massoutage

County annual report · FIPS 25009

2017 Essex County, MA Power Outage Report

In 2017, customers in Essex County, MA went without power for an average of 20.0 hours, a total of 4.3M customer-hours (Massachusetts average 4.7 hours). That ranks 2nd worst of 14 Massachusetts counties and 276th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
20.0
216,314 customers
Customer-hours out
4.3M
Peak customers out
78,644
Outages ≥1,000 out
68
3 of 10,000+ · 993 total
Longest outage
5d 7h
began October 30, 2017
Rank in state
2nd/14
276th of 2,786 US

Compared with MA, the US and 2016

Essex County, MA average hours without power per customer compared with state and national averages, 2017Essex County 20.0 hours, Massachusetts average 4.7 hours, US average 7.4 hours, Essex County, 2016 3.2 hoursEssex CountyEssex County20.0hMassachusetts averageMassachusetts average4.7hUS averageUS average7.4hEssex County, 2016Essex County, 20163.2h
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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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Essex County, MA customer-hours without power by month, 2017Jan 43K, Feb 50K, Mar 630K, Apr 24K, May 21K, Jun 64K, Jul 39K, Aug 19K, Sep 30K, Oct 2.6M, Nov 779K, Dec 60K01M2M3M43KJan50KFeb630KMar24KApr21KMay64KJun39KJul19KAug30KSep2.6MOct779KNov60KDec
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Customer-hours; October was the worst month.

Essex County year over year

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Essex County, MA: average hours without power per customer by year2015: 1.9h; 2016: 3.2h; 2017: 20.0h; 2018: 26.6h, coverage 89%; 2019: 8.1h, coverage 89%; 2020: 2.9h, coverage 94%; 2021: 5.9h, coverage 99%; 2022: 4.5h, coverage 99%; 2023: 8.7h; 2024: 3.3h; 2025: 4.1h01020300%50%100%1.9h20153.2h201620.0h201726.6h20188.1h20192.9h20205.9h20214.5h20228.7h20233.3h20244.1h2025
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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 Massachusetts customers tracked each year.

Biggest outages in Essex County, 2017

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
1October 30, 2017 00:45November 4, 2017 08:005d 7h78,6443.3M
2March 14, 2017 14:30March 17, 2017 04:002d 13h43,083583K
3February 12, 2017 22:30February 13, 2017 10:0011h 30m11,36622K
4May 6, 2017 13:00May 6, 2017 22:459h 45m6,5632,279
5September 3, 2017 10:45September 4, 2017 03:1516h 30m6,1278,634
6January 23, 2017 20:30January 25, 2017 18:301d 22h6,06521K
7July 2, 2017 09:00July 2, 2017 15:456h 45m5,79311K
8February 22, 2017 01:00February 22, 2017 17:3016h 30m5,3104,350
9December 23, 2017 06:30December 24, 2017 21:151d 14h4,62430K
10July 24, 2017 15:45July 25, 2017 07:3015h 45m4,4997,882

Outage episodes by size in 2017: 203 reached 100+ customers, 68 reached 1,000+ customers, 3 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 Essex County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

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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 Massachusetts's customers in 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 216,314 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. Essex County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Essex County, MA 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/massachusetts/essex-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON