Wyoming-Colorado Intertie Project (WCI)

The WCI Project addresses a long-standing transmission constraint along the Wyoming-Colorado border known as TOT 3. The 345 kV line originates at the Laramie River Station near Wheatland and terminates at PSCO’s Pawnee sub-station in northeastern Colorado. The latest status is as follows:

  • New 345 kV AC transmission line between Wyoming and the Front Range of Colorado delivering Wyoming generation in Wyoming to Colorado
  • Capacity: 850 MW
  • Length: 180 miles
  • In-service Date: 2014-2015
  • Cost: < $300 Million
  • Developers: LS Power; Western Area Power Administration; Wyoming Infrastructure Authority
  • On July 14, 2011, an application was received for 100% of the capacity.  The application triggered a 30 day period to allow 3rd parties to make application under the terms of the Open Access Transmission Tariff (OATT).
  • WECC Path Rating Process: Phase I complete; currently in Phase II
  • ROW & Permitting Status: Will proceed after the awarding of capacity
  • Status:
    • FERC approval to sell transmission rights at negotiated rates
    • FERC approved OATT
    • Project has been entered into the WECC, CCPG regional planning group 
  • Business Model: independent model, end market(s): LSE’s in Colorado
  • Complementary Projects: PSCO’s expansion of their system in N/E Colorado and the High Plains Express
  • Contact Information:  Adam Gassaway at agassaway@lspower.com or 636-532-2200
  • Project Link:   www.WCIntertie.com