County annual report · FIPS 45045
2023 Greenville County, SC Power Outage Report
In 2023, customers in Greenville County, SC went without power for an average of 3.6 hours, a total of 756K customer-hours (South Carolina average 2.7 hours). That ranks 18th worst of 46 South Carolina counties and 1746th 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 Greenville 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 | April 1, 2023 12:00 | April 3, 2023 01:30 | 1d 13h | 5,379 | 12K |
| 2 | August 12, 2023 21:45 | August 14, 2023 09:15 | 1d 11h | 4,563 | 15K |
| 3 | June 25, 2023 15:30 | June 27, 2023 06:45 | 1d 15h | 4,558 | 33K |
| 4 | July 1, 2023 07:45 | July 4, 2023 07:15 | 2d 23h | 4,062 | 48K |
| 5 | August 14, 2023 11:30 | August 16, 2023 05:15 | 1d 17h | 3,941 | 17K |
| 6 | May 9, 2023 10:45 | May 11, 2023 00:45 | 1d 14h | 3,931 | 27K |
| 7 | August 8, 2023 18:45 | August 10, 2023 08:15 | 1d 13h | 3,397 | 5,965 |
| 8 | May 23, 2023 12:45 | May 24, 2023 08:30 | 19h 45m | 2,984 | 4,192 |
| 9 | April 27, 2023 11:15 | May 6, 2023 13:00 | 9d 1h | 2,881 | 9,479 |
| 10 | June 19, 2023 11:30 | June 19, 2023 23:30 | 12h | 2,804 | 2,202 |
Outage episodes by size in 2023: 175 reached 100+ customers, 68 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 Greenville 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 | - | - | - | - | - |
| 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 ÷ 208,040 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. Greenville County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Greenville 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/greenville-county