County annual report · FIPS 36063
2025 Niagara County, NY Power Outage Report
In 2025, customers in Niagara County, NY went without power for an average of 2.1 hours, a total of 218K customer-hours (New York average 2.4 hours). That ranks 51st worst of 62 New York counties and 2402nd 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 Niagara 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 | December 29, 2025 10:00 | January 1, 2026 00:00 | 2d 14h | 6,216 | 79K |
| 2 | November 16, 2025 11:15 | November 17, 2025 04:45 | 17h 30m | 5,585 | 3,830 |
| 3 | September 22, 2025 02:30 | September 22, 2025 10:15 | 7h 45m | 3,693 | 939 |
| 4 | September 5, 2025 05:15 | September 5, 2025 23:45 | 18h 30m | 3,510 | 4,138 |
| 5 | January 27, 2025 17:15 | January 28, 2025 21:30 | 1d 4h | 3,464 | 16K |
| 6 | July 10, 2025 21:15 | July 11, 2025 03:00 | 5h 45m | 2,724 | 1,474 |
| 7 | February 7, 2025 07:00 | February 8, 2025 03:15 | 20h 15m | 2,721 | 3,256 |
| 8 | July 4, 2025 21:15 | July 5, 2025 07:15 | 10h | 2,309 | 2,272 |
| 9 | October 15, 2025 11:30 | October 15, 2025 22:30 | 11h | 2,127 | 1,123 |
| 10 | February 17, 2025 02:30 | February 17, 2025 06:45 | 4h 15m | 1,799 | 3,819 |
Outage episodes by size in 2025: 92 reached 100+ customers, 16 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 Niagara 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 | - | - | - | - | - |
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 ÷ 106,178 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. Niagara County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Niagara 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/niagara-county