ALLETE Clean Energy (ALLETE) finalized the acquisition of Storm Lake 1, a wind generation facility in Storm Lake, Iowa, adding another 108 MW to its renewable energy portfolio. ALLETE paid $15 million to NRG Energy to acquire the facility, which is adjacent to Storm Lake 2, a 78-MW wind farm purchased by ALLETE earlier this year. Both Storm Lake installations use 750 kW Zond turbines and are adjacent to each other in northwest Iowa.