County annual report · FIPS 29047
2021 Clay County, MO Power Outage Report
In 2021, customers in Clay County, MO went without power for an average of 7.1 hours, a total of 683K customer-hours (Missouri average 4.5 hours). That ranks 30th worst of 115 Missouri counties and 1026th 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 Clay 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 | August 10, 2021 13:45 | August 12, 2021 02:15 | 1d 12h | 20,234 | 79K |
| 2 | June 11, 2021 12:15 | June 18, 2021 02:15 | 6d 14h | 13,332 | 215K |
| 3 | February 16, 2021 13:00 | February 17, 2021 06:15 | 17h 15m | 12,152 | 38K |
| 4 | July 9, 2021 05:45 | July 12, 2021 03:15 | 2d 21h | 8,367 | 46K |
| 5 | December 15, 2021 16:45 | December 18, 2021 23:00 | 3d 6h | 6,751 | 85K |
| 6 | May 9, 2021 05:15 | May 10, 2021 00:45 | 19h 30m | 5,169 | 14K |
| 7 | August 19, 2021 13:00 | August 22, 2021 20:45 | 3d 7h | 4,482 | 12K |
| 8 | December 12, 2021 09:45 | December 12, 2021 11:45 | 2h | 3,870 | 2,988 |
| 9 | May 16, 2021 14:00 | May 17, 2021 07:00 | 17h | 3,579 | 11K |
| 10 | August 12, 2021 17:15 | August 14, 2021 10:15 | 1d 17h | 3,031 | 18K |
Outage episodes by size in 2021: 145 reached 100+ customers, 37 reached 1,000+ customers, 3 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 Clay 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 |
|---|---|---|---|---|---|
| Evergy Metro | 2021 | 4.0 hrs | 1.57 | 1.6 hrs | 0.94 |
| Evergy Kansas Central, Inc | 2021 | 5.8 hrs | 1.68 | 1.7 hrs | 1.02 |
| Union Electric Co - (MO) | 2021 | 4.9 hrs | 1.02 | 1.5 hrs | 0.69 |
| Evergy Missouri West | 2021 | 5.2 hrs | 1.86 | 2.3 hrs | 1.22 |
| Platte-Clay Electric Coop, Inc | 2021 | 2.8 hrs | 1.35 | 44 min | 0.87 |
| Ameren | - | - | - | - | - |
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 ÷ 96,031 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. Clay County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clay 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/clay-county