Mortenson starts construction of 189 MW Rim Rock Wind Project

Minneapolis, January 9, 2012 — Mortenson Construction was recently selected by San Francisco-based developer, NaturEner, for the construction of the Rim Rock Wind Project.

Located on nearly 21,000 acres about 20 miles north of NaturEner’s Glacier I and 2 Wind projects, previously constructed by Mortenson, Rim Rock will generate 189-MW of wind power — enough energy to power about 66,000 homes.

Mortenson is responsible for the design and construction of access roads, foundations, erection of 126 Acciona 1.5-MW turbines, overhead and underground electrical collection system, two 230kV substations, the generator tie line, and an O&M facility. Construction began late October, proceeding through the winter months and is expected to be complete in October, 2012.

Montana’s wind attributes are unique to the industry. According to AWEA, the state is ranked third in the US for potential wind generating capacity, with more than 944,000 MW available for production. This much wind energy could produce more than 210 times the state’s current electricity needs.

Along with Montana’s vast wind resources, the siting for this project was selected because of the ease of access to the property and the business-friendly development atmosphere in this part of Montana.  

Since entering the renewable energy market in 1995, Mortenson Construction has constructed more than 100 wind projects generating more than 11,000 MW of renewable power across the United States and Canada.

With 100 percent of Mortenson’s business in the power sector coming from renewable energy, Engineering News-Record ranked Mortenson the 11th largest power contractor in the U.S. for 2010. In addition to wind power, Mortenson’s Renewable Energy Groups, also construct facilities that generate solar power, biofuels and hydroelectric power.


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