County annual report · FIPS 19179
2018 Wapello County, IA Power Outage Report
In 2018, customers in Wapello County, IA went without power for an average of 2.3 hours, a total of 50K customer-hours (Iowa average 2.2 hours). That ranks 44th worst of 99 Iowa counties and 1738th of 2,798 nationally.
Compared with IA, the US and 2017
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Wapello County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 11, 2018 16:15 | February 11, 2018 16:30 | 15m | 6,921 | 1,730 |
| 2 | June 28, 2018 18:45 | June 29, 2018 21:00 | 1d 2h | 5,500 | 17K |
| 3 | July 19, 2018 22:45 | July 20, 2018 12:00 | 13h 15m | 1,831 | 2,905 |
| 4 | August 28, 2018 16:30 | August 29, 2018 19:45 | 1d 3h | 1,550 | 6,510 |
| 5 | June 14, 2018 15:30 | June 15, 2018 04:45 | 13h 15m | 1,442 | 2,883 |
| 6 | March 5, 2018 15:30 | March 5, 2018 17:45 | 2h 15m | 994 | 747 |
| 7 | March 31, 2018 16:15 | March 31, 2018 16:45 | 30m | 990 | 495 |
| 8 | September 6, 2018 11:45 | September 6, 2018 15:00 | 3h 15m | 889 | 669 |
| 9 | September 6, 2018 21:15 | September 6, 2018 22:15 | 1h | 883 | 459 |
| 10 | September 11, 2018 12:30 | September 11, 2018 20:45 | 8h 15m | 753 | 259 |
Outage episodes by size in 2018: 32 reached 100+ customers, 5 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 Wapello County reported on EIA Form 861 for 2018, 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 | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Chariton Valley Elec Coop, Inc | 2018 | 2.3 hrs | 1.23 | 2.3 hrs | 1.23 |
| Southern Iowa Elec Coop, Inc | 2018 | 1.9 hrs | 1.00 | 1.9 hrs | 1.00 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Access Energy Coop | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of Iowa's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 21,960 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. Wapello County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Wapello County, IA annual power outage report, 2018, 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/2018/iowa/wapello-county