***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** PGDTF: I reviewed the RSAW provided in the e-mail below. I was not able to find any language that indicates we will be expected to employ the same load flow cases that we use to calculate GIC flows for transformer thermal assessments (R5) to also complete our GMD Vulnerability Assessment (R4). Put another way, I was not able to find any language in the TPL-007-1 Standard or the RSAW for that standard that would restrict us from employing our existing GIC models (with 04122018 in the name) to calculate and post final GIC flow information to satisfy our R5 requirements but then use different load flow cases (perhaps 18SSWG22 SUM1 and MIN) and updated *.gic files to complete our GMD Vulnerability Assessment to satisfy our R4 requirements. If any of you are aware that I overlooked something in any NERC written document restricting us from employing different load flow cases to satisfy these two requirements , can you please point all of us to that language? [cid:image001.png@01D3ED24.E08C1A00] A. Benjamin Richardson, P.E.(Colorado) Transmission and Interconnection Studies 2705 West Lake Drive Taylor, TX 76574 O: 512-248-4505 | M:720-470-3643 From: Planning Geomagnetic Disturbance Task Force [mailto:[log in to unmask]] On Behalf Of Juricek, Michael Sent: Friday, May 04, 2018 8:40 AM To: [log in to unmask] Subject: Suggestion for review of Draft Vulnerability Assessment Scope ***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** PGDTF members, After submitting Oncor's comments on the draft scope, I remembered a good practice for developing scopes for meeting the requirements in a NERC standard is to compare the scope to the RSAW for the standard. An auditor will use the RSAW in an audit of an entity's response to the standard. We can use the attached RSAW in our review of the draft Vulnerability Assessment Scope. Thanks, Michael Juricek, P.E. Senior Manager, Transmission Planning Assets Planning Distribution and Transmission Oncor Electric Delivery Co LLC Office: 214.743.6671 Mobile: 214.490.0748 Confidentiality Notice: This email message, including any attachments, contains or may contain confidential information intended only for the addressee. If you are not an intended recipient of this message, be advised that any reading, dissemination, forwarding, printing, copying or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately by reply message and delete this email message and any attachments from your system. ________________________________ To unsubscribe from the PGDTF list, click the following link: http://lists.ercot.com/scripts/wa-ERCOT.exe?SUBED1=PGDTF&A=1 ######################################################################## To unsubscribe from the PGDTF list, click the following link: http://lists.ercot.com/scripts/wa-ERCOT.exe?SUBED1=PGDTF&A=1