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
02/19/2011 12:30 p.m. 02/20/2011 4 a.m. Exelon Corporation/PECO RFC Major Storm UNK 118000 15.5 RFC 0 118000 2011 Storm 0 philadelphia area, pennsylvania
02/25/2011 3:20 a.m. 02/25/2011 6 a.m. Dominion - Virginia Power SERC Severe Weather UNK 50000 2.666666667 SERC 0 50000 2011 Storm 1 virginia
01/12/2011 6 a.m. 01/12/2011 2 a.m. National Grid NPCC Winter Storm N/A 80000 8.0 NPCC 0 80000 2011 Storm 2 massachusetts
02/17/2011 1 a.m. 02/23/2011 4:53 a.m. City of Roseville (Roseville Electric) WECC Suspected Cyber Attack - 0 147.8833333 WECC 0 0 2011 Cyber 3 california, roseville
02/09/2011 4:30 a.m. 02/10/2011 12:33 p.m. ERCOT ISO TRE Cold Weather Event N/A 0 20.05 ERCOT 0 0 2011 Cold 4 texas
02/19/2011 4:34 a.m. 02/19/2011 4:34 a.m. Delmarva Power & Light Company RFC Vandalism - 0 0.0 RFC 0 0 2011 Vandalism 5 delaware, harrington
01/26/2011 9:25 a.m. 01/27/2011 5 a.m. NV Energy WECC Suspected Telecommunications Attack - 0 31.58333333 WECC 0 0 2011 Cyber 6 carson city, nevada
01/18/2011 2 a.m. 01/18/2011 2 a.m. National Grid NPCC Vandalism - 0 0.0 NPCC 0 0 2011 Vandalism 7 massachusetts, whitman, auburn st substation
02/09/2011 2:54 a.m. 02/09/2011 5 a.m. Tacoma Power - TPWR WECC Vandalism - 0 2.1 WECC 0 0 2011 Vandalism 8 university place, washington
01/26/2011 6:28 a.m. 01/29/2011 5 a.m. Baltimore Gas and Electric Company RFC Winter Storm N/A 234326 70.53333333 RFC 0 234326 2011 Storm 9 maryland
01/11/2011 11:08 a.m. 01/11/2011 11:08 a.m. New Athens Generating Co. LLC NPCC Electrical Fault at Generator - 0 0.0 NPCC 0 0 2011 Equipment Failure 10 athens, new york
01/27/2011 9:30 a.m. 01/27/2011 9:30 a.m. Delmarva Power & Light Company RFC Vandalism - 0 0.0 RFC 0 0 2011 Vandalism 11 delaware, hockessin
01/25/2011 3:23 a.m. 01/25/2011 11 a.m. Atlantic City Electric RFC Vandalism - 0 7.616666667 RFC 0 0 2011 Vandalism 12 newark, delaware
02/10/2011 1 a.m. 02/10/2011 1 a.m. Tacoma Power - TPWR WECC Vandalism - 0 0.0 WECC 0 0 2011 Vandalism 13 washington, lagrande
02/01/2011 3 a.m. 02/03/2011 noon American Electric Power - Ohio RFC Winter Storm UNK 158013 45.0 RFC 0 158013 2011 Storm 14 indiana, ohio
02/01/2011 9 a.m. 02/02/2011 2 a.m. Exelon Corp/ComEd - Commonwealth Edison RFC Winter Storm UNK 190000 17.0 RFC 0 190000 2011 Storm 15 northern illinois
02/02/2011 3 a.m. 02/04/2011 11:59 a.m. Exelon Corporation/PECO RFC Winter Storm UNK 213000 68.98333333 RFC 0 213000 2011 Storm 16 philadelphia area, pennsylvania
01/26/2011 9:33 a.m. 01/27/2011 3:03 a.m. ITC Transmission RFC Vandalism - 0 29.5 RFC 0 0 2011 Vandalism 17 michigan
01/26/2011 5 a.m. 01/31/2011 8 a.m. Potomac Electric Power Co/ PEPCO Holdings Inc. RFC Winter Storm N/A 210000 111.0 RFC 0 210000 2011 Storm 18 montgomery and prince george's county, maryland and district of columbia
01/23/2011 7 a.m. 01/23/2011 1 a.m. PacifiCorp WECC Vandalism - 0 6.0 WECC 0 0 2011 Vandalism 19 franklin county, idaho
02/02/2011 5 a.m. 02/03/2011 10 a.m. Southwestern Public Service SPP Fuel Supply Deficiency (Natural Gas) UNK 0 29.0 SPP 0 0 2011 Fuel Supply 20 texas panhandle, southeastern new mexico
02/03/2011 3 a.m. 02/04/2011 noon San Diego Gas and Electric Company WECC Fuel Supply Deficiency (Natural Gas) N/A 0 21.0 WECC 0 0 2011 Fuel Supply 21 san diego area, california
02/03/2011 2:30 a.m. 02/03/2011 2:30 a.m. Potomac Electric Power Co/PEPCO Holdings Inc. RFC Suspected Cyber Attack N/A 0 0.0 RFC 0 0 2011 Cyber 22 maryland, bowie
01/24/2011 1:20 a.m. 01/24/2011 1:30 a.m. El Paso Electric Company WECC Suspicious Activity - 0 0.166666667 WECC 0 0 2011 Other 23 newman power plant, texas
02/25/2011 3:23 a.m. 02/27/2011 6 a.m. Baltimore Gas & Electric RFC Severe Weather UNK 93000 50.61666667 RFC 0 93000 2011 Storm 24 maryland