County annual report · FIPS 45007
2025 Anderson County, SC Power Outage Report
In 2025, customers in Anderson County, SC went without power for an average of 5.3 hours, a total of 536K customer-hours (South Carolina average 3.0 hours). That ranks 11th worst of 46 South Carolina counties and 1428th 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 Anderson 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 7, 2025 10:15 | June 11, 2025 06:45 | 3d 20h | 15,348 | 168K |
| 2 | January 3, 2025 09:30 | January 4, 2025 03:15 | 17h 45m | 5,430 | 11K |
| 3 | June 16, 2025 10:15 | June 19, 2025 16:15 | 3d 6h | 4,433 | 33K |
| 4 | November 7, 2025 01:15 | November 8, 2025 01:15 | 1d | 4,030 | 8,632 |
| 5 | July 30, 2025 18:15 | August 1, 2025 06:30 | 1d 12h | 4,016 | 7,060 |
| 6 | January 11, 2025 00:00 | January 12, 2025 06:00 | 1d 6h | 4,005 | 32K |
| 7 | October 23, 2025 12:15 | October 24, 2025 06:00 | 17h 45m | 3,785 | 4,187 |
| 8 | April 30, 2025 07:15 | May 5, 2025 17:45 | 5d 10h | 3,353 | 16K |
| 9 | June 25, 2025 20:45 | June 26, 2025 13:45 | 17h | 2,968 | 19K |
| 10 | September 30, 2025 05:00 | September 30, 2025 05:45 | 45m | 2,697 | 1,383 |
Outage episodes by size in 2025: 117 reached 100+ customers, 37 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 Anderson 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 |
| Laurens Electric Coop, Inc | 2024 | 138.5 hrs | 2.84 | 1.6 hrs | 1.14 |
| Blue Ridge Electric Coop Inc - (SC) | 2024 | 88.2 hrs | - | 3.2 hrs | - |
| Duke Energy | - | - | - | - | - |
| Little River Electric Coop Inc | - | - | - | - | - |
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 ÷ 101,520 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. Anderson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Anderson 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/anderson-county