County annual report · FIPS 29045
2023 Clark County, MO Power Outage Report
In 2023, customers in Clark County, MO went without power for an average of 15.2 hours, a total of 61K customer-hours (Missouri average 9.4 hours). That ranks 22nd worst of 114 Missouri counties and 571st of 2,977 nationally.
Compared with MO, the US and 2022
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Clark County, 2023
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 29, 2023 15:15 | July 10, 2023 20:45 | 11d 5h | 2,619 | 52K |
| 2 | January 22, 2023 13:45 | January 22, 2023 14:30 | 45m | 452 | 339 |
| 3 | September 3, 2023 21:00 | September 3, 2023 23:00 | 2h | 434 | 535 |
| 4 | August 5, 2023 05:15 | August 5, 2023 21:15 | 16h | 397 | 3,119 |
| 5 | May 19, 2023 16:45 | May 19, 2023 17:30 | 45m | 384 | 287 |
| 6 | June 21, 2023 12:00 | June 21, 2023 12:15 | 15m | 279 | 70 |
| 7 | May 16, 2023 17:45 | May 16, 2023 19:00 | 1h 15m | 252 | 86 |
| 8 | September 10, 2023 17:15 | September 10, 2023 21:15 | 4h | 128 | 512 |
| 9 | April 14, 2023 23:45 | April 15, 2023 03:45 | 4h | 104 | 415 |
| 10 | October 29, 2023 05:45 | October 29, 2023 08:45 | 3h | 104 | 156 |
Outage episodes by size in 2023: 10 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 Clark County reported on EIA Form 861 for 2023, 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) | 2023 | 8.0 hrs | 1.18 | 1.6 hrs | 0.67 |
| Tri-County Electric Coop Assn (MO) | - | - | - | - | - |
| Lewis County Rural E C A | - | - | - | - | - |
| City of Kahoka | - | - | - | - | - |
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 Missouri's customers in 2023; 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. Clark County has data for 2015–2017, 2019–2025.
Cite this report
MassOutage (massoutage.com), Clark County, MO annual power outage report, 2023, 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/2023/missouri/clark-county