County annual report · FIPS 21167
2025 Mercer County, KY Power Outage Report
In 2025, customers in Mercer County, KY went without power for an average of 3.5 hours, a total of 41K customer-hours (Kentucky average 7.0 hours). That ranks 100th worst of 120 Kentucky counties and 1898th of 3,000 nationally.
Compared with KY, the US and 2024
Coverage line is EAGLE-I's share of Kentucky 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 | November 5, 2025 15:30 | November 5, 2025 22:45 | 7h 15m | 3,744 | 1,588 |
| 2 | November 12, 2025 19:45 | November 12, 2025 20:00 | 15m | 2,162 | 541 |
| 3 | December 3, 2025 16:45 | December 3, 2025 18:45 | 2h | 698 | 238 |
| 4 | January 6, 2025 00:15 | January 8, 2025 22:00 | 2d 21h | 636 | 11K |
| 5 | April 28, 2025 18:15 | April 28, 2025 19:00 | 45m | 435 | 326 |
| 6 | June 13, 2025 05:15 | June 13, 2025 07:45 | 2h 30m | 425 | 850 |
| 7 | January 22, 2025 13:45 | January 22, 2025 16:15 | 2h 30m | 313 | 331 |
| 8 | September 24, 2025 12:45 | September 24, 2025 15:00 | 2h 15m | 274 | 616 |
| 9 | October 12, 2025 13:30 | October 12, 2025 15:15 | 1h 45m | 274 | 393 |
| 10 | May 30, 2025 11:15 | May 30, 2025 23:00 | 11h 45m | 255 | 597 |
Outage episodes by size in 2025: 21 reached 100+ customers, 2 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 |
|---|---|---|---|---|---|
| Kentucky Utilities Co | 2024 | 21.9 hrs | 1.97 | 1.9 hrs | 1.03 |
| Blue Grass Energy Coop Corp | 2024 | 9.9 hrs | 2.23 | 3.0 hrs | 1.52 |
| Inter County Energy Coop Corp - (KY) | 2024 | 4.6 hrs | 1.91 | 1.9 hrs | 1.17 |
| Salt River Electric Coop Corp | 2024 | 6.0 hrs | 2.60 | 2.2 hrs | 1.60 |
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 Kentucky's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 11,645 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, KY 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/kentucky/mercer-county