County annual report · FIPS 45023
2022 Chester County, SC Power Outage Report
In 2022, customers in Chester County, SC went without power for an average of 11.5 hours, a total of 236K customer-hours (South Carolina average 4.4 hours). That ranks 7th worst of 46 South Carolina counties and 619th of 2,976 nationally.
Compared with SC, the US and 2021
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Chester County, 2022
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 16, 2022 18:30 | June 18, 2022 04:00 | 1d 9h | 3,348 | 23K |
| 2 | January 16, 2022 12:30 | January 18, 2022 20:15 | 2d 7h | 2,428 | 45K |
| 3 | July 30, 2022 05:15 | July 30, 2022 17:45 | 12h 30m | 2,361 | 12K |
| 4 | December 23, 2022 09:45 | December 31, 2022 13:00 | 8d 3h | 2,284 | 70K |
| 5 | January 3, 2022 10:45 | January 5, 2022 00:45 | 1d 14h | 2,184 | 19K |
| 6 | July 7, 2022 11:45 | July 7, 2022 22:15 | 10h 30m | 1,299 | 3,007 |
| 7 | September 30, 2022 14:00 | October 1, 2022 14:45 | 1d | 1,233 | 2,153 |
| 8 | May 6, 2022 15:45 | May 7, 2022 20:00 | 1d 4h | 1,199 | 16K |
| 9 | November 13, 2022 21:30 | November 14, 2022 01:15 | 3h 45m | 1,180 | 3,466 |
| 10 | January 27, 2022 10:00 | January 27, 2022 19:00 | 9h | 1,012 | 1,025 |
Outage episodes by size in 2022: 56 reached 100+ customers, 10 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 Chester County reported on EIA Form 861 for 2022, 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 Carolinas, LLC | 2022 | 7.1 hrs | 1.93 | 3.1 hrs | 1.35 |
| York Electric Coop Inc | 2022 | 2.3 hrs | 1.09 | 1.9 hrs | 0.88 |
| Duke Energy | - | - | - | - | - |
| Fairfield Electric Coop, Inc | - | - | - | - | - |
| Lockhart Power Co | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 20,548 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. Chester County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Chester County, SC annual power outage report, 2022, 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/2022/south-carolina/chester-county