County annual report · FIPS 21065
2021 Estill County, KY Power Outage Report
In 2021, customers in Estill County, KY went without power for an average of 16.2 hours, a total of 117K customer-hours (Kentucky average 10.4 hours). That ranks 35th worst of 119 Kentucky counties and 526th 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 Estill 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 14, 2021 22:00 | November 15, 2021 21:00 | 23h | 3,146 | 1,682 |
| 2 | February 15, 2021 22:15 | February 26, 2021 00:45 | 10d 2h | 1,923 | 69K |
| 3 | April 26, 2021 19:15 | April 26, 2021 22:45 | 3h 30m | 1,198 | 2,693 |
| 4 | July 30, 2021 07:00 | August 5, 2021 20:45 | 6d 13h | 906 | 3,723 |
| 5 | March 1, 2021 22:30 | March 11, 2021 13:30 | 9d 15h | 442 | 22K |
| 6 | March 12, 2021 18:00 | March 12, 2021 20:15 | 2h 15m | 438 | 298 |
| 7 | September 15, 2021 19:30 | September 15, 2021 23:00 | 3h 30m | 381 | 934 |
| 8 | July 9, 2021 05:00 | July 9, 2021 08:15 | 3h 15m | 296 | 338 |
| 9 | June 11, 2021 11:15 | June 11, 2021 21:15 | 10h | 287 | 1,135 |
| 10 | February 11, 2021 09:00 | February 13, 2021 00:15 | 1d 15h | 279 | 782 |
Outage episodes by size in 2021: 19 reached 100+ customers, 3 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 Estill 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 |
| Jackson Energy Coop Corp - (KY) | 2021 | 45.5 hrs | 3.66 | 4.0 hrs | 2.03 |
| Clark Energy Coop Inc - (KY) | 2021 | 43.8 hrs | 3.83 | 3.7 hrs | 1.82 |
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 ÷ 7,224 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. Estill County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Estill 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/estill-county