NOTICE DATE:  October 15, 2009 

NOTICE TYPE:  R-A101509-01 – Informational 

SHORT DESCRIPTION:   Market implementation of PR 80027 – Advanced Metering - Interim Solution scheduled for the November 14 - 15, 2009 weekend. 

INTENDED AUDIENCE: TDSPs and LSEs

DAY AFFECTED:  November 14 - 15, 2009 

LONG DESCRIPTION:  PR 80027 - Advanced Metering - Interim Solution is scheduled for market implementation the weekend of November 14 - 15, 2009. 

The project includes the following functionality:

· ERCOT will be able to receive and settle on AMS 15-minute Interval data provided by the TDSPs via an AMS LSE file.

· AMS Interval Data LSE Activity Report will be created to communicate the success or failure of the AMS LSE files/transactions, posted to TML on a per file basis.

· Two new supplemental extracts are being created.

o Supplemental IDR Required Interval Extract

o Supplemental AMS Interval Extract

· Three new web services are being created to allow Market Participants to query for AMS data .

o Provide AMS interval data for a trade date

o Provide ESIIDs where AMS interval data not loaded for a trade data

o Provide AMS interval data for ESIIDs I own

ADDITIONAL INFORMATION:  On Saturday, November 14 from 8:00AM to 8:00 PM, the following functions will be affected:

· 814_20s (ESI ID Create/Maintain) will be held

· All other services will be available

There will be no outage or impact to any functions on Sunday, November 15.

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 e-mail at [log in to unmask].

JR/JA