Environmental groups asked the D.C. Circuit Court to review FERC rulings on the PJM Capacity Performance model, saying model limits renewables and DR.

FERC rejected multiple rehearing requests on PJM's Capacity Performance rules but ordered the RTO to revise Tariff language regarding certain provisions.

PJM and the Independent Market Monitor asked FERC to revise Capacity Performance rules to address concerns that generators might ignore dispatch instructions to avoid penalties.