County annual report · FIPS 45079
2015 Richland County, SC Power Outage Report
In 2015, customers in Richland County, SC went without power for an average of 2.7 hours, a total of 608K customer-hours (South Carolina average 2.5 hours). That ranks 16th worst of 46 South Carolina counties and 1011th of 2,484 nationally.
Compared with SC, the US
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Richland County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 3, 2015 07:15 | October 5, 2015 15:00 | 2d 7h | 11,688 | 217K |
| 2 | August 5, 2015 13:15 | August 8, 2015 03:45 | 2d 14h | 10,769 | 88K |
| 3 | January 29, 2015 14:00 | January 29, 2015 19:45 | 5h 45m | 9,593 | 29K |
| 4 | October 5, 2015 16:30 | October 15, 2015 02:15 | 9d 9h | 8,385 | 66K |
| 5 | July 8, 2015 12:00 | July 9, 2015 09:15 | 21h 15m | 6,373 | 2,653 |
| 6 | April 23, 2015 13:45 | April 23, 2015 21:15 | 7h 30m | 5,366 | 1,978 |
| 7 | November 13, 2015 16:00 | November 13, 2015 23:45 | 7h 45m | 3,662 | 2,783 |
| 8 | February 18, 2015 12:45 | February 19, 2015 03:00 | 14h 15m | 2,877 | 3,883 |
| 9 | July 19, 2015 21:15 | July 20, 2015 23:45 | 1d 2h | 2,860 | 1,647 |
| 10 | July 21, 2015 14:45 | July 22, 2015 05:30 | 14h 45m | 2,850 | 1,477 |
Outage episodes by size in 2015: 186 reached 100+ customers, 36 reached 1,000+ customers, 2 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 Richland County reported on EIA Form 861 for 2015, 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 | 2015 | 2.6 hrs | 1.62 | 1.6 hrs | 1.34 |
| Tri-County Electric Coop, Inc (SC) | 2015 | 20 min | 1.78 | 9 min | 0.39 |
| Fairfield Electric Coop, Inc | - | - | - | - | - |
| Mid-Carolina Electric Coop Inc | - | - | - | - | - |
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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 227,559 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. Richland County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Richland County, SC annual power outage report, 2015, 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/2015/south-carolina/richland-county