July 25, 2022
Mark Your Calendar
Department of Market Monitoring 2021 Annual Market Issues and Performance Report, call on 7/29/22

The California ISO Department of Market Monitoring plans to post the 2021 Annual Market Issues and Performance Report on July 27, 2022,  and has scheduled a stakeholder web conference on July 29 to discuss reported analysis and findings.


The 2021 Annual Report provides highlights of significant market changes and performance. In the California , total wholesale electric costs rose by 33 percent, increasing to $12.6 billion or about $56/MWh. Natural gas prices increased across the West and in the California spot market, driving electricity prices up.


Expansion of the Western Energy Imbalance Market helped improve the overall structure and performance of the real-time market in the ISO and other participating balancing areas. In 2021, four new balancing areas joined the Western Energy Imbalance Market and participation by one area expanded.


Summer supply margins were bolstered by significant market design changes and the integration of additional capacity. The report finds that the ISO and energy imbalance markets continued to perform efficiently and competitively.


Information related to market monitoring is available on the Market Monitoring webpage.


Meeting Details

Date: July 29, 2021

Time: 10 a.m. - 12 p.m. Pacific Time

Add to calendar


Web and audio participation information

Step 1: join web conference

Step 2: connect to audio by selecting computer audio or select call me and enter your phone number


Audio only participation: call 1-888-251-2949 or 215-861-0694, access code: 6154601#

Technical support: call AT&T Help Desk at 1-888-793-6118



For questions, please contact Amelia Blanke at or Department of Market Monitoring at (916) 351-2174,

California Independent System Operator | P.O. Box 639014 | Folsom, CA 95630 | United States
Copyright © 2022 California Independent System Operator. All rights reserved.