County annual report · FIPS 25021
2016 Norfolk County, MA Power Outage Report
In 2016, customers in Norfolk County, MA went without power for an average of 3.1 hours, a total of 996K customer-hours (Massachusetts average 2.3 hours). That ranks 6th worst of 14 Massachusetts counties and 978th of 2,391 nationally.
Compared with MA, the US and 2015
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Norfolk County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 5, 2016 11:45 | February 10, 2016 08:30 | 4d 20h | 29,814 | 508K |
| 2 | April 3, 2016 11:15 | April 4, 2016 10:15 | 23h | 8,325 | 36K |
| 3 | April 24, 2016 04:00 | April 24, 2016 07:45 | 3h 45m | 5,046 | 2,707 |
| 4 | December 27, 2016 09:15 | December 28, 2016 04:00 | 18h 45m | 4,351 | 5,095 |
| 5 | April 21, 2016 11:00 | April 21, 2016 12:15 | 1h 15m | 3,983 | 1,098 |
| 6 | October 9, 2016 11:30 | October 10, 2016 15:30 | 1d 4h | 3,923 | 10K |
| 7 | July 22, 2016 10:45 | July 27, 2016 14:30 | 5d 3h | 3,711 | 23K |
| 8 | July 16, 2016 10:00 | July 16, 2016 15:45 | 5h 45m | 3,670 | 3,378 |
| 9 | March 30, 2016 15:30 | March 30, 2016 17:00 | 1h 30m | 3,602 | 3,092 |
| 10 | February 15, 2016 23:00 | February 18, 2016 10:15 | 2d 11h | 3,568 | 25K |
Outage episodes by size in 2016: 232 reached 100+ customers, 62 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 Norfolk County reported on EIA Form 861 for 2016, 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 | 2016 | 2.9 hrs | 1.08 | 1.6 hrs | 0.91 |
| Massachusetts Bay Trans Authority | - | - | - | - | - |
| City of Norwood - (MA) | - | - | - | - | - |
| Town of Braintree - (MA) | - | - | - | - | - |
| Town of Wellesley - (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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 326,357 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. Norfolk County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Norfolk County, MA annual power outage report, 2016, 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/2016/massachusetts/norfolk-county