massoutage

County annual report · FIPS 44009

2021 Washington County, RI Power Outage Report

In 2021, customers in Washington County, RI went without power for an average of 47.3 hours, a total of 2.3M customer-hours (Rhode Island average 8.1 hours). That ranks 1st worst of 5 Rhode Island counties and 190th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
47.3
48,730 customers
Customer-hours out
2.3M
Peak customers out
52,955
Outages ≥1,000 out
29
2 of 10,000+ · 704 total
Longest outage
4d 19h
began August 22, 2021
Rank in state
1st/5
190th of 2,974 US

Compared with RI, the US and 2020

Washington County, RI average hours without power per customer compared with state and national averages, 2021Washington County 47.3 hours, Rhode Island average 8.1 hours, US average 8.9 hours, Washington County, 2020 18.6 hoursWashington CountyWashington County47.3hRhode Island averageRhode Island average8.1hUS averageUS average8.9hWashington County, 2020Washington County, 2…18.6h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Washington County, RI customer-hours without power by month, 2021Jan 1,662, Feb 37K, Mar 44K, Apr 2,724, May 8,234, Jun 20K, Jul 28K, Aug 1.5M, Sep 19K, Oct 536K, Nov 79K, Dec 2,6480500k1M1.5M2M1,662Jan37KFeb44KMar2,724Apr8,234May20KJun28KJul1.5MAug19KSep536KOct79KNov2,648Dec
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Customer-hours; August was the worst month.

Washington County year over year

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Washington County, RI: average hours without power per customer by year2015: 8.2h; 2016: 6.4h; 2017: 32.5h; 2018: 30.5h, coverage 99%; 2019: 18.2h, coverage 99%; 2020: 18.6h, coverage 99%; 2021: 47.3h, coverage 99%; 2022: 3.5h, coverage 99%; 2023: 3.3h; 2024: 4.2h; 2025: 3.6h02040600%50%100%8.2h20156.4h201632.5h201730.5h201818.2h201918.6h202047.3h20213.5h20223.3h20234.2h20243.6h2025
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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 Rhode Island customers tracked each year.

Biggest outages in Washington County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 22, 2021 09:30August 27, 2021 05:004d 19h52,9551.5M
2October 26, 2021 14:00October 31, 2021 01:154d 11h42,616533K
3November 13, 2021 21:00November 15, 2021 20:451d 23h9,86867K
4July 20, 2021 16:15July 21, 2021 01:008h 45m7,58011K
5February 1, 2021 20:15February 3, 2021 05:451d 9h6,93134K
6November 12, 2021 18:00November 13, 2021 08:4514h 45m4,9478,564
7March 1, 2021 18:45March 1, 2021 20:001h 15m4,8313,620
8April 20, 2021 16:30April 20, 2021 21:154h 45m3,2921,546
9March 2, 2021 00:15March 4, 2021 02:452d 2h3,23935K
10May 11, 2021 10:15May 11, 2021 13:303h 15m2,9481,490

Outage episodes by size in 2021: 73 reached 100+ customers, 29 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 Washington County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
The Narragansett Electric Co20217.5 hrs1.4369 min0.95
Block Island Utility District-----

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 Rhode Island's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 48,730 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. Washington County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Washington County, RI annual power outage report, 2021, 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/2021/rhode-island/washington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON