County annual report · FIPS 21085
2021 Grayson County, KY Power Outage Report
In 2021, customers in Grayson County, KY went without power for an average of 3.5 hours, a total of 50K customer-hours (Kentucky average 10.4 hours). That ranks 76th worst of 119 Kentucky counties and 1672nd 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 Grayson 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 | February 19, 2021 11:30 | February 19, 2021 17:45 | 6h 15m | 7,095 | 14K |
| 2 | March 13, 2021 17:00 | March 15, 2021 11:15 | 1d 18h | 1,395 | 3,258 |
| 3 | August 14, 2021 18:15 | August 15, 2021 09:30 | 15h 15m | 790 | 1,398 |
| 4 | November 9, 2021 14:00 | November 9, 2021 17:15 | 3h 15m | 745 | 1,704 |
| 5 | March 26, 2021 02:30 | March 26, 2021 06:45 | 4h 15m | 579 | 2,352 |
| 6 | April 11, 2021 21:00 | April 11, 2021 23:45 | 2h 45m | 566 | 572 |
| 7 | May 29, 2021 10:00 | May 29, 2021 14:15 | 4h 15m | 564 | 1,510 |
| 8 | November 2, 2021 13:00 | November 2, 2021 13:30 | 30m | 535 | 267 |
| 9 | January 15, 2021 14:30 | January 15, 2021 18:30 | 4h | 532 | 558 |
| 10 | March 28, 2021 07:45 | March 28, 2021 09:15 | 1h 30m | 525 | 788 |
Outage episodes by size in 2021: 43 reached 100+ customers, 2 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 Grayson 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 |
| Farmers Rural Electric Coop Corp - (KY) | 2021 | 2.5 hrs | 1.17 | 1.7 hrs | 0.94 |
| Nolin Rural Electric Coop Corp | 2021 | 42 min | 0.41 | 29 min | 0.30 |
| Warren Rural Elec Coop Corp | 2021 | 12.5 hrs | 1.92 | 2.1 hrs | 1.30 |
| Meade County Rural E C C | 2021 | 3.2 hrs | 1.45 | 87 min | 0.89 |
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 ÷ 14,255 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. Grayson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grayson 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/grayson-county