County annual report · FIPS 29129
2025 Mercer County, MO Power Outage Report
In 2025, customers in Mercer County, MO went without power for an average of 0.0 hours, a total of 45 customer-hours (Missouri average 8.9 hours). That ranks 115th worst of 115 Missouri counties and 2965th of 3,000 nationally.
Compared with MO, the US and 2024
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Mercer County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 27, 2025 12:15 | March 27, 2025 12:30 | 15m | 61 | 15 |
| 2 | April 21, 2025 13:00 | April 21, 2025 13:30 | 30m | 4 | 2 |
| 3 | April 22, 2025 16:30 | April 22, 2025 18:15 | 1h 45m | 4 | 7 |
| 4 | May 19, 2025 22:15 | May 19, 2025 23:30 | 1h 15m | 4 | 5 |
| 5 | August 16, 2025 13:30 | August 16, 2025 15:00 | 1h 30m | 4 | 6 |
| 6 | September 11, 2025 18:45 | September 11, 2025 19:15 | 30m | 4 | 2 |
| 7 | October 18, 2025 07:15 | October 18, 2025 07:45 | 30m | 4 | 2 |
| 8 | October 18, 2025 10:00 | October 18, 2025 11:00 | 1h | 4 | 4 |
| 9 | November 13, 2025 20:45 | November 13, 2025 21:00 | 15m | 4 | 1 |
| 10 | December 9, 2025 18:15 | December 9, 2025 18:30 | 15m | 4 | 1 |
Outage episodes by size in 2025: 0 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 Mercer County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Evergy Metro | 2024 | 6.0 hrs | 1.52 | 83 min | 0.93 |
| Evergy Kansas Central, Inc | 2024 | 5.3 hrs | 1.65 | 1.7 hrs | 1.05 |
| Evergy Missouri West | 2024 | 5.1 hrs | 1.85 | 2.0 hrs | 1.25 |
| Grundy 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 n/a of Missouri's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,937 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. Mercer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mercer County, MO annual power outage report, 2025, 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/2025/missouri/mercer-county