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NOTICE DATE:  May 26, 2017

NOTICE TYPE:  M-E052617-01 Release - Wholesale

SHORT DESCRIPTION:  Implementation details for NPRR789 and NPRR797

INTENDED AUDIENCE:  ERCOT Market Participants

DAYS AFFECTED:  June 27 - 29, 2017

LONG DESCRIPTION:  ERCOT will be implementing Nodal Protocol Revision Request (NPRR) 789, Publish All Mid-Term Load Forecast Results, and NPRR797, Actual Load by Forecast Zone Report and Display, between June 27 and 29, 2017.

NPRR789 publishes the results of all of ERCOT Medium Term Load Forecasts, as well as indicating which forecast is currently in use by ERCOT Operations.

Listed below is the new report and the posting location on the Market Information System (MIS):

Report Name

EMIL ID

Report ID

MIS Posting Location

Seven Day Load Forecast by Model and Weather Zone

NP3-565-CD

14837

Grid > Forecasts > Short Term System Adequacy portlet



NPRR797 creates a new report and display for actual system load by Forecast Zone. This new report is similar to the existing report and display for Actual System Load by Weather Zone. This report and display addresses the requirements of Protocol Section 6.3.2.

Listed below is the new report and the posting location on the Market Information System (MIS):

Report Name

EMIL ID

Report ID

MIS Posting Location

Actual System Load by Forecast Zone

NP6-346-CD

14836

Markets > Real-Time Market > Significant System Conditions portlet



The new Actual Loads of Forecast Zones Display will be available on ERCOT.com on the Grid Information page<http://www.ercot.com/gridinfo>.

An updated Current Day Reports XSD v6.26<http://preview.ercot.com/content/wcm/lists/89535/CDRSchedReports.zip>  has been posted on the ERCOT website at http://www.ercot.com/services/mdt/xsds.

ADDITIONAL INFORMATION:  NPRR789<http://www.ercot.com/mktrules/issues/NPRR789> and NPRR797<http://www.ercot.com/mktrules/issues/NPRR797> and associated documents can be found on the ERCOT website.

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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