massoutage

County annual report · FIPS 45013

2018 Beaufort County, SC Power Outage Report

In 2018, customers in Beaufort County, SC went without power for an average of 2.3 hours, a total of 298K customer-hours (South Carolina average 5.2 hours). That ranks 35th worst of 46 South Carolina counties and 1707th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
2.3
127,289 customers
Customer-hours out
298K
Peak customers out
16,371
Outages ≥1,000 out
38
2 of 10,000+ · 987 total
Longest outage
1d 20h
began October 11, 2018
Rank in state
35th/46
1707th of 2,798 US

Compared with SC, the US and 2017

Beaufort County, SC average hours without power per customer compared with state and national averages, 2018Beaufort County 2.3 hours, South Carolina average 5.2 hours, US average 5.6 hours, Beaufort County, 2017 7.1 hoursBeaufort CountyBeaufort County2.3hSouth Carolina averageSouth Carolina avera…5.2hUS averageUS average5.6hBeaufort County, 2017Beaufort County, 20177.1h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Beaufort County, SC customer-hours without power by month, 2018Jan 35K, Feb 6,670, Mar 30K, Apr 11K, May 8,320, Jun 22K, Jul 28K, Aug 13K, Sep 12K, Oct 106K, Nov 8,909, Dec 17K050k100k150k35KJan6,670Feb30KMar11KApr8,320May22KJun28KJul13KAug12KSep106KOct8,909Nov17KDec
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Customer-hours; October was the worst month.

Beaufort County year over year

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Beaufort County, SC: average hours without power per customer by year2015: 1.1h; 2016: 29.7h; 2017: 7.1h; 2018: 2.3h, coverage 99%; 2019: 4.1h, coverage 99%; 2020: 1.4h, coverage 99%; 2021: 2.0h, coverage 99%; 2022: 2.0h, coverage 99%; 2023: 3.3h; 2024: 13.8h; 2025: 1.4h01020300%50%100%1.1h201529.7h20167.1h20172.3h20184.1h20191.4h20202.0h20212.0h20223.3h202313.8h20241.4h2025
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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 Beaufort County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 11, 2018 03:15October 12, 2018 23:451d 20h16,37194K
2April 23, 2018 14:15April 24, 2018 02:1512h10,1746,292
3August 2, 2018 22:45August 3, 2018 05:156h 30m8,8973,768
4January 3, 2018 15:00January 5, 2018 01:451d 10h3,90920K
5June 2, 2018 21:15June 3, 2018 09:0011h 45m2,7755,727
6June 25, 2018 16:30June 26, 2018 00:458h 15m2,7133,321
7July 5, 2018 05:30July 5, 2018 07:151h 45m2,5313,484
8July 9, 2018 19:45July 10, 2018 19:1523h 30m2,521805
9September 2, 2018 09:00September 2, 2018 14:455h 45m2,3533,558
10December 19, 2018 14:00December 19, 2018 18:454h 45m2,33110K

Outage episodes by size in 2018: 137 reached 100+ customers, 38 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 Beaufort County reported on EIA Form 861 for 2018, 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, Inc20182.8 hrs1.801.6 hrs1.37
Palmetto Electric Coop Inc201855 min0.7434 min0.56

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 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 127,289 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. Beaufort County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Beaufort County, SC annual power outage report, 2018, 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/2018/south-carolina/beaufort-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON