massoutage

County annual report · FIPS 45035

2016 Dorchester County, SC Power Outage Report

In 2016, customers in Dorchester County, SC went without power for an average of 19.2 hours, a total of 1.4M customer-hours (South Carolina average 13.0 hours). That ranks 17th worst of 46 South Carolina counties and 154th of 2,391 nationally.

Summary data CSVJSON
Avg hrs / customer
19.2
73,269 customers
Customer-hours out
1.4M
Peak customers out
50,197
Outages ≥1,000 out
15
2 of 10,000+ · 665 total
Longest outage
5d 11h
began October 8, 2016
Rank in state
17th/46
154th of 2,391 US

Compared with SC, the US and 2015

Dorchester County, SC average hours without power per customer compared with state and national averages, 2016Dorchester County 19.2 hours, South Carolina average 13.0 hours, US average 3.9 hours, Dorchester County, 2015 1.0 hoursDorchester CountyDorchester County19.2hSouth Carolina averageSouth Carolina avera…13.0hUS averageUS average3.9hDorchester County, 2015Dorchester County, 2…1.0h
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Average hours without power per customer in 2016; last bar is this county in 2015.

Month by month

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Dorchester County, SC customer-hours without power by month, 2016Jan 5,019, Feb 8,763, Mar 3,286, Apr 2,350, May 6,994, Jun 0, Jul 1,910, Aug 7,263, Sep 5,954, Oct 1.4M, Nov 6,447, Dec 4,2790500k1M1.5M5,019Jan8,763Feb3,286Mar2,350Apr6,994May0Jun1,910Jul7,263Aug5,954Sep1.4MOct6,447Nov4,279Dec
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Customer-hours; October was the worst month.

Dorchester County year over year

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Dorchester County, SC: average hours without power per customer by year2015: 1.0h; 2016: 19.2h; 2017: 2.9h; 2018: 2.1h, coverage 99%; 2019: 11.2h, coverage 99%; 2020: 2.7h, coverage 99%; 2021: 1.4h, coverage 99%; 2022: 4.2h, coverage 99%; 2023: 2.4h; 2024: 9.1h; 2025: 2.8h051015200%50%100%1.0h201519.2h20162.9h20172.1h201811.2h20192.7h20201.4h20214.2h20222.4h20239.1h20242.8h2025
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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 Dorchester County, 2016

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 8, 2016 22:30October 14, 2016 09:455d 11h50,1971.2M
2October 7, 2016 21:45October 8, 2016 17:4520h45,215194K
3May 4, 2016 02:15May 4, 2016 13:3011h 15m7,4765,842
4August 18, 2016 22:30August 19, 2016 05:006h 30m3,0462,481
5December 27, 2016 12:45December 27, 2016 15:152h 30m2,812980
6May 3, 2016 08:30May 3, 2016 08:4515m2,247562
7February 16, 2016 04:15February 16, 2016 06:152h2,2162,886
8February 24, 2016 14:45February 25, 2016 03:3012h 45m1,9951,073
9August 24, 2016 20:15August 24, 2016 21:301h 15m1,787778
10July 31, 2016 17:30August 1, 2016 01:007h 30m1,4011,843

Outage episodes by size in 2016: 71 reached 100+ customers, 15 reached 1,000+ customers, 2 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 Dorchester County reported on EIA Form 861 for 2016, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Dominion Energy South Carolina, Inc201623.2 hrs2.801.5 hrs1.30
Edisto Electric Coop, Inc20162.9 hrs-43 min-
Berkeley Electric Coop Inc201635.7 hrs3.443.0 hrs1.84
Coastal Electric Coop, Inc201657.7 hrs4.613.9 hrs2.54

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 2016; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 73,269 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. Dorchester County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Dorchester County, SC annual power outage report, 2016, 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/2016/south-carolina/dorchester-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON