massoutage

County annual report · FIPS 19073

2021 Greene County, IA Power Outage Report

In 2021, customers in Greene County, IA went without power for an average of 39.9 hours, a total of 136K customer-hours (Iowa average 2.7 hours). That ranks 1st worst of 99 Iowa counties and 219th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
39.9
3,417 customers
Customer-hours out
136K
Peak customers out
3,361
Outages ≥1,000 out
1
0 of 10,000+ · 263 total
Longest outage
13d 4h
began February 1, 2021
Rank in state
1st/99
219th of 2,974 US

Compared with IA, the US and 2020

Greene County, IA average hours without power per customer compared with state and national averages, 2021Greene County 39.9 hours, Iowa average 2.7 hours, US average 8.9 hours, Greene County, 2020 29.4 hoursGreene CountyGreene County39.9hIowa averageIowa average2.7hUS averageUS average8.9hGreene County, 2020Greene County, 202029.4h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Greene County, IA customer-hours without power by month, 2021Jan 399, Feb 774, Mar 36, Apr 693, May 1,561, Jun 1,490, Jul 176, Aug 1,156, Sep 146, Oct 366, Nov 108, Dec 129K050k100k150k399Jan774Feb36Mar693Apr1,561May1,490Jun176Jul1,156Aug146Sep366Oct108Nov129KDec
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Customer-hours; December was the worst month.

Greene County year over year

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Greene County, IA: average hours without power per customer by year2015: 3.7h; 2016: 1.9h; 2017: 4.6h; 2018: 6.2h, coverage 89%; 2019: 2.3h, coverage 89%; 2020: 29.4h, coverage 91%; 2021: 39.9h, coverage 91%; 2022: 3.3h, coverage 91%; 2023: 3.0h; 2024: 1.7h; 2025: 10.3h0102030400%50%100%3.7h20151.9h20164.6h20176.2h20182.3h201929.4h202039.9h20213.3h20223.0h20231.7h202410.3h2025
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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 Iowa customers tracked each year.

Biggest outages in Greene County, 2021

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
1December 15, 2021 23:45December 20, 2021 01:154d 1h3,361125K
2May 27, 2021 10:45May 27, 2021 17:006h 15m8291,450
3December 10, 2021 20:30December 11, 2021 17:4521h 15m7234,633
4April 16, 2021 02:45April 16, 2021 04:301h 45m365524
5January 20, 2021 11:30January 20, 2021 11:4515m33083
6June 2, 2021 10:30June 2, 2021 10:4515m32982
7August 23, 2021 08:00August 23, 2021 10:002h308582
8June 10, 2021 19:45June 11, 2021 04:459h2961,066
9December 28, 2021 12:15December 28, 2021 12:3015m27870
10February 21, 2021 15:00February 21, 2021 18:003h123274

Outage episodes by size in 2021: 12 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 Greene County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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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 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 3,417 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. Greene County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Greene County, IA annual power outage report, 2021, 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/). https://massoutage.com/reports/2021/iowa/greene-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON