NOTICE DATE: March 3, 2015 NOTICE TYPE: M-A030315-01 CRR SHORT DESCRIPTION: Update to the CRR Network Model for the 2015.APR.Monthly.Auction INTENDED AUDIENCE: CRR Account Holders DAY AFFECTED: March 3, 2015 LONG DESCRIPTION: ERCOT has posted an updated Congestion Revenue Right (CRR) Auction Network Model for the 2015.APR.Monthly.Auction. This update is being made to reflect the addition of a new Generic Transmission Constraint (GTC) to control a local voltage stability limit in the Ajo area. The specific change being made to the Auction Model is as follows: * The Non-Thermal Constraints file was updated to add the new GTC (AJO_ZORILL1), which is set to 533 MW. The updated model for the 2015.APR.Monthly.Auction is available through the CRR application and on the Market Information System (MIS) Secure Area. 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. mm