massoutage

County annual report · FIPS 45027

2015 Clarendon County, SC Power Outage Report

In 2015, customers in Clarendon County, SC went without power for an average of 3.4 hours, a total of 60K customer-hours (South Carolina average 2.5 hours). That ranks 14th worst of 46 South Carolina counties and 830th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
17,809 customers
Customer-hours out
60K
Peak customers out
3,275
Outages ≥1,000 out
3
0 of 10,000+ · 225 total
Longest outage
2d 4h
began October 3, 2015
Rank in state
14th/46
830th of 2,484 US

Compared with SC, the US

Clarendon County, SC average hours without power per customer compared with state and national averages, 2015Clarendon County 3.4 hours, South Carolina average 2.5 hours, US average 2.9 hoursClarendon CountyClarendon County3.4hSouth Carolina averageSouth Carolina avera…2.5hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Clarendon County, SC customer-hours without power by month, 2015Jan 597, Feb 1,560, Mar 137, Apr 708, May 623, Jun 2,445, Jul 754, Aug 2,908, Sep 371, Oct 48K, Nov 1,091, Dec 383020k40k60k597Jan1,560Feb137Mar708Apr623May2,445Jun754Jul2,908Aug371Sep48KOct1,091Nov383Dec
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Customer-hours; October was the worst month.

Clarendon County year over year

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Clarendon County, SC: average hours without power per customer by year2015: 3.4h; 2016: 28.4h; 2017: 2.6h; 2018: 4.5h, coverage 99%; 2019: 5.9h, coverage 99%; 2020: 2.1h, coverage 99%; 2021: 2.4h, coverage 99%; 2022: 4.1h, coverage 99%; 2023: 4.1h; 2024: 4.1h; 2025: 2.7h01020300%50%100%3.4h201528.4h20162.6h20174.5h20185.9h20192.1h20202.4h20214.1h20224.1h20234.1h20242.7h2025
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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 Clarendon County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 3, 2015 23:00October 6, 2015 03:152d 4h3,27548K
2November 18, 2015 14:15November 18, 2015 14:4530m1,771886
3February 2, 2015 18:00February 2, 2015 19:451h 45m1,0961,098
4August 1, 2015 06:15August 1, 2015 09:303h 15m8532,772
5April 29, 2015 18:45April 29, 2015 20:301h 45m808591
6June 28, 2015 00:00June 28, 2015 05:305h 30m3021,136
7June 30, 2015 22:30July 1, 2015 06:157h 45m295517
8June 18, 2015 20:30June 19, 2015 00:153h 45m227238
9February 20, 2015 00:30February 20, 2015 03:002h 30m161403
10June 4, 2015 05:45June 4, 2015 13:458h143351

Outage episodes by size in 2015: 14 reached 100+ customers, 3 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 Clarendon County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Progress - (NC)20154.8 hrs1.903.0 hrs1.65
Santee Electric Coop, Inc20153.9 hrs-2.7 hrs-
Duke Energy-----
Black River Electric Coop, Inc - (SC)-----

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 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 17,809 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. Clarendon County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Clarendon County, SC annual power outage report, 2015, 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/2015/south-carolina/clarendon-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON