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February 5, 2021


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Department of Market Monitoring Q3 2020 Market Issues and Performance Report Posted, Call 2/10/21


The California ISO Department of Market Monitoring has posted its Third Quarter Market Issues and Performance Report and has scheduled a stakeholder web conference on Feb. 10, 2021, to discuss the analysis and findings of the third quarter 2020 Market Issues and Performance Report which is available at


The third quarter 2020 Market Issues and Performance Report includes coverage of market performance in both the day-ahead and real-time Western Energy Imbalance Market, including coverage of the regional high load period in August and September. Although market prices were high in the California ISO, relative to both the previous quarter and previous year, prices remained competitive. The total estimated wholesale cost of serving ISO load increased significantly to $3.8 billion ($61/MWh). Palo Verde prices exceeded the day-ahead ISO prices and the ISO prices exceeded Mid-Columbia prices during most of the third quarter. Factors contributing to higher electricity costs included lower hydro-electric production and a moderate increase in gas prices. The report includes special issue coverage of the August load curtailment event, load under-scheduling, hourly block import compensation, resource adequacy performance, demand response, batteries, downward dispatch of renewables, and system market power.


Information related to market monitoring is available at


Meeting Details

Date: Feb. 10, 2021

Time: 2 p.m. - 3 p.m. Pacific Time

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Participation Information

Step 1: call 1-888-251-2949, access code: 4370429#

Step 2: join web conference

Technical support: call the AT&T Help Desk at 1-888-796-6118


Amelia Blanke at or Department of Market Monitoring (916) 351-2174

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California Independent System Operator | P.O. Box 639014 | Folsom, CA 95630 | United States