County annual report · FIPS 36109
2025 Tompkins County, NY Power Outage Report
In 2025, customers in Tompkins County, NY went without power for an average of 3.6 hours, a total of 231K customer-hours (New York average 2.4 hours). That ranks 39th worst of 62 New York counties and 1867th 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 Tompkins 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 18:00 | March 19, 2025 02:15 | 2d 8h | 8,938 | 91K |
| 2 | April 5, 2025 14:00 | April 5, 2025 15:45 | 1h 45m | 4,436 | 7,763 |
| 3 | July 3, 2025 17:30 | July 6, 2025 01:15 | 2d 7h | 3,799 | 49K |
| 4 | March 4, 2025 14:00 | March 4, 2025 14:45 | 45m | 3,435 | 1,664 |
| 5 | October 15, 2025 12:15 | October 15, 2025 18:30 | 6h 15m | 2,829 | 5,453 |
| 6 | November 5, 2025 22:45 | November 6, 2025 07:30 | 8h 45m | 2,156 | 1,753 |
| 7 | August 11, 2025 00:00 | August 11, 2025 02:00 | 2h | 2,043 | 985 |
| 8 | July 13, 2025 18:45 | July 14, 2025 09:15 | 14h 30m | 1,774 | 2,598 |
| 9 | April 29, 2025 23:15 | April 30, 2025 15:15 | 16h | 1,390 | 3,173 |
| 10 | June 19, 2025 14:00 | June 19, 2025 21:00 | 7h | 1,288 | 1,663 |
Outage episodes by size in 2025: 69 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 Tompkins 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 |
| AVANGRID | - | - | - | - | - |
| Village of Groton - (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 ÷ 63,720 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. Tompkins County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tompkins 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/tompkins-county