massoutage

County annual report · FIPS 44001

2021 Bristol County, RI Power Outage Report

In 2021, customers in Bristol County, RI went without power for an average of 5.6 hours, a total of 190K customer-hours (Rhode Island average 8.1 hours). That ranks 3rd worst of 5 Rhode Island counties and 1217th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
5.6
33,839 customers
Customer-hours out
190K
Peak customers out
19,130
Outages ≥1,000 out
7
1 of 10,000+ · 222 total
Longest outage
2d 23h
began October 27, 2021
Rank in state
3rd/5
1217th of 2,974 US

Compared with RI, the US and 2020

Bristol County, RI average hours without power per customer compared with state and national averages, 2021Bristol County 5.6 hours, Rhode Island average 8.1 hours, US average 8.9 hours, Bristol County, 2020 7.3 hoursBristol CountyBristol County5.6hRhode Island averageRhode Island average8.1hUS averageUS average8.9hBristol County, 2020Bristol County, 20207.3h
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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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Bristol County, RI customer-hours without power by month, 2021Jan 44, Feb 215, Mar 2,291, Apr 147, May 12K, Jun 370, Jul 5,085, Aug 11K, Sep 3,974, Oct 154K, Nov 528, Dec 383050k100k150k200k44Jan215Feb2,291Mar147Apr12KMay370Jun5,085Jul11KAug3,974Sep154KOct528Nov383Dec
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Customer-hours; October was the worst month.

Bristol County year over year

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Bristol County, RI: average hours without power per customer by year2015: 4.0h; 2016: 1.6h; 2017: 15.5h; 2018: 18.1h, coverage 99%; 2019: 4.6h, coverage 99%; 2020: 7.3h, coverage 99%; 2021: 5.6h, coverage 99%; 2022: 1.2h, coverage 99%; 2023: 1.5h; 2024: 1.3h; 2025: 3.3h051015200%50%100%4.0h20151.6h201615.5h201718.1h20184.6h20197.3h20205.6h20211.2h20221.5h20231.3h20243.3h2025
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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 Bristol County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 27, 2021 01:30October 30, 2021 01:002d 23h19,130151K
2July 28, 2021 13:30July 28, 2021 14:301h4,7661,192
3May 18, 2021 09:45May 18, 2021 14:004h 15m3,7066,614
4August 22, 2021 10:00August 23, 2021 19:301d 9h3,48510K
5May 7, 2021 12:00May 7, 2021 16:004h3,4643,744
6September 2, 2021 07:15September 2, 2021 20:1513h2,1702,961
7July 17, 2021 18:30July 18, 2021 05:0010h 30m1,0553,373
8May 29, 2021 02:45May 29, 2021 04:151h 30m8741,310
9September 26, 2021 07:00September 26, 2021 08:001h409409
10October 31, 2021 06:00October 31, 2021 23:3017h 30m3862,485

Outage episodes by size in 2021: 19 reached 100+ customers, 7 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 Bristol 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

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 ÷ 33,839 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. Bristol County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Bristol 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/bristol-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON