 we filed a local land use permit application with the Town of Parker for the proposed transmission line. The permit applications can be viewed by going to the Town of Parker website. Click on “Search” under the Projects section and enter to following case numbers for each application; SP16-010 and Z16-008. On July 5, 2016, the Parker Town Council approved our local land use permit application for that portion of the Pawnee-Daniels Park project that crosses the Town of Parker (5.4 miles). Our application includes the company’s preferred route which parallels the existing 230 kV transmission line through the Town of Parker.

If you have a question or comment surrounding the Pawnee-Daniels Park project please send us a message at

Project Maps

Historical Maps

Pawnee-Daniels Park Project Overview Video

Interested in providing your input? Download our Public Comments Form and submit it to us at your earliest convenience.