massoutage

County annual report · FIPS 25027

2022 Worcester County, MA Power Outage Report

In 2022, customers in Worcester County, MA went without power for an average of 4.1 hours, a total of 880K customer-hours (Massachusetts average 3.3 hours). That ranks 6th worst of 14 Massachusetts counties and 1616th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
4.1
212,617 customers
Customer-hours out
880K
Peak customers out
21,950
Outages ≥1,000 out
91
2 of 10,000+ · 934 total
Longest outage
3d 18h
began September 19, 2022
Rank in state
6th/14
1616th of 2,976 US

Compared with MA, the US and 2021

Worcester County, MA average hours without power per customer compared with state and national averages, 2022Worcester County 4.1 hours, Massachusetts average 3.3 hours, US average 8.3 hours, Worcester County, 2021 4.7 hoursWorcester CountyWorcester County4.1hMassachusetts averageMassachusetts average3.3hUS averageUS average8.3hWorcester County, 2021Worcester County, 20…4.7h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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Worcester County, MA customer-hours without power by month, 2022Jan 28K, Feb 66K, Mar 62K, Apr 28K, May 23K, Jun 65K, Jul 67K, Aug 134K, Sep 82K, Oct 37K, Nov 49K, Dec 238K0100k200k300k28KJan66KFeb62KMar28KApr23KMay65KJun67KJul134KAug82KSep37KOct49KNov238KDec
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Customer-hours; December was the worst month.

Worcester County year over year

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Worcester County, MA: average hours without power per customer by year2015: 2.8h; 2016: 4.2h; 2017: 7.1h; 2018: 11.4h, coverage 89%; 2019: 6.2h, coverage 89%; 2020: 17.8h, coverage 94%; 2021: 4.7h, coverage 99%; 2022: 4.1h, coverage 99%; 2023: 9.2h; 2024: 3.8h; 2025: 6.7h051015200%50%100%2.8h20154.2h20167.1h201711.4h20186.2h201917.8h20204.7h20214.1h20229.2h20233.8h20246.7h2025
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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 Worcester County, 2022

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
1August 22, 2022 10:30August 26, 2022 02:453d 16h21,95033K
2December 23, 2022 06:15December 26, 2022 01:152d 19h13,403206K
3August 17, 2022 10:15August 19, 2022 20:002d 9h9,60918K
4November 15, 2022 15:00November 16, 2022 03:0012h5,9967,123
5March 31, 2022 22:45April 1, 2022 11:0012h 15m5,7706,052
6February 16, 2022 14:00February 17, 2022 03:4513h 45m5,7263,925
7August 7, 2022 15:15August 9, 2022 00:301d 9h5,19011K
8March 7, 2022 21:30March 9, 2022 10:301d 13h5,15330K
9February 24, 2022 12:15February 25, 2022 00:0011h 45m4,9695,631
10August 20, 2022 17:15August 21, 2022 16:3023h 15m3,7762,811

Outage episodes by size in 2022: 291 reached 100+ customers, 91 reached 1,000+ customers, 2 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 Worcester County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Massachusetts Electric Co20222.4 hrs1.161.8 hrs1.05
Unitil Energy Systems20224.6 hrs1.4071 min0.88
Fitchburg Gas & Elec Light Co202271 min1.1071 min1.10
Town of Sterling - (MA)201319 min0.288 min0.13
Town of Ashburnham - (MA)-----
Town of Boylston - (MA)-----
Town of Holden - (MA)-----
Town of Paxton - (MA)-----
Town of Princeton - (MA)-----
Town of Shrewsbury - (MA)-----
Town of Templeton - (MA)-----
Town of West Boylston - (MA)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of Massachusetts's customers in 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 212,617 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. Worcester County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Worcester County, MA annual power outage report, 2022, 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/2022/massachusetts/worcester-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON