Tri-State

The last coal-fired power generation unit in Washington state, scheduled to close by year-end, is the latest U.S. coal facility ordered to remain in operation by the Trump administration. The U.S. Dept. of Energy (DOE) on December 16 told TransAlta, a Calgary, Canada-based independent power producer (IPP), to keep the 730-MW, coal-fired Centralia Unit 2 […]

Tri-State has filed an application to the Colorado Public Utilities Commission (CoPUC) as the cooperative power supplier plans to expand its participation in the Southwest Power Pool Regional Transmission Organization (SPP RTO) in the West.

Tri-State Generation and Transmission Association has completed work on an electricity transmission line in eastern Colorado, one of several transmission and distribution (T&D) projects the group has planned through 2028.

Colorado-based electric cooperative Tri-State Generation and Transmission Association for the first time has purchased renewable energy projects that will provide power for its members. The co-op, a not-for-profit wholesale power supplier, on June 4 announced it was buying Axial Basin Solar, a 145-MW solar project in Moffat County in northwest Colorado near the Colowyo Mine, […]

Colorado-based cooperative Tri-State Generation and Transmission Association will accelerate the closure of a coal-fired unit in the northwestern part of the state, and also announced a retirement date for an Arizona coal plant, as part of the utility’s latest electric resource plan (ERP). Tri-State on Dec. 1 also said it wants to acquire at least […]

Tri-State Generation and Transmission Association, a wholesale power supply cooperative with 45 members in four states—Colorado, Nebraska, New Mexico, and Wyoming—announced its intentions to retire the Rifle Station, an 85-MW combined cycle facility in Rifle, Colorado. The announcement was made on April 5 in conjunction with a filing with the Colorado Public Utilities Commission (CPUC). […]

The five owners of a 410-MW coal-fired unit at the Craig Generating Station in Colorado have said they will retire the generator on Sept. 30, 2028, about one year before what will then be the last operating unit at the facility will be shuttered. Owners of the Yampa Project—Units 1 and 2 at the site […]

Sunflower Electric Power Corp. has abandoned plans to build the $2.8 billion Holcomb Expansion after its partner on the 895-MW coal-fired power plant project in Kansas, Tri-State Generation and Transmission Association, announced it would no longer pursue the project. Sunflower said on Jan. 15 it will allow the project’s air permit, for which it once […]

Westminster, Colorado (February 12, 2019) — Tri-State Generation and Transmission Association (Tri- State) and EDP Renewables (EDPR) today announced a 104-MW, 15-year power purchase agreement (PPA) that will enable the continued development and eventual construction of the 104 MW Crossing Trails Wind Farm. The project, which is expected to be operational in 2020, marks Tri-State’s […]

  Chances that an 895-MW project to expand Sunflower Electric Power Corp.’s coal-fired Holcomb Station in Kansas will ever be completed are “remote,” a key project partner said. Tri-State Generation and Transmission Association—a Denver-based power generator owned by 43 electric cooperatives that partnered with Sunflower in 2005 to build the new unit—in an August 10-Q […]