massoutage

County annual report · FIPS 39041

2024 Delaware County, OH Power Outage Report

In 2024, customers in Delaware County, OH went without power for an average of 6.3 hours, a total of 408K customer-hours (Ohio average 9.0 hours). That ranks 28th worst of 88 Ohio counties and 1363rd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
6.3
64,488 customers
Customer-hours out
408K
Peak customers out
11,308
Outages ≥1,000 out
25
1 of 10,000+ · 769 total
Longest outage
4d 16h
began March 15, 2024
Rank in state
28th/88
1363rd of 2,990 US

Compared with OH, the US and 2023

Delaware County, OH average hours without power per customer compared with state and national averages, 2024Delaware County 6.3 hours, Ohio average 9.0 hours, US average 12.6 hours, Delaware County, 2023 4.4 hoursDelaware CountyDelaware County6.3hOhio averageOhio average9.0hUS averageUS average12.6hDelaware County, 2023Delaware County, 20234.4h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Delaware County, OH customer-hours without power by month, 2024Jan 18K, Feb 5,159, Mar 250K, Apr 8,202, May 27K, Jun 17K, Jul 12K, Aug 14K, Sep 13K, Oct 8,870, Nov 7,766, Dec 28K0100k200k300k18KJan5,159Feb250KMar8,202Apr27KMay17KJun12KJul14KAug13KSep8,870Oct7,766Nov28KDec
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Customer-hours; March was the worst month.

Delaware County year over year

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Delaware County, OH: average hours without power per customer by year2015: 2.2h; 2016: 5.4h; 2017: 5.0h; 2018: 2.1h, coverage 93%; 2019: 8.9h, coverage 93%; 2020: 10.0h, coverage 93%; 2021: 5.9h, coverage 93%; 2022: 6.5h, coverage 93%; 2023: 4.4h; 2024: 6.3h; 2025: 4.2h02.557.5100%50%100%2.2h20155.4h20165.0h20172.1h20188.9h201910.0h20205.9h20216.5h20224.4h20236.3h20244.2h2025
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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 Ohio customers tracked each year.

Biggest outages in Delaware County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 15, 2024 00:30March 19, 2024 17:004d 16h11,308170K
2December 29, 2024 19:45December 30, 2024 21:151d 1h5,0276,621
3May 2, 2024 12:30May 3, 2024 03:3015h4,0333,897
4December 20, 2024 04:30December 20, 2024 21:1516h 45m3,8276,042
5June 23, 2024 00:30June 24, 2024 19:001d 18h2,7877,941
6April 30, 2024 08:45April 30, 2024 09:451h2,6161,311
7November 5, 2024 14:30November 5, 2024 21:156h 45m2,5181,995
8January 8, 2024 18:45January 8, 2024 20:151h 30m2,4761,242
9May 21, 2024 05:45May 21, 2024 20:3014h 45m2,47213K
10August 1, 2024 12:45August 1, 2024 15:002h 15m2,4693,092

Outage episodes by size in 2024: 101 reached 100+ customers, 25 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 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ohio Power Co20244.5 hrs1.132.6 hrs0.99
Ohio Edison Co20243.9 hrs1.281.9 hrs1.03
Dayton Power & Light Co20248.4 hrs1.261.8 hrs0.87
Duke Energy Ohio Inc20245.4 hrs1.041.7 hrs0.80
Licking Rural Electric Inc20244.0 hrs1.641.9 hrs1.04
Consolidated Cooperative20245.9 hrs1.2387 min0.93
Union Rural Electric Coop, Inc20244.3 hrs2.1159 min0.48
City of Westerville - (OH)202457 min0.8521 min0.35
Prospect Corporation-----

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 Ohio's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 64,488 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, OH annual power outage report, 2024, 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/2024/ohio/delaware-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON