County annual report · FIPS 36023
2025 Cortland County, NY Power Outage Report
In 2025, customers in Cortland County, NY went without power for an average of 3.5 hours, a total of 83K customer-hours (New York average 2.4 hours). That ranks 40th worst of 62 New York counties and 1912th 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 Cortland 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 16:00 | March 18, 2025 00:30 | 1d 8h | 6,507 | 35K |
| 2 | January 1, 2025 21:15 | January 2, 2025 07:30 | 10h 15m | 2,836 | 1,951 |
| 3 | March 18, 2025 11:45 | March 19, 2025 07:15 | 19h 30m | 2,541 | 2,571 |
| 4 | July 7, 2025 16:45 | July 8, 2025 14:30 | 21h 45m | 1,255 | 5,701 |
| 5 | September 25, 2025 08:00 | September 26, 2025 01:30 | 17h 30m | 1,211 | 1,709 |
| 6 | July 30, 2025 15:15 | July 30, 2025 17:15 | 2h | 1,201 | 1,498 |
| 7 | July 6, 2025 03:30 | July 6, 2025 05:30 | 2h | 1,181 | 300 |
| 8 | July 2, 2025 18:15 | July 2, 2025 18:45 | 30m | 1,178 | 589 |
| 9 | November 10, 2025 14:45 | November 10, 2025 19:45 | 5h | 1,172 | 1,232 |
| 10 | June 27, 2025 03:30 | June 27, 2025 06:45 | 3h 15m | 1,080 | 835 |
Outage episodes by size in 2025: 35 reached 100+ customers, 12 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 Cortland 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 Marathon - (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 ÷ 23,943 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. Cortland County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cortland 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/cortland-county