County annual report · FIPS 45083
2023 Spartanburg County, SC Power Outage Report
In 2023, customers in Spartanburg County, SC went without power for an average of 3.2 hours, a total of 473K customer-hours (South Carolina average 2.7 hours). That ranks 23rd worst of 46 South Carolina counties and 1890th 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 Spartanburg 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 | August 12, 2023 11:15 | August 14, 2023 07:15 | 1d 20h | 6,737 | 22K |
| 2 | June 1, 2023 03:45 | June 5, 2023 07:30 | 4d 3h | 4,965 | 37K |
| 3 | January 12, 2023 13:45 | January 14, 2023 08:00 | 1d 18h | 4,887 | 17K |
| 4 | May 7, 2023 12:00 | May 9, 2023 09:15 | 1d 21h | 4,485 | 9,322 |
| 5 | July 28, 2023 12:15 | July 31, 2023 10:45 | 2d 22h | 3,996 | 18K |
| 6 | September 7, 2023 12:00 | September 8, 2023 10:15 | 22h 15m | 3,905 | 12K |
| 7 | January 28, 2023 14:45 | January 29, 2023 04:15 | 13h 30m | 3,755 | 6,644 |
| 8 | December 3, 2023 06:00 | December 4, 2023 06:00 | 1d | 3,676 | 15K |
| 9 | March 27, 2023 04:15 | March 28, 2023 02:00 | 21h 45m | 3,168 | 2,780 |
| 10 | August 22, 2023 11:15 | August 23, 2023 09:30 | 22h 15m | 3,090 | 7,292 |
Outage episodes by size in 2023: 170 reached 100+ customers, 55 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 Spartanburg 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 Carolinas, LLC | 2023 | 5.0 hrs | 1.68 | 3.3 hrs | 1.52 |
| Laurens Electric Coop, Inc | 2023 | 2.3 hrs | 1.31 | 1.9 hrs | 1.18 |
| Blue Ridge Electric Coop Inc - (SC) | 2023 | 3.0 hrs | - | 2.8 hrs | - |
| Duke Energy | - | - | - | - | - |
| Broad River Electric Coop, Inc | - | - | - | - | - |
| Lockhart Power Co | - | - | - | - | - |
| Greer Commission of Public Wks | - | - | - | - | - |
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 ÷ 147,558 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. Spartanburg County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Spartanburg 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/spartanburg-county