County annual report · FIPS 36099
2021 Seneca County, NY Power Outage Report
In 2021, customers in Seneca County, NY went without power for an average of 6.1 hours, a total of 107K customer-hours (New York average 2.7 hours). That ranks 21st worst of 62 New York counties and 1132nd 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 Seneca 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 | October 26, 2021 20:45 | October 27, 2021 08:45 | 12h | 2,072 | 4,929 |
| 2 | April 30, 2021 21:30 | May 1, 2021 01:00 | 3h 30m | 1,830 | 2,760 |
| 3 | November 18, 2021 20:15 | November 18, 2021 21:45 | 1h 30m | 1,571 | 557 |
| 4 | June 29, 2021 20:30 | June 30, 2021 22:45 | 1d 2h | 1,568 | 5,187 |
| 5 | May 26, 2021 17:00 | May 26, 2021 20:45 | 3h 45m | 1,548 | 1,259 |
| 6 | July 26, 2021 14:00 | July 26, 2021 19:15 | 5h 15m | 1,548 | 1,173 |
| 7 | March 12, 2021 00:15 | March 12, 2021 07:45 | 7h 30m | 1,486 | 6,451 |
| 8 | May 25, 2021 23:30 | May 26, 2021 00:30 | 1h | 1,485 | 1,485 |
| 9 | December 12, 2021 00:15 | December 13, 2021 19:45 | 1d 19h | 1,414 | 28K |
| 10 | August 19, 2021 04:00 | August 20, 2021 00:15 | 20h 15m | 1,380 | 6,460 |
Outage episodes by size in 2021: 34 reached 100+ customers, 11 reached 1,000+ customers, 0 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 Seneca 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 |
| AVANGRID | - | - | - | - | - |
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 ÷ 17,541 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. Seneca County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Seneca 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/seneca-county