County annual report · FIPS 45079
2024 Richland County, SC Power Outage Report
In 2024, customers in Richland County, SC went without power for an average of 20.1 hours, a total of 4.6M customer-hours (South Carolina average 50.1 hours). That ranks 25th worst of 46 South Carolina counties and 503rd of 2,990 nationally.
Compared with SC, the US and 2023
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Richland County, 2024
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 26, 2024 10:00 | October 14, 2024 02:15 | 17d 16h | 106,649 | 4.2M |
| 2 | July 21, 2024 15:45 | July 23, 2024 05:15 | 1d 13h | 11,712 | 6,519 |
| 3 | December 29, 2024 07:15 | December 30, 2024 08:30 | 1d 1h | 10,831 | 7,601 |
| 4 | August 3, 2024 18:15 | August 6, 2024 03:30 | 2d 9h | 9,795 | 62K |
| 5 | August 6, 2024 05:15 | August 9, 2024 04:45 | 2d 23h | 7,524 | 26K |
| 6 | June 29, 2024 17:30 | July 2, 2024 03:15 | 2d 9h | 4,380 | 13K |
| 7 | April 10, 2024 22:30 | April 11, 2024 01:15 | 2h 45m | 4,027 | 1,017 |
| 8 | July 23, 2024 06:15 | July 26, 2024 09:30 | 3d 3h | 3,724 | 17K |
| 9 | July 17, 2024 12:00 | July 18, 2024 19:15 | 1d 7h | 3,520 | 7,454 |
| 10 | April 11, 2024 08:30 | April 13, 2024 22:00 | 2d 13h | 3,267 | 20K |
Outage episodes by size in 2024: 164 reached 100+ customers, 47 reached 1,000+ customers, 3 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 2024, 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 | 2024 | 31.8 hrs | 2.52 | 81 min | 1.19 |
| Tri-County Electric Coop, Inc (SC) | 2024 | 17.4 hrs | 4.09 | 2.9 hrs | 2.33 |
| Mid-Carolina Electric Coop Inc | 2024 | 65.3 hrs | 3.22 | 2.0 hrs | 1.62 |
| 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 n/a of South Carolina's customers in 2024; 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, 2024, 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/2024/south-carolina/richland-county