County annual report · FIPS 19115
2018 Louisa County, IA Power Outage Report
In 2018, customers in Louisa County, IA went without power for an average of 11.0 hours, a total of 50K customer-hours (Iowa average 2.2 hours). That ranks 2nd worst of 99 Iowa counties and 503rd 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 Louisa 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 | July 12, 2018 05:30 | July 12, 2018 08:30 | 3h | 1,441 | 3,612 |
| 2 | July 13, 2018 18:00 | July 13, 2018 22:00 | 4h | 1,439 | 1,744 |
| 3 | July 25, 2018 04:15 | July 25, 2018 07:45 | 3h 30m | 1,435 | 5,023 |
| 4 | March 24, 2018 11:00 | March 25, 2018 00:30 | 13h 30m | 725 | 2,372 |
| 5 | September 18, 2018 16:45 | September 19, 2018 18:30 | 1d 1h | 416 | 1,074 |
| 6 | July 11, 2018 19:30 | July 11, 2018 22:45 | 3h 15m | 291 | 614 |
| 7 | August 24, 2018 09:00 | August 24, 2018 15:30 | 6h 30m | 282 | 887 |
| 8 | August 28, 2018 23:30 | August 29, 2018 22:00 | 22h 30m | 256 | 226 |
| 9 | September 9, 2018 13:15 | September 9, 2018 18:30 | 5h 15m | 241 | 66 |
| 10 | November 19, 2018 14:00 | November 27, 2018 15:15 | 8d 1h | 170 | 30K |
Outage episodes by size in 2018: 12 reached 100+ customers, 3 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 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 |
|---|---|---|---|---|---|
| Eastern Iowa Light & Power Coop | 2018 | 1.9 hrs | 0.92 | 1.7 hrs | 0.85 |
| 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 89% of Iowa's customers in 2018; 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, 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/louisa-county