massoutage

County annual report · FIPS 19051

2016 Davis County, IA Power Outage Report

In 2016, customers in Davis County, IA went without power for an average of 0.4 hours, a total of 1,851 customer-hours (Iowa average 1.8 hours). That ranks 92nd worst of 99 Iowa counties and 2077th of 2,391 nationally.

Summary data CSVJSON
Avg hrs / customer
0.4
4,718 customers
Customer-hours out
1,851
Peak customers out
108
Outages ≥1,000 out
0
0 of 10,000+ · 59 total
Longest outage
1d 15h
began October 22, 2016
Rank in state
92nd/99
2077th of 2,391 US

Compared with IA, the US and 2015

Davis County, IA average hours without power per customer compared with state and national averages, 2016Davis County 0.4 hours, Iowa average 1.8 hours, US average 3.9 hours, Davis County, 2015 2.0 hoursDavis CountyDavis County0.4hIowa averageIowa average1.8hUS averageUS average3.9hDavis County, 2015Davis County, 20152.0h
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Average hours without power per customer in 2016; last bar is this county in 2015.

Month by month

CSVJSON
Davis County, IA customer-hours without power by month, 2016Jan 7, Feb 0, Mar 1, Apr 2, May 10, Jun 80, Jul 410, Aug 205, Sep 808, Oct 137, Nov 95, Dec 9702505007501k7Jan0Feb1Mar2Apr10May80Jun410Jul205Aug808Sep137Oct95Nov97Dec
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Customer-hours; September was the worst month.

Davis County year over year

CSVJSON
Davis County, IA: average hours without power per customer by year2015: 2.0h; 2016: 0.4h; 2017: 2.8h; 2018: 1.2h, coverage 89%; 2019: 2.3h, coverage 89%; 2020: 1.4h, coverage 91%; 2021: 2.0h, coverage 91%; 2022: 0.8h, coverage 91%; 2023: 2.1h; 2024: 2.5h; 2025: 0.8h01230%50%100%2.0h20150.4h20162.8h20171.2h20182.3h20191.4h20202.0h20210.8h20222.1h20232.5h20240.8h2025
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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 Davis County, 2016

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 20, 2016 14:45September 20, 2016 22:007h 15m108438
2July 22, 2016 13:30July 22, 2016 17:153h 45m7457
3September 26, 2016 03:15September 27, 2016 13:001d 9h54281
4July 1, 2016 00:45July 1, 2016 04:003h 15m5172
5July 19, 2016 20:45July 20, 2016 11:0014h 15m3591
6September 24, 2016 19:45September 24, 2016 21:151h 30m3451
7June 16, 2016 13:45June 16, 2016 16:152h 30m3280
8August 2, 2016 17:30August 2, 2016 21:003h 30m3282
9August 29, 2016 22:00August 30, 2016 03:005h1857
10December 23, 2016 22:30December 23, 2016 23:451h 15m1114

Outage episodes by size in 2016: 1 reached 100+ customers, 0 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 Davis County reported on EIA Form 861 for 2016, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Chariton Valley Elec Coop, Inc20162.0 hrs0.8967 min0.60
Southern Iowa Elec Coop, Inc201664 min0.6164 min0.61
Interstate Power and Light Co-----
Access Energy Coop-----
City of Bloomfield - (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 n/a of Iowa's customers in 2016; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,718 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. Davis County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Davis County, IA annual power outage report, 2016, 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/2016/iowa/davis-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON