County annual report · FIPS 21211
2021 Shelby County, KY Power Outage Report
In 2021, customers in Shelby County, KY went without power for an average of 1.7 hours, a total of 42K customer-hours (Kentucky average 10.4 hours). That ranks 104th worst of 119 Kentucky counties and 2344th 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 Shelby 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 | November 30, 2021 21:00 | November 30, 2021 21:45 | 45m | 5,076 | 1,271 |
| 2 | June 23, 2021 12:15 | June 23, 2021 22:15 | 10h | 3,135 | 829 |
| 3 | June 21, 2021 13:45 | June 21, 2021 18:15 | 4h 30m | 2,092 | 537 |
| 4 | October 19, 2021 14:45 | October 19, 2021 18:30 | 3h 45m | 1,326 | 399 |
| 5 | July 9, 2021 00:00 | July 9, 2021 02:45 | 2h 45m | 1,276 | 1,215 |
| 6 | August 24, 2021 03:45 | August 24, 2021 07:15 | 3h 30m | 1,269 | 1,371 |
| 7 | July 18, 2021 17:00 | July 18, 2021 23:15 | 6h 15m | 998 | 738 |
| 8 | August 8, 2021 13:45 | August 8, 2021 16:00 | 2h 15m | 998 | 996 |
| 9 | May 3, 2021 14:00 | May 3, 2021 16:15 | 2h 15m | 975 | 2,194 |
| 10 | June 9, 2021 02:30 | June 9, 2021 03:30 | 1h | 919 | 919 |
Outage episodes by size in 2021: 36 reached 100+ customers, 6 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 Shelby 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 |
| Salt River Electric Coop Corp | 2021 | 2.5 hrs | 1.26 | 1.5 hrs | 0.98 |
| Shelby Energy Coop, Inc - (KY) | 2021 | 2.0 hrs | 1.00 | 2.0 hrs | 1.00 |
| Louisville Gas & Electric Co | 2021 | 1.7 hrs | 0.95 | 79 min | 0.89 |
| City of Frankfort - (KY) | 2021 | 25 min | 0.26 | 10 min | 0.13 |
| Kentucky (statewide) | - | - | - | - | - |
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 ÷ 23,928 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. Shelby County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Shelby 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/shelby-county