Coal, Gas, Renewables, Wind

wind farm upgrades turbines

Minnesota Power is upgrading to more efficient direct drive turbines from Siemens for the second phase of the company’s Bison wind project in North Dakota.

Minnesota Power will install 15 SWT-3.0-101 3 MW wind turbines instead of 17, 2.3 MW turbines as originally planned. The new turbines are expected to produce an additional 10,000 MWh of electricity annually.

All 16 turbines in Bison I’s first phase are operational. Output from the wind farm will be sold to Minnesota Power.

Siemens’ direct drive wind turbine features a permanent magnet generator but no gearbox, reducing the number of parts in the turbine by half and potentially decreasing maintenance time.

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