County annual report · FIPS 45015
2019 Berkeley County, SC Power Outage Report
In 2019, customers in Berkeley County, SC went without power for an average of 6.1 hours, a total of 992K customer-hours (South Carolina average 4.8 hours). That ranks 9th worst of 46 South Carolina counties and 903rd of 2,945 nationally.
Compared with SC, the US and 2018
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Berkeley County, 2019
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 4, 2019 12:30 | September 8, 2019 22:00 | 4d 9h | 38,691 | 714K |
| 2 | June 22, 2019 09:30 | June 23, 2019 06:00 | 20h 30m | 8,689 | 17K |
| 3 | June 29, 2019 21:00 | June 30, 2019 18:15 | 21h 15m | 7,193 | 18K |
| 4 | June 12, 2019 22:15 | June 13, 2019 03:30 | 5h 15m | 7,039 | 3,528 |
| 5 | September 27, 2019 07:00 | September 27, 2019 21:30 | 14h 30m | 6,236 | 16K |
| 6 | May 25, 2019 16:15 | May 26, 2019 01:45 | 9h 30m | 5,785 | 12K |
| 7 | May 1, 2019 10:15 | May 1, 2019 18:45 | 8h 30m | 4,698 | 5,011 |
| 8 | May 24, 2019 22:30 | May 25, 2019 05:30 | 7h | 4,668 | 1,253 |
| 9 | September 10, 2019 13:15 | September 10, 2019 22:15 | 9h | 4,007 | 4,226 |
| 10 | July 2, 2019 00:30 | July 2, 2019 05:45 | 5h 15m | 3,562 | 1,213 |
Outage episodes by size in 2019: 143 reached 100+ customers, 33 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 2019, 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 | 2018 | 2.8 hrs | 1.80 | 1.6 hrs | 1.37 |
| Edisto Electric Coop, Inc | 2018 | 3.3 hrs | - | 74 min | - |
| Berkeley Electric Coop Inc | 2018 | 2.9 hrs | 1.76 | 2.2 hrs | 1.55 |
| South Carolina Public Service Authority | 2018 | 8.6 hrs | 1.10 | 21 min | 0.31 |
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 2019; 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, 2019, 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/2019/south-carolina/berkeley-county