County annual report · FIPS 25007
2019 Dukes County, MA Power Outage Report
In 2019, customers in Dukes County, MA went without power for an average of 3.1 hours, a total of 64K customer-hours (Massachusetts average 3.0 hours). That ranks 8th worst of 14 Massachusetts counties and 1613th 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 Dukes 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 04:45 | October 20, 2019 00:30 | 2d 19h | 10,264 | 59K |
| 2 | March 29, 2019 17:00 | March 29, 2019 17:15 | 15m | 1,459 | 365 |
| 3 | January 24, 2019 22:00 | January 25, 2019 06:30 | 8h 30m | 1,244 | 1,316 |
| 4 | February 25, 2019 16:45 | February 25, 2019 19:30 | 2h 45m | 666 | 169 |
| 5 | October 27, 2019 19:15 | October 28, 2019 00:15 | 5h | 591 | 1,225 |
| 6 | October 10, 2019 11:15 | October 10, 2019 21:45 | 10h 30m | 494 | 401 |
| 7 | February 25, 2019 20:45 | February 26, 2019 05:45 | 9h | 355 | 574 |
| 8 | February 20, 2019 15:00 | February 20, 2019 17:30 | 2h 30m | 153 | 383 |
| 9 | March 14, 2019 13:45 | March 14, 2019 15:15 | 1h 30m | 40 | 53 |
| 10 | January 29, 2019 19:15 | January 29, 2019 22:30 | 3h 15m | 21 | 28 |
Outage episodes by size in 2019: 8 reached 100+ customers, 3 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 Dukes 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 |
|---|---|---|---|---|---|
| NSTAR Electric Company | 2018 | 16.2 hrs | 1.68 | 85 min | 0.83 |
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 ÷ 20,864 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. Dukes County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dukes 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/dukes-county