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Electric Power Monthly

Data for March 2018  |  Release Date: May 24, 2018  |  Next Release: June 26, 2018 
|  full report  |  Re-release date: May 30, 2018   |  Revision

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SAS Output
Table B.1 Major Disturbances and Unusual Occurrences, Year-to-Date 2018

Year Month Event Date and Time Restoration Date and Time Duration Utility/Power Pool NERC Region Area Affected Type of Disturbance Loss (megawatts) Number of Customers Affected
2018 1 01/01/2018 5:43 PM ongoing ongoing American Electric Power - Texas TRE Texas: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-Severe Weather Unknown Unknown
2018 1 01/01/2018 6:21 PM 01/02/2018 6:11 PM 23 Hours, 50 Minutes Tennessee Valley Authority SERC Tennessee: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-Severe Weather Unknown Unknown
2018 1 01/01/2018 9:37 PM 01/02/2018 10:30 AM 12 Hours, 53 Minutes Memphis Light Gas and Water Division SERC Tennessee: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-System Operations Unknown Unknown
2018 1 01/02/2018 6:45 AM 01/02/2018 9:00 AM 2 Hours, 15 Minutes Duke Energy Progress SERC North Carolina: South Carolina: System-wide voltage reductions of 3 percent or more-Severe Weather 14998 Unknown
2018 1 01/02/2018 7:30 AM ongoing ongoing South Carolina Electric and Gas SERC South Carolina: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-Severe Weather 0 717000
2018 1 01/02/2018 10:00 AM 02/12/2018 8:00 AM 982 Hours, 0 Minutes Somerset Operating Company, LLC NPCC New York: Niagara County; Fuel supply emergencies that could impact electric power system adequacy or reliability-Fuel Supply Deficiency 675 Unknown
2018 1 01/15/2018 4:20 AM 01/18/2018 5:48 AM 73 Hours, 28 Minutes American Electric Power - Texas TRE Texas: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-Severe Weather Unknown Unknown
2018 1 01/16/2018 1:57 PM 01/16/2018 2:32 PM 0 Hours, 35 Minutes ERCOT TRE Texas: Electrical System Separation (Islanding) where part or parts of a power grid remain(s) operational in an otherwise blacked out area or within the partial failure of an integrated electrical system-Severe Weather Unknown Unknown
2018 1 01/16/2018 3:00 PM 01/18/2018 1:00 PM 46 Hours, 0 Minutes Memphis Light Gas and Water Division SERC Tennessee: Shelby County; Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-System Operations Unknown Unknown
2018 1 01/16/2018 3:00 PM 01/18/2018 1:00 PM 46 Hours, 0 Minutes Tennessee Valley Authority SERC Tennessee: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-Severe Weather Unknown Unknown
2018 1 01/17/2018 5:10 AM 01/17/2018 1:00 PM 7 Hours, 50 Minutes Cooperative Energy SERC Mississippi: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-System Operations 1788 420000
2018 1 01/17/2018 6:10 AM 01/17/2018 2:00 PM 7 Hours, 50 Minutes Louisiana Generating LLC SERC Louisiana: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-System Operations Unknown Unknown
2018 1 01/18/2018 5:00 AM 01/18/2018 9:45 AM 4 Hours, 45 Minutes Cooperative Energy SERC Mississippi: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-System Operations 1760 420000
2018 1 01/18/2018 5:00 AM 01/18/2018 11:00 AM 6 Hours, 0 Minutes Entergy Services, Inc. SERC Arkansas: Mississippi: Louisiana: Texas: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-Severe Weather 31500 Unknown
2018 1 01/18/2018 6:00 AM ongoing ongoing Louisiana Generating LLC SERC Louisiana: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-System Operations Unknown Unknown
2018 2 02/08/2018 1:25 PM 02/08/2018 1:31 PM 0 Hours, 6 Minutes Pacific Gas & Electric Co WECC California: Electrical System Separation (Islanding) where part or parts of a power grid remain(s) operational in an otherwise blacked out area or within the partial failure of an integrated electrical system-System Operations 30 10900
2018 3 03/01/2018 11:43 AM 03/01/2018 11:56 AM 0 Hours, 13 Minutes Pacific Gas & Electric Co WECC California: Electrical System Separation (Islanding) where part or parts of a power grid remain(s) operational in an otherwise blacked out area or within the partial failure of an integrated electrical system-Severe Weather 38 10898
2018 3 03/01/2018 9:57 PM 03/02/2018 10:14 AM 12 Hours, 17 Minutes The Illuminating Company RF Ohio: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 86501
2018 3 03/01/2018 10:20 PM 03/04/2018 8:00 PM 69 Hours, 40 Minutes Detroit Edison Co RF Michigan: Wayne County, Washtenaw County, Oakland County, Macomb County, Monroe County; Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 95000
