A plan by PacifiCorp to retire its coal-fired power plant assets to save money and speed its transition to wind and solar sources could shutter plants in northwest Colorado. But the fate of those units will depend on negotiations with Xcel Energy, Tri-State Generation and Transmission Association and other utilities. In its integrated resource plan unveiled Thursday, Portland, Oregon-based PacifiCorp calls for closing Craig Unit 2 in 2026 and Hayden Units 1 and 2 by 2030. Craig Unit 1 is already scheduled to close in 2025. In all, the plan aims to retire nearly 2,900 megawatts of coal-fired power plants in four Western states by 2030. The company serves about 1.9 million customers in California, Idaho, Oregon, Utah, Washington and Wyoming. To view the full article visit the Colorado Sun.