County annual report · FIPS 45067
2023 Marion County, SC Power Outage Report
In 2023, customers in Marion County, SC went without power for an average of 4.7 hours, a total of 40K customer-hours (South Carolina average 2.7 hours). That ranks 11th worst of 46 South Carolina counties and 1536th 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 Marion 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 | July 2, 2023 03:15 | July 2, 2023 04:30 | 1h 15m | 1,487 | 744 |
| 2 | July 4, 2023 23:45 | July 5, 2023 03:45 | 4h | 1,441 | 1,314 |
| 3 | August 30, 2023 21:30 | August 31, 2023 23:30 | 1d 2h | 1,414 | 11K |
| 4 | November 11, 2023 12:15 | November 11, 2023 14:45 | 2h 30m | 1,198 | 938 |
| 5 | February 12, 2023 10:00 | February 12, 2023 17:30 | 7h 30m | 879 | 3,298 |
| 6 | December 11, 2023 05:15 | December 11, 2023 13:00 | 7h 45m | 879 | 2,613 |
| 7 | April 30, 2023 18:15 | May 1, 2023 01:45 | 7h 30m | 796 | 2,148 |
| 8 | March 1, 2023 12:30 | March 1, 2023 13:15 | 45m | 793 | 199 |
| 9 | July 14, 2023 20:45 | July 15, 2023 07:00 | 10h 15m | 607 | 2,470 |
| 10 | June 11, 2023 17:00 | June 11, 2023 21:30 | 4h 30m | 517 | 1,073 |
Outage episodes by size in 2023: 28 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 Marion 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 | - | - | - | - | - |
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 ÷ 8,497 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. Marion County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marion 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/marion-county