Tri-State has been provided notice by United Power that the distribution cooperative intends to withdraw from membership.

Today, wholesale power supply cooperative Tri-State announced Reg Rudolph will join its senior leadership team in the newly created role of Chief Ener...

200-MW wind project the second of eight renewable energy projects in Tri-State’s Responsible Energy Plan

Tariff advances contract flexibility, key component of Tri-State’s transformative Responsible Energy Plan.

Settlement filing reduces OATT customer transmission rates and increases transparency.

Filings highlight importance of upholding long-term full requirements power contracts for G&Ts and their members.

Revised Preferred Plan reduces costs, increases renewables and maintains 80% reduction in CO2 emissions; meets goals of Tri-State's Responsible Energy...

Revisions include a simpler, replicable methodology to ensure members held financially harmless if another member terminates its power contract early.

Tri-State highlighted the accomplishments of its Responsible Energy Plan and Board of Directors elected Tim Rabon as new chairman.