County annual report · FIPS 29127
2021 Marion County, MO Power Outage Report
In 2021, customers in Marion County, MO went without power for an average of 2.7 hours, a total of 35K customer-hours (Missouri average 4.5 hours). That ranks 74th worst of 115 Missouri counties and 1970th of 2,974 nationally.
Compared with MO, the US and 2020
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Marion County, 2021
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 1, 2021 13:45 | January 3, 2021 02:30 | 1d 12h | 1,723 | 12K |
| 2 | July 10, 2021 02:30 | July 15, 2021 19:15 | 5d 16h | 777 | 7,676 |
| 3 | January 4, 2021 16:00 | January 5, 2021 04:30 | 12h 30m | 717 | 1,766 |
| 4 | August 12, 2021 21:30 | August 14, 2021 04:30 | 1d 7h | 688 | 3,194 |
| 5 | May 5, 2021 18:00 | May 5, 2021 20:00 | 2h | 628 | 1,032 |
| 6 | March 23, 2021 18:00 | March 23, 2021 19:30 | 1h 30m | 428 | 586 |
| 7 | September 29, 2021 13:45 | September 29, 2021 14:00 | 15m | 371 | 93 |
| 8 | November 3, 2021 14:00 | November 3, 2021 19:00 | 5h | 369 | 191 |
| 9 | March 23, 2021 20:30 | March 23, 2021 23:45 | 3h 15m | 354 | 199 |
| 10 | March 9, 2021 20:45 | March 9, 2021 22:00 | 1h 15m | 330 | 353 |
Outage episodes by size in 2021: 22 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 Marion County reported on EIA Form 861 for 2021, 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) | 2021 | 4.9 hrs | 1.02 | 1.5 hrs | 0.69 |
| City of Hannibal - (MO) | 2021 | 80 min | 0.88 | 54 min | 0.72 |
| Lewis County Rural E C A | - | - | - | - | - |
| Ralls County Electric Coop | - | - | - | - | - |
| Missouri Rural Electric Coop | - | - | - | - | - |
| City of Monroe City - (MO) | - | - | - | - | - |
| City of Palmyra - (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 95% of Missouri's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 13,104 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. Marion County has data for 2015–2017, 2019–2025.
Cite this report
MassOutage (massoutage.com), Marion County, MO annual power outage report, 2021, 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/2021/missouri/marion-county