County annual report · FIPS 36103
2017 Suffolk County, NY Power Outage Report
In 2017, customers in Suffolk County, NY went without power for an average of 2.7 hours, a total of 1.8M customer-hours (New York average 3.9 hours). That ranks 50th worst of 62 New York counties and 1407th of 2,786 nationally.
Compared with NY, the US and 2016
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Suffolk 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 2, 2017 10:15 | November 5, 2017 04:00 | 33d 17h | 33,891 | 764K |
| 2 | February 9, 2017 11:15 | February 11, 2017 06:45 | 1d 19h | 23,108 | 49K |
| 3 | June 19, 2017 08:30 | June 27, 2017 07:45 | 7d 23h | 9,711 | 61K |
| 4 | May 16, 2017 10:45 | May 17, 2017 10:15 | 23h 30m | 8,914 | 13K |
| 5 | February 24, 2017 10:45 | February 28, 2017 05:30 | 3d 18h | 8,210 | 15K |
| 6 | April 2, 2017 11:00 | April 13, 2017 05:00 | 10d 18h | 7,207 | 51K |
| 7 | June 2, 2017 11:15 | June 17, 2017 05:30 | 14d 18h | 5,544 | 62K |
| 8 | November 5, 2017 05:00 | December 31, 2017 00:15 | 55d 19h | 5,432 | 161K |
| 9 | July 7, 2017 11:30 | August 14, 2017 14:00 | 38d 2h | 5,241 | 101K |
| 10 | January 10, 2017 13:30 | January 13, 2017 05:15 | 2d 15h | 4,984 | 7,860 |
Outage episodes by size in 2017: 111 reached 100+ customers, 64 reached 1,000+ customers, 2 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 Suffolk 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 |
|---|---|---|---|---|---|
| Long Island Power Authority | - | - | - | - | - |
| Fishers Island Utility Co Inc | - | - | - | - | - |
| Village of Greenport - (NY) | - | - | - | - | - |
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 New York's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 657,677 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. Suffolk County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Suffolk County, NY 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/). https://massoutage.com/reports/2017/new-york/suffolk-county