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Subject:	W-A031811-01 Change to Frequency of State Estimator Load Reports
From:	ERCOT Client Services <[log in to unmask]>
Date:	Fri, 18 Mar 2011 10:48:54 -0500
Content-Type:	multipart/alternative
Parts/Attachments:	text/plain (2090 bytes) , text/html (11 kB)

NOTICE DATE:  March 18, 2011
NOTICE TYPE:  W-A031811-01 Extracts - Wholesale
SHORT DESCRIPTION:  Change to frequency of State Estimator Load Reports
INTENDED AUDIENCE:  ERCOT Market Participants
DAY AFFECTED:  March 21, 2011
LONG DESCRIPTION:  Based on language in Protocol Section 6.5.7.1.13, Data Inputs and Outputs for the Real-Time Sequence and SCED, ERCOT is currently overproducing the State Estimator Load Reports. In order to align with the protocol language and be consistent with the other reports within this subsection of protocols, the following reports are changing from a 5-minute near real-time frequency to an hourly posting frequency.

*         NP6-621-CD - State Estimator Load Report - Individual Load on Electrical Buses

*         NP6-623-CD - State Estimator Load Report - Load by Electrical Bus by Load Zone

*         NP6-624-CD - State Estimator Load Report - Total System Load on Electrical Buses

*         NP6-625-CD - State Estimator Load Report - Total ERCOT Generation

*         NP6-626-CD - State Estimator Load Report - DC Ties Flows
ADDITIONAL INFORMATION: The frequency changes will be implemented on Monday, March 21, 2011, at 09:00.
The State Estimator Reports can be found on the ERCOT Market Information System (MIS) on the Grid/Transmission page, under Real-Time Operations, at https://mis.ercot.com/pps/tibco/mis/Pages/Grid+Information/Transmission.
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]>.
If you are receiving email from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com.





dh



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