County annual report · FIPS 19075
2016 Grundy County, IA Power Outage Report
In 2016, customers in Grundy County, IA went without power for an average of 3.2 hours, a total of 18K customer-hours (Iowa average 1.8 hours). That ranks 21st worst of 99 Iowa counties and 942nd 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 Grundy 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 | June 11, 2016 06:15 | June 11, 2016 18:30 | 12h 15m | 1,056 | 1,171 |
| 2 | February 3, 2016 08:45 | February 3, 2016 20:00 | 11h 15m | 990 | 2,494 |
| 3 | June 9, 2016 19:15 | June 9, 2016 22:45 | 3h 30m | 856 | 282 |
| 4 | August 11, 2016 11:00 | August 11, 2016 14:15 | 3h 15m | 801 | 556 |
| 5 | July 17, 2016 09:30 | July 18, 2016 05:15 | 19h 45m | 683 | 4,519 |
| 6 | May 26, 2016 09:15 | May 27, 2016 01:30 | 16h 15m | 645 | 2,923 |
| 7 | August 4, 2016 23:45 | August 5, 2016 03:15 | 3h 30m | 495 | 445 |
| 8 | August 5, 2016 22:30 | August 6, 2016 02:30 | 4h | 446 | 1,558 |
| 9 | May 13, 2016 19:30 | May 13, 2016 22:15 | 2h 45m | 444 | 1,221 |
| 10 | March 16, 2016 15:00 | March 16, 2016 15:45 | 45m | 434 | 115 |
Outage episodes by size in 2016: 14 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 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 |
|---|---|---|---|---|---|
| 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 n/a of Iowa's customers in 2016; 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, 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/). https://massoutage.com/reports/2016/iowa/grundy-county