County annual report · FIPS 45035
2022 Dorchester County, SC Power Outage Report
In 2022, customers in Dorchester County, SC went without power for an average of 4.2 hours, a total of 311K customer-hours (South Carolina average 4.4 hours). That ranks 29th worst of 46 South Carolina counties and 1588th of 2,976 nationally.
Compared with SC, the US and 2021
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Dorchester County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 30, 2022 08:15 | October 2, 2022 23:30 | 2d 15h | 25,331 | 145K |
| 2 | December 24, 2022 11:00 | December 25, 2022 05:00 | 18h | 9,901 | 3,254 |
| 3 | December 1, 2022 18:15 | December 1, 2022 20:15 | 2h | 7,075 | 4,456 |
| 4 | January 3, 2022 07:00 | January 4, 2022 21:45 | 1d 14h | 5,871 | 32K |
| 5 | December 6, 2022 03:45 | December 6, 2022 06:45 | 3h | 4,245 | 11K |
| 6 | June 8, 2022 12:30 | June 9, 2022 04:15 | 15h 45m | 3,661 | 4,424 |
| 7 | June 28, 2022 16:30 | June 28, 2022 20:00 | 3h 30m | 2,733 | 1,820 |
| 8 | August 12, 2022 16:45 | August 13, 2022 22:00 | 1d 5h | 1,794 | 2,506 |
| 9 | June 3, 2022 16:00 | June 4, 2022 06:45 | 14h 45m | 1,669 | 2,870 |
| 10 | July 24, 2022 21:45 | July 25, 2022 17:15 | 19h 30m | 1,607 | 1,244 |
Outage episodes by size in 2022: 109 reached 100+ customers, 20 reached 1,000+ customers, 1 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 Dorchester County reported on EIA Form 861 for 2022, 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 | 2022 | 3.9 hrs | 1.93 | 78 min | 1.07 |
| Edisto Electric Coop, Inc | 2022 | 14.0 hrs | - | 4.9 hrs | - |
| Berkeley Electric Coop Inc | 2022 | 5.4 hrs | 2.05 | 2.0 hrs | 1.34 |
| Coastal Electric Coop, Inc | 2018 | 5.2 hrs | 2.73 | 3.2 hrs | 2.21 |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 73,269 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. Dorchester County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dorchester County, SC annual power outage report, 2022, 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/2022/south-carolina/dorchester-county