massoutage

County annual report · FIPS 24001

2015 Allegany County, MD Power Outage Report

In 2015, customers in Allegany County, MD went without power for an average of 3.1 hours, a total of 99K customer-hours (Maryland average 2.0 hours). That ranks 4th worst of 24 Maryland counties and 897th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
3.1
32,504 customers
Customer-hours out
99K
Peak customers out
5,018
Outages ≥1,000 out
14
0 of 10,000+ · 634 total
Longest outage
1d 17h
began January 5, 2015
Rank in state
4th/24
897th of 2,484 US

Compared with MD, the US

Allegany County, MD average hours without power per customer compared with state and national averages, 2015Allegany County 3.1 hours, Maryland average 2.0 hours, US average 2.9 hoursAllegany CountyAllegany County3.1hMaryland averageMaryland average2.0hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Allegany County, MD customer-hours without power by month, 2015Jan 11K, Feb 8,346, Mar 11K, Apr 22K, May 4,750, Jun 5,681, Jul 8,638, Aug 1,997, Sep 6,424, Oct 5,021, Nov 10K, Dec 4,167010k20k30k11KJan8,346Feb11KMar22KApr4,750May5,681Jun8,638Jul1,997Aug6,424Sep5,021Oct10KNov4,167Dec
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Customer-hours; April was the worst month.

Allegany County year over year

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Allegany County, MD: average hours without power per customer by year2015: 3.1h; 2016: 2.5h; 2017: 3.3h; 2018: 7.1h, coverage 98%; 2019: 15.0h, coverage 97%; 2020: 3.5h, coverage 98%; 2021: 5.0h, coverage 99%; 2022: 7.0h, coverage 99%; 2023: 6.0h; 2024: 4.0h; 2025: 11.9h051015200%50%100%3.1h20152.5h20163.3h20177.1h201815.0h20193.5h20205.0h20217.0h20226.0h20234.0h202411.9h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Maryland customers tracked each year.

Biggest outages in Allegany County, 2015

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 8, 2015 12:00April 8, 2015 13:451h 45m5,0184,846
2May 22, 2015 13:30May 22, 2015 18:305h4,3342,193
3April 14, 2015 14:45April 15, 2015 00:4510h4,0163,021
4March 13, 2015 13:45March 13, 2015 19:456h3,6024,828
5February 2, 2015 17:30February 3, 2015 03:3010h2,2645,354
6November 12, 2015 20:45November 14, 2015 05:151d 8h2,2007,556
7March 31, 2015 01:45March 31, 2015 10:158h 30m2,1343,488
8April 14, 2015 09:15April 14, 2015 13:003h 45m1,9582,877
9January 26, 2015 18:15January 26, 2015 21:453h 30m1,9521,478
10April 3, 2015 01:15April 3, 2015 04:002h 45m1,2941,348

Outage episodes by size in 2015: 57 reached 100+ customers, 14 reached 1,000+ customers, 0 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Allegany County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
The Potomac Edison Company20152.2 hrs0.962.1 hrs0.95

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Maryland's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 32,504 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Allegany County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Allegany County, MD annual power outage report, 2015, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2015/maryland/allegany-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON