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S&P Global Ratings issues new ratings for Tri-State

Tri-State’s ratings remain classified as investment grade, and Tri-State maintains its strong financial position.
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Tri-State expands opportunity for community solar

Tri-State board of directors approves community solar program recommended by membership’s Contract Committee.
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Tri-State statement on the United Power filing

Members are currently evaluating their wholesale power contracts to increase flexibility, including a proposal from United Power.
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Tri-State statement on La Plata Electric Association filing

Tri-State Generation and Transmission Association CEO Duane Highley's statement on the La Plata Electric Association (LPEA) filing.
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Tri-State, National Partners to Advance Low Carbon Energy Use Across Colorado

“Beneficial Electrification is one of the central commitments of our Responsible Energy Plan at Tri-State.” said Duane Highley, Tri-State’s CEO.
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Nucla Station retires from service 

The Nucla Station officially retired from service as a coal plant today, the cooperative announced. The end of generation occurred as the facility exh...
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Tri-State wholesale rate to remain unchanged for third consecutive year

For the third year in a row, Tri-State Generation and Transmission Association announced that wholesale rates for its 43 member systems will not incre...
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Three regional utilities announce decision to join Southwest Power Pool market

Basin Electric Power Cooperative, Tri-State Generation and Transmission Association, and the Western Area Power Administration (WAPA) announced Sept. ...
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Tri-State adds MIECO as new cooperative member

Tri-State Generation and Transmission Association today announced the addition of MIECO Inc., as its first new, non-utility member. The addition of MI...
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