County annual report · FIPS 29123
2018 Madison County, MO Power Outage Report
In 2018, customers in Madison County, MO went without power for an average of 0.8 hours, a total of 6,719 customer-hours (Missouri average 1.7 hours). That ranks 62nd worst of 96 Missouri counties and 2395th 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 Madison 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 | May 29, 2018 23:30 | May 30, 2018 02:45 | 3h 15m | 1,061 | 1,281 |
| 2 | May 20, 2018 04:00 | May 20, 2018 05:15 | 1h 15m | 711 | 534 |
| 3 | July 2, 2018 08:00 | July 2, 2018 11:00 | 3h | 586 | 1,030 |
| 4 | February 21, 2018 00:30 | February 21, 2018 02:45 | 2h 15m | 324 | 415 |
| 5 | September 26, 2018 05:00 | September 26, 2018 10:30 | 5h 30m | 227 | 1,138 |
| 6 | July 3, 2018 19:45 | July 4, 2018 00:30 | 4h 45m | 142 | 469 |
| 7 | May 14, 2018 19:00 | May 14, 2018 20:45 | 1h 45m | 115 | 123 |
| 8 | May 7, 2018 14:45 | May 7, 2018 18:30 | 3h 45m | 100 | 98 |
| 9 | September 21, 2018 20:30 | September 22, 2018 00:00 | 3h 30m | 76 | 173 |
| 10 | January 22, 2018 04:30 | January 22, 2018 08:30 | 4h | 74 | 296 |
Outage episodes by size in 2018: 8 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 Madison 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 |
| Black River Electric Coop - (MO) | 2018 | 6.7 hrs | - | 6.7 hrs | - |
| City of Fredericktown - (MO) | - | - | - | - | - |
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 ÷ 8,568 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. Madison County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Madison 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/madison-county