Interior Dept. Greenlights Eagle-Killing Wyoming Wind Project . On January 18, just three days before being replaced by the Trump administration, the Obama administration gave final approval for the first phase of construction of the Chokecherry and Sierra Madre Wind Energy Project in Wyoming. If completed, the project will be the largest wind power facility in North America. The Interior Department's Bureau of Land Management (BLM) approved construction of the first 500 turbines to begin in 2018, with completion of the first phase scheduled for 2020. The project will have 1,000 turbines covering 220,000 acres. Most of the project will be on BLM lands, which is why it needed the agency's approval. The first phase, some 75,000 acres, will use state lands and parts of a private ranch owned by Denver-based Anschutz Corporation, the parent company of the Power Company of Wyoming (PCW).