2018 Maryland Power Outage Report
In 2018, the average Maryland customer went without power for about 5.5 hours, the 15th worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.
Avg hrs / customer
5.5
vs prior year
▲ 181%
vs 2017
Customer-hours out
14.4M
Peak customers out
353,911
across the state at once
EAGLE-I coverage
98%
of MD customers
Counties reporting
23
Maryland year over year
All 23 Maryland counties, 2018
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 | Garrett County | 11.5 | 156K | 13,588 | 4,508 | 426 |
| 2 | Harford County | 9.2 | 1.0M | 112,536 | 45,995 | 514 |
| 3 | St. Mary's County | 7.1 | 397K | 55,898 | 11,852 | 886 |
| 4 | Allegany County | 7.1 | 230K | 32,504 | 3,951 | 610 |
| 5 | Charles County | 7.0 | 513K | 73,494 | 12,269 | 942 |
| 6 | Prince George's County | 6.9 | 2.4M | 349,773 | 85,071 | 524 |
| 7 | Calvert County | 6.5 | 257K | 39,458 | 5,613 | 770 |
| 8 | Baltimore County | 6.3 | 2.3M | 370,224 | 52,297 | 219 |
| 9 | Montgomery County | 6.2 | 2.4M | 395,748 | 108,677 | 681 |
| 10 | Cecil County | 5.4 | 310K | 57,202 | 18,964 | 820 |
| 11 | Howard County | 5.0 | 729K | 146,094 | 21,220 | 490 |
| 12 | Baltimore city | 4.4 | 1.2M | 277,924 | 29,572 | 307 |
| 13 | Worcester County | 4.4 | 138K | 31,542 | 9,328 | 630 |
| 14 | Anne Arundel County | 4.3 | 1.1M | 253,751 | 32,361 | 270 |
| 15 | Carroll County | 4.1 | 288K | 71,073 | 6,077 | 596 |
| 16 | Somerset County | 3.5 | 50K | 14,318 | 2,942 | 290 |
| 17 | Queen Anne's County | 3.2 | 85K | 26,465 | 14,132 | 551 |
| 18 | Washington County | 3.0 | 197K | 65,276 | 4,999 | 691 |
| 19 | Frederick County | 3.0 | 390K | 132,173 | 7,301 | 787 |
| 20 | Wicomico County | 2.0 | 125K | 61,546 | 17,135 | 692 |
| 21 | Dorchester County | 1.5 | 27K | 18,093 | 3,067 | 334 |
| 22 | Caroline County | 0.9 | 15K | 17,587 | 1,400 | 285 |
| 23 | Talbot County | 0.6 | 18K | 29,180 | 1,436 | 221 |
Biggest Maryland outages of 2018
Up to 25 county outage episodes with the most customers out at once.
| # | County | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|---|
| 1 | Montgomery County, MD | March 2, 2018 02:30 | March 6, 2018 01:00 | 3d 22h | 108,677 | 1.9M |
| 2 | Prince George's County, MD | March 1, 2018 12:45 | March 6, 2018 01:00 | 4d 12h | 85,071 | 1.9M |
| 3 | Baltimore County, MD | March 3, 2018 00:15 | March 3, 2018 08:30 | 8h 15m | 52,297 | 143K |
| 4 | Baltimore County, MD | March 3, 2018 09:15 | March 3, 2018 10:00 | 45m | 51,048 | 38K |
| 5 | Baltimore County, MD | March 3, 2018 10:45 | March 3, 2018 16:45 | 6h | 49,637 | 211K |
| 6 | Harford County, MD | March 2, 2018 04:45 | March 6, 2018 01:00 | 3d 20h | 45,995 | 783K |
| 7 | Baltimore County, MD | March 3, 2018 17:30 | March 3, 2018 23:15 | 5h 45m | 42,174 | 183K |
| 8 | Baltimore County, MD | March 4, 2018 00:15 | March 4, 2018 12:15 | 12h | 36,054 | 289K |
| 9 | Anne Arundel County, MD | March 3, 2018 00:15 | March 3, 2018 08:30 | 8h 15m | 32,361 | 101K |
| 10 | Anne Arundel County, MD | March 3, 2018 09:15 | March 3, 2018 10:00 | 45m | 32,056 | 23K |
| 11 | Baltimore city, MD | March 3, 2018 00:15 | March 3, 2018 08:30 | 8h 15m | 29,572 | 67K |
| 12 | Anne Arundel County, MD | March 3, 2018 10:45 | March 3, 2018 16:45 | 6h | 28,910 | 108K |
| 13 | Baltimore city, MD | March 3, 2018 09:15 | March 3, 2018 10:00 | 45m | 27,411 | 21K |
| 14 | Baltimore city, MD | March 3, 2018 10:45 | March 3, 2018 16:45 | 6h | 25,924 | 102K |
| 15 | Baltimore County, MD | March 4, 2018 13:00 | March 6, 2018 01:00 | 1d 12h | 25,852 | 484K |
| 16 | Howard County, MD | March 2, 2018 06:15 | March 6, 2018 01:00 | 3d 18h | 21,220 | 465K |
| 17 | Cecil County, MD | March 2, 2018 14:15 | March 6, 2018 01:00 | 3d 10h | 18,964 | 235K |
| 18 | Baltimore city, MD | March 3, 2018 17:30 | March 3, 2018 23:15 | 5h 45m | 18,276 | 75K |
| 19 | Baltimore County, MD | June 17, 2018 10:30 | June 26, 2018 03:00 | 8d 16h | 17,990 | 191K |
| 20 | Anne Arundel County, MD | March 3, 2018 17:30 | March 3, 2018 23:15 | 5h 45m | 17,579 | 63K |
| 21 | Wicomico County, MD | March 2, 2018 09:15 | March 3, 2018 23:15 | 1d 14h | 17,135 | 59K |
| 22 | Anne Arundel County, MD | March 4, 2018 00:15 | March 4, 2018 12:15 | 12h | 15,045 | 95K |
| 23 | Baltimore city, MD | March 4, 2018 00:15 | March 4, 2018 12:15 | 12h | 14,727 | 104K |
| 24 | Queen Anne's County, MD | May 13, 2018 17:15 | May 13, 2018 20:00 | 2h 45m | 14,132 | 21K |
| 25 | Charles County, MD | March 2, 2018 06:30 | March 6, 2018 01:00 | 3d 18h | 12,269 | 334K |
EAGLE-I tracked about 98% of Maryland's electricity customers in 2018; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Part of the 2018 US Power Outage Report.
Data from DOE EAGLE-I, every source we read.