massoutage

County annual report · FIPS 24005

2017 Baltimore County, MD Power Outage Report

In 2017, customers in Baltimore County, MD went without power for an average of 2.0 hours, a total of 724K customer-hours (Maryland average 1.9 hours). That ranks 10th worst of 24 Maryland counties and 1647th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
2.0
370,224 customers
Customer-hours out
724K
Peak customers out
23,507
Outages ≥1,000 out
32
1 of 10,000+ · 297 total
Longest outage
14d 21h
began May 18, 2017
Rank in state
10th/24
1647th of 2,786 US

Compared with MD, the US and 2016

Baltimore County, MD average hours without power per customer compared with state and national averages, 2017Baltimore County 2.0 hours, Maryland average 1.9 hours, US average 7.4 hours, Baltimore County, 2016 1.8 hoursBaltimore CountyBaltimore County2.0hMaryland averageMaryland average1.9hUS averageUS average7.4hBaltimore County, 2016Baltimore County, 20…1.8h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Baltimore County, MD customer-hours without power by month, 2017Jan 27K, Feb 31K, Mar 76K, Apr 17K, May 36K, Jun 25K, Jul 74K, Aug 334K, Sep 39K, Oct 25K, Nov 19K, Dec 19K0100k200k300k400k27KJan31KFeb76KMar17KApr36KMay25KJun74KJul334KAug39KSep25KOct19KNov19KDec
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Customer-hours; August was the worst month.

Baltimore County year over year

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Baltimore County, MD: average hours without power per customer by year2015: 1.7h; 2016: 1.8h; 2017: 2.0h; 2018: 6.3h, coverage 98%; 2019: 2.4h, coverage 97%; 2020: 1.7h, coverage 98%; 2021: 2.8h, coverage 99%; 2022: 7.8h, coverage 99%; 2023: 4.6h; 2024: 3.3h; 2025: 5.5h024680%50%100%1.7h20151.8h20162.0h20176.3h20182.4h20191.7h20202.8h20217.8h20224.6h20233.3h20245.5h2025
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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 Baltimore County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 2, 2017 15:15August 9, 2017 07:156d 16h23,507258K
2March 1, 2017 13:45March 5, 2017 03:453d 14h8,39656K
3August 18, 2017 08:15August 26, 2017 12:308d 4h5,41646K
4January 2, 2017 16:00January 3, 2017 01:009h4,8892,212
5February 11, 2017 14:45February 16, 2017 10:154d 19h4,64524K
6April 16, 2017 08:00April 19, 2017 02:302d 18h4,2262,954
7August 9, 2017 12:00August 14, 2017 14:005d 2h3,78919K
8July 4, 2017 11:30July 6, 2017 22:452d 11h3,77318K
9July 1, 2017 20:15July 4, 2017 05:452d 9h2,2657,662
10August 15, 2017 12:45August 18, 2017 07:302d 18h2,0535,369

Outage episodes by size in 2017: 111 reached 100+ customers, 32 reached 1,000+ customers, 1 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 Baltimore County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Baltimore Gas & Electric Co20171.6 hrs0.8374 min0.72

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 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 370,224 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. Baltimore County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Baltimore County, MD annual power outage report, 2017, 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/2017/maryland/baltimore-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON