CAISO/WEIM
CAISO Board of GovernorsCalifornia Agencies & LegislatureCalifornia Air Resources Board (CARB)California Energy Commission (CEC)California LegislatureCalifornia Public Utilities Commission (CPUC)EDAMOther CAISO CommitteesWestern Energy Imbalance Market (WEIM)WEIM Governing Body
The California Independent System Operator serves about 80% of California's electricity demand, including the service areas of the state's three investor-owned utilities. It also operates the Western Energy Imbalance Market, an interstate real-time market covering territory that accounts for 80% of the load in the Western Interconnection.
FERC granted CAISO a waiver allowing PGE to join the ISO’s Extended Day-Ahead Market a few months beyond the timeline set out in the market’s standard participation agreement.
Pathways released its Step 2 draft proposal for dividing up functions between CAISO and the new “regional organization” that initiative backers are seeking to create to oversee the ISO’s Western real-time and day-ahead markets.
PacifiCorp is poised to realize up to $359 million a year in net benefits from participating in CAISO’s EDAM, nearly double a previous estimate, according to a newly updated study by The Brattle Group.
The Western Interconnection will need about 15,600 additional new line miles of high-voltage transmission at a cost of about $75 billion over the next 20 years to meet the anticipated increase in load growth, according to a report commissioned by Gridworks and GridLab.
Data centers are contributing to significant load growth and project needs in Silicon Valley, according to CAISO representatives speaking at the kickoff meeting for the ISO’s 2024/25 transmission planning process.
The Western Power Pool’s Board of Directors has approved changes to the Western Resource Adequacy Program’s transition plan that include postponing the program’s “binding” phase by one year and reducing penalties for participants who come up short on RA.
CAISO is recommending it implement a Western Power Trading Forum proposal that could help the EDAM track and account for GHG emissions in a way that considers the variety of carbon pricing programs across the West.
The Western Transmission Expansion Coalition’s transmission planning study is getting a boost from a $1.75 million Department of Energy grant, even as the cost of the project has grown to $6.1 million.
FERC largely approved Order 2023 compliance filings for four utilities in the West and Texas, directing them to submit further compliance filings within 60 days.
The Western Interconnection reached a record-breaking peak load July 10 despite relatively moderate demand in CAISO, the ISO said during a meeting of its Market Performance and Planning Forum.
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