County annual report · FIPS 45015
2020 Berkeley County, SC Power Outage Report
In 2020, customers in Berkeley County, SC went without power for an average of 2.9 hours, a total of 467K customer-hours (South Carolina average 5.7 hours). That ranks 31st worst of 46 South Carolina counties and 1917th 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 Berkeley 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 | April 6, 2020 13:30 | April 15, 2020 01:30 | 8d 12h | 21,751 | 150K |
| 2 | August 15, 2020 20:45 | August 16, 2020 07:15 | 10h 30m | 8,441 | 14K |
| 3 | December 9, 2020 14:00 | December 31, 2020 00:15 | 21d 10h | 5,157 | 22K |
| 4 | June 28, 2020 01:45 | June 28, 2020 10:00 | 8h 15m | 3,238 | 3,989 |
| 5 | June 29, 2020 02:00 | June 29, 2020 08:00 | 6h | 3,084 | 3,663 |
| 6 | December 3, 2020 04:15 | December 3, 2020 09:15 | 5h | 2,821 | 8,463 |
| 7 | October 26, 2020 09:30 | October 26, 2020 19:00 | 9h 30m | 2,768 | 4,140 |
| 8 | July 28, 2020 20:45 | July 29, 2020 13:30 | 16h 45m | 2,453 | 6,122 |
| 9 | April 18, 2020 14:15 | April 18, 2020 22:30 | 8h 15m | 2,295 | 1,726 |
| 10 | May 24, 2020 08:45 | May 24, 2020 16:15 | 7h 30m | 2,213 | 9,290 |
Outage episodes by size in 2020: 124 reached 100+ customers, 29 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 Berkeley 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 | - |
| Berkeley Electric Coop Inc | 2020 | 5.3 hrs | 1.69 | 1.9 hrs | 1.27 |
| South Carolina Public Service Authority | 2020 | 49 min | 0.60 | 24 min | 0.39 |
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 ÷ 162,211 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. Berkeley County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Berkeley 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/berkeley-county