Select the following links for information on  Public Service Company of Colorado transmission studies.
Colorado Long Range Transmission Group Information
Last Updated July 12, 2006

PSCo Transmission Service Studies (DNR, DNL, T-T, T-L)
Last Updated June 19, 2023

PSCo Generation Interconnection Requests and Studies - Pre 2019 Queue Reform
Last Updated March 23, 2021

PSCo Generation Interconnection Requests and Studies
Last Updated February 2, 2024

Generator Replacement Requests
Last Updated October 6, 2023

Attachment N and Attachment P Generation Study Reports
Last Updated September 6, 2023

Generation Interconnection Studies prior to 2017
Last Updated January 3, 2023

Operating Guides & Studies
Last Updated March 21, 2023

Miscellaneous Information
Last Updated January 5, 2021

Transmission Planning Documents
Last Updated September 14, 2023
 

For questions or further information, please contact:

Krystal Schuldheisz
Public Service Company of Colorado
P.O. Box 1078
Golden, CO 80402
e-mail:  PSCoInterconnection@xcelenergy.com