massoutage

County annual report · FIPS 36073

2021 Orleans County, NY Power Outage Report

In 2021, customers in Orleans County, NY went without power for an average of 14.8 hours, a total of 302K customer-hours (New York average 2.7 hours). That ranks 4th worst of 62 New York counties and 572nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
14.8
20,376 customers
Customer-hours out
302K
Peak customers out
8,067
Outages ≥1,000 out
5
0 of 10,000+ · 292 total
Longest outage
3d 3h
began December 11, 2021
Rank in state
4th/62
572nd of 2,974 US

Compared with NY, the US and 2020

Orleans County, NY average hours without power per customer compared with state and national averages, 2021Orleans County 14.8 hours, New York average 2.7 hours, US average 8.9 hours, Orleans County, 2020 3.2 hoursOrleans CountyOrleans County14.8hNew York averageNew York average2.7hUS averageUS average8.9hOrleans County, 2020Orleans County, 20203.2h
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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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Orleans County, NY customer-hours without power by month, 2021Jan 26, Feb 235, Mar 10K, Apr 5,547, May 573, Jun 2,073, Jul 4,904, Aug 2,045, Sep 392, Oct 2,143, Nov 1,816, Dec 272K0100k200k300k26Jan235Feb10KMar5,547Apr573May2,073Jun4,904Jul2,045Aug392Sep2,143Oct1,816Nov272KDec
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Customer-hours; December was the worst month.

Orleans County year over year

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Orleans County, NY: average hours without power per customer by year2015: 1.1h; 2016: 1.3h; 2017: 29.2h; 2018: 6.7h, coverage 98%; 2019: 6.8h, coverage 98%; 2020: 3.2h, coverage 99%; 2021: 14.8h, coverage 99%; 2022: 12.0h, coverage 99%; 2023: 2.3h; 2024: 5.4h; 2025: 8.5h01020300%50%100%1.1h20151.3h201629.2h20176.7h20186.8h20193.2h202014.8h202112.0h20222.3h20235.4h20248.5h2025
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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 Orleans 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 11, 2021 20:30December 15, 2021 00:003d 3h8,067270K
2March 1, 2021 21:30March 2, 2021 05:458h 15m1,8825,236
3April 11, 2021 21:15April 12, 2021 01:003h 45m1,3792,069
4March 13, 2021 04:00March 13, 2021 06:152h 15m1,3722,714
5July 3, 2021 16:15July 3, 2021 18:302h 15m1,2872,179
6April 30, 2021 13:00May 1, 2021 00:4511h 45m8062,969
7November 12, 2021 04:30November 12, 2021 07:152h 45m765822
8December 6, 2021 21:00December 7, 2021 10:4513h 45m401954
9October 24, 2021 00:15October 24, 2021 08:158h377870
10March 12, 2021 01:30March 12, 2021 03:151h 45m366549

Outage episodes by size in 2021: 31 reached 100+ customers, 5 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 Orleans 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
Village of Holley - (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 99% of New York's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 20,376 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. Orleans County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Orleans 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/orleans-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON