NOTICE DATE: May 4, 2023

NOTICE TYPE: M-A022123-02 Operations

SHORT DESCRIPTION: ERCOT Board approval of Real-Time Market (RTM) price corrections for Operating Day (OD) February 5, 2023

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: February 5, 2023

LONG DESCRIPTION:  On February 21, 2023, ERCOT informed Market Participants that RTM prices for OD February 5, 2023 were impacted by an error in the calculation of the Valley Export GTC (VALEXP).  ERCOT also notified Market Participants that ERCOT would be seeking ERCOT Board of Directors (Board) review of RTM prices for that OD.  See Market Notice M-A022123-01.

On April 18, 2023, the Board reviewed Real-Time On-Line Deployment Prices (RTRDPs), Real-Time Settlement Point Prices (RTSPPs), Real-Time Prices for Energy Metered for Resources (RTRMPRs), and Real-Time Prices for Energy Metered for Settlement-Only Generators, determined that these prices were significantly affected by the VALEXP calculation error, and directed ERCOT to implement the appropriate price corrections pursuant to ERCOT Protocol Section 6.3(7).  See Board of Directors Meeting (April 18, 2023), Agenda Item 10.2.

Board approval of these price corrections necessitate the issuance of RTM Resettlement Statements. A Market Notice will be posted for the RTM resettlement in accordance with ERCOT Protocol Section 9.5.7.

ADDITIONAL INFORMATION: The corrected prices are posted in both CSV and XML formats under the RTM Price Corrections section of the Market Prices on ERCOT.com.

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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mm