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

A coalition of the country’s largest utilities last week urged Congress to maintain an electric vehicle tax credit and remove the 200,000-vehicle cap.

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.

Speakers at a CAISO Regional Issues Forum discussed their approach to effectively integrating hydropower, coal and jointly owned plants into the EIM.

The CAISO-run Western EIM has increased the operational flexibility of the region’s utilities, panelists said at the Infocast Transmission Summit West.

The CAISO proposal to provide transmission revenue to balancing authority areas that wheel power received a wary response from EIM stakeholders.

EIM participants are generally supportive of CAISO's plan to account for greenhouse gas emissions of external resources but requested more info.

A Department of Energy study found that Western U.S. utilities procured three times more wind capacity than planned in 2003-2014.

The Los Angeles Department of Water and Power (LADWP) is the 11th utility to announce plans to participate in the CAISO-run Energy Imbalance Market (EIM).

Powerex has signed an agreement with CAISO to become the first non-U.S. participant in the Western Energy Imbalance Market (EIM).