CAISO's EIM provided its members $101.01 million in economic benefits during the first three months of 2021, an increase of 75% over a year ago.

FERC approved CAISO's agreements to procure frequency response from the Bonneville Power Administration and Seattle City Light.

Seattle City Light has signed an agreement with CAISO to begin participating in the Western Energy Imbalance Market in April 2019.

The Seattle City Council authorized Seattle City Light to conduct a cost-benefit analysis on joining the Western Energy Imbalance Market (EIM).

More changes are needed to the CAISO proposed rules for a Western RTO to win approval from the states in which PacifiCorp operates, stakeholders say.