Our cooperative approach to a clean grid starts now. Learn how we’re transforming with our Responsible Energy Plan.

Tri-State's mission is to provide our member systems a reliable, affordable and responsible supply of electricity in accordance with cooperative principles.

Being a cooperative is more than just our business model. It’s how we approach working together. We share knowledge, listen, collaborate and solve problems together.

Federal Energy Regulatory Commission filing supports Tri-State clean energy initiatives

Tri-State Generation and Transmission Association has made tariff application filings with the Federal Energy Regulatory Commission. Tri-State expects...
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Tri-State, Delta-Montrose Electric Association reach agreement on withdrawal

Tri-State Generation and Transmission Association and Delta-Montrose Electric Association have reached a negotiated settlement for DMEA to withdraw fr...
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Tri-State announces transformative Responsible Energy Plan

Tri-State Generation and Transmission Association is pursuing an aggressive Responsible Energy Plan.
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1,500 EMPLOYEES

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43 MEMBERS

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5,665 MILES OF LINE

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1.3 MILLION CONSUMERS