County annual report · FIPS 19075
2022 Grundy County, IA Power Outage Report
In 2022, customers in Grundy County, IA went without power for an average of 3.8 hours, a total of 21K customer-hours (Iowa average 1.6 hours). That ranks 16th worst of 99 Iowa counties and 1703rd of 2,976 nationally.
Compared with IA, the US and 2021
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Grundy County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 10, 2022 08:15 | April 10, 2022 09:15 | 1h | 1,300 | 1,300 |
| 2 | April 13, 2022 04:45 | April 13, 2022 14:45 | 10h | 1,276 | 4,443 |
| 3 | January 5, 2022 10:00 | January 5, 2022 11:15 | 1h 15m | 796 | 995 |
| 4 | November 1, 2022 14:15 | November 2, 2022 19:45 | 1d 5h | 215 | 438 |
| 5 | June 6, 2022 11:00 | June 6, 2022 15:15 | 4h 15m | 171 | 470 |
| 6 | October 6, 2022 14:45 | October 6, 2022 20:15 | 5h 30m | 169 | 930 |
| 7 | April 22, 2022 11:15 | April 22, 2022 12:30 | 1h 15m | 161 | 44 |
| 8 | April 2, 2022 13:00 | April 4, 2022 14:45 | 2d 1h | 160 | 7,270 |
| 9 | April 22, 2022 03:00 | April 22, 2022 04:15 | 1h 15m | 147 | 183 |
| 10 | June 25, 2022 13:15 | June 25, 2022 15:45 | 2h 30m | 146 | 365 |
Outage episodes by size in 2022: 13 reached 100+ customers, 2 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 Grundy County reported on EIA Form 861 for 2022, 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) | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| Grundy County Rural Elec Coop | - | - | - | - | - |
| Cedar Falls Utilities | - | - | - | - | - |
| City of Dike | - | - | - | - | - |
| Grundy Center Mun Light & Power | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,507 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. Grundy County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grundy County, IA annual power outage report, 2022, 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/2022/iowa/grundy-county