County annual report · FIPS 45015
2017 Berkeley County, SC Power Outage Report
In 2017, customers in Berkeley County, SC went without power for an average of 1.2 hours, a total of 202K customer-hours (South Carolina average 4.4 hours). That ranks 39th worst of 46 South Carolina counties and 1940th of 2,786 nationally.
Compared with SC, the US and 2016
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Berkeley County, 2017
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 11, 2017 10:30 | September 14, 2017 01:45 | 2d 15h | 17,445 | 124K |
| 2 | October 4, 2017 10:00 | October 5, 2017 00:45 | 14h 45m | 7,147 | 5,723 |
| 3 | October 29, 2017 14:15 | October 29, 2017 23:15 | 9h | 3,918 | 3,325 |
| 4 | October 13, 2017 09:00 | October 13, 2017 09:30 | 30m | 3,025 | 992 |
| 5 | October 24, 2017 12:30 | October 24, 2017 22:15 | 9h 45m | 2,989 | 3,569 |
| 6 | September 14, 2017 11:00 | September 15, 2017 00:00 | 13h | 2,882 | 922 |
| 7 | October 23, 2017 15:30 | October 24, 2017 10:15 | 18h 45m | 2,244 | 4,975 |
| 8 | November 7, 2017 13:15 | November 7, 2017 23:15 | 10h | 1,893 | 1,590 |
| 9 | August 25, 2017 14:15 | August 25, 2017 16:15 | 2h | 1,570 | 395 |
| 10 | February 8, 2017 18:45 | February 8, 2017 22:00 | 3h 15m | 1,538 | 398 |
Outage episodes by size in 2017: 74 reached 100+ customers, 15 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 2017, 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 | 2017 | 5.5 hrs | 1.85 | 82 min | 1.14 |
| Edisto Electric Coop, Inc | 2017 | 3.4 hrs | - | 50 min | - |
| Berkeley Electric Coop Inc | 2017 | 9.0 hrs | 2.38 | 2.3 hrs | 1.79 |
| South Carolina Public Service Authority | 2017 | 32 min | 0.51 | 19 min | 0.32 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of South Carolina's customers in 2017; 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, 2017, 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/2017/south-carolina/berkeley-county