Tri-State has approved a proposed settlement of its wholesale rate and contract filings made with the Federal Energy Regulatory Commission (FERC).

S&P changes Tri-State issuer rating but maintains a stable outlook. Tri-State is focused on long-term, clean energy transition and member flexibility.

Market benefits include efficiently using the transmission system, better integrating renewable resources and dispatching the lowest cost resources.

S&P changes Tri-State issuer rating but maintains a stable outlook. Tri-State is focused on long-term, clean energy transition and member flexibility....

Partnering with NM State University to join the Electric Power Research Institute’s National Demonstration & Monitoring of Indoor Food Production.

Tri-State expects to lower costs and increase renewable energy integration in market with other regional power suppliers.

Tri-State reflects achievements in 2020 and its upcoming efforts for 2021 and beyond at the one-year anniversary of its Responsible Energy Plan (REP).

Tri-State announces contributions of $5 million to four organizations supporting communities affected by the retirement of Escalante Station.

The $30,000 Tri-State donation helps support six fire departments who battled the Mullen Fire in southeast Wyoming which consumed over 176,000 acres.