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NOTICE DATE:  April 27, 2018

NOTICE TYPE:  M-A042718-01 Release - Retail/Wholesale

SHORT DESCRIPTION:  Implementation of market-facing changes for May 2018


DAYS AFFECTED:  May 29 - 31, 2018

LONG DESCRIPTION:  ERCOT will be implementing a number of market-facing changes in the production environment on May 29 - 31, 2018 for several systems. Please see the attached spreadsheet for the description of each change.

ADDITIONAL INFORMATION:  ERCOT systems may experience intermittent service interruptions during the implementation period. The systems include, but are not limited to:

********* Components of the ERCOT Market Information System (MIS) including:

o   Report publishing to the MIS

o   Downloading of extracts and reports from MIS and External Web Services (EWS)

o   MIS and ERCOT.com dashboards and displays

********* Texas Renewable Energy Credit Trading Program

o   Texas Renewables - www.texasrenewables.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.texasrenewables.com&d=DwIFAg&c=trp9rTvIdyEWh1VWB5x8_2JiPaB5oGZOtWPDws2_VoY&r=S1PDybhlwBKKRd5V5CKJ0jVxXIHvPZM6AUkSaz_9p1HU5P_3kbXzkmox8pTKcA-w&m=YA02sEPDgyu0uiBTS2pXxM7dTYzFA-KBNJSuehLHWvI&s=3on6aqjQljyyQ5XigYCcjzzhfkOhSOqPe4lG1W_WDBY&e=>

Information on upcoming releases can be found on the Project Priority List (PPL)<http://www.ercot.com/services/projects/>.

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]<mailto:[log in to unmask]>.

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