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

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

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.