massoutage

2015 Maryland Power Outage Report

In 2015, the average Maryland customer went without power for about 2.0 hours, the 31st worst of 49 states (US average 2.8 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
2.0
vs prior year
-
no earlier year loaded
Customer-hours out
5.4M
Peak customers out
95,215
across the state at once
EAGLE-I coverage
n/a
of MD customers
Counties reporting
24

Maryland year over year

Maryland: average hours without power per customer by year2015: 2.0h; 2016: 2.2h; 2017: 1.9h; 2018: 5.5h, coverage 98%; 2019: 2.6h, coverage 97%; 2020: 2.2h, coverage 98%; 2021: 2.5h, coverage 99%; 2022: 5.5h, coverage 99%; 2023: 3.6h; 2024: 2.8h; 2025: 4.2h02460%50%100%2.0h20152.2h20161.9h20175.5h20182.6h20192.2h20202.5h20215.5h20223.6h20232.8h20244.2h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2015

Customer-hours without power across Maryland; June was the worst.

CSVJSON
Maryland customer-hours without power by month, 2015Jan 167K, Feb 428K, Mar 208K, Apr 283K, May 374K, Jun 1.8M, Jul 600K, Aug 356K, Sep 345K, Oct 422K, Nov 210K, Dec 172K0500k1M1.5M2M167KJan428KFeb208KMar283KApr374KMay1.8MJun600KJul356KAug345KSep422KOct210KNov172KDec
Use the arrow keys to read values.

All 24 Maryland counties, 2015

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Garrett County7.7104K13,5882,932470
2Cecil County5.6319K57,20219,264545
3Talbot County3.5103K29,18011,269291
4Allegany County3.199K32,5045,018634
5Charles County3.1224K73,49422,010883
6Frederick County2.8372K132,1739,606897
7Harford County2.5286K112,53610,298544
8Anne Arundel County2.5637K253,75121,967273
9St. Mary's County2.5140K55,89820,346838
10Worcester County2.373K31,5422,722531
11Calvert County2.077K39,4585,860659
12Queen Anne's County1.950K26,4652,439480
13Montgomery County1.8728K395,74820,436613
14Washington County1.8117K65,2764,966669
15Baltimore city1.8489K277,9247,481380
16Baltimore County1.7625K370,22420,219200
17Prince George's County1.6549K349,77313,355525
18Carroll County1.5110K71,0732,641535
19Somerset County1.522K14,3182,362274
20Dorchester County1.222K18,0932,493337
21Howard County1.2169K146,0947,405510
22Wicomico County1.165K61,5465,916568
23Caroline County0.916K17,5871,299285
24Kent County0.22,46610,90330847

Biggest Maryland outages of 2015

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Charles County, MDJune 20, 2015 23:30June 22, 2015 08:451d 9h22,01055K
2Anne Arundel County, MDJune 7, 2015 02:15June 29, 2015 09:0022d 6h21,967181K
3Montgomery County, MDJune 23, 2015 13:00June 26, 2015 01:152d 12h20,436205K
4St. Mary's County, MDSeptember 22, 2015 13:00September 22, 2015 17:004h20,34612K
5Baltimore County, MDMay 27, 2015 10:15June 7, 2015 01:3010d 15h20,21939K
6Cecil County, MDJune 23, 2015 21:30June 27, 2015 08:303d 11h19,264215K
7Baltimore County, MDJune 7, 2015 02:15June 29, 2015 09:0022d 6h14,237162K
8Prince George's County, MDJune 29, 2015 11:00July 3, 2015 10:303d 23h13,35591K
9Cecil County, MDJune 1, 2015 06:15June 1, 2015 12:156h12,9316,036
10Talbot County, MDOctober 7, 2015 04:00October 7, 2015 07:453h 45m11,26941K
11Montgomery County, MDDecember 12, 2015 13:15December 12, 2015 21:308h 15m10,6163,043
12Harford County, MDJune 14, 2015 18:00June 29, 2015 09:0014d 15h10,298165K
13Charles County, MDApril 7, 2015 17:00April 8, 2015 02:159h 15m10,0158,241
14Frederick County, MDMay 31, 2015 10:30May 31, 2015 17:307h9,60618K
15Montgomery County, MDJune 17, 2015 05:00June 22, 2015 08:155d 3h9,012101K
16St. Mary's County, MDApril 7, 2015 17:00April 7, 2015 19:002h8,6535,612
17Frederick County, MDJune 18, 2015 20:30June 19, 2015 18:0021h 30m8,41010K
18Anne Arundel County, MDFebruary 14, 2015 14:00February 18, 2015 07:003d 17h8,14481K
19Baltimore County, MDMarch 12, 2015 05:45March 16, 2015 08:154d 2h7,63726K
20Baltimore city, MDJune 7, 2015 18:45June 27, 2015 07:3019d 12h7,48165K
21Howard County, MDJune 20, 2015 15:45June 29, 2015 09:008d 17h7,40539K
22Talbot County, MDOctober 2, 2015 01:15October 2, 2015 04:303h 15m7,16417K
23Cecil County, MDOctober 16, 2015 01:45October 16, 2015 03:452h6,8826,333
24Charles County, MDJuly 20, 2015 12:30July 21, 2015 02:0013h 30m6,6606,358
25Anne Arundel County, MDMay 9, 2015 14:15May 16, 2015 04:306d 14h6,55617K
EAGLE-I tracked about n/a of Maryland's electricity customers in 2015; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Other states in 2015:WVWAMINCRILAOKNJ

Part of the 2015 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.