County annual report · FIPS 25019
2024 Nantucket County, MA Power Outage Report
In 2024, customers in Nantucket County, MA went without power for an average of 38.6 hours, a total of 26K customer-hours (Massachusetts average 1.9 hours). That ranks 1st worst of 14 Massachusetts counties and 250th of 2,990 nationally.
Compared with MA, the US and 2023
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Nantucket County, 2024
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 7, 2024 13:45 | October 7, 2024 21:45 | 8h | 1,607 | 4,232 |
| 2 | September 9, 2024 17:00 | September 9, 2024 22:30 | 5h 30m | 1,606 | 6,203 |
| 3 | June 27, 2024 08:00 | June 27, 2024 16:00 | 8h | 1,223 | 2,731 |
| 4 | August 8, 2024 13:15 | August 8, 2024 16:45 | 3h 30m | 1,159 | 3,464 |
| 5 | September 18, 2024 13:00 | September 18, 2024 23:00 | 10h | 581 | 3,644 |
| 6 | April 5, 2024 17:45 | April 5, 2024 18:30 | 45m | 403 | 224 |
| 7 | August 16, 2024 22:30 | August 17, 2024 00:45 | 2h 15m | 205 | 461 |
| 8 | August 8, 2024 17:30 | August 8, 2024 21:30 | 4h | 144 | 573 |
| 9 | May 29, 2024 22:30 | May 30, 2024 00:45 | 2h 15m | 141 | 42 |
| 10 | November 16, 2024 02:15 | November 16, 2024 03:45 | 1h 30m | 138 | 207 |
Outage episodes by size in 2024: 12 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 Nantucket County reported on EIA Form 861 for 2024, 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 | 2024 | 2.2 hrs | 1.00 | 1.5 hrs | 0.84 |
| Nantucket Electric Co | 2024 | 2.3 hrs | 0.72 | 50 min | 0.33 |
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 2024; 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, 2024, 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/2024/massachusetts/nantucket-county