County annual report · FIPS 29001
2021 Adair County, MO Power Outage Report
In 2021, customers in Adair County, MO went without power for an average of 1.5 hours, a total of 18K customer-hours (Missouri average 4.5 hours). That ranks 96th worst of 115 Missouri counties and 2479th 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 Adair 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 25, 2021 22:15 | June 26, 2021 05:45 | 7h 30m | 1,910 | 2,998 |
| 2 | August 20, 2021 12:45 | August 20, 2021 21:15 | 8h 30m | 1,400 | 408 |
| 3 | June 7, 2021 21:45 | June 8, 2021 00:30 | 2h 45m | 669 | 1,671 |
| 4 | July 29, 2021 23:45 | July 30, 2021 01:15 | 1h 30m | 669 | 197 |
| 5 | December 21, 2021 18:45 | December 21, 2021 19:45 | 1h | 560 | 420 |
| 6 | July 10, 2021 02:30 | July 10, 2021 06:30 | 4h | 472 | 1,391 |
| 7 | June 21, 2021 01:30 | June 21, 2021 16:00 | 14h 30m | 416 | 1,222 |
| 8 | September 24, 2021 21:00 | September 24, 2021 21:15 | 15m | 399 | 100 |
| 9 | March 29, 2021 20:15 | March 29, 2021 21:30 | 1h 15m | 301 | 226 |
| 10 | June 25, 2021 00:15 | June 25, 2021 01:00 | 45m | 284 | 72 |
Outage episodes by size in 2021: 24 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 Adair 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 |
|---|---|---|---|---|---|
| Union Electric Co - (MO) | 2021 | 4.9 hrs | 1.02 | 1.5 hrs | 0.69 |
| Macon Electric Coop | - | - | - | - | - |
| Tri-County Electric Coop Assn (MO) | - | - | - | - | - |
| Lewis County Rural E C A | - | - | - | - | - |
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 ÷ 12,158 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. Adair County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adair 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/missouri/adair-county