massoutage

County annual report · FIPS 19113

2020 Linn County, IA Power Outage Report

In 2020, customers in Linn County, IA went without power for an average of 136.1 hours, a total of 16.1M customer-hours (Iowa average 27.4 hours). That ranks 3rd worst of 99 Iowa counties and 39th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
136.1
118,247 customers
Customer-hours out
16.1M
Peak customers out
109,389
Outages ≥1,000 out
23
2 of 10,000+ · 872 total
Longest outage
18d 18h
began August 10, 2020
Rank in state
3rd/99
39th of 3,019 US

Compared with IA, the US and 2019

Linn County, IA average hours without power per customer compared with state and national averages, 2020Linn County 136.1 hours, Iowa average 27.4 hours, US average 8.7 hours, Linn County, 2019 1.6 hoursLinn CountyLinn County136.1hIowa averageIowa average27.4hUS averageUS average8.7hLinn County, 2019Linn County, 20191.6h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Linn County, IA customer-hours without power by month, 2020Jan 9,317, Feb 2,671, Mar 3,188, Apr 5,602, May 9,027, Jun 8,623, Jul 130K, Aug 15.8M, Sep 43K, Oct 11K, Nov 20K, Dec 4,40005M10M15M20M9,317Jan2,671Feb3,188Mar5,602Apr9,027May8,623Jun130KJul15.8MAug43KSep11KOct20KNov4,400Dec
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Customer-hours; August was the worst month.

Linn County year over year

CSVJSON
Linn County, IA: average hours without power per customer by year2015: 1.3h; 2016: 1.3h; 2017: 1.2h; 2018: 1.0h, coverage 89%; 2019: 1.6h, coverage 89%; 2020: 136.1h, coverage 91%; 2021: 1.1h, coverage 91%; 2022: 0.9h, coverage 91%; 2023: 2.9h; 2024: 1.5h; 2025: 1.2h0501001500%50%100%1.3h20151.3h20161.2h20171.0h20181.6h2019136.1h20201.1h20210.9h20222.9h20231.5h20241.2h2025
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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 Iowa customers tracked each year.

Biggest outages in Linn County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 10, 2020 13:45August 29, 2020 08:0018d 18h109,38915.8M
2July 11, 2020 15:30July 14, 2020 03:152d 11h19,584112K
3November 2, 2020 15:30November 4, 2020 00:151d 8h6,82515K
4September 6, 2020 08:00September 7, 2020 01:4517h 45m4,23716K
5September 30, 2020 13:45September 30, 2020 22:308h 45m4,1324,388
6October 29, 2020 13:30October 30, 2020 01:4512h 15m3,5573,121
7August 31, 2020 03:15September 3, 2020 00:452d 21h2,2658,761
8September 7, 2020 02:45September 8, 2020 03:151d2,1772,427
9September 3, 2020 12:45September 5, 2020 02:451d 14h2,1034,406
10April 23, 2020 01:00April 23, 2020 07:156h 15m1,7181,056

Outage episodes by size in 2020: 118 reached 100+ customers, 23 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 Linn 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
Eastern Iowa Light & Power Coop202010.6 hrs2.121.9 hrs1.18
East-Central Iowa Rural Elec Coop202014.1 hrs1.0154 min0.59
Maquoketa Valley Rrl Elec Coop20204.5 hrs1.1273 min0.75
Linn County REC202058.0 hrs3.022.6 hrs1.74
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
City of Coggon - (IA)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Iowa's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 118,247 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. Linn County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Linn County, IA 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/iowa/linn-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON