Our business

The California ISO manages the flow of electricity across high-voltage, long-distance power lines. We operate a competitive wholesale energy market that promotes lower costs and renewable resources, as well as overseeing transmission planning to maximize efficiency and reliability. Learn more

What we do

Grid operations

The ISO manages a transmission system that delivers wholesale electricity to local utilities for distribution to consumers.

Market administration

Our day-ahead and real-time markets ensure enough energy is procured, confirmed, and optimized to foster grid reliability.

Transmission planning

We identify regional grid reliability requirements and projects that yield economic benefits for consumers.

Our leadership

The ISO is led by an accomplished executive management team that ensures the reliable performance of the high-voltage electricity grid, and led the ISO to a green energy future. Learn more

Governance and committees

The California ISO Board of Governors shapes policies, approves grid planning and market design changes, and reviews and approves the annual ISO budget. Learn more

  • Board of Governors
  • Audit Committee
  • Department of Market Monitoring Oversight Committee
  • Market Surveillance Committee
  • Western Energy Imbalance Market Governing Body
  • Western Energy Imbalance Market Governance Review Committee


California is at the forefront of the renewable energy transition, and the ISO’s work supports the state’s clean power goals. Public affairs and media relations are at the heart of the ISO’s mission to inform, educate, and promote the clean, resilient electric system and efficient market of the future.


We offer exciting and challenging career opportunities working with some of the best and brightest in the industry. 


Read ISO’s financial reports, debt financing reports, budget and grid management charges, and audit reports. Visit the Financials page to learn more.


ISO’s business hours are Monday through Friday from 7:30 a.m. to 5 p.m. Visit the Contact us page for department specific contact information. 

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