County annual report · FIPS 29059
2020 Dallas County, MO Power Outage Report
In 2020, customers in Dallas County, MO went without power for an average of 4.0 hours, a total of 24K customer-hours (Missouri average 2.8 hours). That ranks 45th worst of 115 Missouri counties and 1605th 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 Dallas 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 | May 4, 2020 20:45 | May 5, 2020 01:00 | 4h 15m | 2,466 | 9,788 |
| 2 | January 21, 2020 17:15 | January 21, 2020 18:15 | 1h | 1,116 | 837 |
| 3 | April 21, 2020 14:15 | April 21, 2020 16:30 | 2h 15m | 1,114 | 2,507 |
| 4 | March 12, 2020 19:45 | March 13, 2020 13:00 | 17h 15m | 651 | 1,008 |
| 5 | September 28, 2020 19:30 | September 28, 2020 20:45 | 1h 15m | 425 | 319 |
| 6 | February 24, 2020 08:00 | February 24, 2020 11:45 | 3h 45m | 364 | 1,171 |
| 7 | September 1, 2020 18:15 | September 1, 2020 20:15 | 2h | 275 | 180 |
| 8 | July 1, 2020 15:15 | July 1, 2020 18:00 | 2h 45m | 234 | 352 |
| 9 | June 4, 2020 10:30 | June 4, 2020 18:00 | 7h 30m | 217 | 871 |
| 10 | May 15, 2020 00:15 | May 15, 2020 02:45 | 2h 30m | 176 | 440 |
Outage episodes by size in 2020: 12 reached 100+ customers, 3 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 Dallas 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 |
|---|---|---|---|---|---|
| Empire District Electric Co | 2020 | 70 min | 0.78 | 66 min | 0.70 |
| Southwest Electric Coop, Inc | 2020 | 2.6 hrs | 1.23 | 1.8 hrs | 1.09 |
| Laclede Electric Coop, Inc | 2020 | 4.0 hrs | 1.81 | 2.1 hrs | 1.58 |
| Webster Electric Coop | - | - | - | - | - |
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 ÷ 5,897 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. Dallas County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Dallas 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/dallas-county