County annual report · FIPS 36067
2021 Onondaga County, NY Power Outage Report
In 2021, customers in Onondaga County, NY went without power for an average of 3.4 hours, a total of 455K customer-hours (New York average 2.7 hours). That ranks 43rd worst of 62 New York counties and 1712th of 2,974 nationally.
Compared with NY, the US and 2020
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Onondaga County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 6, 2021 18:00 | April 6, 2021 18:30 | 30m | 12,877 | 4,076 |
| 2 | September 22, 2021 10:15 | September 23, 2021 00:30 | 14h 15m | 11,560 | 13K |
| 3 | September 23, 2021 01:15 | September 24, 2021 02:30 | 1d 1h | 10,955 | 12K |
| 4 | September 19, 2021 23:00 | September 20, 2021 06:15 | 7h 15m | 6,809 | 3,455 |
| 5 | June 21, 2021 09:00 | June 22, 2021 19:15 | 1d 10h | 6,496 | 24K |
| 6 | December 5, 2021 16:45 | December 7, 2021 03:30 | 1d 10h | 6,416 | 41K |
| 7 | December 11, 2021 23:15 | December 13, 2021 05:15 | 1d 6h | 6,056 | 26K |
| 8 | August 17, 2021 21:30 | August 22, 2021 05:15 | 4d 7h | 4,734 | 24K |
| 9 | May 26, 2021 17:15 | May 27, 2021 18:15 | 1d 1h | 4,635 | 17K |
| 10 | March 22, 2021 17:15 | March 22, 2021 17:30 | 15m | 4,408 | 1,102 |
Outage episodes by size in 2021: 183 reached 100+ customers, 70 reached 1,000+ customers, 3 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 2021, 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. | 2021 | 3.7 hrs | 1.32 | 2.2 hrs | 1.12 |
| 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 99% of New York's customers in 2021; 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, 2021, 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/2021/new-york/onondaga-county