Tri-State today achieved a significant milestone in its transition to be a more flexible and even cleaner power supplier.

FERC regulates the rates and contracts of wholesale public utilities, including Tri-State.

Donations totaling $200,000 for coronavirus relief and recovery efforts are being made by Tri-State.

In these challenging times, our cooperative principle of Commitment to Community has greater meaning than ever before.

The Federal Energy Regulatory Commission (FERC) today issued orders accepting Tri-State’s tariff filings, ensuring consistent wholesale rate regulatio...

We are working to reschedule the meeting for later this year.

The board of directors of Tri-State has committed to greater member flexibility through partial requirements contracts.

“We’re not just changing direction, we’re emerging as the leader of the energy transition,” said Duane Highley, Tri-State’s CEO.

Today Tri-State announced the retirement of its remaining New Mexico coal-fired power plant and its remaining Colorado coal plants and coal mine.