massoutage

County annual report · FIPS 36013

2015 Chautauqua County, NY Power Outage Report

In 2015, customers in Chautauqua County, NY went without power for an average of 2.7 hours, a total of 135K customer-hours (New York average 1.6 hours). That ranks 34th worst of 62 New York counties and 990th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
2.7
49,280 customers
Customer-hours out
135K
Peak customers out
5,755
Outages ≥1,000 out
14
0 of 10,000+ · 489 total
Longest outage
1d 5h
began December 29, 2015
Rank in state
34th/62
990th of 2,484 US

Compared with NY, the US

Chautauqua County, NY average hours without power per customer compared with state and national averages, 2015Chautauqua County 2.7 hours, New York average 1.6 hours, US average 2.9 hoursChautauqua CountyChautauqua County2.7hNew York averageNew York average1.6hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Chautauqua County, NY customer-hours without power by month, 2015Jan 2,249, Feb 3,915, Mar 7,341, Apr 19K, May 9,755, Jun 24K, Jul 4,181, Aug 1,882, Sep 9,025, Oct 12K, Nov 11K, Dec 29K010k20k30k2,249Jan3,915Feb7,341Mar19KApr9,755May24KJun4,181Jul1,882Aug9,025Sep12KOct11KNov29KDec
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Customer-hours; December was the worst month.

Chautauqua County year over year

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Chautauqua County, NY: average hours without power per customer by year2015: 2.7h; 2016: 2.0h; 2017: 5.1h; 2018: 5.4h, coverage 98%; 2019: 3.4h, coverage 98%; 2020: 4.8h, coverage 99%; 2021: 2.1h, coverage 99%; 2022: 3.0h, coverage 99%; 2023: 6.6h; 2024: 8.0h; 2025: 2.2h02.557.5100%50%100%2.7h20152.0h20165.1h20175.4h20183.4h20194.8h20202.1h20213.0h20226.6h20238.0h20242.2h2025
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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 Chautauqua County, 2015

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
1June 12, 2015 20:15June 13, 2015 19:4523h 30m5,75520K
2September 19, 2015 22:30September 20, 2015 06:458h 15m3,1385,594
3December 29, 2015 02:45December 30, 2015 07:451d 5h2,81728K
4October 2, 2015 05:45October 2, 2015 10:154h 30m2,1432,445
5April 14, 2015 00:00April 14, 2015 06:306h 30m1,9462,783
6September 15, 2015 04:15September 15, 2015 05:451h 30m1,6332,450
7May 8, 2015 16:45May 9, 2015 01:158h 30m1,5091,022
8April 25, 2015 03:45April 25, 2015 06:152h 30m1,4523,630
9October 28, 2015 11:15October 29, 2015 07:4520h 30m1,4286,108
10April 27, 2015 15:00April 27, 2015 23:158h 15m1,3515,902

Outage episodes by size in 2015: 57 reached 100+ customers, 14 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 Chautauqua County reported on EIA Form 861 for 2015, 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 Corp20152.7 hrs1.292.5 hrs1.26
Niagara Mohawk Power Corp.20152.2 hrs1.072.1 hrs1.02
AVANGRID-----
Steuben Rural Elec Coop, Inc-----
Jamestown Board of Public Util-----
Village of Brocton - (NY)-----
Village of Mayville - (NY)-----
Village of Westfield - (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 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 49,280 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. Chautauqua County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Chautauqua County, NY annual power outage report, 2015, 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/2015/new-york/chautauqua-county

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