Just two days after FERC rejected allegations that MISO was blocking a wind farm from exporting power to PJM, the RTO was hit with a new complaint accusing it of giving special treatment to external generators seeking to deliver power into the Midwest.

FERC denied wind generators’ rehearing request on its June 2014 order concerning SPP's revisions to the RTO’s generator interconnection procedures.

NIPSCO asked FERC to dismiss a complaint by two wind farm operators alleging they were overcharged by the utility for transmission upgrades.

Two more wind farms have joined a complaint against NIPSCO, asking FERC to cut the $35.8 million bill the utility assessed them for transmission upgrades.