text_combined: rates day ahead market ran branch group coi ttc path 66 n direction changed 4030 mw 4300 mw n direction 2450 mw 3675 mw branch group pdci path 65 n direction 2525 mw 2875 mw n direction 1904 2084 mw 03 00 24 00 operating day 9 1 01 reason change due completion line work first applicable hour ahead market run values 06 00 iso update changes line rating status sent market operations inquiries please call hour ahead desk system conditions described communication dynamic subject change iso attempted reflect current accurate information available preparing notice system conditions may change suddenly little notice