2020 Maryland Power Outage Report
In 2020, the average Maryland customer went without power for about 2.2 hours, the 42nd worst of 51 states (US average 8.0 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.
Avg hrs / customer
2.2
vs prior year
▼ 16%
vs 2019
Customer-hours out
5.8M
Peak customers out
115,431
across the state at once
EAGLE-I coverage
98%
of MD customers
Counties reporting
24
Maryland year over year
All 24 Maryland counties, 2020
Ranked by average hours without power per customer. Each county links to its annual report.
| # | County | Hrs / customer | Customer-hours | Customers | Peak out | Events |
|---|---|---|---|---|---|---|
| 1 | Calvert County | 6.6 | 260K | 39,458 | 11,675 | 687 |
| 2 | Garrett County | 6.5 | 89K | 13,588 | 4,561 | 454 |
| 3 | Cecil County | 5.1 | 291K | 57,202 | 15,015 | 737 |
| 4 | St. Mary's County | 4.3 | 239K | 55,898 | 10,173 | 818 |
| 5 | Dorchester County | 4.1 | 75K | 18,093 | 7,837 | 582 |
| 6 | Worcester County | 3.9 | 124K | 31,542 | 11,360 | 813 |
| 7 | Caroline County | 3.9 | 69K | 17,587 | 5,791 | 492 |
| 8 | Allegany County | 3.5 | 115K | 32,504 | 5,174 | 612 |
| 9 | Talbot County | 3.1 | 89K | 29,180 | 7,790 | 422 |
| 10 | Charles County | 3.0 | 218K | 73,494 | 3,370 | 1,004 |
| 11 | Somerset County | 2.8 | 41K | 14,318 | 3,375 | 444 |
| 12 | Queen Anne's County | 2.7 | 71K | 26,465 | 5,697 | 651 |
| 13 | Wicomico County | 2.6 | 160K | 61,546 | 14,712 | 854 |
| 14 | Kent County | 2.4 | 26K | 10,903 | 2,793 | 374 |
| 15 | Anne Arundel County | 2.4 | 605K | 253,751 | 19,913 | 358 |
| 16 | Baltimore city | 2.2 | 617K | 277,924 | 9,205 | 298 |
| 17 | Harford County | 2.1 | 238K | 112,536 | 6,047 | 555 |
| 18 | Frederick County | 2.0 | 266K | 132,173 | 6,917 | 831 |
| 19 | Prince George's County | 1.9 | 681K | 349,773 | 14,859 | 570 |
| 20 | Carroll County | 1.8 | 130K | 71,073 | 2,989 | 674 |
| 21 | Baltimore County | 1.7 | 622K | 370,224 | 10,632 | 290 |
| 22 | Washington County | 1.5 | 98K | 65,276 | 4,117 | 697 |
| 23 | Montgomery County | 1.3 | 515K | 395,748 | 10,872 | 760 |
| 24 | Howard County | 1.1 | 164K | 146,094 | 3,424 | 562 |
Biggest Maryland outages of 2020
Up to 25 county outage episodes with the most customers out at once.
| # | County | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|---|
| 1 | Anne Arundel County, MD | August 1, 2020 15:45 | August 8, 2020 21:30 | 7d 5h | 19,913 | 219K |
| 2 | Cecil County, MD | August 4, 2020 06:15 | August 7, 2020 04:45 | 2d 22h | 15,015 | 167K |
| 3 | Prince George's County, MD | July 6, 2020 06:00 | July 9, 2020 10:00 | 3d 4h | 14,859 | 94K |
| 4 | Wicomico County, MD | August 4, 2020 08:15 | August 7, 2020 00:45 | 2d 16h | 14,712 | 115K |
| 5 | Calvert County, MD | August 4, 2020 09:45 | August 6, 2020 02:00 | 1d 16h | 11,675 | 139K |
| 6 | Worcester County, MD | August 4, 2020 11:30 | August 6, 2020 05:15 | 1d 17h | 11,360 | 54K |
| 7 | Montgomery County, MD | September 9, 2020 23:45 | September 12, 2020 23:00 | 2d 23h | 10,872 | 9,540 |
| 8 | Baltimore County, MD | July 6, 2020 11:00 | July 10, 2020 10:15 | 3d 23h | 10,632 | 73K |
| 9 | St. Mary's County, MD | August 4, 2020 04:00 | August 6, 2020 04:45 | 2d | 10,173 | 95K |
| 10 | Baltimore city, MD | July 17, 2020 12:45 | July 22, 2020 06:15 | 4d 17h | 9,205 | 30K |
| 11 | Baltimore County, MD | July 20, 2020 20:15 | July 27, 2020 06:15 | 6d 10h | 9,044 | 70K |
| 12 | Baltimore city, MD | November 13, 2020 13:00 | November 21, 2020 06:00 | 7d 17h | 8,846 | 37K |
| 13 | Calvert County, MD | July 6, 2020 22:00 | July 7, 2020 23:15 | 1d 1h | 8,457 | 22K |
| 14 | Prince George's County, MD | September 12, 2020 06:30 | September 13, 2020 00:15 | 17h 45m | 8,380 | 6,808 |
| 15 | Prince George's County, MD | July 17, 2020 11:45 | July 26, 2020 05:45 | 8d 18h | 8,218 | 87K |
| 16 | Cecil County, MD | June 24, 2020 11:30 | June 24, 2020 13:15 | 1h 45m | 8,044 | 2,016 |
| 17 | Dorchester County, MD | August 4, 2020 10:15 | August 6, 2020 08:30 | 1d 22h | 7,837 | 50K |
| 18 | Talbot County, MD | August 4, 2020 12:15 | August 7, 2020 00:45 | 2d 12h | 7,790 | 68K |
| 19 | Anne Arundel County, MD | August 31, 2020 12:15 | September 6, 2020 05:15 | 5d 17h | 7,623 | 103K |
| 20 | Calvert County, MD | August 9, 2020 13:45 | August 10, 2020 06:30 | 16h 45m | 7,137 | 8,870 |
| 21 | Frederick County, MD | August 23, 2020 21:30 | August 25, 2020 03:45 | 1d 6h | 6,917 | 23K |
| 22 | Anne Arundel County, MD | July 3, 2020 20:45 | July 14, 2020 10:15 | 10d 13h | 6,163 | 49K |
| 23 | Montgomery County, MD | September 2, 2020 10:45 | September 5, 2020 09:30 | 2d 22h | 6,081 | 21K |
| 24 | Baltimore city, MD | July 22, 2020 10:00 | July 27, 2020 08:15 | 4d 22h | 6,053 | 39K |
| 25 | Harford County, MD | July 22, 2020 16:30 | July 26, 2020 16:00 | 3d 23h | 6,047 | 15K |
EAGLE-I tracked about 98% of Maryland's electricity customers in 2020; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Part of the 2020 US Power Outage Report.
Data from DOE EAGLE-I, every source we read.