County annual report · FIPS 19075
2019 Grundy County, IA Power Outage Report
In 2019, customers in Grundy County, IA went without power for an average of 1.2 hours, a total of 6,343 customer-hours (Iowa average 2.2 hours). That ranks 83rd worst of 99 Iowa counties and 2432nd of 2,945 nationally.
Compared with IA, the US and 2018
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Grundy County, 2019
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, 2019 00:30 | May 17, 2019 03:15 | 2h 45m | 1,537 | 2,307 |
| 2 | September 18, 2019 19:00 | September 18, 2019 21:00 | 2h | 459 | 689 |
| 3 | November 6, 2019 15:15 | November 6, 2019 15:30 | 15m | 243 | 61 |
| 4 | February 24, 2019 05:30 | February 24, 2019 20:15 | 14h 45m | 221 | 1,648 |
| 5 | July 26, 2019 18:15 | July 26, 2019 20:00 | 1h 45m | 154 | 270 |
| 6 | February 24, 2019 21:15 | February 25, 2019 01:15 | 4h | 79 | 115 |
| 7 | February 25, 2019 02:00 | February 25, 2019 03:45 | 1h 45m | 53 | 80 |
| 8 | January 25, 2019 21:00 | January 25, 2019 23:30 | 2h 30m | 52 | 124 |
| 9 | March 10, 2019 06:00 | March 10, 2019 08:45 | 2h 45m | 50 | 121 |
| 10 | April 11, 2019 10:45 | April 11, 2019 14:00 | 3h 15m | 48 | 144 |
Outage episodes by size in 2019: 5 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 Grundy County reported on EIA Form 861 for 2019, 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 89% of Iowa's customers in 2019; 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, 2019, 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/2019/iowa/grundy-county