County annual report · FIPS 25007
2015 Dukes County, MA Power Outage Report
In 2015, customers in Dukes County, MA went without power for an average of 1.7 hours, a total of 35K customer-hours (Massachusetts average 1.5 hours). That ranks 7th worst of 14 Massachusetts counties and 1373rd 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 Dukes 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 | August 11, 2015 15:00 | August 12, 2015 04:30 | 13h 30m | 12,988 | 4,433 |
| 2 | June 28, 2015 09:00 | June 28, 2015 15:45 | 6h 45m | 7,886 | 14K |
| 3 | September 30, 2015 11:15 | September 30, 2015 18:15 | 7h | 6,774 | 5,536 |
| 4 | January 9, 2015 14:15 | January 9, 2015 18:15 | 4h | 2,987 | 1,116 |
| 5 | October 29, 2015 11:00 | October 29, 2015 14:30 | 3h 30m | 1,618 | 1,465 |
| 6 | November 14, 2015 02:45 | November 14, 2015 04:30 | 1h 45m | 1,458 | 2,188 |
| 7 | July 28, 2015 12:00 | July 28, 2015 16:30 | 4h 30m | 1,306 | 1,699 |
| 8 | November 14, 2015 08:30 | November 14, 2015 08:45 | 15m | 331 | 83 |
| 9 | November 11, 2015 15:00 | November 12, 2015 00:15 | 9h 15m | 306 | 378 |
| 10 | October 29, 2015 00:00 | October 29, 2015 03:30 | 3h 30m | 268 | 213 |
Outage episodes by size in 2015: 15 reached 100+ customers, 7 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 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 |
|---|---|---|---|---|---|
| NSTAR Electric Company | 2015 | 1.6 hrs | 0.83 | 75 min | 0.76 |
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 ÷ 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, 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/dukes-county