County annual report · FIPS 36103
2019 Suffolk County, NY Power Outage Report
In 2019, customers in Suffolk County, NY went without power for an average of 4.3 hours, a total of 2.8M customer-hours (New York average 3.0 hours). That ranks 34th worst of 62 New York counties and 1252nd of 2,945 nationally.
Compared with NY, the US and 2018
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Suffolk County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 8, 2019 03:15 | July 27, 2019 18:15 | 19d 15h | 77,275 | 379K |
| 2 | June 25, 2019 11:45 | July 8, 2019 02:15 | 12d 14h | 55,387 | 989K |
| 3 | August 21, 2019 13:00 | September 11, 2019 06:45 | 20d 17h | 40,156 | 657K |
| 4 | October 16, 2019 11:30 | October 25, 2019 09:00 | 8d 21h | 14,371 | 243K |
| 5 | October 31, 2019 10:45 | November 6, 2019 09:30 | 5d 22h | 10,811 | 120K |
| 6 | January 23, 2019 13:45 | January 29, 2019 04:30 | 5d 14h | 4,628 | 25K |
| 7 | April 19, 2019 10:45 | April 21, 2019 07:45 | 1d 21h | 3,192 | 12K |
| 8 | August 6, 2019 10:45 | August 12, 2019 10:15 | 5d 23h | 3,143 | 17K |
| 9 | June 14, 2019 13:00 | June 15, 2019 06:00 | 17h | 2,942 | 1,759 |
| 10 | December 6, 2019 13:30 | December 7, 2019 05:15 | 15h 45m | 2,896 | 1,913 |
Outage episodes by size in 2019: 172 reached 100+ customers, 45 reached 1,000+ customers, 5 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 2019, 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 98% of New York's customers in 2019; 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, 2019, 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/2019/new-york/suffolk-county