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The Tri-State Annual Meeting has been postponed

We are working to reschedule the meeting for later this year.
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Tri-State members advance greater contract flexibility, starting by increasing member self-generation opportunities by an additional 10% of system demand

The board of directors of Tri-State has committed to greater member flexibility through partial requirements contracts.
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Tri-State announces transformative Responsible Energy Plan actions to advance cooperative clean energy

“We’re not just changing direction, we’re emerging as the leader of the energy transition,” said Duane Highley, Tri-State’s CEO.
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Tri-State announces retirement of all coal generation in Colorado and New Mexico

Today Tri-State announced the retirement of its remaining New Mexico coal-fired power plant and its remaining Colorado coal plants and coal mine.
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Tri-State seeks dismissal of Colorado Public Utilities Commission complaint

Several Colorado members of not-for-profit cooperative power supplier Tri-State Generation and Transmission Association expressed support today.
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Tri-State announces funding for Yampa River Fund

Tri-State Generation and Transmission Association announced today that it will donate $60,000 to the Yampa River Fund over the next three years.
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S&P Global Ratings issues new ratings for Tri-State

Tri-State’s ratings remain classified as investment grade, and Tri-State maintains its strong financial position.
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Tri-State expands opportunity for community solar

Tri-State board of directors approves community solar program recommended by membership’s Contract Committee.
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Tri-State statement on the United Power filing

Members are currently evaluating their wholesale power contracts to increase flexibility, including a proposal from United Power.
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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