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Whatever the future holds
we'll power it

 

More clean energy, fewer emissions

Tri-State Generation and Transmission is a wholesale power supplier based in Westminster, Colorado. We provide electricity for 42 utilities across the rural west. Together, with our members, we keep the lights on for one million energy consumers in Colorado, Nebraska, New Mexico and Wyoming.

As a not-for-profit, we carefully consider how we spend each dollar to operate and maintain a resilient system, keeping dependable energy just a switch away.

Learn how we do it

Our principles guide our work

Responsibility has always been a part of how we approach our business—we’re responsible for more than just providing electricity. We do it with respect for the natural environment and resources we share, the communities we serve, and the employees we support.

Learn more about our Environmental, Social and Governance

 

 

Where we serve

 

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Find your co-op

 

 

By the numbers

70+
years of providing reliable energy
1M+
homes and businesses powered daily
50%
renewable energy by 2025
 

Member-driven,
not profit-driven

At Tri-State, we’re not just an electric utility, we’re a network. As a cooperative, we don’t answer to shareholders, we answer to our neighbors. We work together. From supporting each other in times of need to access to low-cost utility-scale renewables, membership in Tri-State delivers more value today than ever before—and that’s the cooperative difference.

Learn more about the cooperative difference

Electrify and Save

Clean energy can save you money and benefit the environment. Learn how going electric can lower your monthly energy bills, reduce emissions, and improve quality of life.

Electrify your life

 
Electric gardening tools, Warm Weather Tools to Get Your Yard Summer Ready

Warm Weather Tools to Get Your Yard Summer Ready

There’s nothing like relaxing outside and soaking up the fresh air, but sometimes our yards need a little work before we can fully enjoy them. Don’t sweat it, with the help of a few tools you’ll have your yard summer-ready in no time.  
Peter Rusin, Member Relations Manager
Read more >
Energy Saving Maintenance Checklist for Small Businesses

Energy Saving Maintenance Checklist for Small Businesses

Even if you don’t own a small business, you likely know someone who does. They’re the lifeblood of our rural communities, from the neighborhood barber to the downtown coffee shop. Whether you’re the owner or a loyal patron, running a business is a lot of work. Small business owners do it all, and that often includes maintenance that can help reduce energy costs. Our Energy Saving Maintenance Checklist for Small Businesses is a good place to start if you're working on your list of to-dos.
Peter Rusin, Member Relations Manager
Read more >
Walther Potato Farms Combines Hard Work and Smart Choices 

Walther Farms Combines Hard Work and Smart Choices 

Not all spuds are created equal. In fact, more than 1,000 varieties of potatoes are grown across the globe but there’s only one type suitable for potato chip production. Tri-State caught up with the crew at Walther Farms in Lisco Nebraska, a third-generation, family-owned chipping potato business operating in eight states. 
Peter Rusin, Member Relations Manager
Read more >
 

Tri-State seeks certainty for member contract termination procedures

Tri-State set to create procedures necessary to provide certainty and facilitate member withdrawals.
Read more >

Resiliency of Tri-State highlighted at 71st Annual Meeting of its membership

Resiliency ensures Tri-State always serves its mission to deliver reliable, affordable and responsible power to its members.
Read more >

Tri-State files revisions to its Contact Termination Payment methodology tariff

Withdrawal Agreement will establish needed procedures, create certainty for departing and remaining members, and Tri-State.
Read more >

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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

©2023 Tri-State Generation and Transmission Association, Inc. Power supplier to the rural west.

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