County annual report · FIPS 21031
2021 Butler County, KY Power Outage Report
In 2021, customers in Butler County, KY went without power for an average of 3.4 hours, a total of 23K customer-hours (Kentucky average 10.4 hours). That ranks 78th worst of 119 Kentucky counties and 1721st 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 Butler 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 | May 4, 2021 08:15 | May 4, 2021 13:00 | 4h 45m | 1,060 | 1,776 |
| 2 | November 1, 2021 18:45 | November 1, 2021 19:45 | 1h | 970 | 970 |
| 3 | October 28, 2021 12:00 | October 28, 2021 13:15 | 1h 15m | 730 | 913 |
| 4 | June 12, 2021 05:45 | June 12, 2021 06:45 | 1h | 729 | 729 |
| 5 | September 9, 2021 14:00 | September 9, 2021 14:45 | 45m | 620 | 155 |
| 6 | June 14, 2021 12:15 | June 14, 2021 13:30 | 1h 15m | 619 | 312 |
| 7 | May 5, 2021 15:00 | May 5, 2021 17:30 | 2h 30m | 618 | 495 |
| 8 | March 12, 2021 01:15 | March 12, 2021 02:30 | 1h 15m | 611 | 644 |
| 9 | March 10, 2021 14:45 | March 10, 2021 15:00 | 15m | 590 | 148 |
| 10 | December 11, 2021 04:30 | December 13, 2021 12:00 | 2d 7h | 471 | 11K |
Outage episodes by size in 2021: 22 reached 100+ customers, 1 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 Butler 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 |
|---|---|---|---|---|---|
| Pennyrile Rural Electric Coop | 2021 | 10.4 hrs | 2.63 | 2.7 hrs | 1.66 |
| Warren Rural Elec Coop Corp | 2021 | 12.5 hrs | 1.92 | 2.1 hrs | 1.30 |
| 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 ÷ 6,824 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. Butler County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Butler 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/butler-county