County annual report · FIPS 29133
2018 Mississippi County, MO Power Outage Report
In 2018, customers in Mississippi County, MO went without power for an average of 0.7 hours, a total of 4,226 customer-hours (Missouri average 1.7 hours). That ranks 64th worst of 96 Missouri counties and 2427th 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 Mississippi 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 | January 8, 2018 07:00 | January 8, 2018 09:00 | 2h | 726 | 1,452 |
| 2 | January 9, 2018 15:00 | January 9, 2018 16:00 | 1h | 380 | 287 |
| 3 | August 18, 2018 06:45 | August 18, 2018 11:00 | 4h 15m | 275 | 633 |
| 4 | April 4, 2018 00:00 | April 4, 2018 06:00 | 6h | 162 | 342 |
| 5 | June 29, 2018 12:30 | June 29, 2018 20:30 | 8h | 114 | 38 |
| 6 | May 17, 2018 23:00 | May 18, 2018 01:30 | 2h 30m | 112 | 237 |
| 7 | October 11, 2018 18:30 | October 11, 2018 23:00 | 4h 30m | 46 | 74 |
| 8 | November 29, 2018 21:45 | November 29, 2018 23:15 | 1h 30m | 45 | 14 |
| 9 | August 18, 2018 13:15 | August 18, 2018 13:30 | 15m | 37 | 9 |
| 10 | September 8, 2018 09:45 | September 8, 2018 12:00 | 2h 15m | 32 | 57 |
Outage episodes by size in 2018: 6 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 Mississippi 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 |
|---|---|---|---|---|---|
| Union Electric Co - (MO) | 2018 | 2.3 hrs | 0.85 | 86 min | 0.72 |
| Ameren | - | - | - | - | - |
| SEMO Electric Cooperative | - | - | - | - | - |
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 ÷ 5,838 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. Mississippi County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mississippi 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/mississippi-county