County annual report · FIPS 29153
2021 Ozark County, MO Power Outage Report
In 2021, customers in Ozark County, MO went without power for an average of 9.8 hours, a total of 39K customer-hours (Missouri average 4.5 hours). That ranks 19th worst of 115 Missouri counties and 794th of 2,974 nationally.
Compared with MO, the US and 2020
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Ozark 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 | June 12, 2021 02:15 | June 13, 2021 23:00 | 1d 20h | 1,820 | 24K |
| 2 | August 1, 2021 02:15 | August 1, 2021 18:00 | 15h 45m | 756 | 2,920 |
| 3 | November 30, 2021 15:30 | November 30, 2021 20:00 | 4h 30m | 675 | 1,862 |
| 4 | September 7, 2021 17:45 | September 7, 2021 18:45 | 1h | 665 | 665 |
| 5 | March 12, 2021 04:30 | March 12, 2021 05:15 | 45m | 664 | 498 |
| 6 | June 14, 2021 22:45 | June 14, 2021 23:45 | 1h | 528 | 528 |
| 7 | June 15, 2021 22:00 | June 15, 2021 22:30 | 30m | 528 | 264 |
| 8 | June 6, 2021 12:00 | June 6, 2021 13:00 | 1h | 378 | 284 |
| 9 | June 30, 2021 17:30 | June 30, 2021 22:00 | 4h 30m | 342 | 1,224 |
| 10 | October 23, 2021 19:15 | October 23, 2021 21:30 | 2h 15m | 321 | 405 |
Outage episodes by size in 2021: 17 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 Ozark 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 |
|---|---|---|---|---|---|
| Howell-Oregon Elec Coop, Inc | - | - | - | - | - |
| White River Valley El Coop Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Missouri's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,000 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. Ozark County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Ozark County, MO 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/). https://massoutage.com/reports/2021/missouri/ozark-county