massoutage

County annual report · FIPS 19099

2020 Jasper County, IA Power Outage Report

In 2020, customers in Jasper County, IA went without power for an average of 110.3 hours, a total of 1.7M customer-hours (Iowa average 27.4 hours). That ranks 4th worst of 99 Iowa counties and 55th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
110.3
15,566 customers
Customer-hours out
1.7M
Peak customers out
14,954
Outages ≥1,000 out
11
1 of 10,000+ · 512 total
Longest outage
13d 12h
began August 10, 2020
Rank in state
4th/99
55th of 3,019 US

Compared with IA, the US and 2019

Jasper County, IA average hours without power per customer compared with state and national averages, 2020Jasper County 110.3 hours, Iowa average 27.4 hours, US average 8.7 hours, Jasper County, 2019 3.5 hoursJasper CountyJasper County110.3hIowa averageIowa average27.4hUS averageUS average8.7hJasper County, 2019Jasper County, 20193.5h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Jasper County, IA customer-hours without power by month, 2020Jan 4,638, Feb 364, Mar 5,921, Apr 711, May 4,593, Jun 6,810, Jul 4,161, Aug 1.7M, Sep 7,050, Oct 1,829, Nov 1,882, Dec 1,0300500k1M1.5M2M4,638Jan364Feb5,921Mar711Apr4,593May6,810Jun4,161Jul1.7MAug7,050Sep1,829Oct1,882Nov1,030Dec
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Customer-hours; August was the worst month.

Jasper County year over year

CSVJSON
Jasper County, IA: average hours without power per customer by year2015: 1.7h; 2016: 2.5h; 2017: 2.3h; 2018: 2.3h, coverage 89%; 2019: 3.5h, coverage 89%; 2020: 110.3h, coverage 91%; 2021: 5.2h, coverage 91%; 2022: 2.6h, coverage 91%; 2023: 2.7h; 2024: 8.8h; 2025: 4.9h0501001500%50%100%1.7h20152.5h20162.3h20172.3h20183.5h2019110.3h20205.2h20212.6h20222.7h20238.8h20244.9h2025
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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 Jasper 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 14:00August 24, 2020 02:4513d 12h14,9541.7M
2September 10, 2020 09:00September 10, 2020 11:002h2,0551,868
3May 25, 2020 21:15May 27, 2020 01:301d 4h1,3313,693
4September 15, 2020 14:00September 15, 2020 21:157h 15m1,2881,948
5July 4, 2020 16:30July 4, 2020 18:302h1,2851,088
6November 23, 2020 19:30November 23, 2020 21:151h 45m1,2731,595
7June 10, 2020 03:15June 10, 2020 05:001h 45m1,2631,922
8January 18, 2020 14:15January 19, 2020 04:3014h 15m1,2364,197
9July 29, 2020 07:30July 29, 2020 11:454h 15m1,1091,863
10June 3, 2020 07:45June 3, 2020 09:151h 30m1,0931,640

Outage episodes by size in 2020: 35 reached 100+ customers, 11 reached 1,000+ customers, 1 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 Jasper 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
MidAmerican Energy Co202018.3 hrs1.4382 min0.79
Consumers Energy Coop - (IA)202035.0 hrs2.7969 min1.26
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Pella Cooperative Elec Assn-----

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 ÷ 15,566 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. Jasper County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jasper 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/jasper-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON