County annual report · FIPS 19039
2015 Clarke County, IA Power Outage Report
In 2015, customers in Clarke County, IA went without power for an average of 3.1 hours, a total of 13K customer-hours (Iowa average 1.1 hours). That ranks 13th worst of 99 Iowa counties and 887th of 2,484 nationally.
Compared with IA, the US
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Clarke County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 17, 2015 07:30 | May 17, 2015 19:00 | 11h 30m | 1,131 | 6,806 |
| 2 | March 10, 2015 15:00 | March 10, 2015 17:30 | 2h 30m | 639 | 1,308 |
| 3 | November 26, 2015 19:00 | November 26, 2015 22:15 | 3h 15m | 514 | 1,638 |
| 4 | June 25, 2015 02:30 | June 25, 2015 14:30 | 12h | 469 | 1,492 |
| 5 | September 2, 2015 12:15 | September 2, 2015 15:00 | 2h 45m | 193 | 331 |
| 6 | February 1, 2015 15:45 | February 1, 2015 22:15 | 6h 30m | 192 | 378 |
| 7 | December 25, 2015 19:30 | December 25, 2015 20:45 | 1h 15m | 119 | 146 |
| 8 | December 14, 2015 01:00 | December 14, 2015 03:30 | 2h 30m | 85 | 137 |
| 9 | November 9, 2015 07:00 | November 9, 2015 15:15 | 8h 15m | 50 | 149 |
| 10 | June 23, 2015 12:00 | June 23, 2015 12:15 | 15m | 49 | 12 |
Outage episodes by size in 2015: 7 reached 100+ customers, 1 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 Clarke County reported on EIA Form 861 for 2015, 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 |
|---|---|---|---|---|---|
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Clarke Electric Coop Inc - (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 n/a of Iowa's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,290 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. Clarke County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clarke County, IA annual power outage report, 2015, 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/). https://massoutage.com/reports/2015/iowa/clarke-county