FERC denied the SPP Market Monitoring Unit’s request for rehearing of a December 2014 order that rejected the Monitor’s use of a market-impact test to track physical withholding.

PJM's Market Monitor has called on FERC to settle a dispute between PJM and a transmission developer, saying the RTO’s unwillingness to release relevant files is unfair.

SPP and MISO met last week with their stakeholders to review the first five months of market-to-market operations between the two RTOs.

PJM is proposing to relax confidentiality rules regarding uplift payments and generator outages, saying they are inhibiting stakeholder discussions.

PJM's Market Monitor told FERC that proposals by the RTO and a marketer to change the FTR forfeiture rule would weaken protections against market manipulation.

MISO Market Monitor David Patton called for tighter rules on wayward generators, more precise real-time pricing and a fix for Financial Transmission Rights funding shortfalls.

ISO-NE's power prices dropped by more than 40% in the first quarter of 2015 thanks to lower natural gas costs, the Internal Market Monitor reported.

The ISO-NE Market Monitor said the increase was largely driven by higher fuel costs in the first quarter.

PJM also released its response to the Monitor's annual State of the Market Report for last year, as well as its own Annual Report.

The PJM regulation market is purchasing too much from fast-responding “RegD” resources, negatively affecting regulation and reliability, the IMM said.