County annual report · FIPS 45017
2017 Calhoun County, SC Power Outage Report
In 2017, customers in Calhoun County, SC went without power for an average of 0.9 hours, a total of 8,125 customer-hours (South Carolina average 4.4 hours). That ranks 44th worst of 46 South Carolina counties and 2098th of 2,786 nationally.
Compared with SC, the US and 2016
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Calhoun County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 16, 2017 16:00 | May 16, 2017 16:15 | 15m | 1,954 | 489 |
| 2 | April 3, 2017 21:30 | April 3, 2017 22:00 | 30m | 623 | 156 |
| 3 | December 14, 2017 13:30 | December 14, 2017 17:00 | 3h 30m | 443 | 568 |
| 4 | December 7, 2017 17:30 | December 7, 2017 18:15 | 45m | 377 | 209 |
| 5 | September 11, 2017 13:45 | September 13, 2017 05:30 | 1d 15h | 349 | 1,523 |
| 6 | September 18, 2017 17:30 | September 18, 2017 21:30 | 4h | 298 | 227 |
| 7 | October 11, 2017 13:30 | October 11, 2017 18:30 | 5h | 298 | 742 |
| 8 | May 24, 2017 17:00 | May 25, 2017 01:45 | 8h 45m | 297 | 850 |
| 9 | October 15, 2017 14:15 | October 15, 2017 17:15 | 3h | 187 | 274 |
| 10 | September 17, 2017 12:45 | September 17, 2017 13:45 | 1h | 157 | 88 |
Outage episodes by size in 2017: 12 reached 100+ customers, 1 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 2017, 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 | 2017 | 5.5 hrs | 1.85 | 82 min | 1.14 |
| Aiken Electric Coop Inc | 2017 | 5.6 hrs | - | 2.2 hrs | - |
| Tri-County Electric Coop, Inc (SC) | 2017 | 5.6 hrs | 3.43 | 2.9 hrs | 2.34 |
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 2017; 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, 2017, 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/2017/south-carolina/calhoun-county