Coaltrain Energy agreed to pay $4 million in disgorged profits to resolve a FERC investigation into accusations that the company engaged in market manipulation.

The principals of GreenHat Energy will pay PJM $1.4 million to settle claims over the company’s FTR market default, which cost members nearly $180 million.

The PJM MRC will vote on rules governing the inclusion of variable environmental charges in cost-based offers and four sets of capacity auction parameters.