County annual report · FIPS 19013
2016 Black Hawk County, IA Power Outage Report
In 2016, customers in Black Hawk County, IA went without power for an average of 2.1 hours, a total of 120K customer-hours (Iowa average 1.8 hours). That ranks 45th worst of 99 Iowa counties and 1306th of 2,391 nationally.
Compared with IA, the US and 2015
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Black Hawk County, 2016
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 22, 2016 06:00 | September 23, 2016 01:00 | 19h | 32,746 | 55K |
| 2 | June 10, 2016 20:30 | June 12, 2016 08:15 | 1d 11h | 3,718 | 4,831 |
| 3 | May 26, 2016 09:30 | May 27, 2016 09:00 | 23h 30m | 3,166 | 17K |
| 4 | November 14, 2016 21:30 | November 14, 2016 21:45 | 15m | 3,057 | 764 |
| 5 | June 9, 2016 04:30 | June 9, 2016 10:45 | 6h 15m | 1,765 | 2,664 |
| 6 | June 2, 2016 06:30 | June 2, 2016 07:00 | 30m | 1,763 | 882 |
| 7 | July 16, 2016 00:45 | July 16, 2016 02:15 | 1h 30m | 1,553 | 389 |
| 8 | August 4, 2016 18:15 | August 4, 2016 22:30 | 4h 15m | 1,357 | 1,284 |
| 9 | July 4, 2016 03:15 | July 4, 2016 04:45 | 1h 30m | 1,286 | 327 |
| 10 | May 1, 2016 08:45 | May 1, 2016 10:15 | 1h 30m | 1,196 | 1,791 |
Outage episodes by size in 2016: 49 reached 100+ customers, 12 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 2016, 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 | 2016 | 3.6 hrs | 1.64 | 83 min | 0.90 |
| 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 n/a of Iowa's customers in 2016; 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, 2016, 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/2016/iowa/black-hawk-county