Skip Ribbon Commands
Skip to main content
Sign In
Daily Briefing banner 
Managing the evolving grid 
Home > Key Topics

​Key topics

Here’s a guide to what’s trending at the ISO.


ISO announces Turlock Irrigation District’s intent to join Western EIM

The California ISO is pleased to announce that Turlock Irrigation District (TID) signed an agreement to participate in the Western Energy Imbalance Market (EIM). View the news release.

ISO projects adequate power supplies to meet summer need

In its annual forecast of summer electricity conditions, the California ISO predicts adequate power for the summer largely because of above-normal hydroelectric supplies that will give the system more cushion than in 2018. See the report for more details.

ISO welcomes Tucson Electric Power to the Western EIM

The California ISO has signed an agreement with Tucson Electric Power (TEP), a recognized leader in renewable energy, to participate in the Western Energy Imbalance Market (EIM) beginning in April 2022. Read the news release.

ISO restructures key external and regulatory affairs teams

The California ISO announced a corporate structure reorganization in its external and customer care areas, to streamline services and realign staff with division goals. View the full news release.

Groundbreaking battery technology connects to California ISO power grid

California ISO is one of the nation’s first wholesale power markets to connect an innovative flow battery to its grid, creating opportunity for promising energy storage capability on large-scale electric systems. View the news release here.

California ISO’s Western EIM benefits reach $650 million

The Western Energy Imbalance Market (EIM) reports $85.3 million in gross benefits in the first quarter of 2019. Last quarter’s results bring the cost savings of the real-time electricity market to a total of $650.26 million since 2014. The benefits have doubled when compared to the same period last year. Read about it in our news release.

ISO welcomes Avista to the Western EIM

Avista announced in April its participation in the Western Energy Imbalance Market starting in 2022. Avista Corp. is an energy company involved in the production, transmission and distribution of energy as well as other energy-related businesses. Avista Utilities is the operating division that provides electric service to 388,000 customers and natural gas to 355,000 customers. The service territory covers 30,000 square miles in eastern Washington, northern Idaho and parts of southern and eastern Oregon. See the news release for more details.

The April edition of ISO’s Energy Matters newsletter is now available

Check out this month’s issue to learn more about the ISO’s 2018-2019 Transmission Plan, BANC/SMUD’s participation in the Western EIM and ISO’s RC West Oversight Committee.

ISO welcomes SMUD/BANC to the Western EIM

SMUD/BANC started full participation in the Western Energy Imbalance Market today. Based in Sacramento, SMUD is the sixth largest community-owned utility in the nation providing low cost, reliable electricity for more than 70 years to Sacramento county, and small adjoining portions of Placer and Yolo counties. BANC is the third largest balancing authority in California and the 16th largest within the Western Electricity Coordinating Council. See the news release for more details.

Board of Governors approves 2018-2019 Transmission Plan

The California ISO Board of Governors approved the 2018-19 Transmission Plan and adopted enhancements to the Reliability Must-Run (RMR) and Capacity Procurement Mechanism (CPM) provisions. Read the full news release.

The ISO launches Reliability Coordinator Oversight Committee

The California ISO Reliability Coordinator services, now named RC West, has established an Oversight Committee that will begin monthly meetings in March. RC West has secured agreements from 39 entities in the Western Interconnection. The newly formed Oversight Committee, comprised of representatives from the signed entities, will have its first meeting on March 14 at the ISO headquarters in Folsom, CA. Read the full news release.