County annual report · FIPS 45079
2019 Richland County, SC Power Outage Report
In 2019, customers in Richland County, SC went without power for an average of 2.6 hours, a total of 597K customer-hours (South Carolina average 4.8 hours). That ranks 31st worst of 46 South Carolina counties and 1792nd 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 Richland 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 | June 20, 2019 14:00 | June 26, 2019 05:30 | 5d 15h | 33,840 | 346K |
| 2 | October 4, 2019 12:45 | October 4, 2019 16:45 | 4h | 10,258 | 5,170 |
| 3 | February 12, 2019 14:45 | February 13, 2019 22:30 | 1d 7h | 5,607 | 9,764 |
| 4 | April 26, 2019 17:00 | April 27, 2019 05:15 | 12h 15m | 5,584 | 4,797 |
| 5 | March 25, 2019 13:00 | March 28, 2019 20:00 | 3d 7h | 4,382 | 1,918 |
| 6 | October 31, 2019 14:15 | November 1, 2019 15:15 | 1d 1h | 3,903 | 8,863 |
| 7 | April 16, 2019 13:15 | April 16, 2019 20:45 | 7h 30m | 3,520 | 3,908 |
| 8 | June 7, 2019 02:45 | June 7, 2019 03:30 | 45m | 3,327 | 835 |
| 9 | May 4, 2019 20:15 | May 6, 2019 02:00 | 1d 5h | 3,190 | 10K |
| 10 | May 2, 2019 13:00 | May 2, 2019 17:30 | 4h 30m | 3,114 | 1,759 |
Outage episodes by size in 2019: 178 reached 100+ customers, 43 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 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 |
| Tri-County Electric Coop, Inc (SC) | 2018 | 6.4 hrs | 3.24 | 2.9 hrs | 2.31 |
| Mid-Carolina Electric Coop Inc | 2018 | 4.1 hrs | 2.56 | 2.2 hrs | 2.03 |
| Fairfield 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 99% of South Carolina's customers in 2019; 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, 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/richland-county