County annual report · FIPS 45017
2024 Calhoun County, SC Power Outage Report
In 2024, customers in Calhoun County, SC went without power for an average of 13.9 hours, a total of 128K customer-hours (South Carolina average 50.1 hours). That ranks 27th worst of 46 South Carolina counties and 699th of 2,990 nationally.
Compared with SC, the US and 2023
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Calhoun County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 27, 2024 04:45 | October 1, 2024 15:45 | 4d 11h | 5,126 | 99K |
| 2 | August 3, 2024 21:15 | August 4, 2024 05:15 | 8h | 2,255 | 2,262 |
| 3 | July 15, 2024 19:00 | July 16, 2024 04:00 | 9h | 1,272 | 1,550 |
| 4 | July 16, 2024 18:30 | July 16, 2024 22:45 | 4h 15m | 804 | 1,641 |
| 5 | June 5, 2024 21:45 | June 6, 2024 01:45 | 4h | 801 | 1,124 |
| 6 | January 22, 2024 15:30 | January 22, 2024 16:00 | 30m | 682 | 341 |
| 7 | January 15, 2024 13:30 | January 15, 2024 17:00 | 3h 30m | 681 | 351 |
| 8 | March 11, 2024 16:15 | March 11, 2024 17:15 | 1h | 659 | 332 |
| 9 | January 9, 2024 15:15 | January 10, 2024 02:00 | 10h 45m | 482 | 1,154 |
| 10 | June 30, 2024 23:15 | July 1, 2024 05:30 | 6h 15m | 461 | 628 |
Outage episodes by size in 2024: 30 reached 100+ customers, 3 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 Calhoun County reported on EIA Form 861 for 2024, 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 |
|---|---|---|---|---|---|
| Dominion Energy South Carolina, Inc | 2024 | 31.8 hrs | 2.52 | 81 min | 1.19 |
| Aiken Electric Coop Inc | 2024 | 132.4 hrs | - | 1.6 hrs | - |
| Tri-County Electric Coop, Inc (SC) | 2024 | 17.4 hrs | 4.09 | 2.9 hrs | 2.33 |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,147 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. Calhoun County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Calhoun County, SC annual power outage report, 2024, 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/2024/south-carolina/calhoun-county