County annual report · FIPS 19171
2016 Tama County, IA Power Outage Report
In 2016, customers in Tama County, IA went without power for an average of 2.5 hours, a total of 20K customer-hours (Iowa average 1.8 hours). That ranks 36th worst of 99 Iowa counties and 1160th 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 Tama 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 | February 19, 2016 18:15 | February 19, 2016 19:45 | 1h 30m | 1,533 | 484 |
| 2 | February 2, 2016 14:00 | February 2, 2016 20:30 | 6h 30m | 1,473 | 1,283 |
| 3 | May 26, 2016 09:15 | May 26, 2016 22:00 | 12h 45m | 1,419 | 1,629 |
| 4 | May 10, 2016 07:45 | May 10, 2016 14:00 | 6h 15m | 1,275 | 6,377 |
| 5 | December 16, 2016 20:45 | December 16, 2016 22:00 | 1h 15m | 527 | 530 |
| 6 | June 11, 2016 06:15 | June 11, 2016 19:00 | 12h 45m | 456 | 1,171 |
| 7 | February 25, 2016 09:00 | February 25, 2016 12:45 | 3h 45m | 425 | 656 |
| 8 | August 4, 2016 22:15 | August 5, 2016 06:15 | 8h | 320 | 758 |
| 9 | August 15, 2016 09:00 | August 15, 2016 09:30 | 30m | 305 | 153 |
| 10 | April 13, 2016 07:30 | April 13, 2016 08:30 | 1h | 253 | 128 |
Outage episodes by size in 2016: 17 reached 100+ customers, 4 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 Tama 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 |
|---|---|---|---|---|---|
| T I P Rural Electric Coop | 2016 | 1.6 hrs | 1.20 | 1.6 hrs | 1.20 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| East-Central Iowa Rural Elec Coop | - | - | - | - | - |
| Grundy County Rural Elec Coop | - | - | - | - | - |
| Consumers Energy Coop - (IA) | - | - | - | - | - |
| City of Traer - (IA) | - | - | - | - | - |
| City of Dysart - (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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,169 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. Tama County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tama 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/tama-county