Tri-State Generation and Transmission Association has seen the light, and it’s powered by renewable energy.
Tri-State, Colorado’s second-largest power producer behind Xcel Energy, said Wednesday it will seek proposals for renewable-energy resources.
The Westminster-based association is seeking roughly 50 megawatts of renewable supply, said spokesman Jim Van Someren.
The announcement came as Tri-State released a request for proposals for a 250-megawatt combined-cycle natural-gas plant in eastern Colorado.
“The addition of both highly-efficient natural-gas generation and zero-emission renewable energy will strengthen and diversify our resource portfolio,” said Tri-State executive vice president J.M. Shafer.
In April, Tri-State said it would delay plans for two previously announced coal-fired power plants. A third, in western Kansas, is still planned.
Van Someren said Tri – State is responding to concerns from its members and to new laws in Colorado and New Mexico that require power suppliers to produce more renewable energy.
Tri-State supplies 44 member co-ops in Colorado, New Mexico, Wyoming and Nebraska. It has generation capacity of about 3,500 megawatts.
Staff writer Greg Griffin can be reached at 303-954-1241 or ggriffin@denverpost.com.



