County annual report · FIPS 45005
2020 Allendale County, SC Power Outage Report
In 2020, customers in Allendale County, SC went without power for an average of 3.6 hours, a total of 17K customer-hours (South Carolina average 5.7 hours). That ranks 22nd worst of 46 South Carolina counties and 1706th 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 Allendale 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 | August 14, 2020 00:30 | August 14, 2020 13:15 | 12h 45m | 608 | 4,670 |
| 2 | February 7, 2020 08:45 | February 7, 2020 17:45 | 9h | 406 | 796 |
| 3 | June 5, 2020 21:00 | June 6, 2020 00:00 | 3h | 236 | 697 |
| 4 | November 11, 2020 22:30 | November 12, 2020 00:45 | 2h 15m | 234 | 527 |
| 5 | April 6, 2020 13:30 | April 14, 2020 21:30 | 8d 8h | 178 | 2,572 |
| 6 | April 19, 2020 17:45 | April 19, 2020 22:15 | 4h 30m | 162 | 88 |
| 7 | December 25, 2020 02:00 | December 25, 2020 07:45 | 5h 45m | 154 | 463 |
| 8 | November 18, 2020 04:45 | November 18, 2020 13:30 | 8h 45m | 135 | 873 |
| 9 | January 21, 2020 11:45 | January 21, 2020 13:15 | 1h 30m | 131 | 160 |
| 10 | October 13, 2020 15:45 | October 13, 2020 17:00 | 1h 15m | 131 | 66 |
Outage episodes by size in 2020: 14 reached 100+ customers, 0 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 Allendale 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 |
|---|---|---|---|---|---|
| Dominion Energy South Carolina, Inc | 2020 | 2.4 hrs | 1.40 | 88 min | 1.17 |
| Edisto Electric Coop, Inc | 2020 | 10.8 hrs | - | 3.7 hrs | - |
| Palmetto Electric Coop Inc | 2020 | 88 min | 0.66 | 38 min | 0.54 |
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 ÷ 4,639 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. Allendale County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Allendale 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/allendale-county