County annual report · FIPS 45045
2020 Greenville County, SC Power Outage Report
In 2020, customers in Greenville County, SC went without power for an average of 15.3 hours, a total of 3.2M customer-hours (South Carolina average 5.7 hours). That ranks 3rd worst of 46 South Carolina counties and 548th of 3,019 nationally.
Compared with SC, the US and 2019
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Greenville County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 27, 2020 12:45 | November 5, 2020 05:45 | 8d 17h | 71,283 | 2.2M |
| 2 | April 6, 2020 13:30 | April 16, 2020 21:00 | 10d 7h | 35,691 | 173K |
| 3 | May 22, 2020 11:15 | May 24, 2020 07:30 | 1d 20h | 18,597 | 96K |
| 4 | April 26, 2020 00:00 | April 28, 2020 10:30 | 2d 10h | 10,802 | 97K |
| 5 | December 3, 2020 11:15 | December 4, 2020 01:30 | 14h 15m | 6,819 | 21K |
| 6 | January 10, 2020 18:15 | January 13, 2020 03:45 | 2d 9h | 4,376 | 22K |
| 7 | May 18, 2020 12:15 | May 22, 2020 04:15 | 3d 16h | 4,060 | 36K |
| 8 | September 12, 2020 13:15 | September 13, 2020 04:15 | 15h | 3,469 | 4,457 |
| 9 | June 20, 2020 08:30 | June 24, 2020 05:15 | 3d 20h | 3,343 | 75K |
| 10 | October 10, 2020 12:15 | October 12, 2020 23:45 | 2d 11h | 3,330 | 26K |
Outage episodes by size in 2020: 150 reached 100+ customers, 50 reached 1,000+ customers, 4 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 2020, 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 | 2020 | 11.2 hrs | 1.71 | 3.1 hrs | 1.18 |
| Laurens Electric Coop, Inc | 2020 | 2.9 hrs | 1.44 | 1.9 hrs | 1.19 |
| Blue Ridge Electric Coop Inc - (SC) | 2020 | 3.1 hrs | - | 2.7 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 99% of South Carolina's customers in 2020; 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, 2020, 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/2020/south-carolina/greenville-county