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Strength in a
diverse energy mix

Building for the future

We’re evolving our energy mix now to support our members’ needs into the future.

When we design our energy mix — including solar, wind, natural gas, batteries and hydro — we can supply power for future generations. Whether strengthening for storm resilience or meeting the growing energy demand, we’re safeguarding reliability for the rural West. The generation we’re building for will be as clean and affordable as possible.

Learn how we plan

Employees at Pyramid Gas Plant

Power when you need it most

An on-demand resource like a natural gas plant is critical for shoring-up capacity during times of high energy use, low renewable output, or extreme weather conditions. Having multiple sources of generation is how we maintain reliability.

Low-cost, clean power

We pool resources to develop larger, utility-scale renewables so members receive competitive prices for wind and solar energy. Once built, renewables have a low operating cost. They eliminate fuel costs by harnessing the abundant solar and wind resources across the West.

Many of these large wind and solar farms are located in our members' service territories so that the tax benefits stay within the communities served by cooperatives.

close-up of wind turbine

Partnering with our members to add flexible, clean power

Our Bring Your Own Resource program provides flexibility to Tri-State members by allowing them to develop their own projects that reflect the unique advantages and needs in their service area and keep consumer costs low. Recently accepted by federal regulators, these projects undergo independent evaluations to meet reliability, economic, and environmental criteria. We expect many future projects in the program to utilize renewable energy sources. This will help us continue our commitment to achieving 50% renewable energy usage by our members in 2025, with a goal of 70% by 2030.

Our recent renewable projects

110MW
Dolores Canyon Solar, Colorado
(upcoming)
145MW 
Axial Basin Solar, Colorado
(upcoming)
200MW
Escalante Solar, New Mexico
100MW
Spanish Peaks Solar, Colorado
40MW
Spanish Peaks II, Colorado
What we're building now is going to serve our members into the 2060s. It's not just our kids, but our grandkids. They're going to benefit from what we're building today.
Duane Highley, Tri-State CEO
200 MW Escalante Solar Project near Grants, New Mexico
Diversifying Our Portfolio - Learn 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

©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
  • Search