County annual report · FIPS 21111
2015 Jefferson County, KY Power Outage Report
In 2015, customers in Jefferson County, KY went without power for an average of 1.8 hours, a total of 719K customer-hours (Kentucky average 2.3 hours). That ranks 43rd worst of 113 Kentucky counties and 1308th of 2,484 nationally.
Compared with KY, the US
Coverage line is EAGLE-I's share of Kentucky customers tracked each year.
Biggest outages in Jefferson County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 16, 2015 11:15 | July 19, 2015 01:45 | 2d 14h | 15,233 | 132K |
| 2 | June 25, 2015 11:15 | June 28, 2015 06:15 | 2d 19h | 10,923 | 51K |
| 3 | April 9, 2015 11:30 | April 10, 2015 08:45 | 21h 15m | 9,947 | 12K |
| 4 | July 29, 2015 11:30 | July 31, 2015 18:00 | 2d 6h | 9,621 | 31K |
| 5 | August 4, 2015 18:30 | August 5, 2015 03:15 | 8h 45m | 8,675 | 20K |
| 6 | March 9, 2015 10:00 | March 10, 2015 01:00 | 15h | 7,410 | 2,347 |
| 7 | April 7, 2015 11:00 | April 8, 2015 08:00 | 21h | 4,912 | 8,838 |
| 8 | July 21, 2015 00:30 | July 23, 2015 19:00 | 2d 18h | 4,625 | 6,125 |
| 9 | December 14, 2015 07:45 | December 15, 2015 05:30 | 21h 45m | 4,582 | 17K |
| 10 | June 15, 2015 10:00 | June 16, 2015 02:15 | 16h 15m | 4,267 | 3,609 |
Outage episodes by size in 2015: 262 reached 100+ customers, 87 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 2015, 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 | 2015 | 1.8 hrs | 1.06 | 89 min | 0.98 |
| Shelby Energy Coop, Inc - (KY) | 2015 | 3.8 hrs | 1.46 | 1.8 hrs | 0.99 |
| Louisville Gas & Electric Co | 2015 | 2.0 hrs | 1.16 | 75 min | 0.96 |
| 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 2015; 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, 2015, 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/2015/kentucky/jefferson-county