In the 11-state MidwestIndependentTransmissionSystemOperator grid, coal-plant utilization has fallen to 45 to 55 percent from 70 to 80 percent in 2010-11, according to RBN, a Houston-based energy market-research firm.
Complaints coming from the California IndependentSystem Operation (CAISO) and the MidwestIndependentTransmissionOperator (MISO) sparked an investigation into how JPMorgan was potentially gaming the system to its own benefit.