massoutage

County annual report · FIPS 45055

2021 Kershaw County, SC Power Outage Report

In 2021, customers in Kershaw County, SC went without power for an average of 1.7 hours, a total of 72K customer-hours (South Carolina average 2.1 hours). That ranks 33rd worst of 46 South Carolina counties and 2374th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
1.7
43,198 customers
Customer-hours out
72K
Peak customers out
7,651
Outages ≥1,000 out
7
0 of 10,000+ · 613 total
Longest outage
4d 13h
began October 13, 2021
Rank in state
33rd/46
2374th of 2,974 US

Compared with SC, the US and 2020

Kershaw County, SC average hours without power per customer compared with state and national averages, 2021Kershaw County 1.7 hours, South Carolina average 2.1 hours, US average 8.9 hours, Kershaw County, 2020 3.3 hoursKershaw CountyKershaw County1.7hSouth Carolina averageSouth Carolina avera…2.1hUS averageUS average8.9hKershaw County, 2020Kershaw County, 20203.3h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Kershaw County, SC customer-hours without power by month, 2021Jan 10K, Feb 899, Mar 4,538, Apr 1,434, May 17K, Jun 9,701, Jul 9,285, Aug 10K, Sep 2,856, Oct 1,017, Nov 2,558, Dec 1,91005k10k15k20k10KJan899Feb4,538Mar1,434Apr17KMay9,701Jun9,285Jul10KAug2,856Sep1,017Oct2,558Nov1,910Dec
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Customer-hours; May was the worst month.

Kershaw County year over year

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Kershaw County, SC: average hours without power per customer by year2015: 0.7h; 2016: 4.0h; 2017: 0.8h; 2018: 2.2h, coverage 99%; 2019: 2.1h, coverage 99%; 2020: 3.3h, coverage 99%; 2021: 1.7h, coverage 99%; 2022: 4.4h, coverage 99%; 2023: 1.6h; 2024: 8.0h; 2025: 2.1h02.557.5100%50%100%0.7h20154.0h20160.8h20172.2h20182.1h20193.3h20201.7h20214.4h20221.6h20238.0h20242.1h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of South Carolina customers tracked each year.

Biggest outages in Kershaw County, 2021

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 12, 2021 00:30January 12, 2021 06:005h 30m7,6519,173
2July 29, 2021 00:45July 29, 2021 09:008h 15m5,2751,655
3July 14, 2021 20:45July 14, 2021 23:002h 15m4,1523,806
4May 4, 2021 21:15May 5, 2021 20:3023h 15m3,30313K
5June 5, 2021 02:30June 6, 2021 19:001d 16h1,9272,338
6August 7, 2021 22:00August 8, 2021 15:3017h 30m1,3957,006
7March 28, 2021 12:30March 28, 2021 23:4511h 15m1,2162,404
8March 17, 2021 14:15March 17, 2021 17:153h835424
9July 9, 2021 19:30July 10, 2021 02:156h 45m776382
10September 14, 2021 18:00September 14, 2021 18:1515m759190

Outage episodes by size in 2021: 55 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 Kershaw County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Progress - (NC)20213.1 hrs1.392.4 hrs1.34
Duke Energy Carolinas, LLC20213.5 hrs1.202.5 hrs1.10
Dominion Energy South Carolina, Inc20211.5 hrs1.1079 min1.02
Tri-County Electric Coop, Inc (SC)20214.1 hrs2.613.4 hrs2.31
Lynches River Elec Coop, Inc20213.5 hrs2.503.2 hrs2.30
Fairfield Electric Coop, Inc-----
Black River Electric Coop, Inc - (SC)-----
City of Camden-----

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 ÷ 43,198 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. Kershaw County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Kershaw 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/kershaw-county

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