County annual report · FIPS 19013
2019 Black Hawk County, IA Power Outage Report
In 2019, customers in Black Hawk County, IA went without power for an average of 2.3 hours, a total of 134K customer-hours (Iowa average 2.2 hours). That ranks 48th worst of 99 Iowa counties and 1912th of 2,945 nationally.
Compared with IA, the US and 2018
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Black Hawk County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 9, 2019 21:45 | September 11, 2019 07:30 | 1d 9h | 14,037 | 82K |
| 2 | March 27, 2019 19:15 | March 27, 2019 21:30 | 2h 15m | 2,497 | 1,250 |
| 3 | March 17, 2019 13:45 | March 17, 2019 17:15 | 3h 30m | 2,493 | 2,132 |
| 4 | June 29, 2019 21:30 | June 30, 2019 02:00 | 4h 30m | 2,438 | 4,294 |
| 5 | September 12, 2019 19:15 | September 13, 2019 06:15 | 11h | 2,435 | 3,123 |
| 6 | July 31, 2019 15:30 | August 1, 2019 05:00 | 13h 30m | 2,411 | 706 |
| 7 | June 24, 2019 11:45 | June 25, 2019 12:15 | 1d | 1,935 | 660 |
| 8 | March 1, 2019 19:15 | March 1, 2019 20:45 | 1h 30m | 1,595 | 866 |
| 9 | September 22, 2019 08:00 | September 22, 2019 15:30 | 7h 30m | 1,578 | 2,678 |
| 10 | March 9, 2019 21:45 | March 10, 2019 05:00 | 7h 15m | 1,520 | 3,817 |
Outage episodes by size in 2019: 47 reached 100+ customers, 15 reached 1,000+ customers, 1 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 Black Hawk County reported on EIA Form 861 for 2019, 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 |
| Interstate Power and Light Co | - | - | - | - | - |
| East-Central Iowa Rural Elec Coop | - | - | - | - | - |
| Grundy County Rural Elec Coop | - | - | - | - | - |
| Cedar Falls Utilities | - | - | - | - | - |
| La Porte City Utilities | - | - | - | - | - |
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 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 57,533 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. Black Hawk County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Black Hawk County, IA annual power outage report, 2019, 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/2019/iowa/black-hawk-county