Event Type:

Year:

Event Began Date Event Restoration Date Respondent NERC Region Event Type Demand Loss (MW) Number Of Customers Affected Duration (Hrs) New NERC Region New Demand Loss (MW) New Number Of Customers Affected Year New Event Type Row Number Area
08/26/2003 4 a.m. 08/29/2003 noon Baltimore Gas and Electric MAAC Severe Thunderstorms 625 0 68.0 RFC 625 133000 2003 Storm 0 montgomery county, howard county, maryland: anne arundel county, baltimore county, calvert county, carroll county, prince george's and baltimore city.
08/14/2003 4:11 a.m. 08/15/2003 9:03 a.m. Consolidated Edison Co of New York NPCC Unknown * 11,202 3125350 28.86666667 NPCC 11,202 3125350 2003 Other 1 entire con edison system (five boroughs of nyc and westchester county)
08/14/2003 4:10 a.m. 08/15/2003 6 a.m. PJM Interconnection MAAC Unknown * 4,100 MW (Northern NJ) and 400 MW, (Erie, PA) area 0 13.83333333 RFC 4,100 0 2003 Other 2 northern new jersey erie, pennsylvania area
08/14/2003 4:10 a.m. 08/14/2003 11:48 a.m. Niagara Mohawk NPCC Unknown * NA 840137 7.633333333 NPCC 0 840137 2003 Other 3 new york- buffalo to albany; ontario, canada to pennsylvania
08/14/2003 4:10 a.m. 08/18/2003 12:03 p.m. New York Independent System Operator NPCC Unknown * 22,934 0 79.88333333 NPCC 22,934 0 2003 Other 4 new york state
08/14/2003 4:10 a.m. 08/16/2003 3:45 a.m. ISO New England NPCC Unknown * 2,500 0 35.58333333 NPCC 2,500 0 2003 Other 5 southwestern connecticut and a small portion of western massachusetts and vermont
08/14/2003 4:10 a.m. 08/16/2003 8:27 a.m. First Energy Corporation ECAR Unknown * 7,000 1203000 52.28333333 RFC 7,000 1203000 2003 Other 6 ohio, northeast
08/14/2003 4:09 a.m. 08/16/2003 1:03 a.m. Consumers Power ECAR Unknown * 1,007 101000 44.9 RFC 1,007 101000 2003 Other 7 saginaw, southern lower michigan and small areas near flint, alma, and lansing michigan
08/14/2003 4:09 a.m. 08/16/2003 7 a.m. Detroit Edison ECAR Unknown * 11,000 2100000 38.85 RFC 11,000 2100000 2003 Other 8 southeastern michigan including all of detroit
08/14/2003 3 a.m. 08/17/2003 5 a.m. Midwest Independent System Operator ECAR Unknown * Approx. 18,500 MW, in MISO area: 37000 74.0 RFC 18,500 37000 2003 Other 9 geographic areas for miso reliability coordination footprint: michigan and ohio
07/28/2003 6:55 a.m. 07/28/2003 8:35 a.m. Arizona Public Service WECC Breaker Closed 440 90000 1.666666667 WECC 440 90000 2003 Equipment Failure 10 arizona
07/21/2003 5:15 a.m. 07/24/2003 5:33 a.m. PPL Electric Utilities MAAC Severe Storms 500-1000 185000 60.3 RFC 750 185000 2003 Storm 11 pennsylvania
07/15/2003 8:24 a.m. 07/21/2003 10:30 a.m. American Electric Power-Texas Central Company ERCOT Hurricane Claudette 230-300 108000 146.1 ERCOT 265 108000 2003 Hurricane 12 texas
07/09/2003 5:14 a.m. 07/09/2003 7:09 a.m. Dominion Virginia/North Carolina Power SERC Severe Thunderstorms 120 80000 1.916666667 SERC 120 80000 2003 Storm 13 northern central and eastern virginia
07/08/2003 4 a.m. 07/11/2003 4 a.m. American Electric Power ECAR Severe Thunderstorms 11,000 134500 84.0 RFC 11,000 134500 2003 Storm 14 ohio
07/07/2003 9 a.m. 07/07/2003 3 a.m. Com Ed MAIN Severe Thunderstorms NA 72000 6.0 RFC 0 72000 2003 Storm 15 northern illinois
07/05/2003 3 a.m. 07/05/2003 7 a.m. Com Ed MAIN Severe Storms 80 130000 4.0 RFC 80 130000 2003 Storm 16 northern illinois
07/04/2003 11:41 a.m. 07/06/2003 9 a.m. Cinergy ECAR Severe Storms 200 55142 45.31666667 RFC 200 55142 2003 Storm 17 southwest ohio, portions of indiana
07/04/2003 9 a.m. 07/06/2003 4 a.m. Consumers Energy ECAR Severe Thunderstorms 75-90 131000 55.0 RFC 83 131000 2003 Storm 18 lower michigan peninsula
07/04/2003 6 a.m. 07/04/2003 10 a.m. We Energies MAIN Severe Thunderstorms 150 52000 4.0 RFC 150 52000 2003 Storm 19 southeast wisconsin
07/02/2003 1:45 a.m. 07/02/2003 3:59 a.m. Pacific Gas and Electric Company WECC Unit Tripped 200 1 2.233333333 WECC 200 1 2003 Equipment Failure 20 northern california
07/01/2003 3:15 a.m. 07/01/2003 3:50 a.m. Arizona Public Service Company WECC Breaker Failure 1,000 47000 0.583333333 WECC 1,000 47000 2003 Equipment Failure 21 phoenix, arizona
06/30/2003 1 a.m. 06/30/2003 11:59 a.m. Entergy Corporation SPP Tropical Storm Bill NA 179299 10.98333333 SPP 0 179299 2003 Hurricane 22 coastal areas of
06/15/2003 3:12 a.m. 06/16/2003 5 a.m. Idaho Power Company WECC Public Appeal - 0 37.8 WECC 0 0 2003 Voluntary Reduction 23 idaho
05/15/2003 2 a.m. 06/16/2003 2 a.m. We Energies MAIN Flood 240 2 768.0 RFC 240 2 2003 Storm 24 upper michigan peninsula