massoutage

County annual report · FIPS 17083

2020 Jersey County, IL Power Outage Report

In 2020, customers in Jersey County, IL went without power for an average of 2.5 hours, a total of 19K customer-hours (Illinois average 5.9 hours). That ranks 66th worst of 102 Illinois counties and 2045th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
2.5
7,718 customers
Customer-hours out
19K
Peak customers out
2,090
Outages ≥1,000 out
1
0 of 10,000+ · 444 total
Longest outage
4d 22h
began October 23, 2020
Rank in state
66th/102
2045th of 3,019 US

Compared with IL, the US and 2019

Jersey County, IL average hours without power per customer compared with state and national averages, 2020Jersey County 2.5 hours, Illinois average 5.9 hours, US average 8.7 hours, Jersey County, 2019 3.0 hoursJersey CountyJersey County2.5hIllinois averageIllinois average5.9hUS averageUS average8.7hJersey County, 2019Jersey County, 20193.0h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Jersey County, IL customer-hours without power by month, 2020Jan 4,453, Feb 234, Mar 496, Apr 2,071, May 501, Jun 2,048, Jul 1,509, Aug 2,250, Sep 1,989, Oct 1,322, Nov 1,217, Dec 1,34902k4k6k4,453Jan234Feb496Mar2,071Apr501May2,048Jun1,509Jul2,250Aug1,989Sep1,322Oct1,217Nov1,349Dec
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Customer-hours; January was the worst month.

Jersey County year over year

CSVJSON
Jersey County, IL: average hours without power per customer by year2015: 1.8h; 2016: 2.3h; 2017: 1.0h; 2018: 2.0h, coverage 92%; 2019: 3.0h, coverage 99%; 2020: 2.5h, coverage 94%; 2021: 2.6h, coverage 98%; 2022: 4.1h, coverage 98%; 2023: 2.9h; 2024: 2.8h; 2025: 6.7h024680%50%100%1.8h20152.3h20161.0h20172.0h20183.0h20192.5h20202.6h20214.1h20222.9h20232.8h20246.7h2025
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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 Jersey County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 11, 2020 06:00January 11, 2020 21:4515h 45m2,0903,228
2January 31, 2020 17:00January 31, 2020 18:451h 45m645327
3April 30, 2020 19:00April 30, 2020 23:304h 30m614277
4June 29, 2020 00:15June 29, 2020 03:453h 30m5231,179
5April 24, 2020 06:30April 24, 2020 09:303h3881,024
6September 1, 2020 22:00September 2, 2020 01:453h 45m388861
7September 8, 2020 20:00September 8, 2020 23:453h 45m228453
8August 27, 2020 21:15August 27, 2020 23:452h 30m226546
9August 11, 2020 13:45August 11, 2020 20:156h 30m2141,068
10April 9, 2020 00:00April 9, 2020 13:0013h178250

Outage episodes by size in 2020: 16 reached 100+ customers, 1 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 Jersey County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20203.7 hrs1.041.7 hrs0.82
Ameren-----
Illinois Rural Electric Coop-----
M J M Electric Cooperative 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 94% of Illinois's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 7,718 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. Jersey County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jersey County, IL annual power outage report, 2020, 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/2020/illinois/jersey-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON