massoutage

County annual report · FIPS 45021

2015 Cherokee County, SC Power Outage Report

In 2015, customers in Cherokee County, SC went without power for an average of 0.5 hours, a total of 18K customer-hours (South Carolina average 2.5 hours). That ranks 40th worst of 46 South Carolina counties and 2095th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
39,741 customers
Customer-hours out
18K
Peak customers out
1,171
Outages ≥1,000 out
1
0 of 10,000+ · 390 total
Longest outage
1d 2h
began February 16, 2015
Rank in state
40th/46
2095th of 2,484 US

Compared with SC, the US

Cherokee County, SC average hours without power per customer compared with state and national averages, 2015Cherokee County 0.5 hours, South Carolina average 2.5 hours, US average 2.9 hoursCherokee CountyCherokee County0.5hSouth 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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Cherokee County, SC customer-hours without power by month, 2015Jan 412, Feb 1,585, Mar 105, Apr 297, May 203, Jun 3,531, Jul 1,997, Aug 2,605, Sep 4,735, Oct 2,030, Nov 473, Dec 28002k4k6k412Jan1,585Feb105Mar297Apr203May3,531Jun1,997Jul2,605Aug4,735Sep2,030Oct473Nov280Dec
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Customer-hours; September was the worst month.

Cherokee County year over year

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Cherokee County, SC: average hours without power per customer by year2015: 0.5h; 2016: 1.2h; 2017: 2.5h; 2018: 0.7h, coverage 99%; 2019: 0.9h, coverage 99%; 2020: 4.1h, coverage 99%; 2021: 0.9h, coverage 99%; 2022: 4.0h, coverage 99%; 2023: 1.4h; 2024: 68.4h; 2025: 2.4h0204060800%50%100%0.5h20151.2h20162.5h20170.7h20180.9h20194.1h20200.9h20214.0h20221.4h202368.4h20242.4h2025
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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 Cherokee County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 19, 2015 17:30February 19, 2015 19:151h 45m1,171588
2August 3, 2015 20:15August 3, 2015 22:452h 30m7171,276
3August 21, 2015 13:00August 21, 2015 16:003h715282
4June 20, 2015 19:00June 21, 2015 10:1515h 15m5642,151
5October 3, 2015 07:30October 3, 2015 23:0015h 30m4961,179
6June 10, 2015 04:00June 10, 2015 07:303h 30m488872
7September 24, 2015 23:15September 25, 2015 06:157h441778
8September 12, 2015 21:15September 13, 2015 06:309h 15m3551,003
9September 26, 2015 09:15September 26, 2015 21:3012h 15m2141,184
10June 2, 2015 20:30June 3, 2015 01:004h 30m186228

Outage episodes by size in 2015: 14 reached 100+ customers, 1 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 Cherokee 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 Carolinas, LLC20155.3 hrs1.292.6 hrs1.02
Duke Energy-----
Broad River Electric Coop, Inc-----
York Electric Coop Inc-----
Lockhart Power Co-----
City of Gaffney - (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 ÷ 39,741 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. Cherokee County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Cherokee 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/cherokee-county

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