County annual report · FIPS 19121
2020 Madison County, IA Power Outage Report
In 2020, customers in Madison County, IA went without power for an average of 2.1 hours, a total of 19K customer-hours (Iowa average 27.4 hours). That ranks 57th worst of 99 Iowa counties and 2226th 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 Madison 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 16:00 | August 17, 2020 01:00 | 6d 9h | 327 | 15K |
| 2 | July 10, 2020 19:30 | July 10, 2020 21:15 | 1h 45m | 181 | 140 |
| 3 | March 9, 2020 19:00 | March 9, 2020 22:15 | 3h 15m | 180 | 585 |
| 4 | November 29, 2020 19:00 | November 29, 2020 20:15 | 1h 15m | 119 | 89 |
| 5 | July 28, 2020 06:45 | July 28, 2020 11:15 | 4h 30m | 118 | 476 |
| 6 | March 19, 2020 11:45 | March 19, 2020 17:45 | 6h | 82 | 322 |
| 7 | October 6, 2020 08:30 | October 6, 2020 14:15 | 5h 45m | 69 | 380 |
| 8 | December 23, 2020 15:45 | December 23, 2020 18:45 | 3h | 67 | 200 |
| 9 | May 29, 2020 15:30 | May 29, 2020 18:45 | 3h 15m | 55 | 57 |
| 10 | March 14, 2020 14:45 | March 14, 2020 20:45 | 6h | 49 | 264 |
Outage episodes by size in 2020: 5 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 Madison 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 |
| 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 91% of Iowa's customers in 2020; 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, 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/madison-county