NOTICE DATE:  March 21, 2013

NOTICE TYPE:  W-A032113-01 NPRR

SHORT DESCRIPTION:  Implementation detail for NPRR487

INTENDED AUDIENCE:  QSE settlement personnel

DAY AFFECTED:  April 1, 2013

LONG DESCRIPTION:  On April 1, 2013, EROT will implement settlement changes resulting from Nodal Protocol Revision Request (NPRR) 487, QSGR Dispatch Adjustment, which was approved by the ERCOT Board on March 19, 2013.

This NPRR modifies the emergency energy Settlement treatment of a Quick Start Generation Resource (QSGR) that is brought On-Line with a Base Point greater than zero.  The changes remove the settlement interval limitation for compensation using an Energy Offer Curve price that is capped by the Mitigated Offer Cap (adjusted to include variable Operations and Maintenance (O&M)).  Currently the limitation is two "q" Settlement Intervals.  The NPRR will allow this compensation when the base point is less than or equal to its Resource registration applicable Seasonal net minimum sustainable rating until Security-Constrained Economic Dispatch (SCED) no longer needs the QSGR to generate, subject to performance of the QSGR Decommitment Decision Process.  The NPRR also details the QSGR Decommitment Decision Process.

ADDITIONAL INFORMATION:  Pursuant to Protocol Section 21.6, Nodal Protocol Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation.

NPRR487 and associated documents can be found on the ERCOT website, under Market Rules, at

http://www.ercot.com/mktrules/issues/nprr/476-500/487/index

This NPRR updates an existing ERCOT Settlement's manual process and does not require any changes to QSE settlement systems or extracts.

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]>.

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