County annual report · FIPS 36103
2018 Suffolk County, NY Power Outage Report
In 2018, customers in Suffolk County, NY went without power for an average of 2.2 hours, a total of 1.5M customer-hours (New York average 7.4 hours). That ranks 57th worst of 60 New York counties and 1753rd of 2,798 nationally.
Compared with NY, the US and 2017
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Suffolk County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 6, 2018 03:15 | March 25, 2018 09:30 | 19d 6h | 26,339 | 546K |
| 2 | March 1, 2018 12:30 | March 6, 2018 01:00 | 4d 12h | 12,601 | 115K |
| 3 | September 2, 2018 09:15 | September 9, 2018 04:45 | 6d 19h | 12,522 | 64K |
| 4 | August 24, 2018 10:30 | August 31, 2018 09:00 | 6d 22h | 10,916 | 29K |
| 5 | October 27, 2018 06:00 | October 29, 2018 04:15 | 1d 22h | 6,542 | 48K |
| 6 | August 7, 2018 10:30 | August 18, 2018 11:00 | 11d | 4,916 | 42K |
| 7 | November 15, 2018 12:30 | November 18, 2018 10:45 | 2d 22h | 4,820 | 58K |
| 8 | January 1, 2018 00:00 | January 9, 2018 10:45 | 8d 10h | 4,769 | 41K |
| 9 | September 9, 2018 07:15 | September 14, 2018 05:30 | 4d 22h | 4,638 | 20K |
| 10 | November 10, 2018 15:00 | November 12, 2018 03:15 | 1d 12h | 4,628 | 5,896 |
Outage episodes by size in 2018: 166 reached 100+ customers, 58 reached 1,000+ customers, 4 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 2018, 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 2018; 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, 2018, 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/2018/new-york/suffolk-county