County annual report · FIPS 45073
2021 Oconee County, SC Power Outage Report
In 2021, customers in Oconee County, SC went without power for an average of 2.7 hours, a total of 110K customer-hours (South Carolina average 2.1 hours). That ranks 17th worst of 46 South Carolina counties and 1949th 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 Oconee 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 | January 26, 2021 04:45 | January 26, 2021 21:00 | 16h 15m | 7,523 | 7,721 |
| 2 | June 22, 2021 10:15 | July 1, 2021 08:00 | 8d 21h | 3,464 | 6,438 |
| 3 | February 5, 2021 13:45 | February 5, 2021 16:00 | 2h 15m | 3,356 | 1,680 |
| 4 | December 16, 2021 12:30 | December 16, 2021 20:15 | 7h 45m | 2,830 | 763 |
| 5 | June 20, 2021 05:15 | June 20, 2021 17:45 | 12h 30m | 2,827 | 7,204 |
| 6 | May 28, 2021 23:45 | May 29, 2021 10:15 | 10h 30m | 1,827 | 2,135 |
| 7 | July 28, 2021 04:30 | July 29, 2021 02:00 | 21h 30m | 1,820 | 2,038 |
| 8 | August 10, 2021 10:30 | August 11, 2021 23:30 | 1d 13h | 1,802 | 3,809 |
| 9 | January 29, 2021 22:30 | January 30, 2021 05:15 | 6h 45m | 1,387 | 1,027 |
| 10 | February 7, 2021 00:45 | February 7, 2021 21:45 | 21h | 1,380 | 7,607 |
Outage episodes by size in 2021: 65 reached 100+ customers, 11 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 Oconee 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 |
| Haywood Electric Member Corp | 2021 | 9.8 hrs | 3.63 | 7.7 hrs | 3.25 |
| Blue Ridge Electric Coop Inc - (SC) | 2021 | 2.3 hrs | - | 2.0 hrs | - |
| City of Seneca - (SC) | 2018 | 1.6 hrs | 0.65 | - | - |
| City of Westminster - (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 ÷ 40,425 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. Oconee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Oconee 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/oconee-county