Idaho Power and Powerex began transacting in the EIM, bringing to eight the number of members participating in CAISO’s regional real-time market.

The Colorado Public Utilities Commission held its fifth public information session on the potential addition of the Mountain West Transmission Group to SPP.

CAISO's Extended Day-Ahead Market proposal could be done without the political entanglements involved with an RTO, Sarah Edmonds said.

Westerners still hold some “anxiety” and “hesitancy” about a new RTO in the region, says EIM Governing Body Chair Doug Howe.

Western Energy Imbalance Market leaders endorsed CAISO’s controversial proposal to give generators more bidding flexibility.

FERC approved a package of modifications developed by CAISO for the EIM, and issued several other decisions related to Western states and energy markets.

The Energy Imbalance Market Governing Body rejected the CAISO move to change how members of the panel are nominated.

CAISO market participants have many opinions on how the ISO should prioritize the complex and urgent tasks on the ISO’s plate for 2018.

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’s Board of Governors approved new generator contingency modeling, rules extending time for generator interconnections and EIM enhancements.