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From: kdonohoo@ercot.com To: sstf@ercot.com Subject: CSC ZONE Preliminary TTC ATC Cc: 1cscworkinggroup@ercot.com, wms_etc@ercot.com, rms_etc@ercot.com,ros_etc@ercot.com, jadams@ercot.com, jbian@ercot.com Bcc: 1cscworkinggroup@ercot.com, wms_etc@ercot.com, rms_etc@ercot.com,ros_etc@ercot.com, jadams@ercot.com, jbian@ercot.com Date: Mon, 30 Apr 2001 00:05:00 -0700 (PDT) Response Requested May 4 Three files attached Attached is the preliminary TTC/ATC calculations between CM/CSC Zones for On Peak Summer 2001.? Based upon these calcualtions it appears that the TTC based upon thermal limits (RateB) between CM/CSC Zones is: South to North?? 3,700 - 3,800 MW West to North??? 1,100 - 1,200 MW West to South????? 500 -?? 600 MW North to South?? 1,100 - 2,300 MW North to West????? 800 -?? 850 MW South to West????? 300 -?? 350 MW We request SSWG review these calculations and provide any changes or updates no later than Friday May 4. Thanks Ken D. ? - CSCZoneTTCATC01Sum1.doc - ATCRateBwithOfflineGen.xls - ATCRateBwithOutOfflineGen.xls