massoutage

County annual report · FIPS 36025

2021 Delaware County, NY Power Outage Report

In 2021, customers in Delaware County, NY went without power for an average of 10.6 hours, a total of 253K customer-hours (New York average 2.7 hours). That ranks 10th worst of 62 New York counties and 747th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
10.6
23,975 customers
Customer-hours out
253K
Peak customers out
13,527
Outages ≥1,000 out
10
1 of 10,000+ · 407 total
Longest outage
1d 20h
began July 7, 2021
Rank in state
10th/62
747th of 2,974 US

Compared with NY, the US and 2020

Delaware County, NY average hours without power per customer compared with state and national averages, 2021Delaware County 10.6 hours, New York average 2.7 hours, US average 8.9 hours, Delaware County, 2020 8.1 hoursDelaware CountyDelaware County10.6hNew York averageNew York average2.7hUS averageUS average8.9hDelaware County, 2020Delaware County, 20208.1h
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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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Delaware County, NY customer-hours without power by month, 2021Jan 32K, Feb 1,791, Mar 18K, Apr 23K, May 10K, Jun 56K, Jul 62K, Aug 11K, Sep 12K, Oct 6,812, Nov 2,479, Dec 17K020k40k60k80k32KJan1,791Feb18KMar23KApr10KMay56KJun62KJul11KAug12KSep6,812Oct2,479Nov17KDec
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Customer-hours; July was the worst month.

Delaware County year over year

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Delaware County, NY: average hours without power per customer by year2015: 4.0h; 2016: 10.2h; 2017: 6.4h; 2018: 11.7h, coverage 98%; 2019: 7.7h, coverage 98%; 2020: 8.1h, coverage 99%; 2021: 10.6h, coverage 99%; 2022: 27.8h, coverage 99%; 2023: 6.8h; 2024: 36.7h; 2025: 9.0h0102030400%50%100%4.0h201510.2h20166.4h201711.7h20187.7h20198.1h202010.6h202127.8h20226.8h202336.7h20249.0h2025
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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 Delaware County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 24, 2021 10:30June 24, 2021 14:454h 15m13,52743K
2July 13, 2021 00:30July 13, 2021 17:0016h 30m5,70217K
3July 12, 2021 00:00July 12, 2021 17:0017h4,97714K
4June 24, 2021 15:45June 24, 2021 18:002h 15m4,6123,460
5April 20, 2021 16:30April 20, 2021 20:304h4,17911K
6December 27, 2021 21:45December 27, 2021 22:0015m3,201800
7January 4, 2021 00:00January 4, 2021 21:4521h 45m2,35524K
8July 7, 2021 21:45July 9, 2021 18:301d 20h2,3109,229
9March 26, 2021 15:45March 27, 2021 15:3023h 45m1,5066,503
10December 28, 2021 21:45December 28, 2021 22:1530m1,206603

Outage episodes by size in 2021: 78 reached 100+ customers, 10 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 Delaware 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
AVANGRID-----
Delaware County Elec Coop Inc-----

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 ÷ 23,975 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. Delaware County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Delaware 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/delaware-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON