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June 17, 2020


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Legal & Regulatory



2019 Cost of Service Study and 2021 Grid Management Charge Update Call 6/24/20


In accordance with the California ISO Tariff (Appendix F, Schedule 1) the ISO completed its scheduled triennial cost of service study. The ISO will hold a public stakeholder call on June 24, 2020, to discuss the study’s results as well as the corresponding impacts to the 2021 through 2023 Grid Management Charges (GMC) and other rates.


The study, along with a presentation, will be available prior to the call on the Budget and Grid Management Charge Process webpage at


A web conference will be available for stakeholder convenience. In addition, the call will be recorded and the video file posted on the initiative webpage for a limited time. The recording is for informational and convenience purposes only, and any related transcriptions should not be reprinted without the ISO’s permission.


Please submit written comments on the 2019 cost of service study to by close of business July 1.


Meeting Details

Date: June 24, 2020

Time: 2 p.m. - 4 p.m. Pacific Time

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Participation Information

Step 1: call 1-877-369-5230, access code: 0370972##

Step 2: join web conference

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


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