County annual report · FIPS 29059
2018 Dallas County, MO Power Outage Report
In 2018, customers in Dallas County, MO went without power for an average of 1.3 hours, a total of 7,828 customer-hours (Missouri average 1.7 hours). That ranks 48th worst of 96 Missouri counties and 2171st of 2,798 nationally.
Compared with MO, the US and 2017
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Dallas County, 2018
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 20, 2018 20:00 | June 20, 2018 22:15 | 2h 15m | 406 | 363 |
| 2 | August 17, 2018 02:00 | August 17, 2018 06:45 | 4h 45m | 359 | 940 |
| 3 | May 20, 2018 00:00 | May 20, 2018 07:15 | 7h 15m | 255 | 1,267 |
| 4 | September 17, 2018 18:15 | September 17, 2018 19:00 | 45m | 243 | 182 |
| 5 | August 17, 2018 13:30 | August 17, 2018 16:45 | 3h 15m | 218 | 179 |
| 6 | June 26, 2018 21:00 | June 27, 2018 06:30 | 9h 30m | 172 | 793 |
| 7 | December 3, 2018 21:00 | December 3, 2018 22:00 | 1h | 169 | 71 |
| 8 | November 29, 2018 17:00 | November 29, 2018 18:45 | 1h 45m | 134 | 189 |
| 9 | July 20, 2018 13:00 | July 20, 2018 13:15 | 15m | 108 | 27 |
| 10 | June 14, 2018 17:45 | June 14, 2018 19:45 | 2h | 99 | 158 |
Outage episodes by size in 2018: 9 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 Dallas County reported on EIA Form 861 for 2018, 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 | 2018 | 2.1 hrs | 1.34 | 1.5 hrs | 1.05 |
| Southwest Electric Coop, Inc | 2018 | 2.5 hrs | 1.22 | 1.7 hrs | 0.99 |
| Webster Electric Coop | - | - | - | - | - |
| Laclede Electric Coop, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Missouri's customers in 2018; 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, 2018, 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/2018/missouri/dallas-county