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