![]() ![]() PacifiCorp is also looking at replacement resources for once the coal-fired units close, including thermal energy, gas, storage like batteries, and renewables like wind and solar energy. “The draft ‘preferred portfolio’ for the 2019 integrated resource plan indicates how Rocky Mountain Power/PacifiCorp envisions meeting customer energy needs most cost-effectively over the next 20 years,” Hall said. The company is working on its biennial plan that consists of long-term planning, a preferred portfolio of supply-side and demand-side resources to meet this need and an action plan to identify the steps the company will take during the next two to four years to implement the plan, according to the company. “Also factoring into final resource decisions will be coordination with other utilities that take power from units under joint ownership, including the Jim Bridger and Colstrip (Montana) coal plants.” ![]() “The timing of when other specific coal units retire will continue to be influenced by the need to most cost-effectively ensure system reliability as coal plants retire, not just on PacifiCorp’s system but across the region,” Spencer Hall with Rocky Mountain Power’s media relations told the Rocket-Miner. ![]() When asked after the meeting how much would be saved by not closing both Bridger plant units in 2022, Link said the company is “still working through a lot of numbers.” Another scenario would have one unit retire in 2028 and the other in 2032 with options in between being considered, he said.Īs for the Naughton Plant units in Kemmerer, they are expected to run to 2025 instead of 2022 as stated in April. One Rock Springs unit could close in 2022 while the other would shut down in 2028. He said it would be too much, too fast, too expensive and risky to retire the units in 2022. Since then, Link said the company has done more research and concluded there would be potential savings for customers if the company phases in the closures. In late April, company executives visiting Rock Springs said that a coal analysis indicated that retiring units one and two by 2022 would save customers about $248 million. Rocky Mountain Power is a division of PacifiCorp, which encompasses Wyoming, Idaho, Utah, Oregon, Washington and northern California. He added that more analysis is needed to determine closure dates. The retirements of four units - Jim Bridger units one and two and two others at the Naughton Plant - are “still very true,” according to Rick Link, PacifiCorp vice president of resource planning and acquisitions. However, the timelines remain unknown.Ĭorporate executives met with residents at Western Wyoming Community College in Rock Springs on Monday morning to entertain questions and concerns about the coal-fired plant unit closures. ROCK SPRINGS - Rocky Mountain Power is continuing its work on a plan that is likely to include the retirement of two Jim Bridger Power units. ![]()
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