OGRR208

Title:	Voltage Ride-Through (VRT) Requirement
Next Group:
Next Step:
Status:	Approved on 10/02/2008
Effective Date:	11/01/2008

Date	Gov Body		Next Steps
10/02/2008	TAC	Approved
09/11/2008	ROS	Recommended for Approval
08/20/2008	OWG	Recommended for Approval	ROS Review
08/14/2008	ROS	Remanded
07/16/2008	OWG	Recommended for Approval
06/18/2008	OWG	Recommended for Approval	OWG Preliminary Impact Analysis Review
05/21/2008	OWG	Deferred/Tabled

Date	Gov Body	Motion	Result	Against	Abstentions
10/02/2008	TAC	To approve OGRR208 as recommended by ROS	Passed	3 IPM-2; Gen-1	3 IPM-1; IREP-1
09/11/2008	ROS	To recommend approval of OGRR208 as recommended by OWG and as revised by ROS	Passed	0	0
08/20/2008	OWG	Consensus to forward OGRR208 to ROS as amended by the 081908 OGRTF comments and as revised by OWG.	Passed
08/14/2008	ROS	To remand OGRR208 to OWG as revised by ROS with the directive that “grandfathering” and compliance issues be addressed.	Passed	0	0
07/16/2008	OWG	Consensus to forward the OWG Recommendation Report and the Preliminary Impact Analysis to the ROS for consideration.	Passed
06/18/2008	OWG	Consensus to recommend approval of OGRR208 as amended by the 061708 OGRTF comments and contingent upon resolution of the issues identified in the 061708 OGRTF comments by ROS.	Passed
05/21/2008	OWG	Consensus to defer action on OGRR208 as recommended by the OGRTF comments.	Passed

Status:	Approved
Date Posted:	04/15/2008
Sponsor:	Walter Reid on behalf of Wind Coalition
Urgent:	No
Sections:	3.1.4.1, 3.1.4.6
Description:	This Operating Guide Revision Request (OGRR) proposes a requirement for VRT capability for all new generating units.
Reason:	This OGRR is being proposed for the following reasons: (1) Passing of FERC 661A, Eminent NERC Standard drafting process takes time; (2) Although wind manufacturers are adding VRT capability to new designs, we must proceed before NERC due to large amounts of proposed wind generation next year and next few years in ERCOT that could pose a reliability threat in the event of voltage excursions; and (3) Concern of sudden voltage changes causing tripping of units without VRT capability.