County annual report · FIPS 45029
2017 Colleton County, SC Power Outage Report
In 2017, customers in Colleton County, SC went without power for an average of 14.2 hours, a total of 289K customer-hours (South Carolina average 4.4 hours). That ranks 3rd worst of 46 South Carolina counties and 389th 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 Colleton 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 | September 11, 2017 07:15 | September 14, 2017 22:15 | 3d 15h | 11,277 | 205K |
| 2 | October 26, 2017 10:45 | October 26, 2017 15:00 | 4h 15m | 3,404 | 4,521 |
| 3 | January 23, 2017 19:15 | January 23, 2017 20:15 | 1h | 2,587 | 1,942 |
| 4 | May 24, 2017 14:15 | May 24, 2017 23:00 | 8h 45m | 2,551 | 1,910 |
| 5 | October 23, 2017 21:45 | October 24, 2017 11:30 | 13h 45m | 2,479 | 8,000 |
| 6 | August 27, 2017 19:15 | August 28, 2017 07:45 | 12h 30m | 2,391 | 1,550 |
| 7 | July 5, 2017 13:00 | July 5, 2017 18:45 | 5h 45m | 1,760 | 2,263 |
| 8 | May 5, 2017 00:00 | May 6, 2017 14:00 | 1d 14h | 1,297 | 15K |
| 9 | January 21, 2017 21:15 | January 22, 2017 01:00 | 3h 45m | 1,018 | 1,071 |
| 10 | August 11, 2017 22:15 | August 11, 2017 23:45 | 1h 30m | 1,016 | 584 |
Outage episodes by size in 2017: 78 reached 100+ customers, 10 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 Colleton 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 |
| Edisto Electric Coop, Inc | 2017 | 3.4 hrs | - | 50 min | - |
| Coastal Electric Coop, Inc | 2017 | 7.1 hrs | 2.78 | 3.5 hrs | 2.01 |
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 ÷ 20,355 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. Colleton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Colleton 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/colleton-county