MDU expanding North Dakota wind farm

BISMARCK (AP) — Montana-Dakota Utilities Co. will expand its North Dakota wind farm with a project developed by ALLETE Clean Energy.
Montana-Dakota owns the 43 turbines at Thunder Spirit Wind, near Hettinger, which were built by ALLETE. The expansion by ALLETE will add another 16 turbines at a cost of about $85 million.
Montana-Dakota says the purchase of the expanded wind farm will boost its renewable energy from 22 percent to 27 percent. The North Dakota Public Service Commission approved Montana-Dakota’s request for an expansion in November 2017. The PSC said electricity produced at the site is expected to be more economical than energy purchased on the market.