2018 3 03/02/2018 7:00 AM ongoing ongoing Central Hudson Gas & Elec Corp NPCC New York: Dutchess County, Orange County, Greene County, Ulster County, Putnam County, Sullivan County, Albany County, Columbia County; Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 90000
2018 3 03/02/2018 8:00 AM 03/03/2018 11:00 PM 39 Hours, 0 Minutes American Electric Power - (RFC Reliability Region) (8400 Smiths Mill Road, New Albany Ohio 43054) RF Virginia: West Virginia: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 65198
2018 3 03/02/2018 8:42 AM ongoing ongoing Niagara Mohawk Power Corporation (dba National Grid) NPCC New York: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 63331
2018 3 03/02/2018 11:34 AM ongoing ongoing New York State Electric & Gas NPCC New York: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 50000
2018 3 03/02/2018 11:58 AM ongoing ongoing PPL Electric Utilities Corp RF Pennsylvania: Berks County, Bucks County, Carbon County, Chester County, Clinton County, Columbia County, Cumberland County, Dauphin County, Juniata County, Lackawanna County, Lancaster County, Lebanon County, Lehigh County, Luzerne County, Lycoming County, Monroe County, Montgomery County, Montour County, Northampton County, Northumberland County, Pike County, Schuylkill County, Snyder County; Electrical System Separation (Islanding) where part or parts of a power grid remain(s) operational in an otherwise blacked out area or within the partial failure of an integrated electrical system-Severe Weather Unknown 126000
2018 3 03/02/2018 12:00 PM ongoing ongoing Baltimore Gas and Electric RF Maryland: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the electric power system-Severe Weather 670 474019
2018 3 03/02/2018 12:00 PM 03/05/2018 12:00 AM 60 Hours, 0 Minutes Exelon Corporation/PECO RF Pennsylvania: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 630000
2018 3 03/02/2018 1:51 PM 03/04/2018 12:11 PM 46 Hours, 20 Minutes Metropolitan Edison Co RF Pennsylvania: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 233136
2018 3 03/02/2018 1:51 PM 03/05/2018 1:18 PM 71 Hours, 27 Minutes ISO New England NPCC Connecticut: Massachusetts: Rhode Island: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 325000
2018 3 03/02/2018 3:10 PM 03/06/2018 4:57 AM 85 Hours, 47 Minutes Jersey Central Power & Lt Co RF Ohio: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 249322
2018 3 03/02/2018 3:46 PM 03/04/2018 7:46 PM 52 Hours, 0 Minutes Consolidated Edison Co-NY Inc NPCC New York: New York County, Westchester County; Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 72353
2018 3 03/02/2018 5:00 PM 03/06/2018 11:00 AM 90 Hours, 0 Minutes Delmarva Power & Light Company RF Delaware: Maryland: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 60000
2018 3 03/07/2018 12:00 PM 03/07/2018 5:00 PM 5 Hours, 0 Minutes Exelon Corporation/PECO RF Pennsylvania: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 120000
2018 3 03/07/2018 4:10 PM 03/10/2018 11:32 AM 67 Hours, 22 Minutes Jersey Central Power & Lt Co RF New Jersey: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 216800
2018 3 03/07/2018 5:15 PM ongoing ongoing Public Service Electric & Gas RF New Jersey: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather 50 58000
2018 3 03/07/2018 7:37 PM 03/10/2018 4:35 PM 68 Hours, 58 Minutes ISO New England NPCC Connecticut: Massachusetts: Maine: New Hampshire: Rhode Island: Vermont: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 102000
2018 3 03/13/2018 8:50 AM 03/14/2018 11:22 PM 38 Hours, 32 Minutes ISO New England NPCC Massachusetts: Rhode Island: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 123629
2018 3 03/19/2018 11:29 PM 03/20/2018 3:37 AM 4 Hours, 8 Minutes Southern Company SERC Alabama: Georgia: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather 261 78220
2018 3 03/20/2018 7:00 PM 03/25/2018 6:30 AM 107 Hours, 30 Minutes Atlantic City Electric Co RF New Jersey: Atlantic County, Camden County, Cape May County, Gloucester County, Salem County, Cumberland County, Burlington County; Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather 80 124000
2018 3 03/24/2018 10:30 PM 03/26/2018 8:00 PM 45 Hours, 30 Minutes American Electric Power - (RFC Reliability Region) (8400 Smiths Mill Road, New Albany Ohio 43054) RF Virginia: West Virginia: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 81227

Note: Customers affected are estimates and are preliminary.
Source: Form OE-417, 'Electric Emergency Incident and Disturbance Report.'