massoutage

County annual report · FIPS 17161

2018 Rock Island County, IL Power Outage Report

In 2018, customers in Rock Island County, IL went without power for an average of 1.3 hours, a total of 106K customer-hours (Illinois average 2.5 hours). That ranks 82nd worst of 102 Illinois counties and 2204th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.3
83,685 customers
Customer-hours out
106K
Peak customers out
5,794
Outages ≥1,000 out
10
0 of 10,000+ · 950 total
Longest outage
1d 7h
began September 25, 2018
Rank in state
82nd/102
2204th of 2,798 US

Compared with IL, the US and 2017

Rock Island County, IL average hours without power per customer compared with state and national averages, 2018Rock Island County 1.3 hours, Illinois average 2.5 hours, US average 5.6 hours, Rock Island County, 2017 1.5 hoursRock Island CountyRock Island County1.3hIllinois averageIllinois average2.5hUS averageUS average5.6hRock Island County, 2017Rock Island County, …1.5h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Rock Island County, IL customer-hours without power by month, 2018Jan 2,784, Feb 1,833, Mar 2,888, Apr 6,730, May 5,531, Jun 8,394, Jul 9,151, Aug 25K, Sep 30K, Oct 10K, Nov 2,262, Dec 1,405010k20k30k40k2,784Jan1,833Feb2,888Mar6,730Apr5,531May8,394Jun9,151Jul25KAug30KSep10KOct2,262Nov1,405Dec
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Customer-hours; September was the worst month.

Rock Island County year over year

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Rock Island County, IL: average hours without power per customer by year2015: 1.2h; 2016: 3.7h; 2017: 1.5h; 2018: 1.3h, coverage 92%; 2019: 1.8h, coverage 99%; 2020: 29.8h, coverage 94%; 2021: 1.8h, coverage 98%; 2022: 1.4h, coverage 98%; 2023: 5.2h; 2024: 4.9h; 2025: 4.3h01020300%50%100%1.2h20153.7h20161.5h20171.3h20181.8h201929.8h20201.8h20211.4h20225.2h20234.9h20244.3h2025
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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 Rock Island County, 2018

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 25, 2018 20:00September 27, 2018 03:301d 7h5,79425K
2August 29, 2018 06:30August 30, 2018 03:1520h 45m2,34414K
3April 27, 2018 22:00April 28, 2018 04:306h 30m2,2172,893
4July 13, 2018 13:45July 14, 2018 19:301d 5h1,8293,958
5October 29, 2018 02:15October 29, 2018 08:156h1,140963
6April 24, 2018 07:45April 24, 2018 09:001h 15m1,1231,404
7October 6, 2018 17:15October 6, 2018 22:305h 15m1,084862
8June 9, 2018 04:45June 9, 2018 08:003h 15m1,0831,230
9June 2, 2018 00:00June 2, 2018 02:302h 30m1,030827
10August 17, 2018 01:15August 17, 2018 06:155h1,0012,483

Outage episodes by size in 2018: 82 reached 100+ customers, 10 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 Rock Island County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co20181.9 hrs1.1875 min0.96

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 92% of Illinois's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 83,685 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. Rock Island County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Rock Island County, IL annual power outage report, 2018, 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/2018/illinois/rock-island-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON