***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** NOTICE DATE: May 17, 2019 NOTICE TYPE: M-B051719-01 NPRR SHORT DESCRIPTION: Implementation Details of NPRR912 INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: May 31, 2019 LONG DESCRIPTION: On May 31, 2019, Protocol language related to Nodal Protocol Revision Request (NPRR) 912, Settlement of Switchable Generation Resources (SWGRs) Instructed to Switch to ERCOT, will be implemented. This NPRR provides a dispute process to address the Settlement of SWGRs that receive a Reliability Unit Commitment (RUC) instruction to switch from a non-ERCOT Control Area to the ERCOT Control Area during an actual or anticipated Energy Emergency Alert (EEA) condition. ERCOT will issue a miscellaneous Invoice to the QSEs for the Settlement of Switchable Generation Make-Whole Payments and Charges. ADDITIONAL INFORMATION: Pursuant to Nodal Protocol Section 21.6, Nodal Protocol Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation. NPRR912<http://www.ercot.com/mktrules/issues/NPRR912> 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]>. If you are receiving a public email from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com. sa/mm