County annual report · FIPS 25023
2022 Plymouth County, MA Power Outage Report
In 2022, customers in Plymouth County, MA went without power for an average of 3.0 hours, a total of 838K customer-hours (Massachusetts average 3.3 hours). That ranks 7th worst of 14 Massachusetts counties and 1958th 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 Plymouth 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 06:45 | February 1, 2022 06:30 | 2d 23h | 26,447 | 279K |
| 2 | December 23, 2022 04:00 | December 26, 2022 02:15 | 2d 22h | 14,428 | 164K |
| 3 | February 18, 2022 02:00 | February 19, 2022 05:45 | 1d 3h | 10,928 | 65K |
| 4 | November 2, 2022 09:00 | November 2, 2022 20:15 | 11h 15m | 10,169 | 11K |
| 5 | October 4, 2022 17:00 | October 7, 2022 08:15 | 2d 15h | 5,914 | 15K |
| 6 | January 19, 2022 04:30 | January 19, 2022 10:15 | 5h 45m | 4,662 | 1,309 |
| 7 | August 26, 2022 15:30 | August 28, 2022 02:00 | 1d 10h | 4,390 | 10K |
| 8 | May 26, 2022 15:30 | June 2, 2022 21:45 | 7d 6h | 4,245 | 26K |
| 9 | April 20, 2022 11:00 | April 20, 2022 23:15 | 12h 15m | 4,237 | 2,278 |
| 10 | August 23, 2022 09:15 | August 25, 2022 04:45 | 1d 19h | 4,067 | 4,859 |
Outage episodes by size in 2022: 193 reached 100+ customers, 66 reached 1,000+ customers, 4 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 Plymouth 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 Hingham - (MA) | - | - | - | - | - |
| Hull Municipal Light Plant | - | - | - | - | - |
| Town of Middleborough - (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 ÷ 281,672 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. Plymouth County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Plymouth 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/plymouth-county