County annual report · FIPS 36067
2025 Onondaga County, NY Power Outage Report
In 2025, customers in Onondaga County, NY went without power for an average of 4.1 hours, a total of 546K customer-hours (New York average 2.4 hours). That ranks 35th worst of 62 New York counties and 1755th of 3,000 nationally.
Compared with NY, the US and 2024
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Onondaga County, 2025
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 16, 2025 07:15 | March 18, 2025 03:00 | 1d 19h | 14,895 | 83K |
| 2 | December 19, 2025 08:15 | December 20, 2025 23:30 | 1d 15h | 9,216 | 22K |
| 3 | April 29, 2025 16:45 | May 1, 2025 01:00 | 1d 8h | 8,191 | 19K |
| 4 | March 5, 2025 16:45 | March 6, 2025 08:45 | 16h | 6,375 | 15K |
| 5 | May 17, 2025 18:45 | May 19, 2025 07:00 | 1d 12h | 6,369 | 17K |
| 6 | June 24, 2025 11:30 | June 25, 2025 22:30 | 1d 11h | 6,255 | 28K |
| 7 | July 17, 2025 10:00 | July 20, 2025 01:15 | 2d 15h | 6,057 | 3,809 |
| 8 | January 29, 2025 13:45 | January 30, 2025 13:30 | 23h 45m | 5,360 | 14K |
| 9 | April 17, 2025 14:30 | April 17, 2025 16:15 | 1h 45m | 4,938 | 3,103 |
| 10 | July 6, 2025 04:30 | July 9, 2025 05:00 | 3d | 4,906 | 23K |
Outage episodes by size in 2025: 162 reached 100+ customers, 54 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 Onondaga County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| New York State Elec & Gas Corp | 2016 | 4.5 hrs | 1.56 | 3.6 hrs | 1.47 |
| Niagara Mohawk Power Corp. | 2024 | 8.5 hrs | 1.69 | 2.3 hrs | 1.05 |
| AVANGRID | - | - | - | - | - |
| Village of Skaneateles - (NY) | - | - | - | - | - |
| Village of Solvay - (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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 134,654 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. Onondaga County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Onondaga County, NY annual power outage report, 2025, 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/2025/new-york/onondaga-county