County annual report · FIPS 19181
2020 Warren County, IA Power Outage Report
In 2020, customers in Warren County, IA went without power for an average of 5.2 hours, a total of 125K customer-hours (Iowa average 27.4 hours). That ranks 34th worst of 99 Iowa counties and 1354th of 3,019 nationally.
Compared with IA, the US and 2019
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Warren County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 10, 2020 13:45 | August 16, 2020 21:15 | 6d 7h | 2,549 | 99K |
| 2 | January 18, 2020 22:00 | January 19, 2020 02:30 | 4h 30m | 2,033 | 4,791 |
| 3 | November 18, 2020 06:00 | November 18, 2020 07:45 | 1h 45m | 1,140 | 1,838 |
| 4 | January 18, 2020 17:30 | January 18, 2020 20:45 | 3h 15m | 1,048 | 1,494 |
| 5 | November 18, 2020 18:00 | November 18, 2020 20:15 | 2h 15m | 929 | 301 |
| 6 | September 10, 2020 14:15 | September 10, 2020 14:45 | 30m | 809 | 203 |
| 7 | June 30, 2020 07:00 | June 30, 2020 10:15 | 3h 15m | 740 | 1,846 |
| 8 | September 8, 2020 05:45 | September 8, 2020 06:00 | 15m | 625 | 156 |
| 9 | February 28, 2020 18:00 | February 28, 2020 19:15 | 1h 15m | 462 | 372 |
| 10 | July 24, 2020 07:15 | July 24, 2020 10:00 | 2h 45m | 345 | 605 |
Outage episodes by size in 2020: 33 reached 100+ customers, 4 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 Warren County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2020 | 18.3 hrs | 1.43 | 82 min | 0.79 |
| Indianola Municipal Utilities | 2016 | 29 min | 0.76 | 29 min | 0.76 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Clarke Electric Coop Inc - (IA) | - | - | - | - | - |
| Pella Cooperative Elec Assn | - | - | - | - | - |
| City of Carlisle- (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 ÷ 23,806 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. Warren County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Warren 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/warren-county