County annual report · FIPS 45045
2025 Greenville County, SC Power Outage Report
In 2025, customers in Greenville County, SC went without power for an average of 3.6 hours, a total of 747K customer-hours (South Carolina average 3.0 hours). That ranks 19th worst of 46 South Carolina counties and 1882nd 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 Greenville 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 6, 2025 11:30 | June 10, 2025 04:30 | 3d 17h | 18,955 | 112K |
| 2 | June 17, 2025 11:00 | June 20, 2025 09:15 | 2d 22h | 16,002 | 89K |
| 3 | June 25, 2025 11:45 | June 26, 2025 17:00 | 1d 5h | 11,630 | 70K |
| 4 | March 15, 2025 11:45 | March 18, 2025 05:15 | 2d 17h | 7,521 | 43K |
| 5 | April 23, 2025 05:15 | April 25, 2025 01:30 | 1d 20h | 7,092 | 16K |
| 6 | August 7, 2025 12:45 | August 8, 2025 07:00 | 18h 15m | 3,701 | 1,221 |
| 7 | May 22, 2025 12:15 | May 24, 2025 14:00 | 2d 1h | 2,791 | 17K |
| 8 | October 4, 2025 12:30 | October 5, 2025 03:00 | 14h 30m | 2,644 | 2,238 |
| 9 | September 20, 2025 14:45 | September 21, 2025 16:45 | 1d 2h | 2,589 | 5,315 |
| 10 | May 12, 2025 06:30 | May 15, 2025 16:45 | 3d 10h | 2,340 | 26K |
Outage episodes by size in 2025: 153 reached 100+ customers, 53 reached 1,000+ customers, 3 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 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 Carolinas, LLC | 2024 | 78.6 hrs | 2.50 | 2.9 hrs | 1.26 |
| Laurens Electric Coop, Inc | 2024 | 138.5 hrs | 2.84 | 1.6 hrs | 1.14 |
| Blue Ridge Electric Coop Inc - (SC) | 2024 | 88.2 hrs | - | 3.2 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 2025; 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, 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/greenville-county