Renewable developers sparred with transmission planners for MISO, SPP and PJM Tuesday over the RTOs' affected system studies.

FERC issued several orders last week regarding SPP and its members, including Missouri River Energy Services and Tri-County Electric Cooperative.

a FERC administrative law judge has concluded that PJM’s system impact study process is unjust and unreasonable because of a lack of transparency.

FERC ordered a technical conference on how PJM, MISO and SPP coordinate generator interconnection studies on projects near their seams.

ISO-NE hopes to open a window in November for Maine wind generators interested in joining a cluster interconnection system impact study.