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In early December, Tri-State crews energized the association's new Bayfield-Durango 115-kilovolt transmission line after completing a $5.3 million ...

On October 6th and 7th representatives from Tri-State's transmission maintenance and geography information systems departments participated in Cons...

Columbus Electric Cooperative and Tri-State G&T gave a tour of the geothermal system at Ruben S. Torres Elementary School in Deming, NM and present...

Representatives from Highline Electric Association, Tri-State, Ormat Technologies and Kinder Morgan Pipeline were in Peetz, Colo., June 24 to dedic...

In keeping with its efforts to diversify its resource portfolio to meets its member co-ops power requirements, Tri-State has signed a 20-year agree...

Take a look at some of Tri-States operations and facilities located throughout its 250,000 square-mile service territory.

Colorado Gov. Bill Ritter toured Palmer Ridge High School, getting a firsthand look at the largest geothermal heating and cooling system in Colorad...

Tri-State Generation and Transmission Association has entered into an agreement with Tempe, Ariz.-based First Solar, Inc. to develop a 30-megawatt ...

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