Last week Mortenson said it has started work at Terra-Gen’s 60-MW Oasis Wind project located in Mojave, California. The work involves the repowering of a project first operational in 2004. Mortenson will replace sixty 1-MW turbines with seventeen state-of-the-art, 3-MW class turbines.
The repowered project will consist of six Vestas V112-3.45 MW turbines with 112-meter rotors at a 94-meter hub height, and eleven V136-3.6 MW turbines with 136-meter rotors at an 82-meter hub height. All access roads, foundations, underground collection and erection will be performed as part of Mortenson’s work scope, along with updates to the existing substation.
“For decades, areas around Mojave have been sought-after for wind projects and we are excited to add to the area’s legacy with this repowering project.” said Tim Maag, Vice President and General Manager of Mortenson’s Wind Energy team.
The project is expected to employ 100 workers at peak construction and is should be complete in September, said Mortenson.
This is Terra-Gen’s fifth repower in the state over the past year and 20th wind project in California over the last ten years.
Mortenson is also building the Edwards & Sanborn solar and energy storage project for Terra-Gen, which is located in Kern County, California, and consists of 809 megawatts of solar and 2,297 megawatt-hours of energy storage.