County annual report · FIPS 19021
2025 Buena Vista County, IA Power Outage Report
In 2025, customers in Buena Vista County, IA went without power for an average of 9.0 hours, a total of 104K customer-hours (Iowa average 2.9 hours). That ranks 16th worst of 99 Iowa counties and 894th of 3,000 nationally.
Compared with IA, the US and 2024
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Buena Vista County, 2025
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 18, 2025 06:30 | April 22, 2025 00:30 | 3d 18h | 6,428 | 78K |
| 2 | July 29, 2025 03:30 | July 30, 2025 15:45 | 1d 12h | 3,558 | 15K |
| 3 | March 5, 2025 05:15 | March 5, 2025 19:00 | 13h 45m | 710 | 4,950 |
| 4 | March 7, 2025 14:45 | March 7, 2025 15:45 | 1h | 620 | 311 |
| 5 | June 21, 2025 11:15 | June 21, 2025 16:15 | 5h | 619 | 791 |
| 6 | May 9, 2025 05:15 | May 9, 2025 07:00 | 1h 45m | 515 | 901 |
| 7 | March 19, 2025 12:15 | March 20, 2025 02:45 | 14h 30m | 320 | 524 |
| 8 | June 21, 2025 09:30 | June 21, 2025 10:00 | 30m | 295 | 148 |
| 9 | April 3, 2025 08:30 | April 3, 2025 10:45 | 2h 15m | 235 | 529 |
| 10 | October 15, 2025 10:00 | October 15, 2025 13:45 | 3h 45m | 235 | 353 |
Outage episodes by size in 2025: 11 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 Buena Vista County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2024 | 5.5 hrs | 1.42 | 1.7 hrs | 0.94 |
| Iowa Lakes Electric Coop | 2024 | 45 min | 0.48 | 45 min | 0.48 |
| Interstate Power and Light Co | - | - | - | - | - |
| Raccoon Valley Electric Cooperative | - | - | - | - | - |
| City of Alta - (IA) | - | - | - | - | - |
| City of Marathon - (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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 11,607 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. Buena Vista County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Buena Vista County, IA annual power outage report, 2025, 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/2025/iowa/buena-vista-county