County annual report · FIPS 19011
2021 Benton County, IA Power Outage Report
In 2021, customers in Benton County, IA went without power for an average of 1.9 hours, a total of 25K customer-hours (Iowa average 2.7 hours). That ranks 68th worst of 99 Iowa counties and 2293rd of 2,974 nationally.
Compared with IA, the US and 2020
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Benton County, 2021
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 3, 2021 23:15 | May 4, 2021 00:30 | 1h 15m | 1,618 | 442 |
| 2 | May 19, 2021 09:15 | May 19, 2021 12:00 | 2h 45m | 1,369 | 1,240 |
| 3 | July 15, 2021 02:15 | July 15, 2021 11:30 | 9h 15m | 1,188 | 522 |
| 4 | August 8, 2021 06:45 | August 9, 2021 13:00 | 1d 6h | 1,005 | 6,358 |
| 5 | December 16, 2021 02:15 | December 16, 2021 15:15 | 13h | 850 | 3,445 |
| 6 | July 30, 2021 13:45 | August 2, 2021 11:15 | 2d 21h | 603 | 380 |
| 7 | April 30, 2021 13:30 | May 3, 2021 11:45 | 2d 22h | 424 | 502 |
| 8 | June 7, 2021 12:45 | June 7, 2021 15:00 | 2h 15m | 387 | 388 |
| 9 | October 25, 2021 14:00 | October 25, 2021 19:45 | 5h 45m | 367 | 372 |
| 10 | August 24, 2021 20:30 | August 25, 2021 00:15 | 3h 45m | 347 | 509 |
Outage episodes by size in 2021: 25 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 Benton County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| East-Central Iowa Rural Elec Coop | 2021 | 1.7 hrs | 1.30 | 88 min | 1.10 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Linn County REC | 2021 | 2.3 hrs | 1.59 | 2.3 hrs | 1.59 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| City of Traer - (IA) | - | - | - | - | - |
| City of Vinton - (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 91% of Iowa's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 13,498 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. Benton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Benton County, IA annual power outage report, 2021, 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/2021/iowa/benton-county