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Electric Power Monthly

Data for January 2023 Release Date: March 24, 2023 Next Release Date: April 25, 2023 Full report PDF
SAS Output
Table B.1 Major Disturbances and Unusual Occurrences, Year-to-Date 2023

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
2023 1 01/01/2023 9:55 AM 01/01/2023 10:30 AM 0 Hours, 35 Minutes Western Area Power Administration - Sierra Nevada Region (114 Parkshore Dr. Folsom, CA. 95630) WECC California: Sacramento County; Complete loss of monitoring or control capability at its staffed Bulk Electric System control center for 30 continuous minutes or more.-System Operations 0 0
2023 1 01/05/2023 7:30 AM 01/05/2023 9:30 AM 2 Hours, 0 Minutes Bonneville Power Administration WECC Washington: Lewis County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity 0 0
2023 1 01/05/2023 8:19 AM 01/05/2023 8:20 AM 0 Hours, 1 Minutes Entergy - Transmission Operations Engineering SERC Louisiana: Concordia Parish; 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-Transmission Interruption 23 1631
2023 1 01/06/2023 9:30 AM 01/06/2023 11:30 AM 2 Hours, 0 Minutes American Mun Power-Ohio, Inc RF Ohio: Sandusky County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity Unknown Unknown
2023 1 01/07/2023 10:00 PM 01/08/2023 9:00 PM 23 Hours, 0 Minutes Sacramento Municipal Util Dist WECC California: Sacramento County; Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather 458 185434
2023 1 01/12/2023 10:00 AM . . . Hours, . Minutes Sacramento Municipal Util Dist WECC California: Sacramento County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity 0 0
2023 1 01/12/2023 2:00 PM 01/13/2023 3:00 AM 13 Hours, 0 Minutes Southern Company SERC Alabama: Georgia: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather 1158 162000
2023 1 01/13/2023 12:00 AM 01/13/2023 12:00 AM 0 Hours, 0 Minutes Lower Colorado River Authority TRE Texas: Fayette County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity 0 0
2023 1 01/19/2023 11:00 AM 01/19/2023 1:00 PM 2 Hours, 0 Minutes Duke Energy Progress SERC South Carolina: Sumter County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity Unknown Unknown
2023 1 01/23/2023 7:05 AM 01/24/2023 5:17 PM 34 Hours, 12 Minutes ISO New England NPCC Connecticut: Rhode Island: Massachusetts: Vermont: New Hampshire: Maine: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 41000
2023 1 01/23/2023 9:21 AM . . . Hours, . Minutes Sacramento Municipal Util Dist WECC California: Sacramento County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity Unknown Unknown
2023 1 01/23/2023 5:00 PM . . . Hours, . Minutes Sacramento Municipal Util Dist WECC California: Sacramento County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity Unknown Unknown
2023 1 01/24/2023 3:25 PM 01/26/2023 8:20 PM 52 Hours, 55 Minutes CenterPoint Energy TRE Texas: Harris County; Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 100731
2023 1 01/24/2023 5:10 PM 01/24/2023 5:20 PM 0 Hours, 10 Minutes Ravenswood Generating Station NPCC New York: Queens County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity 0 0
2023 1 01/25/2023 3:30 AM 01/25/2023 1:00 PM 9 Hours, 30 Minutes Entergy Corp SERC Arkansas: Texas: Louisiana: Mississippi: Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 60958
2023 1 01/25/2023 3:57 PM 01/25/2023 5:38 PM 1 Hours, 41 Minutes Brownsville Public Utilities Board TRE Texas: Cameron County; Physical threat to its Facility excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the Facility. Or suspicious device or activity at its Facility.-Suspicious Activity 0 0
2023 1 01/30/2023 10:30 AM . . . Hours, . Minutes Onward Energy MRO Minnesota: Physical threat to its Bulk Electric System control center, excluding weather or natural disaster related threats, which has the potential to degrade the normal operation of the control center. Or suspicious device or activity at its Bulk Electric System control center.-Suspicious Activity Unknown Unknown
2023 1 01/31/2023 8:15 AM 02/06/2023 5:00 PM 152 Hours, 45 Minutes Oncor Electric Delivery Company LLC TRE Texas: Dallas County, Anderson County, Bosque County, Collin County, Comanche County, Cooke County, Delta County, Denton County, Ellis County, Erath County, Fannin County, Freestone County, Hamilton County, Henderson County, Hill County, Hood County, Hopkins County, Hunt County, Jack County, Johnson County, Kaufman County, Lamar County, Navarro County, Palo Pinto County, Parker County, Rains Count Loss of electric service to more than 50,000 customers for 1 hour or more-Severe Weather Unknown 360000

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