County annual report · FIPS 45073
2025 Oconee County, SC Power Outage Report
In 2025, customers in Oconee County, SC went without power for an average of 6.9 hours, a total of 277K customer-hours (South Carolina average 3.0 hours). That ranks 5th worst of 46 South Carolina counties and 1168th of 3,000 nationally.
Compared with SC, the US and 2024
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Oconee County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 15, 2025 12:00 | June 15, 2025 14:15 | 2h 15m | 13,276 | 5,150 |
| 2 | June 7, 2025 21:30 | June 9, 2025 21:30 | 2d | 8,685 | 62K |
| 3 | August 26, 2025 03:30 | August 26, 2025 22:00 | 18h 30m | 4,965 | 19K |
| 4 | August 5, 2025 00:30 | August 6, 2025 05:15 | 1d 4h | 4,806 | 7,686 |
| 5 | February 16, 2025 09:00 | February 17, 2025 01:45 | 16h 45m | 3,526 | 2,866 |
| 6 | June 25, 2025 09:45 | June 25, 2025 12:15 | 2h 30m | 2,841 | 951 |
| 7 | September 6, 2025 19:30 | September 7, 2025 11:45 | 16h 15m | 2,566 | 4,280 |
| 8 | August 15, 2025 13:15 | August 16, 2025 20:45 | 1d 7h | 2,313 | 13K |
| 9 | July 31, 2025 11:45 | August 1, 2025 17:00 | 1d 5h | 2,268 | 7,417 |
| 10 | April 24, 2025 11:15 | April 24, 2025 23:15 | 12h | 1,966 | 2,960 |
Outage episodes by size in 2025: 120 reached 100+ customers, 28 reached 1,000+ customers, 1 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 2025, 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 | 2024 | 78.6 hrs | 2.50 | 2.9 hrs | 1.26 |
| Haywood Electric Member Corp | 2024 | 160.2 hrs | 6.66 | 9.4 hrs | 3.60 |
| Blue Ridge Electric Coop Inc - (SC) | 2024 | 88.2 hrs | - | 3.2 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 n/a of South Carolina's customers in 2025; 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, 2025, 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/2025/south-carolina/oconee-county