***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** NOTICE DATE: February 26, 2021 NOTICE TYPE: M-A022621-01 CRR SHORT DESCRIPTION: 2021.APR.Monthly.Auction INTENDED AUDIENCE: CRR Account Holders and Counter-Parties DAYS AFFECTED: February 26 – March 19, 2021 LONG DESCRIPTION: The tables below contain key dates and parameters for the following Congestion Revenue Right (CRR) Auction: 2021.APR.Monthly.Auction. Important Auction Dates Credit window opens (00:01 CPT) 2/26/2021 Post path specific adders report 3/4/2021 Bid window opens (00:01 CPT) 3/9/2021 Bid and credit windows close (17:00 CPT) 3/11/2021 Post auction results 3/18/2021 Post invoices and release credit 3/19/2021 General Auction Parameters Auction capacity % 90 Per account holder transaction limit 10,000 Preliminary transaction adjustment period limit (per account holder) 916 Total transaction limit 300,000 Bid and offer submittal increments .1 MW Minimum option bid price $0.01 CRR application currently supports IE 11 Specifications for the equipment and interfaces necessary to participate in CRR auctions CRR Market User Interface Specifications<https://mis.ercot.com/public/data-products/markets/crr?id=NP7-901-M> CRR Market User Interface Handbook<http://www.ercot.com/content/wcm/lists/135269/CRR_Market_User_Interface_Handbook_v4.1.docx> ADDITIONAL INFORMATION: Additional Market Notices will be sent if a transaction adjustment period is needed for this auction or if the auction results are posted on a different date than specified in the table above. The CRR Activity Calendar<https://mis.ercot.com/public/data-products/markets/crr?id=NP7-149-M> is located on the Market Information System (MIS) and on the Congestion Revenue Rights<http://www.ercot.com/mktinfo/crr/> page on ERCOT.com. Information about proxy Settlement Points used in calculating CRR credit exposure can be found in the DAM Proxy Settlement Points<http://www.ercot.com/services/rq/credit/index.html> list posted on the Credit page on ERCOT.com. 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 a public 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<http://lists.ercot.com/>. mm