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.

Acciona Wind Energy is accusing MISO of blocking it from selling power into PJM by improperly interpreting a process designed to streamline energy exports.

MISO has asked FERC for a rehearing of its order requiring the RTO to modify the way it calculates the hurdle rate for determining whether to allow power flows between its north and south regions.

FERC granted MISO’s request to suspend action on long-term TSRs between its north and south regions as it tries to resolve its seams dispute with SPP.