The Energy Imbalance Market (EIM) expanded its footprint and ambitions in 2017 while new suitors lined up to compete with CAISO as the vehicle for a Western RTO.

CAISO is floating a proposal that would extend many of the features of its day-ahead market into the footprint of the EIM.

CAISO day-ahead prices hit all-time highs for the second time this year during the third quarter, the ISO’s Department of Market Monitoring said.

MISO told stakeholders that they set an all-time wind output record and experienced lower demand and prices during a relatively cool October.

FERC rejected SPP’s request to remove its day-ahead must-offer requirement, saying the RTO had not provided “sufficient support” for the Tariff revisions.

Negative day-ahead prices surged in CAISO during the first quarter stemming from surpluses of solar and hydroelectric output.

MISO is testing the waters for creating a multiday energy market that would keep generators with long start-up times switched on for more than one day.

Stakeholders questioned PJM's method for clearing units in its day-ahead auction at a special session of the Markets Implementation Committee.

MISO is preparing nondisclosure agreements and associated Tariff language to share natural gas usage profiles with pipeline operators.

PJM should explain its daily operating decisions in more detail so market participants can better understand price formation and how markets are formed.