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We’re reducing our carbon emissions 80% in Colorado by 2030.Learn More
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We’re delivering moreLearn More
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Keeping you connectedLearn More
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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.

Energy Performance Contracting (EPC) Secured Financing to Improve Energy Efficiency, Learning Environment for Nebraska High School
$30,000 in rebates from Niobrara Rural Electric Association and Tri-State Energy help support Sioux County Schools’ energy-efficient heat pump and LED lighting building project.

Induction vs. Gas Cooktops
Are you ready to switch out your gas cooktop? The equipment you use to cook your food is just as important as the ingredients you use. If you are looking to switch out gas for electricity or buy an induction cooktop or range, here are some pros and cons for each, and tips for going with induction.
45 Members
5,665 Miles of Line
More than One Million Consumers