County annual report · FIPS 19121
2023 Madison County, IA Power Outage Report
In 2023, customers in Madison County, IA went without power for an average of 1.3 hours, a total of 12K customer-hours (Iowa average 2.0 hours). That ranks 65th worst of 99 Iowa counties and 2563rd of 2,977 nationally.
Compared with IA, the US and 2022
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Madison County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 5, 2023 02:00 | January 5, 2023 02:30 | 30m | 1,443 | 361 |
| 2 | April 24, 2023 20:45 | April 24, 2023 22:30 | 1h 45m | 1,420 | 912 |
| 3 | April 2, 2023 16:30 | April 2, 2023 20:00 | 3h 30m | 744 | 949 |
| 4 | August 3, 2023 09:00 | August 3, 2023 18:45 | 9h 45m | 516 | 1,258 |
| 5 | April 6, 2023 11:45 | April 6, 2023 20:15 | 8h 30m | 388 | 1,101 |
| 6 | August 11, 2023 06:00 | August 11, 2023 13:30 | 7h 30m | 376 | 289 |
| 7 | August 18, 2023 13:45 | August 18, 2023 14:45 | 1h | 376 | 285 |
| 8 | June 8, 2023 19:30 | June 8, 2023 20:15 | 45m | 374 | 281 |
| 9 | June 27, 2023 12:15 | June 27, 2023 13:30 | 1h 15m | 370 | 370 |
| 10 | April 19, 2023 09:45 | April 19, 2023 11:45 | 2h | 363 | 726 |
Outage episodes by size in 2023: 17 reached 100+ customers, 2 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 Madison County reported on EIA Form 861 for 2023, 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 | 2023 | 2.8 hrs | 1.13 | 78 min | 0.83 |
| Farmers Electric Coop, Inc - (IA) | 2018 | 5.9 hrs | 1.44 | 2.1 hrs | 1.26 |
| Interstate Power and Light Co | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
| Clarke Electric Coop Inc - (IA) | - | - | - | - | - |
| City of Winterset - (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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,366 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. Madison County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Madison County, IA annual power outage report, 2023, 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/2023/iowa/madison-county