massoutage

County annual report · FIPS 36021

2021 Columbia County, NY Power Outage Report

In 2021, customers in Columbia County, NY went without power for an average of 9.4 hours, a total of 289K customer-hours (New York average 2.7 hours). That ranks 13th worst of 62 New York counties and 822nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
9.4
30,817 customers
Customer-hours out
289K
Peak customers out
13,758
Outages ≥1,000 out
28
1 of 10,000+ · 525 total
Longest outage
2d 19h
began June 29, 2021
Rank in state
13th/62
822nd of 2,974 US

Compared with NY, the US and 2020

Columbia County, NY average hours without power per customer compared with state and national averages, 2021Columbia County 9.4 hours, New York average 2.7 hours, US average 8.9 hours, Columbia County, 2020 20.0 hoursColumbia CountyColumbia County9.4hNew York averageNew York average2.7hUS averageUS average8.9hColumbia County, 2020Columbia County, 202020.0h
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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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Columbia County, NY customer-hours without power by month, 2021Jan 14K, Feb 8,169, Mar 50K, Apr 13K, May 9,923, Jun 75K, Jul 35K, Aug 37K, Sep 15K, Oct 13K, Nov 9,026, Dec 9,574020k40k60k80k14KJan8,169Feb50KMar13KApr9,923May75KJun35KJul37KAug15KSep13KOct9,026Nov9,574Dec
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Customer-hours; June was the worst month.

Columbia County year over year

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Columbia County, NY: average hours without power per customer by year2015: 4.2h; 2016: 10.7h; 2017: 9.6h; 2018: 25.9h, coverage 98%; 2019: 9.1h, coverage 98%; 2020: 20.0h, coverage 99%; 2021: 9.4h, coverage 99%; 2022: 12.2h, coverage 99%; 2023: 35.0h; 2024: 20.3h; 2025: 6.4h0102030400%50%100%4.2h201510.7h20169.6h201725.9h20189.1h201920.0h20209.4h202112.2h202235.0h202320.3h20246.4h2025
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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 Columbia County, 2021

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 29, 2021 15:15July 2, 2021 10:302d 19h13,75873K
2April 24, 2021 11:30April 24, 2021 12:301h9,9804,991
3March 7, 2021 23:30March 8, 2021 00:0030m5,6461,827
4August 11, 2021 23:15August 13, 2021 09:151d 10h5,22817K
5March 5, 2021 15:15March 5, 2021 15:4530m4,3122,156
6March 1, 2021 22:00March 3, 2021 02:451d 4h3,67630K
7July 27, 2021 21:45July 28, 2021 12:0014h 15m2,3742,031
8January 24, 2021 09:30January 24, 2021 20:0010h 30m2,27611K
9March 24, 2021 22:45March 25, 2021 03:304h 45m2,1634,860
10July 17, 2021 21:30July 18, 2021 11:1513h 45m2,1381,856

Outage episodes by size in 2021: 101 reached 100+ customers, 28 reached 1,000+ customers, 1 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 Columbia County reported on EIA Form 861 for 2021, 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
Niagara Mohawk Power Corp.20213.7 hrs1.322.2 hrs1.12
Central Hudson Gas & Elec Corp20152.9 hrs1.382.9 hrs1.38
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 ÷ 30,817 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. Columbia County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Columbia 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/columbia-county

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