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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 Concluded 9
Aug 25 '26 Pre-Dispatch Training Concluded
Aug 24 '26 Pre-Dispatch Training Concluded
Aug 12 '26 Tuning Training - Webex Only Concluded
Jul 29 '26 SSWG Meeting - Webex Only Concluded 7
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