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Mobile substation on the road

Power on standby: The quiet asset protecting co-op members

Mobile substations are a vital but often unseen resource that help keep power flowing during maintenance, equipment failures, and emergencies. By sharing these specialized assets across the cooperative network, Tri-State and its members can restore service faster, improve reliability, and ensure communities have dependable power when it matters most.
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Hero Image: Diana Leiker

10 things we learned about birds, wildfire, & protecting the grid

As Wildfire Mitigation Manager and Avian Protection Program Lead, Diana Leiker helps ensure that protecting birds and habitats also strengthens the electric system communities depend on. Her work highlights how utilities can play a critical role in addressing both environmental challenges and energy needs, demonstrating that safeguarding ecosystems and delivering reliable power go hand in hand.
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Hero Image: Annual Meeting 2026: By Design

By design: The story behind the Annual Meeting gift boxes

Annual meetings are a cornerstone of the cooperative model, providing a space for transparency, engagement, and shared decision-making. Tri-State’s 74th Annual Meeting brought together member-owners and employees to connect around our cooperative’s shared direction.
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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

©2026 Tri-State Generation and Transmission Association, Inc. Power supplier to the rural west.

  • About Us
    • Members
    • Leadership
  • Powering the Future
    • Our Energy Mix
  • Electrify and Save®
    • On-Bill Repayment
    • Programs
    • Trade Ally
  • Media
    • Resources
    • Blog
    • Features
    • News
    • Newsletter
    • Podcast
  • Cooperative Benefits
  • Operations
    • Wildfire
  • Search