County annual report · FIPS 19115
2025 Louisa County, IA Power Outage Report
In 2025, customers in Louisa County, IA went without power for an average of 2.1 hours, a total of 9,688 customer-hours (Iowa average 2.9 hours). That ranks 70th worst of 99 Iowa counties and 2374th of 3,000 nationally.
Compared with IA, the US and 2024
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Louisa County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 16, 2025 19:45 | December 16, 2025 20:30 | 45m | 1,390 | 1,043 |
| 2 | May 16, 2025 13:00 | May 16, 2025 14:45 | 1h 45m | 1,384 | 963 |
| 3 | September 22, 2025 19:45 | September 22, 2025 22:15 | 2h 30m | 589 | 598 |
| 4 | March 30, 2025 05:15 | March 30, 2025 08:00 | 2h 45m | 372 | 600 |
| 5 | July 11, 2025 21:30 | July 12, 2025 05:45 | 8h 15m | 333 | 499 |
| 6 | May 20, 2025 08:15 | May 20, 2025 16:00 | 7h 45m | 260 | 592 |
| 7 | April 24, 2025 12:30 | April 24, 2025 16:45 | 4h 15m | 182 | 464 |
| 8 | August 11, 2025 00:15 | August 11, 2025 03:15 | 3h | 152 | 205 |
| 9 | September 6, 2025 18:30 | September 6, 2025 20:00 | 1h 30m | 143 | 215 |
| 10 | May 16, 2025 00:00 | May 16, 2025 01:45 | 1h 45m | 142 | 249 |
Outage episodes by size in 2025: 13 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 Louisa County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Eastern Iowa Light & Power Coop | 2024 | 3.7 hrs | 1.29 | 1.6 hrs | 0.90 |
| Interstate Power and Light Co | - | - | - | - | - |
| Access Energy Coop | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,554 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. Louisa County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Louisa County, IA annual power outage report, 2025, 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/2025/iowa/louisa-county