October 1, 2024

Western Energy Imbalance Market (WEIM)

Consolidated EIM Proposal Effort Gets Underway
CAISO has begun seeking comment from participants in the Western Energy Imbalance Market on three modifications it’s proposing to make to the market.
CAISO Proposes Consolidated EIM Changes
CAISO is kicking off an initiative that will consolidate proposed changes to the Western Energy Imbalance Market (EIM).
Los Angeles Dept. of Water Power Signs Pact to Join EIM
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 Slated to Become First Non-US EIM Member
Powerex has signed an agreement with CAISO to become the first non-U.S. participant in the Western Energy Imbalance Market (EIM).
RTO Officials Tout Market Benefits, Encourage Regulator Scrutiny
Panelists discussed the CAISO Energy Imbalance Market at the annual meeting of the Western Conference of Public Service Commissioners.
CAISO EIM Exports Rise with Spring, Report Shows
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.
CAISO Board OKs Black Start, TAC Area, EIM Charter Measures
The CAISO Board of Governors approved Tariff measures that will enable the ISO to procure additional black start resources in the San Francisco Bay Area.
Salt River Project Signs on to Become 9th EIM Participant
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.
Spring Oversupply Lifts CAISO Curtailments
CAISO is curtailing an increasing volume of renewable generation this spring as the ISO sees its “duck curve” already dipping to levels forecast in 2021.
EIM Governing Body OKs Charter Expansion; Retains Schmidt
EIM Governing Body members approved a measure that would give them increased power to make changes to the market’s governing charter.

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