U.S./CANADA Power Outage Task Force n Generator trips n :05:44 Conesville 5 [375 MW] n :14:04 Greenwood 1 [785 MW] n :31:34 Eastlake 5 [597 MW]

U.S./CANADA Power Outage Task Force n Transmission line disconnects in southwestern Ohio n :02 Stuart - Atlanta [345 kV] –Fire

U.S./CANADA Power Outage Task Force n Transmission lines disconnect between eastern Ohio and northern Ohio n :05:41 Harding-Chamberlain [345 kV] n :32:03 Hanna-Juniper [345 kV] –Tree n :41:33 Star-South Canton [345 kV]

U.S./CANADA Power Outage Task Force n Remaining transmission lines disconnect from eastern into northern Ohio n :45:33 Canton Central-Tidd [345 kV] n :06:03 Sammis-Star [345 kV]

U.S./CANADA Power Outage Task Force n Transmission lines into northwestern Ohio disconnect, and generation trip in central Michigan n :08:58 Galion-Ohio Central- Muskingum [345 kV] n :09:08 East Lima-Fostoria Central [345 kV] n :08:23 Kinder Morgan [500 MW]

U.S./CANADA Power Outage Task Force n Transmission lines disconnect across Michigan and northern Ohio, separates from Pennsylvania n :10 Harding-Fox [345 kV] n :10:04 - Twenty generators along Lake Erie in northern Ohio (loaded to 2174 MW) n :10:37 - West-East Michigan [345 kV] n :10:38 - Midland Cogeneration Venture (loaded to 1265 MW) n :10:38 - Transmission system separates Northwest of Detroit n :10:38 - Perry-Ashtabula-Eirie west [345 kV]

U.S./CANADA Power Outage Task Force

n Four transmission lines disconnect between Pennsylvania and New York n :10:40 Homer City-Watercure Road [345 kV] n :10:40 Homer City-Stolle Road [345 kV] n :10:42 South Ripley-Dunkirk [230 kV] n :10:44 East Towanda-Hillside [230 kV]

U.S./CANADA Power Outage Task Force

n Transmission lines disconnect and generation trip in northern Ohio n :10:41 Fostoria Centrail-Galion [345 kV] n :10:41 Perry 1 nuclear unit [1252 MW] n :10:41 Avon Lake 9 unit [616 MW] n :10:41 Beaver-Davis Besse [345 kV]

U.S./CANADA Power Outage Task Force n Transmission paths disconnect in northern Ontario and New Jersey, isolating the Northeast portion of the East Interconnection n :10:42 Campbell unit 3 [820 MW] n :10:43 Keith-Waterman [230 kV] n :10:45 Wawa-Marathon [230 kV] n :10:45 Branchburg-Ramapo [500 kV]

U.S./CANADA Power Outage Task Force

n New York splits east-to-west. New England (except south-western Connecticut) and the Maritimes separate from New York and remain intact n :10:46 New York-New England transmission lines disconnect n :10:48 New York transmission split east-west

U.S./CANADA Power Outage Task Force

n Ontario separates from New York west of Niagara Falls and west of St. Lawrence. South-western Connecticut separates from New York and backs out n :10:50 The Ontario system just west of Niagara Falls and west of St. Lawrence separates from New York. n :11:22 Long Mountain-Plum Tree [345 MW] n :11:57 Remaining transmission lines between Ontario and eastern Michigan separate

U.S./CANADA Power Outage Task Force

n 16:13 - Cascading sequence essentially complete