MidAmerican taps Siemens for 1GW

Siemens has been picked to supply turbines to the 1GW of new Iowa wind farms that MidAmerican Energy is bringing into service, the Warren Buffett-owned company announced.

MidAmerican said following a tender process, the German group was selected to supply turbines from its 2.3MW G2 platform for all five projects that will make up the new capacity – a total of 448 turbines.

Siemens was always seen as the prime contender for the supply deals, as it has delivered turbines to previous MidAmerican projects and has factories in the region.

Blades will be made at Siemens’ Iowa factory and nacelles at its Kansas plant, MidAmerican said. The manufacturer will also get a service deal.

A Siemens spokeswoman in Germany told Recharge: "The planned project, as announced by MidAmerican, is 1,050MW for five project sites in Iowa, all of which would be supplied by Siemens. The details of the contract have not been disclosed by either party to date."

She added: "MidAmerican Energy is the number one rate-regulated utility owner of wind generation in the US, and we are extremely proud to continue our ongoing relationship with MidAmerican as its wind turbine supplier for its significant expansion project.

"We look forward to leveraging our US manufacturing investments in Iowa and Kansas for producing the wind turbine blades and nacelles for MidAmerican.”

MidAmerican – part of investment tycoon Buffett’s Berkshire Hathaway company – also gave details of the projects involved and the contractors that will deliver them.

It has struck a deal with Invenergy to buy the 500MW Highland wind project in O’Brien County; with EDF Renewable Energy for the 250MW Lundgren project in Webster County; and with RPM Access for the Wellsburg and Macksburg wind farms of 138.6MW and 117MW respectively.

MidAmerican Energy will also expand its existing Vienna wind farm by 44.6MW.

The Highland, Macksburg and Wellsburg projects will be constructed by Mortenson Construction of Minnesota.

Lundgren and the Vienna 2 wind farms will be built by Wanzek Construction of North Dakota.

MidAmerican said: "When the projects are complete by year-end 2015, approximately 39% of MidAmerican Energy’s generation portfolio will come from wind resources associated with its 1,715 wind turbines."

Note: Update adds comments from Siemens