County annual report · FIPS 21111
2024 Jefferson County, KY Power Outage Report
In 2024, customers in Jefferson County, KY went without power for an average of 6.8 hours, a total of 2.7M customer-hours (Kentucky average 9.8 hours). That ranks 78th worst of 120 Kentucky counties and 1288th of 2,990 nationally.
Compared with KY, the US and 2023
Coverage line is EAGLE-I's share of Kentucky customers tracked each year.
Biggest outages in Jefferson County, 2024
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 26, 2024 11:45 | May 31, 2024 07:00 | 4d 19h | 54,284 | 1.7M |
| 2 | July 31, 2024 11:45 | August 4, 2024 03:30 | 3d 15h | 15,288 | 161K |
| 3 | September 26, 2024 10:45 | October 1, 2024 11:00 | 5d | 9,934 | 193K |
| 4 | May 14, 2024 11:15 | May 14, 2024 16:15 | 5h | 8,531 | 2,281 |
| 5 | January 10, 2024 11:00 | January 13, 2024 20:15 | 3d 9h | 8,273 | 9,449 |
| 6 | July 3, 2024 11:45 | July 11, 2024 01:30 | 7d 13h | 5,231 | 54K |
| 7 | March 13, 2024 10:30 | March 16, 2024 00:45 | 2d 14h | 5,065 | 19K |
| 8 | November 23, 2024 07:30 | November 24, 2024 00:45 | 17h 15m | 4,946 | 3,598 |
| 9 | March 6, 2024 09:15 | March 7, 2024 01:15 | 16h | 4,624 | 5,637 |
| 10 | June 18, 2024 11:15 | June 19, 2024 04:00 | 16h 45m | 4,060 | 3,992 |
Outage episodes by size in 2024: 204 reached 100+ customers, 50 reached 1,000+ customers, 2 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 Jefferson County reported on EIA Form 861 for 2024, 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 |
|---|---|---|---|---|---|
| Salt River Electric Coop Corp | 2024 | 6.0 hrs | 2.60 | 2.2 hrs | 1.60 |
| Shelby Energy Coop, Inc - (KY) | 2024 | 8.8 hrs | 2.00 | 3.0 hrs | 1.25 |
| Louisville Gas & Electric Co | 2024 | 7.2 hrs | 1.30 | 83 min | 0.85 |
| Kentucky (statewide) | - | - | - | - | - |
| LG&E and KU | - | - | - | - | - |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 390,033 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, KY annual power outage report, 2024, 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/2024/kentucky/jefferson-county