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Supporting our mission through Environmental, Social and Governance practicesLearn More
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We’re reducing our carbon emissions 80% in Colorado by 2030.Learn More
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Keeping you connectedLearn More
to the ones you love -
Every transformation starts with a plan. Learn more about our responsible energy plan.Read now
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By 2024, 50% of your electricity will come from renewable sources.How we do it
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Together, we are part of something bigger…a cooperative.Learn why
More clean energy. Fewer emissions.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.

Earth Day 2021 Energy Saving Tips
Earth Day is coming up Thursday, April 22nd! Launched in 1970, Earth Day 2021 will mark the 51st anniversary of this holiday. This year’s theme is “Restore Our Earth.”

Lineworker Appreciation Day
Lineworker Appreciation Day, April 12th, 2021 - Celebrating the Teams Behind Electricity Transmission

Second EV Bus Rolls Out from Colorado's West Grand School District
A group of West Grand School District (WGSD) seniors had the honor to be the first official riders on the district’s new electric vehicle (EV) school bus during a dedication on March 18th in Kremmling, Colorado. The 78-passenger all-electric bus has a 120-mile range and three times the torque of the diesel bus it replaced.
45 Members
5,665 Miles of Line
More than One Million Consumers