County annual report · FIPS 29045
2020 Clark County, MO Power Outage Report
In 2020, customers in Clark County, MO went without power for an average of 1.6 hours, a total of 6,508 customer-hours (Missouri average 2.8 hours). That ranks 87th worst of 115 Missouri counties and 2411th of 3,019 nationally.
Compared with MO, the US and 2019
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Clark County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 21, 2020 07:00 | July 21, 2020 08:15 | 1h 15m | 469 | 586 |
| 2 | November 7, 2020 20:00 | November 7, 2020 22:45 | 2h 45m | 465 | 1,063 |
| 3 | February 6, 2020 02:30 | February 6, 2020 04:00 | 1h 30m | 265 | 335 |
| 4 | July 26, 2020 00:45 | July 26, 2020 04:15 | 3h 30m | 198 | 623 |
| 5 | May 24, 2020 15:00 | May 24, 2020 17:45 | 2h 45m | 196 | 207 |
| 6 | July 9, 2020 14:30 | July 9, 2020 18:00 | 3h 30m | 191 | 587 |
| 7 | November 9, 2020 20:30 | November 9, 2020 21:00 | 30m | 180 | 90 |
| 8 | January 30, 2020 18:15 | January 30, 2020 20:30 | 2h 15m | 165 | 148 |
| 9 | October 6, 2020 17:30 | October 6, 2020 18:30 | 1h | 163 | 163 |
| 10 | September 10, 2020 17:15 | September 10, 2020 19:00 | 1h 45m | 127 | 98 |
Outage episodes by size in 2020: 13 reached 100+ customers, 0 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 2020, 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) | 2020 | 2.6 hrs | 0.86 | 86 min | 0.71 |
| 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 95% of Missouri's customers in 2020; 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, 2020, 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/2020/missouri/clark-county