County annual report · FIPS 25005
2022 Bristol County, MA Power Outage Report
In 2022, customers in Bristol County, MA went without power for an average of 1.5 hours, a total of 437K customer-hours (Massachusetts average 3.3 hours). That ranks 12th worst of 14 Massachusetts counties and 2486th of 2,976 nationally.
Compared with MA, the US and 2021
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Bristol County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 29, 2022 11:30 | January 31, 2022 22:30 | 2d 11h | 43,126 | 147K |
| 2 | December 23, 2022 07:45 | December 25, 2022 06:15 | 1d 22h | 7,200 | 36K |
| 3 | September 6, 2022 11:45 | September 6, 2022 18:00 | 6h 15m | 6,296 | 2,377 |
| 4 | October 9, 2022 05:30 | October 9, 2022 07:15 | 1h 45m | 5,812 | 7,006 |
| 5 | March 28, 2022 04:45 | March 28, 2022 17:45 | 13h | 5,759 | 20K |
| 6 | April 10, 2022 15:30 | April 10, 2022 18:00 | 2h 30m | 5,312 | 3,328 |
| 7 | September 29, 2022 01:00 | September 29, 2022 16:00 | 15h | 4,602 | 16K |
| 8 | September 29, 2022 18:15 | September 30, 2022 03:30 | 9h 15m | 4,169 | 5,775 |
| 9 | August 20, 2022 10:30 | August 20, 2022 18:45 | 8h 15m | 3,786 | 3,213 |
| 10 | February 18, 2022 08:30 | February 19, 2022 03:45 | 19h 15m | 3,673 | 14K |
Outage episodes by size in 2022: 163 reached 100+ customers, 47 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 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Massachusetts Electric Co | 2022 | 2.4 hrs | 1.16 | 1.8 hrs | 1.05 |
| NSTAR Electric Company | 2022 | 3.3 hrs | 1.03 | 69 min | 0.75 |
| City of Taunton | 2022 | 1.7 hrs | 2.66 | 1.7 hrs | 2.66 |
| Town of Mansfield - (MA) | 2022 | 34 min | 0.39 | 5 min | 0.06 |
| Town of North Attleborough - (MA) | 2022 | 17 min | 0.39 | 17 min | 0.39 |
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 ÷ 284,254 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, 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/bristol-county