County annual report · FIPS 25023
2019 Plymouth County, MA Power Outage Report
In 2019, customers in Plymouth County, MA went without power for an average of 5.4 hours, a total of 1.5M customer-hours (Massachusetts average 3.0 hours). That ranks 5th worst of 14 Massachusetts counties and 1018th of 2,945 nationally.
Compared with MA, the US and 2018
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Plymouth County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 17, 2019 03:15 | October 20, 2019 22:15 | 3d 19h | 60,602 | 1.1M |
| 2 | October 31, 2019 14:30 | November 3, 2019 01:00 | 2d 10h | 13,146 | 116K |
| 3 | January 24, 2019 12:30 | January 27, 2019 00:00 | 2d 11h | 11,672 | 80K |
| 4 | December 23, 2019 20:15 | December 23, 2019 22:45 | 2h 30m | 7,783 | 4,502 |
| 5 | December 17, 2019 07:45 | December 17, 2019 09:00 | 1h 15m | 7,772 | 6,779 |
| 6 | December 16, 2019 02:00 | December 16, 2019 09:30 | 7h 30m | 5,470 | 5,212 |
| 7 | November 10, 2019 22:30 | November 11, 2019 02:45 | 4h 15m | 4,069 | 6,900 |
| 8 | February 25, 2019 14:30 | February 28, 2019 00:15 | 2d 9h | 3,965 | 42K |
| 9 | April 21, 2019 22:15 | April 21, 2019 23:00 | 45m | 3,056 | 1,782 |
| 10 | March 6, 2019 02:00 | March 6, 2019 02:15 | 15m | 3,032 | 758 |
Outage episodes by size in 2019: 142 reached 100+ customers, 36 reached 1,000+ customers, 3 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 2019, 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 | 2014 | 2.4 hrs | 1.12 | 1.6 hrs | 0.96 |
| NSTAR Electric Company | 2018 | 16.2 hrs | 1.68 | 85 min | 0.83 |
| 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 89% of Massachusetts's customers in 2019; 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, 2019, 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/2019/massachusetts/plymouth-county