massoutage

County annual report · FIPS 17143

2015 Peoria County, IL Power Outage Report

In 2015, customers in Peoria County, IL went without power for an average of 8.2 hours, a total of 1.1M customer-hours (Illinois average 2.3 hours). That ranks 11th worst of 100 Illinois counties and 322nd of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
8.2
137,518 customers
Customer-hours out
1.1M
Peak customers out
23,261
Outages ≥1,000 out
27
2 of 10,000+ · 567 total
Longest outage
6d 21h
began December 24, 2015
Rank in state
11th/100
322nd of 2,484 US

Compared with IL, the US

Peoria County, IL average hours without power per customer compared with state and national averages, 2015Peoria County 8.2 hours, Illinois average 2.3 hours, US average 2.9 hoursPeoria CountyPeoria County8.2hIllinois averageIllinois average2.3hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Peoria County, IL customer-hours without power by month, 2015Jan 0, Feb 0, Mar 0, Apr 3,997, May 23K, Jun 223K, Jul 32K, Aug 18K, Sep 15K, Oct 8,615, Nov 78K, Dec 733K0200k400k600k800k0Jan0Feb0Mar3,997Apr23KMay223KJun32KJul18KAug15KSep8,615Oct78KNov733KDec
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Customer-hours; December was the worst month.

Peoria County year over year

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Peoria County, IL: average hours without power per customer by year2015: 8.2h; 2016: 1.6h; 2017: 0.7h; 2018: 1.6h, coverage 92%; 2019: 2.5h, coverage 99%; 2020: 3.9h, coverage 94%; 2021: 2.6h, coverage 98%; 2022: 2.4h, coverage 98%; 2023: 2.8h; 2024: 4.0h; 2025: 1.8h02.557.5100%50%100%8.2h20151.6h20160.7h20171.6h20182.5h20193.9h20202.6h20212.4h20222.8h20234.0h20241.8h2025
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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 Peoria County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 24, 2015 03:00December 31, 2015 00:156d 21h23,261729K
2June 7, 2015 12:45June 10, 2015 15:153d 2h11,440139K
3June 20, 2015 21:30June 21, 2015 22:001d9,56345K
4November 21, 2015 09:00November 24, 2015 17:003d 8h7,59336K
5June 10, 2015 16:00June 14, 2015 02:153d 10h6,46428K
6November 12, 2015 00:30November 17, 2015 03:305d 3h4,10129K
7July 9, 2015 02:30July 9, 2015 08:456h 15m3,3728,482
8November 2, 2015 19:00November 2, 2015 23:154h 15m2,6182,152
9May 4, 2015 09:45May 5, 2015 00:1514h 30m2,3676,704
10November 25, 2015 09:45November 25, 2015 21:4512h2,2121,793

Outage episodes by size in 2015: 78 reached 100+ customers, 27 reached 1,000+ customers, 2 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 Peoria County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20155.9 hrs1.392.2 hrs1.04
Ameren-----
Spoon River Electric 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 n/a of Illinois's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 137,518 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. Peoria County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Peoria County, IL annual power outage report, 2015, 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/2015/illinois/peoria-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON