massoutage

County annual report · FIPS 17015

2017 Carroll County, IL Power Outage Report

In 2017, customers in Carroll County, IL went without power for an average of 3.9 hours, a total of 29K customer-hours (Illinois average 1.4 hours). That ranks 12th worst of 102 Illinois counties and 1130th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
3.9
7,336 customers
Customer-hours out
29K
Peak customers out
2,980
Outages ≥1,000 out
2
0 of 10,000+ · 88 total
Longest outage
1d 18h
began July 20, 2017
Rank in state
12th/102
1130th of 2,786 US

Compared with IL, the US and 2016

Carroll County, IL average hours without power per customer compared with state and national averages, 2017Carroll County 3.9 hours, Illinois average 1.4 hours, US average 7.4 hours, Carroll County, 2016 0.3 hoursCarroll CountyCarroll County3.9hIllinois averageIllinois average1.4hUS averageUS average7.4hCarroll County, 2016Carroll County, 20160.3h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Carroll County, IL customer-hours without power by month, 2017Jan 0, Feb 33, Mar 11K, Apr 297, May 333, Jun 1,026, Jul 15K, Aug 52, Sep 508, Oct 140, Nov 498, Dec 4805k10k15k0Jan33Feb11KMar297Apr333May1,026Jun15KJul52Aug508Sep140Oct498Nov48Dec
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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, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 22, 2017 03:30July 22, 2017 06:002h 30m2,9802,229
2March 7, 2017 06:00March 8, 2017 23:001d 17h1,7749,037
3March 17, 2017 22:30March 18, 2017 00:001h 30m9331,398
4November 27, 2017 15:00November 27, 2017 18:003h642495
5July 20, 2017 01:30July 21, 2017 19:301d 18h50310K
6July 22, 2017 07:00July 23, 2017 10:301d 3h2161,554
7July 24, 2017 16:30July 24, 2017 20:304h202731
8June 19, 2017 20:00June 20, 2017 07:0011h175932
9March 18, 2017 05:30March 18, 2017 08:002h 30m167418
10September 20, 2017 15:00September 20, 2017 20:305h 30m95448

Outage episodes by size in 2017: 9 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 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Commonwealth Edison Co20171.6 hrs0.8255 min0.66
Jo-Carroll Energy, Inc20172.2 hrs0.7866 min0.47

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 2017; 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, 2017, 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/2017/illinois/carroll-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON