massoutage

County annual report · FIPS 45091

2015 York County, SC Power Outage Report

In 2015, customers in York County, SC went without power for an average of 0.5 hours, a total of 83K customer-hours (South Carolina average 2.5 hours). That ranks 39th worst of 46 South Carolina counties and 2076th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
173,488 customers
Customer-hours out
83K
Peak customers out
3,196
Outages ≥1,000 out
10
0 of 10,000+ · 615 total
Longest outage
1d 8h
began October 3, 2015
Rank in state
39th/46
2076th of 2,484 US

Compared with SC, the US

York County, SC average hours without power per customer compared with state and national averages, 2015York County 0.5 hours, South Carolina average 2.5 hours, US average 2.9 hoursYork CountyYork 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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York County, SC customer-hours without power by month, 2015Jan 1,225, Feb 8,752, Mar 1,524, Apr 2,001, May 15K, Jun 7,058, Jul 9,429, Aug 1,646, Sep 9,118, Oct 9,202, Nov 12K, Dec 5,78905k10k15k20k1,225Jan8,752Feb1,524Mar2,001Apr15KMay7,058Jun9,429Jul1,646Aug9,118Sep9,202Oct12KNov5,789Dec
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Customer-hours; May was the worst month.

York County year over year

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York County, SC: average hours without power per customer by year2015: 0.5h; 2016: 0.8h; 2017: 1.2h; 2018: 1.6h, coverage 99%; 2019: 0.7h, coverage 99%; 2020: 2.1h, coverage 99%; 2021: 0.8h, coverage 99%; 2022: 2.1h, coverage 99%; 2023: 1.5h; 2024: 14.4h; 2025: 1.7h0510150%50%100%0.5h20150.8h20161.2h20171.6h20180.7h20192.1h20200.8h20212.1h20221.5h202314.4h20241.7h2025
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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 York County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 6, 2015 22:15May 7, 2015 08:1510h3,19611K
2February 20, 2015 10:30February 20, 2015 18:308h2,2613,770
3November 8, 2015 04:15November 8, 2015 04:4530m1,344672
4July 21, 2015 15:00July 22, 2015 03:3012h 30m1,274776
5September 26, 2015 19:15September 26, 2015 19:4530m1,261631
6July 23, 2015 10:45July 23, 2015 16:155h 30m1,253631
7July 22, 2015 10:30July 22, 2015 16:005h 30m1,225618
8December 24, 2015 01:15December 24, 2015 06:155h1,1482,876
9May 27, 2015 03:30May 27, 2015 09:155h 45m1,0943,831
10June 16, 2015 04:00June 16, 2015 04:4545m1,008253

Outage episodes by size in 2015: 44 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 York 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
City of Rock Hill - (SC)20153.2 hrs1.652.0 hrs1.37
Duke Energy-----
Broad River Electric Coop, Inc-----
Fairfield Electric Coop, Inc-----
York 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 n/a of South Carolina's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 173,488 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. York County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), York 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/york-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON