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What it means to be a member

Tri-State is more than just an energy provider—we’re a community of member-owned utilities and businesses working together across Colorado, Nebraska, New Mexico, and Wyoming. As a cooperative, our strength comes from our members, and our board of directors reflects that diversity. These board members aren’t just representatives—they’re ranchers, farmers, and local business owners who live and work in the same communities served by our utilities. Their firsthand experience and deep local ties help guide the decisions that shape Tri-State’s future, ensuring we stay true to our mission and values.

With our members, we supply power and services that support the rural communities they serve. That is the cooperative difference—we answer to our neighbors, not shareholders.

Member List

70+

Tri-State was founded in 1952, which means we’ve been supplying electricity to the rural West for over 70 years.

1M

Together with our members, we serve nearly one million people and businesses across nearly 200,000 square miles.

5.32

We average 5.32 consumers per mile, vs. the national average of 32.4. We serve electricity to some of the most rural parts of the U.S.

Tri-State Board Chairman Tim Rabon

Meet the board chairman at the end of the line

The son of a World War II veteran and life-long New Mexico rancher, Tri-State Board Chairman Tim Rabon has seen the powerful effect of people coming together and discusses how that is the foundation of the co-op model.

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Power in numbers

Our association was formed to bring electricity to our members in the rural West when other power providers would not. Together we can capture economies of scale while sharing the costs and risks of supplying power to areas with few consumers, difficult terrain and a lot of ground to cover. Even today, some of our members serve as few as one connection per mile of distribution line.

But whether they’re in the desert, mountains, rural towns or plains—all our members still need reliable, affordable, responsible power. By pooling resources, collectively buying and selling power and managing the backbone of infrastructure that transports that power, we can negotiate better prices and build more efficient facilities than individual distribution cooperatives could on their own. This results in lower cost, more reliable electricity for our members.

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Bridging communities through member programs

We want to help members make electrification and efficiency upgrades accessible for all so we use rebate, education and financing programs. These options and incentives benefit our members and their communities and consumers. Together, we can Electrify and Save®.

Our programs

Empowering Cooperatives: Inside Mesa Hotline School’s Dedication to Excellence 

Empowering Cooperatives: Inside Mesa Hotline School’s Dedication to Excellence

Every May, over 500 line workers, teachers and volunteers gather in Grand Junction, Colorado at the Mesa Hotline School for the two-week annual learning event. The school attracts participants from across the United States, emphasizing safety and reliability in electrical transmission and distribution. It’s an energetic and transformative learning experience with the aim of equipping people with the knowledge and skills needed to keep the lights on for the communities they serve.  
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The Power of Collaboration - Electric Engines for a Cleaner Future

The Power of Collaboration - Electric Engines for a Cleaner Future

As a cooperative, we know that when people come together, we can achieve greater results than any one of us could have done alone.  Such was the case in the electrification of the Dahlia Station, a key depot along the Amarillo-to-Albuquerque pipeline managed by NuStar Energy – one of the nation’s largest independent liquids terminal and pipeline operators.  
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Communities Win with Rebates: Two Business Owners Make Rebates Work for Them

Communities Win with Rebates: Two Business Owners Make Rebates Work for Them

Cooperatives like Big Horn are always looking for ways to better serve their member-owners. One way of doing that is by offering rebates for energy-efficient home and business upgrades.
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Tri-State Generation and Transmission Association
Office: 303-452-6111
1100 West 116th Avenue
Westminster, CO 80234

Mailing address:
PO Box 33695
Denver, CO 80233-0695

©2025 Tri-State Generation and Transmission Association, Inc. Power supplier to the rural west.

  • About Us
    • Annual Report
  • Powering the Future
    • Our Energy Mix
  • Electrify and Save®
    • On-Bill Repayment
    • Programs
    • Quality Install
  • Media
    • Resources
    • Blog
    • Features
    • News
    • Newsletter
    • Podcast
  • Cooperative Benefits
  • Operations
    • Wildfire
  • Search