County annual report · FIPS 25007
2023 Dukes County, MA Power Outage Report
In 2023, customers in Dukes County, MA went without power for an average of 2.0 hours, a total of 43K customer-hours (Massachusetts average 5.1 hours). That ranks 13th worst of 14 Massachusetts counties and 2273rd of 2,977 nationally.
Compared with MA, the US and 2022
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Dukes County, 2023
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 15, 2023 10:45 | February 15, 2023 12:45 | 2h | 9,667 | 17K |
| 2 | December 4, 2023 18:15 | December 4, 2023 18:45 | 30m | 4,620 | 2,309 |
| 3 | April 30, 2023 20:15 | April 30, 2023 21:45 | 1h 30m | 4,095 | 3,072 |
| 4 | November 22, 2023 11:15 | November 22, 2023 16:15 | 5h | 2,222 | 1,740 |
| 5 | February 3, 2023 18:30 | February 4, 2023 10:30 | 16h | 879 | 3,701 |
| 6 | April 30, 2023 09:00 | April 30, 2023 10:45 | 1h 45m | 779 | 1,363 |
| 7 | May 1, 2023 03:15 | May 1, 2023 05:30 | 2h 15m | 568 | 994 |
| 8 | July 27, 2023 22:30 | July 27, 2023 23:30 | 1h | 481 | 481 |
| 9 | August 18, 2023 15:45 | August 18, 2023 19:30 | 3h 45m | 451 | 793 |
| 10 | April 13, 2023 15:15 | April 16, 2023 09:00 | 2d 17h | 277 | 6,034 |
Outage episodes by size in 2023: 14 reached 100+ customers, 4 reached 1,000+ customers, 0 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 2023, 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 | 2023 | 3.2 hrs | 0.88 | 76 min | 0.67 |
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 2023; 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, 2023, 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/2023/massachusetts/dukes-county