County annual report · FIPS 45069
2023 Marlboro County, SC Power Outage Report
In 2023, customers in Marlboro County, SC went without power for an average of 0.9 hours, a total of 13K customer-hours (South Carolina average 2.7 hours). That ranks 45th worst of 46 South Carolina counties and 2713th of 2,977 nationally.
Compared with SC, the US and 2022
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Marlboro County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 9, 2023 22:00 | January 10, 2023 00:30 | 2h 30m | 1,002 | 2,266 |
| 2 | December 16, 2023 07:15 | December 16, 2023 13:00 | 5h 45m | 820 | 2,160 |
| 3 | August 30, 2023 00:15 | August 30, 2023 04:45 | 4h 30m | 477 | 504 |
| 4 | December 17, 2023 19:15 | December 18, 2023 05:30 | 10h 15m | 455 | 1,144 |
| 5 | July 28, 2023 20:15 | July 28, 2023 21:45 | 1h 30m | 312 | 311 |
| 6 | July 7, 2023 21:30 | July 8, 2023 01:00 | 3h 30m | 239 | 376 |
| 7 | February 18, 2023 01:30 | February 18, 2023 05:00 | 3h 30m | 164 | 443 |
| 8 | August 26, 2023 19:30 | August 26, 2023 21:15 | 1h 45m | 163 | 204 |
| 9 | June 21, 2023 01:45 | June 21, 2023 04:15 | 2h 30m | 153 | 345 |
| 10 | July 22, 2023 19:30 | July 22, 2023 23:30 | 4h | 149 | 373 |
Outage episodes by size in 2023: 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 Marlboro County reported on EIA Form 861 for 2023, 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) | 2023 | 3.7 hrs | 1.47 | 2.4 hrs | 1.22 |
| MPD Electric Cooperative | 2023 | 4.3 hrs | 2.02 | 2.1 hrs | 1.22 |
| Duke Energy | - | - | - | - | - |
| 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 n/a of South Carolina's customers in 2023; 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, 2023, 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/2023/south-carolina/marlboro-county