massoutage

County annual report · FIPS 17015

2023 Carroll County, IL Power Outage Report

In 2023, customers in Carroll County, IL went without power for an average of 4.7 hours, a total of 34K customer-hours (Illinois average 4.0 hours). That ranks 53rd worst of 102 Illinois counties and 1531st of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
4.7
7,336 customers
Customer-hours out
34K
Peak customers out
3,336
Outages ≥1,000 out
2
0 of 10,000+ · 277 total
Longest outage
2d 12h
began February 22, 2023
Rank in state
53rd/102
1531st of 2,977 US

Compared with IL, the US and 2022

Carroll County, IL average hours without power per customer compared with state and national averages, 2023Carroll County 4.7 hours, Illinois average 4.0 hours, US average 7.1 hours, Carroll County, 2022 2.0 hoursCarroll CountyCarroll County4.7hIllinois averageIllinois average4.0hUS averageUS average7.1hCarroll County, 2022Carroll County, 20222.0h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Carroll County, IL customer-hours without power by month, 2023Jan 245, Feb 6,954, Mar 4,187, Apr 1,607, May 3,538, Jun 1,326, Jul 13K, Aug 1,917, Sep 205, Oct 584, Nov 211, Dec 21205k10k15k245Jan6,954Feb4,187Mar1,607Apr3,538May1,326Jun13KJul1,917Aug205Sep584Oct211Nov212Dec
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Customer-hours; July was the worst month.

Carroll County year over year

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Carroll County, IL: average hours without power per customer by year2015: 1.0h; 2016: 0.3h; 2017: 3.9h; 2018: 2.3h, coverage 92%; 2019: 3.0h, coverage 99%; 2020: 17.5h, coverage 94%; 2021: 3.6h, coverage 98%; 2022: 2.0h, coverage 98%; 2023: 4.7h; 2024: 9.9h; 2025: 4.1h051015200%50%100%1.0h20150.3h20163.9h20172.3h20183.0h201917.5h20203.6h20212.0h20224.7h20239.9h20244.1h2025
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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 Illinois customers tracked each year.

Biggest outages in Carroll County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 29, 2023 02:30July 30, 2023 22:001d 19h3,3367,198
2July 14, 2023 23:15July 15, 2023 01:452h 30m1,1772,942
3March 27, 2023 20:45March 27, 2023 22:151h 30m906228
4August 14, 2023 20:45August 14, 2023 22:452h7991,394
5May 8, 2023 02:00May 8, 2023 06:154h 15m7903,169
6February 22, 2023 20:15February 25, 2023 08:152d 12h5986,168
7March 25, 2023 10:00March 26, 2023 01:4515h 45m5343,821
8July 28, 2023 07:45July 28, 2023 18:0010h 15m5061,726
9July 9, 2023 01:00July 9, 2023 02:451h 45m203354
10April 1, 2023 00:00April 2, 2023 14:301d 14h1811,226

Outage episodes by size in 2023: 13 reached 100+ customers, 2 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 Carroll County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Commonwealth Edison Co20231.6 hrs0.6135 min0.48
Jo-Carroll Energy, Inc20232.9 hrs0.7131 min0.27

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 Illinois's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 7,336 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. Carroll County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Carroll County, IL annual power outage report, 2023, 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/2023/illinois/carroll-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON