County annual report · FIPS 21111
2019 Jefferson County, KY Power Outage Report
In 2019, customers in Jefferson County, KY went without power for an average of 2.3 hours, a total of 914K customer-hours (Kentucky average 3.3 hours). That ranks 79th worst of 120 Kentucky counties and 1908th of 2,945 nationally.
Compared with KY, the US and 2018
Coverage line is EAGLE-I's share of Kentucky customers tracked each year.
Biggest outages in Jefferson County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 13, 2019 11:15 | September 14, 2019 05:30 | 18h 15m | 65,587 | 85K |
| 2 | February 21, 2019 23:30 | March 17, 2019 07:30 | 23d 8h | 20,413 | 221K |
| 3 | December 12, 2019 12:45 | December 13, 2019 20:30 | 1d 7h | 17,323 | 11K |
| 4 | June 30, 2019 10:45 | July 4, 2019 11:30 | 4d | 13,552 | 25K |
| 5 | June 23, 2019 16:45 | June 26, 2019 03:00 | 2d 10h | 12,473 | 85K |
| 6 | May 23, 2019 12:00 | May 24, 2019 07:15 | 19h 15m | 11,066 | 3,786 |
| 7 | October 15, 2019 13:00 | October 16, 2019 02:15 | 13h 15m | 9,417 | 4,234 |
| 8 | May 6, 2019 05:15 | May 7, 2019 05:15 | 1d | 8,782 | 3,326 |
| 9 | October 19, 2019 10:45 | October 19, 2019 19:15 | 8h 30m | 8,335 | 5,813 |
| 10 | June 6, 2019 10:45 | June 7, 2019 00:30 | 13h 45m | 8,057 | 4,839 |
Outage episodes by size in 2019: 217 reached 100+ customers, 76 reached 1,000+ customers, 6 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 2019, 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 | 2018 | 5.6 hrs | 1.69 | 1.6 hrs | 0.98 |
| Shelby Energy Coop, Inc - (KY) | 2018 | 6.5 hrs | 2.38 | 2.0 hrs | 1.25 |
| Louisville Gas & Electric Co | 2018 | 8.2 hrs | 1.48 | 86 min | 0.88 |
| 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 92% of Kentucky's customers in 2019; 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, 2019, 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/2019/kentucky/jefferson-county