County annual report · FIPS 45067
2018 Marion County, SC Power Outage Report
In 2018, customers in Marion County, SC went without power for an average of 67.3 hours, a total of 571K customer-hours (South Carolina average 5.2 hours). That ranks 1st worst of 46 South Carolina counties and 97th of 2,798 nationally.
Compared with SC, the US and 2017
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Marion County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 15, 2018 04:00 | October 8, 2018 13:45 | 23d 9h | 10,385 | 442K |
| 2 | September 13, 2018 21:00 | September 14, 2018 21:45 | 1d | 5,065 | 39K |
| 3 | June 12, 2018 08:15 | June 12, 2018 15:15 | 7h | 3,449 | 13K |
| 4 | March 1, 2018 22:15 | March 2, 2018 08:45 | 10h 30m | 2,053 | 3,071 |
| 5 | July 9, 2018 14:30 | July 9, 2018 15:15 | 45m | 1,400 | 352 |
| 6 | June 2, 2018 23:45 | June 3, 2018 09:00 | 9h 15m | 1,182 | 1,679 |
| 7 | June 25, 2018 18:15 | June 26, 2018 09:00 | 14h 45m | 926 | 1,972 |
| 8 | October 11, 2018 12:15 | October 12, 2018 22:00 | 1d 9h | 838 | 4,889 |
| 9 | March 15, 2018 16:30 | March 15, 2018 19:00 | 2h 30m | 768 | 1,920 |
| 10 | July 9, 2018 16:15 | July 9, 2018 16:30 | 15m | 600 | 150 |
Outage episodes by size in 2018: 30 reached 100+ customers, 6 reached 1,000+ customers, 1 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 2018, 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) | 2018 | 43.0 hrs | 2.71 | 2.6 hrs | 1.33 |
| Duke Energy | - | - | - | - | - |
| MPD Electric Cooperative | - | - | - | - | - |
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 2018; 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, 2018, 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/2018/south-carolina/marion-county