County annual report · FIPS 21167
2021 Mercer County, KY Power Outage Report
In 2021, customers in Mercer County, KY went without power for an average of 2.3 hours, a total of 27K customer-hours (Kentucky average 10.4 hours). That ranks 94th worst of 119 Kentucky counties and 2109th of 2,974 nationally.
Compared with KY, the US and 2020
Coverage line is EAGLE-I's share of Kentucky customers tracked each year.
Biggest outages in Mercer 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 | October 3, 2021 08:15 | October 3, 2021 10:00 | 1h 45m | 964 | 574 |
| 2 | February 13, 2021 16:00 | February 13, 2021 22:45 | 6h 45m | 962 | 796 |
| 3 | February 11, 2021 04:00 | February 13, 2021 02:45 | 1d 22h | 863 | 9,512 |
| 4 | March 26, 2021 04:00 | March 26, 2021 06:00 | 2h | 719 | 698 |
| 5 | August 30, 2021 17:45 | August 30, 2021 21:00 | 3h 15m | 698 | 1,607 |
| 6 | December 28, 2021 13:30 | December 28, 2021 16:15 | 2h 45m | 695 | 1,594 |
| 7 | September 22, 2021 09:45 | September 22, 2021 15:30 | 5h 45m | 466 | 687 |
| 8 | January 9, 2021 03:45 | January 9, 2021 09:00 | 5h 15m | 441 | 728 |
| 9 | July 9, 2021 14:15 | July 9, 2021 15:45 | 1h 30m | 419 | 106 |
| 10 | September 6, 2021 07:00 | September 6, 2021 08:00 | 1h | 410 | 323 |
Outage episodes by size in 2021: 24 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 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 |
|---|---|---|---|---|---|
| Kentucky Utilities Co | 2021 | 3.3 hrs | 1.17 | 1.7 hrs | 0.91 |
| Blue Grass Energy Coop Corp | 2021 | 4.2 hrs | 1.49 | 2.6 hrs | 1.27 |
| Inter County Energy Coop Corp - (KY) | 2021 | 12.2 hrs | 2.60 | 1.8 hrs | 1.03 |
| Salt River Electric Coop Corp | 2021 | 2.5 hrs | 1.26 | 1.5 hrs | 0.98 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 92% of Kentucky's customers in 2021; 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, 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/kentucky/mercer-county