County annual report · FIPS 45025
2021 Chesterfield County, SC Power Outage Report
In 2021, customers in Chesterfield County, SC went without power for an average of 4.7 hours, a total of 75K customer-hours (South Carolina average 2.1 hours). That ranks 5th worst of 46 South Carolina counties and 1404th of 2,974 nationally.
Compared with SC, the US and 2020
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Chesterfield County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 29, 2021 00:45 | July 29, 2021 14:30 | 13h 45m | 5,265 | 3,048 |
| 2 | July 25, 2021 20:30 | July 25, 2021 23:45 | 3h 15m | 5,049 | 9,068 |
| 3 | May 4, 2021 21:30 | May 5, 2021 20:00 | 22h 30m | 4,424 | 16K |
| 4 | March 7, 2021 21:30 | March 7, 2021 23:15 | 1h 45m | 3,301 | 2,724 |
| 5 | August 1, 2021 19:00 | August 2, 2021 11:45 | 16h 45m | 2,295 | 4,024 |
| 6 | March 29, 2021 17:15 | March 29, 2021 20:45 | 3h 30m | 2,230 | 1,747 |
| 7 | June 11, 2021 20:30 | June 11, 2021 23:00 | 2h 30m | 1,890 | 1,610 |
| 8 | August 11, 2021 00:00 | August 11, 2021 05:15 | 5h 15m | 910 | 2,726 |
| 9 | July 17, 2021 18:15 | July 17, 2021 22:30 | 4h 15m | 804 | 527 |
| 10 | February 25, 2021 17:45 | February 26, 2021 00:45 | 7h | 776 | 1,375 |
Outage episodes by size in 2021: 44 reached 100+ customers, 7 reached 1,000+ customers, 0 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 Chesterfield County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Duke Energy Progress - (NC) | 2021 | 3.1 hrs | 1.39 | 2.4 hrs | 1.34 |
| Lynches River Elec Coop, Inc | 2021 | 3.5 hrs | 2.50 | 3.2 hrs | 2.30 |
| Duke Energy | - | - | - | - | - |
| MPD Electric Cooperative | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 16,153 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. Chesterfield County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Chesterfield County, SC annual power outage report, 2021, 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/2021/south-carolina/chesterfield-county