The U.S. Bureau of Land Management (BLM) has identified the preliminary preferred route for the proposed Gateway South Transmission Line, which will be a major conduit for new renewable energy projects.
Gateway South, proposed by PacifiCorp (d/b/a as Rocky Mountain Power), is a 500-kV, long-distance power transmission line originating in southeastern Wyoming, passing through Colorado and ending in central Utah. It would go from the Aeolus substation in southeastern Wyoming into the new Clover substation near Mona, Utah. When completed, the project would transmit about 1,500 MW generated out of renewable and thermal sources at planned facilities in Wyoming.
The BLM and cooperating agencies are analyzing the preliminary agency preferred route and alternative routes in the draft environmental impact statement (DEIS), which will be released in February 2014. The DEIS will identify and document the potential effects of the project as well as a range of reasonable alternatives that may help avoid, minimize or mitigate for these impacts. Issues evaluated for each alternative include: cultural resources, fisheries, land use, special designations, use of existing utility corridors, vegetation, visual resources, and wildlife.
The Gateway South project is one part of PacifiCorp’s overall transmission expansion program, called the Energy Gateway Program (which includes Gateway Central and Gateway West), which will add more than 1,900 miles of new transmission lines connecting PacifiCorp’s customers to new and existing generation resources and provide stronger ties to established energy markets.
The PacifiCorp website said the company hopes to have the Gateway South project in service in the 2020-2022 period.