massoutage

County annual report · FIPS 36011

2021 Cayuga County, NY Power Outage Report

In 2021, customers in Cayuga County, NY went without power for an average of 3.6 hours, a total of 147K customer-hours (New York average 2.7 hours). That ranks 40th worst of 62 New York counties and 1636th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
3.6
40,433 customers
Customer-hours out
147K
Peak customers out
5,843
Outages ≥1,000 out
13
0 of 10,000+ · 390 total
Longest outage
1d 20h
began December 12, 2021
Rank in state
40th/62
1636th of 2,974 US

Compared with NY, the US and 2020

Cayuga County, NY average hours without power per customer compared with state and national averages, 2021Cayuga County 3.6 hours, New York average 2.7 hours, US average 8.9 hours, Cayuga County, 2020 4.0 hoursCayuga CountyCayuga County3.6hNew York averageNew York average2.7hUS averageUS average8.9hCayuga County, 2020Cayuga County, 20204.0h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Cayuga County, NY customer-hours without power by month, 2021Jan 4,171, Feb 7,359, Mar 10K, Apr 2,469, May 3,190, Jun 15K, Jul 33K, Aug 14K, Sep 12K, Oct 4,440, Nov 5,904, Dec 36K010k20k30k40k4,171Jan7,359Feb10KMar2,469Apr3,190May15KJun33KJul14KAug12KSep4,440Oct5,904Nov36KDec
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Customer-hours; December was the worst month.

Cayuga County year over year

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Cayuga County, NY: average hours without power per customer by year2015: 2.6h; 2016: 3.3h; 2017: 6.9h; 2018: 4.4h, coverage 98%; 2019: 3.5h, coverage 98%; 2020: 4.0h, coverage 99%; 2021: 3.6h, coverage 99%; 2022: 3.5h, coverage 99%; 2023: 1.5h; 2024: 10.8h; 2025: 5.0h0510150%50%100%2.6h20153.3h20166.9h20174.4h20183.5h20194.0h20203.6h20213.5h20221.5h202310.8h20245.0h2025
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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 Cayuga County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 28, 2021 14:45December 28, 2021 20:005h 15m5,8437,724
2July 13, 2021 20:45July 15, 2021 02:001d 5h5,14423K
3September 23, 2021 21:15September 23, 2021 22:151h3,7963,627
4September 5, 2021 02:30September 5, 2021 04:001h 30m3,7905,685
5August 29, 2021 18:30August 30, 2021 02:308h3,2443,996
6February 27, 2021 14:00February 27, 2021 22:008h2,6897,237
7January 28, 2021 23:15January 29, 2021 01:152h2,6823,223
8June 30, 2021 12:30July 1, 2021 00:1511h 45m1,8244,560
9December 12, 2021 00:30December 13, 2021 20:451d 20h1,57223K
10December 6, 2021 04:00December 7, 2021 05:151d 1h1,3483,005

Outage episodes by size in 2021: 77 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 Cayuga County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
New York State Elec & Gas Corp20164.5 hrs1.563.6 hrs1.47
Niagara Mohawk Power Corp.20213.7 hrs1.322.2 hrs1.12
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 99% of New York's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 40,433 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. Cayuga County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Cayuga 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/cayuga-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON