massoutage

County annual report · FIPS 45049

2023 Hampton County, SC Power Outage Report

In 2023, customers in Hampton County, SC went without power for an average of 5.0 hours, a total of 44K customer-hours (South Carolina average 2.7 hours). That ranks 9th worst of 46 South Carolina counties and 1479th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
5.0
8,886 customers
Customer-hours out
44K
Peak customers out
3,395
Outages ≥1,000 out
5
0 of 10,000+ · 474 total
Longest outage
1d 3h
began August 30, 2023
Rank in state
9th/46
1479th of 2,977 US

Compared with SC, the US and 2022

Hampton County, SC average hours without power per customer compared with state and national averages, 2023Hampton County 5.0 hours, South Carolina average 2.7 hours, US average 7.1 hours, Hampton County, 2022 3.5 hoursHampton CountyHampton County5.0hSouth Carolina averageSouth Carolina avera…2.7hUS averageUS average7.1hHampton County, 2022Hampton County, 20223.5h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Hampton County, SC customer-hours without power by month, 2023Jan 360, Feb 322, Mar 1,577, Apr 1,130, May 588, Jun 14K, Jul 4,442, Aug 16K, Sep 1,535, Oct 253, Nov 718, Dec 3,73805k10k15k20k360Jan322Feb1,577Mar1,130Apr588May14KJun4,442Jul16KAug1,535Sep253Oct718Nov3,738Dec
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Customer-hours; August was the worst month.

Hampton County year over year

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Hampton County, SC: average hours without power per customer by year2015: 2.4h; 2016: 42.4h; 2017: 9.0h; 2018: 4.4h, coverage 99%; 2019: 4.8h, coverage 99%; 2020: 12.4h, coverage 99%; 2021: 2.0h, coverage 99%; 2022: 3.5h, coverage 99%; 2023: 5.0h; 2024: 67.7h; 2025: 3.0h0204060800%50%100%2.4h201542.4h20169.0h20174.4h20184.8h201912.4h20202.0h20213.5h20225.0h202367.7h20243.0h2025
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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 Hampton County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 7, 2023 23:30June 8, 2023 12:1512h 45m3,3957,405
2June 11, 2023 16:30June 12, 2023 02:3010h3,1441,614
3August 30, 2023 21:15September 1, 2023 00:151d 3h2,21112K
4August 1, 2023 07:15August 1, 2023 16:459h 30m1,7681,088
5June 12, 2023 08:00June 12, 2023 08:1515m1,474369
6June 1, 2023 18:45June 2, 2023 03:459h7752,873
7June 13, 2023 13:45June 13, 2023 15:001h 15m775813
8December 11, 2023 03:00December 11, 2023 08:005h5951,243
9July 31, 2023 00:30July 31, 2023 18:1517h 45m5561,620
10August 15, 2023 22:45August 16, 2023 03:004h 15m497447

Outage episodes by size in 2023: 37 reached 100+ customers, 5 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 Hampton County reported on EIA Form 861 for 2023, 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, Inc20232.0 hrs1.4890 min1.32
Edisto Electric Coop, Inc20237.6 hrs-5.6 hrs-
Palmetto Electric Coop Inc20232.8 hrs2.3135 min0.60

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 8,886 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. Hampton County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Hampton County, SC annual power outage report, 2023, 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/2023/south-carolina/hampton-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON