County annual report · FIPS 25023
2015 Plymouth County, MA Power Outage Report
In 2015, customers in Plymouth County, MA went without power for an average of 1.0 hours, a total of 270K customer-hours (Massachusetts average 1.5 hours). That ranks 10th worst of 14 Massachusetts counties and 1793rd of 2,484 nationally.
Compared with MA, the US
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Plymouth County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 22, 2015 11:15 | September 23, 2015 01:15 | 14h | 13,728 | 28K |
| 2 | August 4, 2015 07:45 | August 4, 2015 17:45 | 10h | 9,202 | 31K |
| 3 | September 28, 2015 19:15 | September 29, 2015 04:15 | 9h | 7,323 | 2,941 |
| 4 | September 23, 2015 13:15 | September 23, 2015 18:45 | 5h 30m | 5,100 | 1,316 |
| 5 | December 25, 2015 10:45 | December 25, 2015 22:15 | 11h 30m | 5,034 | 6,677 |
| 6 | June 28, 2015 04:15 | June 29, 2015 02:45 | 22h 30m | 4,393 | 7,304 |
| 7 | November 20, 2015 05:30 | November 20, 2015 13:30 | 8h | 3,823 | 4,964 |
| 8 | December 24, 2015 10:45 | December 24, 2015 19:45 | 9h | 3,797 | 4,133 |
| 9 | December 30, 2015 13:45 | December 30, 2015 21:45 | 8h | 3,237 | 1,206 |
| 10 | June 8, 2015 20:30 | June 9, 2015 02:00 | 5h 30m | 3,028 | 3,489 |
Outage episodes by size in 2015: 155 reached 100+ customers, 40 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 Plymouth County reported on EIA Form 861 for 2015, 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 | 2015 | 1.6 hrs | 0.83 | 75 min | 0.76 |
| 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 n/a of Massachusetts's customers in 2015; 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, 2015, 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/2015/massachusetts/plymouth-county