County annual report · FIPS 36059
2022 Nassau County, NY Power Outage Report
In 2022, customers in Nassau County, NY went without power for an average of 1.3 hours, a total of 571K customer-hours (New York average 3.7 hours). That ranks 55th worst of 62 New York counties and 2573rd of 2,976 nationally.
Compared with NY, the US and 2021
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Nassau County, 2022
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 20, 2022 11:15 | July 24, 2022 06:45 | 3d 19h | 11,064 | 54K |
| 2 | December 22, 2022 13:30 | December 25, 2022 06:45 | 2d 17h | 6,376 | 43K |
| 3 | May 31, 2022 08:00 | June 4, 2022 02:45 | 3d 18h | 5,537 | 9,575 |
| 4 | December 8, 2022 11:30 | December 9, 2022 03:45 | 16h 15m | 4,715 | 5,098 |
| 5 | January 16, 2022 12:45 | January 19, 2022 06:00 | 2d 17h | 3,981 | 18K |
| 6 | May 26, 2022 11:30 | May 27, 2022 04:45 | 17h 15m | 3,088 | 2,472 |
| 7 | August 21, 2022 12:00 | August 24, 2022 02:15 | 2d 14h | 3,061 | 5,214 |
| 8 | July 25, 2022 10:30 | July 27, 2022 03:15 | 1d 16h | 2,969 | 15K |
| 9 | July 8, 2022 12:30 | July 9, 2022 00:45 | 12h 15m | 2,775 | 2,196 |
| 10 | March 31, 2022 12:30 | April 2, 2022 10:00 | 1d 21h | 2,621 | 6,699 |
Outage episodes by size in 2022: 252 reached 100+ customers, 57 reached 1,000+ customers, 1 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 Nassau County reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| Village of Freeport - (NY) | 2022 | 14 min | 0.19 | 7 min | 0.15 |
| Long Island Power Authority | - | - | - | - | - |
| Village of Rockville Centre - (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 99% of New York's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 427,483 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. Nassau County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Nassau County, NY annual power outage report, 2022, 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/2022/new-york/nassau-county