NOTICE DATE: August 12, 2011

NOTICE TYPE: M-B081211-01 NPRR

SHORT DESCRIPTION: Implementation details of NPRR350

INTENDED AUDIENCE: ERCOT Market Participants

DAY AFFECTED: August 24, 2011

LONG DESCRIPTION: On August 24, 2011, ERCOT will implement Nodal Protocol Revision Request (NPRR) 350, Change to the Security Classification of the System Ancillary Service Capacity Monitor Dashboard, which was approved by the ERCOT Board on May 17, 2011. NPRR350 changes the posting category of the items that make up the System Ancillary Service Capacity Monitor dashboard from the Market Information System (MIS) Secure Area to the MIS Public Area.

The public dashboard will be located on ERCOT.com in the Grid Information section, on the Current System Conditions page. The dashboard will continue to be available on the MIS Application page, as well.

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.

NPRR350 and associated documents can be found on the ERCOT website, under Market Rules, at http://www.ercot.com/mktrules/issues/nprr/326-350/350/index.

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].

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