County annual report · FIPS 45021
2021 Cherokee County, SC Power Outage Report
In 2021, customers in Cherokee County, SC went without power for an average of 0.9 hours, a total of 36K customer-hours (South Carolina average 2.1 hours). That ranks 44th worst of 46 South Carolina counties and 2697th of 2,974 nationally.
Compared with SC, the US and 2020
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Cherokee 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 | August 14, 2021 21:15 | August 15, 2021 05:00 | 7h 45m | 2,542 | 7,760 |
| 2 | August 7, 2021 20:15 | August 8, 2021 06:45 | 10h 30m | 1,916 | 2,774 |
| 3 | December 30, 2021 16:45 | December 30, 2021 18:00 | 1h 15m | 935 | 854 |
| 4 | October 27, 2021 15:45 | October 27, 2021 17:00 | 1h 15m | 536 | 269 |
| 5 | February 13, 2021 00:15 | February 13, 2021 03:45 | 3h 30m | 522 | 406 |
| 6 | July 26, 2021 19:15 | July 27, 2021 05:00 | 9h 45m | 508 | 983 |
| 7 | October 29, 2021 06:00 | October 29, 2021 08:45 | 2h 45m | 503 | 1,383 |
| 8 | December 27, 2021 04:00 | December 27, 2021 15:00 | 11h | 462 | 2,168 |
| 9 | March 29, 2021 01:30 | March 29, 2021 03:15 | 1h 45m | 349 | 463 |
| 10 | June 7, 2021 17:30 | June 8, 2021 05:15 | 11h 45m | 340 | 282 |
Outage episodes by size in 2021: 26 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 Cherokee 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 |
|---|---|---|---|---|---|
| Duke Energy Carolinas, LLC | 2021 | 3.5 hrs | 1.20 | 2.5 hrs | 1.10 |
| York Electric Coop Inc | 2021 | 76 min | 0.75 | 67 min | 0.66 |
| Duke Energy | - | - | - | - | - |
| Broad River Electric Coop, Inc | - | - | - | - | - |
| Lockhart Power Co | - | - | - | - | - |
| City of Gaffney - (SC) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of South Carolina's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 39,741 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. Cherokee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cherokee County, SC 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/south-carolina/cherokee-county