County annual report · FIPS 45069
2020 Marlboro County, SC Power Outage Report
In 2020, customers in Marlboro County, SC went without power for an average of 3.3 hours, a total of 49K customer-hours (South Carolina average 5.7 hours). That ranks 29th worst of 46 South Carolina counties and 1792nd 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 Marlboro 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 13, 2020 12:45 | April 15, 2020 02:15 | 1d 13h | 3,518 | 25K |
| 2 | June 23, 2020 01:45 | June 23, 2020 06:15 | 4h 30m | 1,401 | 3,465 |
| 3 | June 23, 2020 12:15 | June 23, 2020 16:00 | 3h 45m | 1,370 | 3,086 |
| 4 | June 2, 2020 23:00 | June 3, 2020 02:15 | 3h 15m | 1,025 | 3,331 |
| 5 | July 13, 2020 00:00 | July 13, 2020 03:30 | 3h 30m | 674 | 2,174 |
| 6 | May 22, 2020 22:00 | May 23, 2020 13:45 | 15h 45m | 562 | 1,745 |
| 7 | October 8, 2020 02:30 | October 8, 2020 05:15 | 2h 45m | 473 | 1,119 |
| 8 | June 9, 2020 18:00 | June 9, 2020 19:45 | 1h 45m | 414 | 470 |
| 9 | July 31, 2020 06:30 | July 31, 2020 07:30 | 1h | 412 | 309 |
| 10 | October 29, 2020 13:15 | October 29, 2020 18:45 | 5h 30m | 411 | 723 |
Outage episodes by size in 2020: 18 reached 100+ customers, 4 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 Marlboro 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 |
| Duke Energy | - | - | - | - | - |
| MPD Electric Cooperative | - | - | - | - | - |
| City of Bennettsville - (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 ÷ 14,959 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. Marlboro County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marlboro 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/marlboro-county