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NOTICE DATE: March 8, 2021

NOTICE TYPE: M-A030821-01 Settlement

SHORT DESCRIPTION: Adjustment to NIDR Backcasted Load Profiles for Operating Days February 15, 2021 through February 18, 2021

INTENDED AUDIENCE: Qualified Scheduling Entities (QSEs) and Load Serving Entities (LSEs)

DAY AFFECTED:  February 15, 2021 through February 18, 2021

LONG DESCRIPTION: For Settlement purposes, ERCOT utilizes backcasted Load Profiles to convert monthly kWh meter readings from Non-Interval Data Recorder (NIDR) premises into 15-minute intervals.  ERCOT is aware that there were many NIDR premises that experienced power outages during the period of February 15, 2021 through February 18, 2021.  ERCOT is issuing this Notice to inform Market Participants that ERCOT adjusted the backcasted Load Profiles for those Operating Days (ODs) to account for the outages. 

More specifically, the backcasted Load Profiles for ODs February 15, 2021, through February 17, 2021, were adjusted to 20% of the original value, and the backcasted Load Profiles for OD February 18, 2021, were adjusted to 50% of the original value.  This adjustment was applied to backcasted Load Profiles for both metered Load premises and Non-Metered Load premises.  Non-Metered Load premises consist of profile type codes NMFLAT and NMLIGHT.  Of note, in the past ERCOT has made similar adjustments to COAST backcasted Load Profiles when it was necessary to account for widespread, hurricane-related outages.

ERCOT expects to discuss this topic further at the upcoming meetings of the Profiling Working Group (PWG) and Retail Market Subcommittee (RMS). If deemed necessary, based on stakeholder feedback at those meetings, the backcasted Load Profiles for the impacted Operating Days can be further modified prior to the Final and/or True-Up Settlements. 

ADDITIONAL INFORMATION: This topic is expected to be discussed further at the March 10, 2021, PWG meeting.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].   

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