County annual report · FIPS 36037
2021 Genesee County, NY Power Outage Report
In 2021, customers in Genesee County, NY went without power for an average of 8.8 hours, a total of 257K customer-hours (New York average 2.7 hours). That ranks 14th worst of 62 New York counties and 869th 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 Genesee 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 | December 11, 2021 20:00 | December 15, 2021 03:00 | 3d 7h | 8,177 | 210K |
| 2 | June 30, 2021 15:00 | June 30, 2021 22:30 | 7h 30m | 4,591 | 8,226 |
| 3 | March 26, 2021 16:30 | March 27, 2021 04:00 | 11h 30m | 3,720 | 14K |
| 4 | December 6, 2021 20:45 | December 7, 2021 04:30 | 7h 45m | 2,213 | 3,045 |
| 5 | October 29, 2021 17:30 | October 29, 2021 21:00 | 3h 30m | 815 | 978 |
| 6 | December 22, 2021 19:00 | December 22, 2021 21:00 | 2h | 740 | 925 |
| 7 | May 1, 2021 01:00 | May 1, 2021 05:15 | 4h 15m | 589 | 1,616 |
| 8 | July 17, 2021 04:30 | July 17, 2021 05:45 | 1h 15m | 501 | 626 |
| 9 | December 22, 2021 07:15 | December 22, 2021 12:00 | 4h 45m | 426 | 2,023 |
| 10 | September 30, 2021 15:45 | September 30, 2021 18:00 | 2h 15m | 304 | 78 |
Outage episodes by size in 2021: 34 reached 100+ customers, 4 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 Genesee 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 |
|---|---|---|---|---|---|
| Niagara Mohawk Power Corp. | 2021 | 3.7 hrs | 1.32 | 2.2 hrs | 1.12 |
| Rochester Gas & Electric Corp | - | - | - | - | - |
| Village of Bergen - (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 ÷ 29,240 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. Genesee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Genesee 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/genesee-county