EIM transfers out of CAISO were on the upswing in March, re-establishing a pattern first seen last spring with California’s growing solar surpluses.

Salt River Project signed an agreement with CAISO that puts the utility on track to join with the Western Energy Imbalance Market (EIM) in April 2020.

The balancing area for the Sacramento Municipal Utilities District signed an agreement allowing SMUD to join the Western EIM in 2019.

CAISO officials and stakeholders discussed the ISO's primary frequency response product initiative.

FERC said that CAISO contracts for transferred frequency response service can include a provision recognizing counterparties.

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

CAISO rang in 2016 with a strong push to expand its EIM into PacifiCorp’s sprawling service territory, but the project hit a stumbling block by mid-year.

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

The Western Energy Imbalance Market governing body voted to implement procedures to ensure market participants have input into CAISO policy initiatives.

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