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Transmission Planning Documents

 

Each year, Tri-State develops a 10-year transmission plan that assesses future transmission needs for Tri-State’s 44 member electric cooperatives. The plan is developed in conjunction with WestConnect and the Colorado Coordinated Planning Group (CCPG), formal regional transmission planning organizations recognized by the Western Electricity Coordinating Council (WECC).

 

 

 

Transmission Planning Documents

 

 

Tri-State's assessment of the transmission needs of its network customers over the 10-year planning horizon in its Load and Resource Transmission Analysis.

 

 

 

The most current information on Open Access Transmission Tariff (OATT) and Generator Interconnection Procedures (GIP) can be accessed on Tri-State's Open Access Same-time Information System (OASIS):

 

 

 

The GIP, including Generator Interconnection Agreement (GIA) can be found under Attachment K. Tri-State’s OATT includes a description of the transmission planning process as Attachment L.

 

 

 

Tri-State uses the following Facility Rating Methodology and Reliability Criteria in the transmission planning process.

 

 

 

Tri-State’s Transmission Plan, which is comprised of individual projects, provides for an effective utilization of the transmission system on a best-cost basis using the "single-entity concept," which takes into consideration the total costs of Tri-State, the Member, and other affected utilities. Economic studies were completed between February 2010 and 2012.

 

 

 

 

Links

 

 

Tri-State is an active participant in regional transmission planning with other area utilities, including the CCPG and WestConnect.

 

 

 

 

 

Updated: January 27, 2012

 

 

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