County annual report · FIPS 45027
2020 Clarendon County, SC Power Outage Report
In 2020, customers in Clarendon County, SC went without power for an average of 2.1 hours, a total of 38K customer-hours (South Carolina average 5.7 hours). That ranks 37th worst of 46 South Carolina counties and 2188th 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 Clarendon 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 | August 13, 2020 20:15 | August 14, 2020 03:45 | 7h 30m | 2,099 | 3,095 |
| 2 | February 6, 2020 06:00 | February 6, 2020 07:00 | 1h | 1,756 | 1,755 |
| 3 | January 30, 2020 21:30 | January 31, 2020 00:30 | 3h | 1,746 | 643 |
| 4 | February 7, 2020 10:00 | February 7, 2020 22:00 | 12h | 1,519 | 3,327 |
| 5 | January 14, 2020 22:15 | January 14, 2020 22:45 | 30m | 1,018 | 382 |
| 6 | December 24, 2020 22:45 | December 25, 2020 13:30 | 14h 45m | 907 | 4,729 |
| 7 | November 2, 2020 10:45 | November 2, 2020 12:00 | 1h 15m | 867 | 434 |
| 8 | April 6, 2020 17:15 | April 14, 2020 00:30 | 7d 7h | 740 | 2,558 |
| 9 | February 6, 2020 14:45 | February 6, 2020 20:15 | 5h 30m | 661 | 639 |
| 10 | January 27, 2020 15:00 | January 27, 2020 16:15 | 1h 15m | 514 | 132 |
Outage episodes by size in 2020: 39 reached 100+ customers, 5 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 Clarendon 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 Progress - (NC) | 2020 | 5.2 hrs | 1.81 | 2.3 hrs | 1.37 |
| Santee Electric Coop, Inc | 2020 | 4.3 hrs | - | 2.3 hrs | - |
| Duke Energy | - | - | - | - | - |
| Black River Electric Coop, Inc - (SC) | - | - | - | - | - |
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 ÷ 17,809 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. Clarendon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clarendon 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/clarendon-county