County annual report · FIPS 45075
2021 Orangeburg County, SC Power Outage Report
In 2021, customers in Orangeburg County, SC went without power for an average of 2.3 hours, a total of 137K customer-hours (South Carolina average 2.1 hours). That ranks 22nd worst of 46 South Carolina counties and 2091st of 2,974 nationally.
Compared with SC, the US and 2020
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Orangeburg County, 2021
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 12, 2021 18:00 | June 13, 2021 07:00 | 13h | 4,784 | 13K |
| 2 | May 12, 2021 11:30 | May 12, 2021 20:45 | 9h 15m | 4,667 | 3,912 |
| 3 | June 15, 2021 12:00 | June 17, 2021 02:30 | 1d 14h | 3,888 | 15K |
| 4 | June 11, 2021 11:30 | June 11, 2021 21:00 | 9h 30m | 3,242 | 4,893 |
| 5 | May 4, 2021 21:45 | May 5, 2021 08:00 | 10h 15m | 2,914 | 2,842 |
| 6 | June 3, 2021 12:30 | June 3, 2021 15:45 | 3h 15m | 2,257 | 2,273 |
| 7 | April 8, 2021 13:15 | April 8, 2021 23:30 | 10h 15m | 2,008 | 1,251 |
| 8 | March 14, 2021 21:15 | March 15, 2021 01:30 | 4h 15m | 1,914 | 2,614 |
| 9 | August 17, 2021 20:00 | August 18, 2021 12:00 | 16h | 1,741 | 2,252 |
| 10 | June 2, 2021 20:30 | June 3, 2021 05:15 | 8h 45m | 1,740 | 3,038 |
Outage episodes by size in 2021: 98 reached 100+ customers, 15 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 Orangeburg County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Dominion Energy South Carolina, Inc | 2021 | 1.5 hrs | 1.10 | 79 min | 1.02 |
| Aiken Electric Coop Inc | 2021 | 1.9 hrs | - | 1.6 hrs | - |
| Edisto Electric Coop, Inc | 2021 | 3.0 hrs | - | 3.0 hrs | - |
| Tri-County Electric Coop, Inc (SC) | 2021 | 4.1 hrs | 2.61 | 3.4 hrs | 2.31 |
| City of Orangeburg - (SC) | 2021 | 5.1 hrs | 2.90 | 80 min | 1.20 |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 58,624 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. Orangeburg County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Orangeburg County, SC annual power outage report, 2021, 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/2021/south-carolina/orangeburg-county