County annual report · FIPS 45067
2025 Marion County, SC Power Outage Report
In 2025, customers in Marion County, SC went without power for an average of 3.7 hours, a total of 31K customer-hours (South Carolina average 3.0 hours). That ranks 17th worst of 46 South Carolina counties and 1848th of 3,000 nationally.
Compared with SC, the US and 2024
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Marion County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 8, 2025 17:15 | June 9, 2025 02:15 | 9h | 1,510 | 4,626 |
| 2 | July 21, 2025 22:00 | July 22, 2025 05:45 | 7h 45m | 1,398 | 1,769 |
| 3 | June 15, 2025 20:30 | June 16, 2025 02:00 | 5h 30m | 778 | 1,380 |
| 4 | June 16, 2025 12:30 | June 16, 2025 12:45 | 15m | 778 | 195 |
| 5 | October 13, 2025 01:45 | October 13, 2025 15:00 | 13h 15m | 724 | 1,660 |
| 6 | July 18, 2025 09:45 | July 18, 2025 11:45 | 2h | 607 | 153 |
| 7 | April 30, 2025 14:30 | April 30, 2025 20:30 | 6h | 542 | 2,628 |
| 8 | November 12, 2025 12:30 | November 12, 2025 19:15 | 6h 45m | 528 | 654 |
| 9 | May 15, 2025 14:15 | May 15, 2025 16:45 | 2h 30m | 479 | 957 |
| 10 | June 10, 2025 05:00 | June 10, 2025 06:15 | 1h 15m | 441 | 402 |
Outage episodes by size in 2025: 35 reached 100+ customers, 2 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 2025, 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) | 2024 | 17.2 hrs | 1.70 | 2.2 hrs | 1.22 |
| MPD Electric Cooperative | 2024 | 3.5 hrs | 1.63 | 1.5 hrs | 1.00 |
| 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 2025; 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, 2025, 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/2025/south-carolina/marion-county