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Market Notice
December 5, 2018


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System Operations

Potential Exemption for Transmission-Induced Outages in the Planned Timeframe, Call 12/12/18


The California ISO will hold a public stakeholder meeting on December 12 to discuss a planned tariff filing with the Federal Energy Regulatory Commission (FERC) that would create a Resource Adequacy Availability Incentive Mechanism (RAAIM) exemption for transmission-induced generation outages that occur in the planned timeframe.


Pursuant to section of the tariff, such outages already are RAAIM-exempt when they occur in the forced timeframe. The Board-approved policy adopting RAAIM was that "resource outages will be excluded from the availability incentive process if an outage is beyond the resource’s control," (Reliability Services Initiative, Draft Final Proposal Addendum, Feb. 27, 2015, p. 46). The ISO now acknowledges that this policy should apply to transmission-induced generation outages irrespective of the timeframe in which the transmission operator submits its outage.


A presentation and paper describing this issue in more detail will be available prior to the call 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 paper to by end of day December 21. Since this is a time sensitive issue and because of the limited nature of the change, the ISO plans to file the tariff amendment with FERC in an expedited manner towards the end of December 2018.


Meeting Details

Date: Dec. 12, 2018

Time: 10:30 a.m. - 12 p.m. PST

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Participation Information

Step 1: call 1-877-369-5230, access code: 0403847##

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