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Market Notice
April 24, 2019


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Market Rules and Design


Western Energy Imbalance Market

New Initiative: Real-Time Market Neutrality Settlement Proposal, Call 5/1/19


The California ISO has scheduled a public stakeholder call on May 1, 2019 to discuss the straw proposal for the new Real-Time Market Neutrality Settlement initiative, available on the ISO website at


Real-time market neutrality is a settlement charge currently calculated based on the sum of instructed imbalance energy, uninstructed imbalance energy, unaccounted for energy, and greenhouse gas (GHG) awards. To allocate the real-time market neutrality in settlements, an offset is calculated for each of the components of the locational marginal price. This initiative proposes to eliminate the transfer of one of these offsets in settlements, real-time imbalance energy offset, between balancing authority areas in the Western Energy Imbalance Market (EIM) and to remove the GHG awards from the real-time market neutrality and create a GHG-specific neutrality allocation.


An agenda and presentation will be available prior to the meeting on the initiative webpage linked above.


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 straw proposal to by end of day May 13.


Meeting Details

Date: May 1, 2019

Time: 1 p.m. - 3 p.m. PDT

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Participation Information

Step 1: call 1-877-369-5230, access code: 0924031##

Step 2: join web conference

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


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