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Working Group · under ROS

SSWG  Steady State Working Group

The Steady State Working Group (SSWG), reporting to the Reliability and Operations Subcommittee (ROS), produces seasonal and future load-flow base cases; coordinates tie-line data with neighboring companies; prepares data for and reviews seasonal transmission loss-factor calculations; and provides requested transmission system data and power-flow support documents to market participants. As needed, the SSWG resolves any impending load-flow modeling issues and provides technical support to the ROS.
ChairChris Ramirez
Vice ChairWeiwei Hu
Recent Meetings 25
DateMeetingStatusAgendaRRs
Dec 9 '26 SSWG Meeting - Webex Only Scheduled
Nov 18 '26 SSWG Meeting - Webex Only Scheduled
Oct 21 '26 SSWG Meeting - Webex Only Scheduled
Oct 6 '26 PPD/CTG Training - Webex Only Scheduled
Sep 16 '26 SSWG Meeting Scheduled
Sep 15 '26 Dispatch Tuning Scheduled
Sep 14 '26 Dispatch Tuning Scheduled
Aug 26 '26 SSWG Meeting Scheduled
Aug 25 '26 Pre-Dispatch Training Scheduled
Aug 24 '26 Pre-Dispatch Training Scheduled
Aug 12 '26 Tuning Training - Webex Only Scheduled
Jul 29 '26 SSWG Meeting - Webex Only Scheduled
Jul 1 '26 SSWG Meeting - Webex Only Concluded 10
Jun 17 '26 Intro to MOD Training - Webex Only Concluded
Jun 3 '26 SSWG Meeting - Webex Only Concluded 7
May 12 '26 PDD/CTG Training - Webex Only Concluded
Apr 29 '26 SSWG Meeting Concluded 8
Apr 28 '26 Dispatch Tuning Concluded
Apr 27 '26 Dispatch Tuning Concluded
Apr 22 '26 SSWG Meeting - Webex Only Concluded 3
Apr 1 '26 SSWG Meeting - Webex Only Concluded 9
Mar 31 '26 Pre-Dispatch Tuning - Webex Only Concluded
Mar 30 '26 Pre-Dispatch Tuning - Webex Only Concluded
Mar 18 '26 Tuning Training - Webex Only Concluded
Mar 4 '26 SSWG Meeting - Webex Only Concluded
Key Documents 5
NameType
ERCOT SSWG Schedule 2026 docx
SSWG Roster 2026 xlsx
SSWG Procedure Manual ROS Approved 05072026 docx
Methodology_for_Assessing_GMD_Impacts_ROS_APPROVED 20220810 docx
GIC_System_Model_Procedure_Manual_ROS_APPROVED_20220810 docx