County annual report · FIPS 45007
2020 Anderson County, SC Power Outage Report
In 2020, customers in Anderson County, SC went without power for an average of 12.4 hours, a total of 1.3M customer-hours (South Carolina average 5.7 hours). That ranks 5th worst of 46 South Carolina counties and 648th of 3,019 nationally.
Compared with SC, the US and 2019
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Anderson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 6, 2020 14:00 | April 17, 2020 04:15 | 10d 14h | 21,526 | 473K |
| 2 | October 27, 2020 13:15 | November 2, 2020 06:15 | 5d 17h | 17,529 | 353K |
| 3 | May 22, 2020 13:30 | May 24, 2020 09:00 | 1d 19h | 5,076 | 29K |
| 4 | June 28, 2020 21:45 | July 1, 2020 07:45 | 2d 10h | 4,344 | 42K |
| 5 | July 2, 2020 22:15 | July 3, 2020 13:45 | 15h 30m | 3,748 | 21K |
| 6 | January 28, 2020 10:15 | January 28, 2020 18:45 | 8h 30m | 3,408 | 10K |
| 7 | August 2, 2020 18:45 | August 3, 2020 05:15 | 10h 30m | 3,257 | 15K |
| 8 | May 18, 2020 08:45 | May 22, 2020 09:15 | 4d | 3,228 | 30K |
| 9 | June 19, 2020 04:00 | June 19, 2020 05:15 | 1h 15m | 3,169 | 2,927 |
| 10 | June 7, 2020 10:15 | June 7, 2020 11:45 | 1h 30m | 2,208 | 2,760 |
Outage episodes by size in 2020: 116 reached 100+ customers, 21 reached 1,000+ customers, 2 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 2020, 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 | 2020 | 11.2 hrs | 1.71 | 3.1 hrs | 1.18 |
| Laurens Electric Coop, Inc | 2020 | 2.9 hrs | 1.44 | 1.9 hrs | 1.19 |
| Blue Ridge Electric Coop Inc - (SC) | 2020 | 3.1 hrs | - | 2.7 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 99% of South Carolina's customers in 2020; 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, 2020, 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/2020/south-carolina/anderson-county