News briefs on companies in PJM Interconnection: Ameren, Calpine, Duke and First Energy.

FERC approved PJM’s proposal to cap the amount of Limited and Extended Summer demand response that clears in the annual base capacity auction, an action expected to increase capacity prices.

PJM generators told FERC that it should go beyond PJM’s qualification rules for demand response providers — with some proposing that planned DR resources be banned from the capacity market.

A top EPA official told state regulators the agency is still in listening mode in drafting its greenhouse gas rules on existing power plants. Others expressed concerns.

PJM's MRC approved a problem statement on 5/30 to develop ways to standardize and improve transparency on the unit-specific review process used in MOPR.