Electric Power Monthly

Data for June 2016  |  Release Date: August 24, 2016  |  Next Release: September 26, 2016 
|  full report

Previous Issues

SAS Output
Table B.1 Major Disturbances and Unusual Occurrences, Year-to-Date 2016

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
2016 1 01/10/2016 8:46 PM 01/11/2016 5:25 AM 8 Hours, 39 Minutes ISO New England NPCC Maine: Connecticut: Massachusetts: Vermont: New Hampshire: Rhode Island: Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 59859
2016 1 01/22/2016 3:52 PM 01/24/2016 12:30 PM 44 Hours, 38 Minutes Duke Energy Progress SERC North Carolina: South Carolina: Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 150000
2016 1 01/23/2016 7:49 AM 01/23/2016 9:05 AM 1 Hours, 16 Minutes FirstEnergy Corp. Jersey Central Power & Light RFC New Jersey: Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 50900
2016 2 02/05/2016 11:21 AM 02/06/2016 3:48 PM 28 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-Weather Unknown 115057
2016 2 02/13/2016 12:44 PM 02/13/2016 4:27 PM 3 Hours, 43 Minutes Pacific Gas & Electric Co SERC California Electrical System Separation (Islanding) where part or parts of a power grid remain(s) operational i 7 4300
2016 2 02/16/2016 8:35 AM 02/16/2016 5:28 PM 8 Hours, 53 Minutes American Electric Power - (RFC Reliability Region) (8400 Smiths Mill Road, New Albany Ohio 43054) RFC Virginia: Roanoke County, Montgomery County; West Virginia: Kanawha County, Cabell County; Tennessee: Sullivan County; Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 52640
2016 2 02/19/2016 10:00 PM 02/20/2016 11:13 PM 25 Hours, 13 Minutes Detroit Edison Co RFC Michigan Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 145314
2016 2 02/24/2016 2:45 PM 02/25/2016 5:00 AM 14 Hours, 15 Minutes Duke Energy Carolinas SERC North Carolina: South Carolina Loss of electric service to more than 50,000 customers for 1 hour or more-Weather 400 284610
2016 2 02/25/2016 1:44 AM 02/25/2016 2:45 PM 13 Hours, 1 Minutes ISO New England NPCC Connecticut: Maine: Massachusetts: Rhode Island: Vermont: Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 114190
2016 2 02/26/2016 12:01 AM ongoing ongoing California Department of Water Resources WECC California: San Bernardino County Fuel supply emergencies that could impact electric power system adequacy or reliability-Fuel Supply 0 0
2016 3 03/01/2016 3:00 PM ongoing ongoing Puget Sound Energy WECC Washington: King County, Whatcom County, Kitsap County, Skagit County; Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 56000
2016 3 03/03/2016 11:00 AM 04/16/2016 7:47 PM 1,064 Hours, 47 Minutes California Department of Water Resources WECC California: San Bernardino County; Fuel supply emergencies that could impact electric power system adequacy or reliability-Fuel Supply 0 0
2016 3 03/23/2016 5:00 AM 03/25/2016 11:59 PM 66 Hours, 59 Minutes Xcel Energy/Public Service Company of Colorado WECC Colorado: Denver, City and County of[12]; Loss of electric service to more than 50,000 customers for 1 hour or more-Weather 0 0
2016 4 04/02/2016 11:08 AM 04/02/2016 11:33 AM 0 Hours, 25 Minutes California Department of Water Resources WECC California Uncontrolled loss of 300 Megawatts or more of firm system loads for more than 15 minutes from a sing 360 0
2016 4 04/18/2016 5:05 AM 04/20/2016 7:55 AM 50 Hours, 50 Minutes CenterPoint Energy TRE Texas: Harris County Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 415103
2016 4 04/27/2016 5:50 AM 04/28/2016 1:35 AM 19 Hours, 45 Minutes CenterPoint Energy TRE Texas: Harris County Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 214864
2016 5 05/08/2016 9:12 AM ongoing ongoing Peak Reliability WECC Washington: Clark County; Islanding-Islanding Unknown Unknown
2016 5 05/10/2016 8:45 PM 05/13/2016 3:00 AM 54 Hours, 15 Minutes Oncor Electric Delivery Company LLC TRE Texas: Dallas County, Tarrant County, Parker County; Loss of electric service to more than 50,000 customers for 1 hour or more-Distribution Interruption Unknown 85000
2016 5 05/19/2016 9:36 PM 05/20/2016 1:00 AM 3 Hours, 24 Minutes Pacificorp WECC Utah: Uncontrolled loss of 300 Megawatts or more of firm system loads for more than 15 minutes from a sing 461 85179
2016 5 05/20/2016 12:00 AM 05/22/2016 5:00 AM 53 Hours, 0 Minutes Entergy Services, Inc. SERC Louisiana: Loss of electric service to more than 50,000 customers for 1 hour or more-Distribution Interruption Unknown 85000
2016 5 05/20/2016 1:15 AM ongoing ongoing Entergy Transmission - SOC SERC Louisiana: Loss of electric service to more than 50,000 customers for 1 hour or more-Weather Unknown 57184
2016 5 05/31/2016 7:30 AM 06/13/2016 7:27 AM 311 Hours, 57 Minutes Upstate New York Power Producers NPCC New York: Tompkins County; Fuel supply emergencies that could impact electric power system adequacy or reliability-Fuel Supply 150 Unknown
2016 6 06/17/2016 3:40 PM 06/18/2016 8:34 AM 16 Hours, 54 Minutes Southern Company SERC Georgia, Alabama, Mississippi, Florida Loss of electric service to more than 50,000 customers for 1 hour or more-Weather 304 91260

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