massoutage

County annual report · FIPS 36099

2025 Seneca County, NY Power Outage Report

In 2025, customers in Seneca County, NY went without power for an average of 6.1 hours, a total of 107K customer-hours (New York average 2.4 hours). That ranks 21st worst of 62 New York counties and 1273rd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
6.1
17,541 customers
Customer-hours out
107K
Peak customers out
4,519
Outages ≥1,000 out
13
0 of 10,000+ · 242 total
Longest outage
2d 9h
began March 16, 2025
Rank in state
21st/62
1273rd of 3,000 US

Compared with NY, the US and 2024

Seneca County, NY average hours without power per customer compared with state and national averages, 2025Seneca County 6.1 hours, New York average 2.4 hours, US average 5.9 hours, Seneca County, 2024 12.2 hoursSeneca CountySeneca County6.1hNew York averageNew York average2.4hUS averageUS average5.9hSeneca County, 2024Seneca County, 202412.2h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Seneca County, NY customer-hours without power by month, 2025Jan 2,089, Feb 1,020, Mar 14K, Apr 34K, May 3,552, Jun 5,327, Jul 10K, Aug 15K, Sep 5,196, Oct 4,648, Nov 5,846, Dec 6,920010k20k30k40k2,089Jan1,020Feb14KMar34KApr3,552May5,327Jun10KJul15KAug5,196Sep4,648Oct5,846Nov6,920Dec
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Customer-hours; April was the worst month.

Seneca County year over year

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Seneca County, NY: average hours without power per customer by year2015: 2.8h; 2016: 1.8h; 2017: 5.8h; 2018: 5.5h, coverage 98%; 2019: 3.6h, coverage 98%; 2020: 2.6h, coverage 99%; 2021: 6.1h, coverage 99%; 2022: 3.5h, coverage 99%; 2023: 3.3h; 2024: 12.2h; 2025: 6.1h0510150%50%100%2.8h20151.8h20165.8h20175.5h20183.6h20192.6h20206.1h20213.5h20223.3h202312.2h20246.1h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of New York customers tracked each year.

Biggest outages in Seneca County, 2025

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 22, 2025 00:45March 22, 2025 01:0015m4,5191,130
2August 27, 2025 13:45August 27, 2025 17:454h3,31413K
3April 29, 2025 21:15May 1, 2025 02:451d 5h2,47023K
4April 8, 2025 09:00April 8, 2025 17:008h2,4686,426
5March 16, 2025 14:30March 19, 2025 00:152d 9h2,05812K
6September 14, 2025 12:15September 14, 2025 20:007h 45m1,7693,694
7April 3, 2025 13:15April 3, 2025 14:151h1,6101,533
8December 11, 2025 00:45December 11, 2025 07:006h 15m1,6072,964
9July 8, 2025 00:30July 8, 2025 06:155h 45m1,5375,615
10June 18, 2025 15:45June 18, 2025 16:0015m1,483371

Outage episodes by size in 2025: 52 reached 100+ customers, 13 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 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
New York State Elec & Gas Corp20164.5 hrs1.563.6 hrs1.47
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 n/a of New York's customers in 2025; 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, 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/seneca-county

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