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
01/27/2011 5 a.m. 01/30/2011 5 a.m. AES Greenidge, LLC NPCC Fuel Supply Deficiency (Coal) 108 0 60.0 NPCC 108 0 2011 Fuel Supply 0 central new york
03/22/2015 4:25 a.m. 03/22/2015 4:26 a.m. AES Laurel Mountain, LLC RFC Vandalism 24 0 0.016666667 RFC 24 0 2015 Vandalism 1 west virginia
03/01/2011 8 a.m. 03/05/2011 9:30 a.m. AES Somerset NPCC Fuel Supply Deficiency (Coal) 675 0 97.5 NPCC 675 0 2011 Fuel Supply 2 western new york
03/08/2011 8 a.m. 03/18/2011 9 a.m. AES Somerset NPCC Fuel Supply Deficiency (Coal) 676 0 241.0 NPCC 676 0 2011 Fuel Supply 3 western new york
08/03/2011 10 a.m. 08/19/2011 10 a.m. AES Somerset LLC NPCC Fuel Supply Deficiency (Coal) 675 0 384.0 NPCC 675 0 2011 Fuel Supply 4 western new york
09/16/2004 2 a.m. 09/16/2004 10:02 a.m. Alabama Electric Cooperative SERC Hurricane Ivan 263 75000 8.033333333 SERC 263 75000 2004 Hurricane 5 florida, alabama, baldwin county, escambia county, washington county
07/10/2005 12:53 p.m. 07/11/2005 5:33 a.m. Alabama Electric Coop Inc. SERC Hurricane Dennis 51 50000 28.66666667 SERC 51 50000 2005 Hurricane 6 southwest alabama and western panhandle of florida
10/24/2005 8 a.m. 11/02/2005 4:30 a.m. Allegheny Power MAAC Hurricane Wilma 400 303795 212.5 RFC 400 303795 2005 Hurricane 7 maryland, north central west virginia, southwestern pennsylvania, and northern pennsylvania
05/21/2004 5:30 a.m. 05/25/2004 noon Allegheny Power MAAC High Winds and Heavy Rains 162 225353 90.5 RFC 162 225353 2004 Storm 8 northern virginia, western pennsylvania, northern west virginia, western maryland
02/05/2004 8 a.m. 02/09/2004 8 a.m. Allegheny Power MAAC Ice Storm 60 87456 96.0 RFC 60 87456 2004 Cold 9 maryland, northern virginia, southeastern west virginia, northern pennsylvania and south central pennsylvania
09/18/2003 2 a.m. 09/24/2003 noon Allegheny Power MAAC Hurricane Isabel 3,085 237366 130.0 RFC 3,085 237366 2003 Hurricane 10 maryland, west virginia, virginia and pennsylvania
05/23/2011 12:30 p.m. 05/25/2011 12:30 p.m. Ameren SERC Severe Weather UNK 70000 48.0 SERC 0 70000 2011 Storm 11 missouri, st. louis county
04/22/2011 9 a.m. 04/22/2011 11 a.m. Ameren SERC Severe Weather - 55000 2.0 SERC 0 55000 2011 Storm 12 metro st. louis area, missouri
06/27/2011 noon 06/29/2011 1 a.m. AMEREN SERC Severe Thunderstorms UNK 80000 49.0 SERC 0 80000 2011 Storm 13 illinois; missouri
07/19/2006 6 a.m. 07/31/2006 8 a.m. Ameren Corporation MRO Severe Storms (3) (Many customers experienced multiple outages.) 1,500 0 278.0 MRO 1,500 2500000 2006 Storm 14 greater st. louis metropolitan area (missouri and illinois)
04/19/2011 8 a.m. 04/19/2011 10 a.m. Ameren Illinois SERC Severe Weather UNK 80000 2.0 SERC 0 80000 2011 Storm 15 illinois
11/17/2013 12:35 p.m. 11/20/2013 11 a.m. Ameren Missouri SERC Severe Weather - Tornadoes Unknown 200000 70.41666667 SERC 0 200000 2013 Storm 16 central missouri, central illinois
12/10/2015 9:25 a.m. 12/10/2015 10:30 a.m. Ameren Missouri SERC System Operations 400 1 1.083333333 SERC 400 1 2015 Fuel Supply 17 missouri: new madrid county;
12/31/2015 11 a.m. 12/31/2015 11 a.m. Ameren Missouri SERC Sabotage - 0 0.0 SERC 0 0 2015 Vandalism 18 missouri
01/21/2014 12:14 p.m. 01/21/2014 12:39 p.m. Ameren Missouri SERC Physical Attack - Vandalism 10 0 0.416666667 SERC 10 0 2014 Vandalism 19 missouri
02/20/2014 4:40 a.m. 02/21/2014 11:59 a.m. Ameren Missouri SERC Severe Weather - Snow/Ice Unknown 66000 31.31666667 SERC 0 66000 2014 Cold 20 illinois, missouri
05/31/2013 7:30 a.m. 06/01/2013 8 a.m. Ameren Missouri SERC Severe Weather - Thunderstorms Unknown 100000 24.5 SERC 0 100000 2013 Storm 21 st. louis metro area missouri
01/08/2014 5 a.m. 01/08/2014 6:30 a.m. American Electric Power RFC Voltage Reduction due to Severe Weather - Cold 576 0 1.5 RFC 576 0 2014 Fuel Supply 22 unknown
11/17/2013 4:19 a.m. 11/18/2013 6 a.m. American Electric Power RFC Severe Weather - Thunderstorms Unknown 77346 25.68333333 RFC 0 77346 2013 Storm 23 michigan, indiana
02/07/2014 4:50 a.m. 02/07/2014 8:30 a.m. American Electric Power TRE Public Appeal to Reduce Electricity Usage Unknown 0 3.666666667 ERCOT 0 0 2014 Voluntary Reduction 24 texas