massoutage

County annual report · FIPS 24009

2016 Calvert County, MD Power Outage Report

In 2016, customers in Calvert County, MD went without power for an average of 1.9 hours, a total of 75K customer-hours (Maryland average 2.2 hours). That ranks 18th worst of 24 Maryland counties and 1378th of 2,391 nationally.

Summary data CSVJSON
Avg hrs / customer
1.9
39,458 customers
Customer-hours out
75K
Peak customers out
2,802
Outages ≥1,000 out
10
0 of 10,000+ · 679 total
Longest outage
2d 12h
began April 3, 2016
Rank in state
18th/24
1378th of 2,391 US

Compared with MD, the US and 2015

Calvert County, MD average hours without power per customer compared with state and national averages, 2016Calvert County 1.9 hours, Maryland average 2.2 hours, US average 3.9 hours, Calvert County, 2015 2.0 hoursCalvert CountyCalvert County1.9hMaryland averageMaryland average2.2hUS averageUS average3.9hCalvert County, 2015Calvert County, 20152.0h
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Average hours without power per customer in 2016; last bar is this county in 2015.

Month by month

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Calvert County, MD customer-hours without power by month, 2016Jan 3,021, Feb 5,614, Mar 2,294, Apr 17K, May 1,744, Jun 7,555, Jul 12K, Aug 7,367, Sep 7,620, Oct 4,589, Nov 3,660, Dec 2,81905k10k15k20k3,021Jan5,614Feb2,294Mar17KApr1,744May7,555Jun12KJul7,367Aug7,620Sep4,589Oct3,660Nov2,819Dec
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Customer-hours; April was the worst month.

Calvert County year over year

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Calvert County, MD: average hours without power per customer by year2015: 2.0h; 2016: 1.9h; 2017: 1.9h; 2018: 6.5h, coverage 98%; 2019: 1.8h, coverage 97%; 2020: 6.6h, coverage 98%; 2021: 3.2h, coverage 99%; 2022: 9.5h, coverage 99%; 2023: 2.7h; 2024: 3.4h; 2025: 5.2h02.557.5100%50%100%2.0h20151.9h20161.9h20176.5h20181.8h20196.6h20203.2h20219.5h20222.7h20233.4h20245.2h2025
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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 Calvert County, 2016

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 19, 2016 22:00July 20, 2016 18:0020h2,8023,379
2April 7, 2016 14:45April 8, 2016 06:4516h2,0793,352
3April 3, 2016 03:30April 5, 2016 16:152d 12h1,83410K
4July 18, 2016 21:30July 19, 2016 06:158h 45m1,6241,973
5November 14, 2016 12:30November 14, 2016 20:308h1,291403
6August 2, 2016 17:30August 3, 2016 02:459h 15m1,1931,126
7August 1, 2016 17:45August 2, 2016 16:1522h 30m1,0931,170
8September 19, 2016 07:30September 19, 2016 22:4515h 15m1,0932,489
9August 15, 2016 17:45August 15, 2016 19:151h 30m1,079543
10June 14, 2016 09:30June 14, 2016 12:303h1,0781,802

Outage episodes by size in 2016: 49 reached 100+ customers, 10 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 Calvert County reported on EIA Form 861 for 2016, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Baltimore Gas & Electric Co20162.0 hrs1.061.7 hrs1.00
Southern Maryland Elec Coop Inc-----

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 2016; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 39,458 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. Calvert County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Calvert County, MD annual power outage report, 2016, 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/2016/maryland/calvert-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON