County annual report · FIPS 25019
2017 Nantucket County, MA Power Outage Report
In 2017, customers in Nantucket County, MA went without power for an average of 30.2 hours, a total of 21K customer-hours (Massachusetts average 4.7 hours). That ranks 1st worst of 14 Massachusetts counties and 172nd of 2,786 nationally.
Compared with MA, the US and 2016
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Nantucket County, 2017
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 30, 2017 07:15 | October 30, 2017 10:15 | 3h | 1,963 | 5,889 |
| 2 | February 9, 2017 20:45 | February 10, 2017 05:30 | 8h 45m | 1,467 | 6,667 |
| 3 | May 18, 2017 19:45 | May 18, 2017 22:00 | 2h 15m | 1,414 | 362 |
| 4 | April 10, 2017 16:00 | April 10, 2017 18:00 | 2h | 775 | 781 |
| 5 | October 17, 2017 13:15 | October 17, 2017 17:30 | 4h 15m | 657 | 2,029 |
| 6 | October 17, 2017 06:15 | October 17, 2017 08:15 | 2h | 239 | 162 |
| 7 | January 8, 2017 09:15 | January 8, 2017 10:45 | 1h 30m | 159 | 82 |
| 8 | November 20, 2017 14:00 | November 20, 2017 14:30 | 30m | 152 | 76 |
| 9 | February 10, 2017 12:45 | February 10, 2017 15:00 | 2h 15m | 119 | 91 |
| 10 | January 8, 2017 11:30 | January 8, 2017 15:15 | 3h 45m | 118 | 298 |
Outage episodes by size in 2017: 14 reached 100+ customers, 3 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 Nantucket County reported on EIA Form 861 for 2017, 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 |
| Nantucket Electric Co | 2014 | 2.8 hrs | 1.50 | 63 min | 0.73 |
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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 680 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. Nantucket County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Nantucket County, MA annual power outage report, 2017, 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/2017/massachusetts/nantucket-county