NOTICE DATE:  February 17, 2012

NOTICE TYPE:  M-A081211-05 NPRR/SCR

SHORT DESCRIPTION:  Implementation details of SCR764 – New version of LMP Contour Map

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  February 16, 2012

LONG DESCRIPTION:  On February 16, 2012, ERCOT deployed the final implementation of System Change Request (SCR) 764, Public Access to Select MIS Dashboards, by releasing the latest version of the Locational Marginal Price (LMP) Contour Map to ERCOT.com and the Market Information System (MIS). To access from ERCOT.com, click the “Market Information” section tab and then click on the “LMP Contour Map” link under “Day-Ahead and Real-Time Displays”. From MIS, click “Applications” and then click on the “LMP Contour Map” link.

The LMP Contour Map has three data displays:

· Real-Time LMPs

· Real-Time SPPs

· Day-Ahead SPPs

Each data display has two view types:

· Standard Gradient

· High Gradient

Standard Gradient represents 33 preset contour levels from -$250 to $3000. High Gradient represents 33 contour levels determined by the min/max values of the data.

Each view has two display modes:

· HTML

· KML

HTML is the default display.

Viewing KML files requires Google Earth™ (http://www.google.com/earth) to be installed on the user’s system.

More detailed information on the LMP Contour Map can be found in the help file, which is accessible by clicking the “Help?” link located in the upper right corner of the HTML page. This information includes the downloading of the county outline files into Google Earth™. Users should review the help file before using the new LMP Contour Map functionality.

ADDITIONAL INFORMATION:  SCR764 and associated documents can be found on the ERCOT website, under Market Rules, at http://www.ercot.com/mktrules/issues/scr/750-774/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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dh