June 22, 2023
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Request for Comment
Subscriber Participating Transmission Owner Model: Final proposal posted, call on 6/29/23

The California ISO will hold a public stakeholder call on June 29, 2023, to discuss the final proposal and draft tariff language for the Subscriber PTO Model initiative. The initiative is focused on implementing a new Subscriber PTO Model, giving the ISO operational control of the transmission lines without increasing the transmission revenue requirement for the Access Charge for the cost of the Subscriber Participating TO transmission facilities. The final proposal is available on the initiative webpage.


Please submit written comments on the draft tariff language by end of day July 19, 2023, through the ISO’s commenting tool using the link on the initiative webpage.


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


Meeting Details

Date: June 29, 2023

Time: 1 p.m. - 4 p.m. Pacific Time

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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: 3805291#


Technical support: call the AT&T Help Desk at 1-301-250-7202


Please contact Kaitlin McGee at or with any questions.

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