NOTICE DATE:  September 26, 2008

NOTICE TYPE:  M-B092608-01 Settlements

CLASSIFICATION: Public

SHORT DESCRIPTION:  ERCOT to adjust Coast Weather Zone Load Profiles

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  Operating Days beginning September 13, 2008

LONG DESCRIPTION: In accordance with PUC Project No. 36150 (Issues Relating to the Disaster Resulting from Hurricane Ike), ERCOT will be adjusting all Load Profiles for the Coast Weather Zone used for aggregating load starting with Operating Day September 13, 2008 and continuing forward until further notice. These adjusted Load Profiles will first be reflected on the Initial Settlement of Operating Day September 18, 2008. Adjustments for Operating Days September 13 - 17, 2008 will be reflected in the Final Settlement for these Operating Days. 

 

The Coast Weather Zone Load Profiles will be scaled down to better reflect the proportion of Customers that have power based on market communications from CenterPoint Energy. For example, if 20% of the Customers had power on a particular Operating Day, all Coast Weather Zone Load Profiles for that day would be multiplied by 20% (reduced by 80%). ERCOT will use the daily communications from CenterPoint Energy to determine the percent of Customers with power.

 

No adjustments will be made to the IDR proxy day process.

 

The coefficients utilized to adjust the Backcasted Load Profiles for the Coast Weather Zone will be published on the ERCOT website as a Key Document on the Load Profiling page.  The link to the Load Profiling page is http://www.ercot.com/mktinfo/loadprofile.

 

ADDITIONAL INFORMATION: ERCOT will host a conference call on Monday, September 29, 2008 from 10:00 a.m. CPT to 12:00 p.m. CPT to explain the changes to the Coast Weather Zone Load Profile in support of the PUCT order. ERCOT will cover the changes to the profiles and take any questions concerning this change. The conference call information is as follows:

Call-in toll-free number (US/Canada): 866-469-3239

Meeting Number: 356 327 440

Password: #

 

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].

If you are receiving e-mail 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.

 

 

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