CCPG - Rule 3627 Transmission

The Colorado Public Utilities Commission (CPUC) requires regulated electric utilities to submit annual 10-year plans for additional electric transmission projects in Colorado. Included in this rule (known as CPUC Rule 3627) is a requirement that utilities provide government agencies and other stakeholders with an opportunity for meaningful participation in the planning process. In February 2016, Black Hills, Tri-State, and Xcel Energy submitted the most recent transmission plans to the CPUC.

2016 Transmission Filing

2014 Transmission Filing

2012 Transmission Filing


CCPG Subcommittees, Work Groups, Task Forces and Projects


3627 Compliance Subcommittee
DEEP Subcommittee
Foothills Subcommittee
Northeast Colorado Subcommittee
San Luis Valley Subcommittee
Southeast Wyoming
Western Slope
WY/SD Common Use  


Work Groups

Base Case Coordination
Conceptual Planning
Short Circuit Data Base
TPL Studies
Voltage Coordination


Task Forces

Colorado Energy Plan
Lamar – Front Range
Rush Creek

Colorado Planning

Rule 3627
Senate Bill 100 Colorado


Lamar – Front Range - 2013
Weld County Expansion