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Subject:
From:
Aster Amahatsion <[log in to unmask]>
Reply To:
Planning Geomagnetic Disturbance Task Force <[log in to unmask]>
Date:
Fri, 18 Oct 2019 17:09:26 +0000
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multipart/alternative
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FYI



From: [log in to unmask]<mailto:[log in to unmask]> <[log in to unmask]<mailto:[log in to unmask]>> On Behalf Of ERCOT Client Services
Sent: Friday, October 18, 2019 10:53 AM
To: [log in to unmask]<mailto:[log in to unmask]>
Subject: [EXTERNAL] M-A100419-02 Implementation Details of PGRR070 - Preliminary Geomagnetically-Induced Current (GIC) flow results posted

________________________________

***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. *****

NOTICE DATE: October 18, 2019

NOTICE TYPE: M-A100419-02  Operations

SHORT DESCRIPTION: Implementation Details of PGRR070 - Preliminary Geomagnetically-Induced Current (GIC) flow results posted

INTENDED AUDIENCE: Resource Entities and Transmission Service Providers (TSPs)

DAY AFFECTED: November 1, 2019

LONG DESCRIPTION: ERCOT has posted preliminary GIC flow results for the supplemental GMD event in preparation to meet NERC Reliability Standard TPL-007-3, Requirement R9.  In addition, ERCOT has posted a preliminary update to the GIC flow results for the benchmark GMD event, which were previously posted on October 29, 2018 in connection with NERC Reliability Standard TPL-007-1, Requirement R5.  ERCOT requests that TSPs and Resource Entities provide comments on the posted GIC flow results by November 1, 2019.

The preliminary GIC flow results have been posted as a “GIC Transformer GIC Flow Information” report (EMIL ID PG3-953-M, Report ID 15633) in the “Regional Transmission Planning (5 year Transmission Plan)” portlet on the Regional Planning<https://urldefense.proofpoint.com/v2/url?u=https-3A__mis.ercot.com_pps_tibco_mis_Pages_Grid-2BInformation_RegionalPlanning&d=DwMFaQ&c=16VmlS4MonZN71XwTUYWYA&r=tr8FRYvsrbB-Hra6H9Lx-A&m=-F2eOabvvrA21q7vXzwPnpd5CyQ8PULVSyw5WzbwdMU&s=owSjeDs_YorygGG_fdzfx4hZQ320ekZJYTGcMCk8zTE&e=> page of the Market Information System (MIS) Secure Area.

Pursuant to paragraph (1)(d) of Planning Guide Section 6.11, Process for Developing Geomagnetically-Induced Current (GIC) System Models, supporting models are available to TSPs in the “GMD Planning Studies” reports (EMIL ID PG6-105-M, Report ID 14546) in the “Models” portlet on the Transmission Service Provider Information<https://urldefense.proofpoint.com/v2/url?u=https-3A__mis.ercot.com_pps_tibco_mis_Pages_Groups-2Band-2BRules_TO&d=DwMFaQ&c=16VmlS4MonZN71XwTUYWYA&r=tr8FRYvsrbB-Hra6H9Lx-A&m=-F2eOabvvrA21q7vXzwPnpd5CyQ8PULVSyw5WzbwdMU&s=cvw4wXHWSLY2dWrWzJtrN9B3Eall7zoEJsRD3swUfr0&e=> page of the MIS Certified Area.

In both locations, see file names that include the title “Prelim_Transformer_GIC”.

ACTION REQUIRED: ERCOT requests that TSPs and Resource Entities provide their comments on this preliminary GIC flow information via e-mail to [log in to unmask]<mailto:[log in to unmask]> with “Preliminary GIC Flow Results Comments” in the subject line by November 1, 2019.

ADDITIONAL INFORMATION: On October 18, 2019, ERCOT partially implemented Planning Guide Revision Request (PGRR) 070, Revised Responsibilities for Performing Geomagnetic Disturbance (GMD) Vulnerability Assessments as described in this previous Market Notice<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ercot.com_services_comm_mkt-5Fnotices_archives_search-3Fnc-3Dall-26per-3D-26pg-3D-26q-3DM-2DA100419-26sort-3D&d=DwMFaQ&c=16VmlS4MonZN71XwTUYWYA&r=tr8FRYvsrbB-Hra6H9Lx-A&m=-F2eOabvvrA21q7vXzwPnpd5CyQ8PULVSyw5WzbwdMU&s=WvJXPipaxWd6vlnwAD_8uhqcUI5rOgfKuloUn-f3Ifo&e=>.

In addition to TSPs and Resource Entities, this notice is also issued to compliance contacts for all Transmission Owners and Generator Owners registered with NERC.

PGRR070<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ercot.com_mktrules_issues_PGRR070&d=DwMFaQ&c=16VmlS4MonZN71XwTUYWYA&r=tr8FRYvsrbB-Hra6H9Lx-A&m=-F2eOabvvrA21q7vXzwPnpd5CyQ8PULVSyw5WzbwdMU&s=MXfuMjz0fEypsvg3-GenR_iEyrhGyVkuvh7LdPte0ao&e=> 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 email from a public 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<https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.ercot.com_&d=DwMFaQ&c=16VmlS4MonZN71XwTUYWYA&r=tr8FRYvsrbB-Hra6H9Lx-A&m=-F2eOabvvrA21q7vXzwPnpd5CyQ8PULVSyw5WzbwdMU&s=9F7kW0V7wBDkxObzcRb5m5_fLFic2RsKWLMKH8qU4qk&e=>.





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