FERC approved MISO's rate schedules for the system support resource agreements at three aging power plants on Michigan’s Upper Peninsula.

Michigan regulators on Thursday approved Wisconsin Energy Corp.’s $9.1 billion acquisition of Illinois-based Integrys Energy — with the condition that the merged companies continue to operate the Presque Isle Power Plant in Michigan’s Upper Peninsula.

FERC approved requests by two Michigan electric utilities to reclassify a number of distribution facilities as transmission assets within MISO.

Multiple stakeholders have requested rehearing of FERC's order that MISO could no longer allocate broadly the SSR costs of keeping Presque Isle open.

The Michigan PSC wants FERC to force MISO to turn over a study used to identify areas that require the operation of system support resources (SSR) in the state’s Upper Peninsula.

Integrys and Wisconsin Energy would sell their subsidiary utilities' electric distribution assets, including Presque Isle, to Upper Peninsula Power Co.