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Tri-State Generation and Transmission

Location: Craig, CO
Completed: 2009
Client: Tri-State Generation and Transmission INC.
Size: Upgrades to 1,274-megawatt plant


From 2004 to 2009 and counting, Guarantee Electrical’s consistent reliability and quality have led to 12 projects with Tri-State Generation and Transmission, Inc. The utility supplies power to 44 electric cooperatives, including 18 in Colorado, 12 in New Mexico, eight in Wyoming and six in Nebraska.

Most recently, Guarantee completed critical work at the utility’s flagship power plant in Craig, Colo. in 2009. The coal-powered, 1,274-megawatt plant ranks as the largest electrical generation facility in the state.

Guarantee workers replaced 40 linear actuators (devices regulating the amount of oxygen used by individual coal burners) and 210 thermocouples. They also updated input-output control cabinets with fiber optics.

Guarantee incurred no lost-time safety incidents throughout the project. Burns McDonnell served as engineer and owner’s representative.

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