County annual report · FIPS 45079
2017 Richland County, SC Power Outage Report
In 2017, customers in Richland County, SC went without power for an average of 2.2 hours, a total of 504K customer-hours (South Carolina average 4.4 hours). That ranks 36th worst of 46 South Carolina counties and 1565th 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 Richland 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 09:45 | September 14, 2017 02:00 | 2d 16h | 17,547 | 220K |
| 2 | July 23, 2017 19:45 | July 25, 2017 08:30 | 1d 12h | 10,849 | 24K |
| 3 | April 5, 2017 17:45 | April 7, 2017 21:30 | 2d 3h | 6,358 | 25K |
| 4 | March 3, 2017 13:00 | March 4, 2017 10:45 | 21h 45m | 6,122 | 38K |
| 5 | November 27, 2017 17:15 | November 27, 2017 23:00 | 5h 45m | 4,412 | 1,245 |
| 6 | April 24, 2017 00:30 | April 24, 2017 07:30 | 7h | 4,117 | 4,857 |
| 7 | July 4, 2017 20:30 | July 5, 2017 08:15 | 11h 45m | 4,011 | 6,863 |
| 8 | March 21, 2017 10:00 | March 23, 2017 00:45 | 1d 14h | 3,815 | 11K |
| 9 | August 8, 2017 12:15 | August 8, 2017 19:45 | 7h 30m | 3,450 | 2,012 |
| 10 | October 13, 2017 09:45 | October 13, 2017 17:15 | 7h 30m | 3,394 | 980 |
Outage episodes by size in 2017: 166 reached 100+ customers, 38 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 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 |
| Tri-County Electric Coop, Inc (SC) | 2017 | 5.6 hrs | 3.43 | 2.9 hrs | 2.34 |
| Mid-Carolina Electric Coop Inc | 2017 | 5.4 hrs | 2.12 | 70 min | 1.21 |
| 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 2017; 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, 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/richland-county