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 April 24, 2025
PSCo Generation Interconnection Requests and Studies - Pre 2019 Queue Reform
Last Updated March 23, 2021
PSCo Generation Interconnection Requests and Queue
Last Updated April 3, 2025
Generator Replacement Requests
Last Updated April 24, 2025
Attachment N and Attachment P Generation Study Reports
Last Updated September 23, 2024
Generation Interconnection Studies prior to 2017
Last Updated January 3, 2023
Operating Guides & Studies
Last Updated October 11, 2024
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
1800 Larimer St.
Denver, CO 80202
e-mail: PSCoInterconnection@xcelenergy.com
