massoutage

County annual report · FIPS 45003

2024 Aiken County, SC Power Outage Report

In 2024, customers in Aiken County, SC went without power for an average of 156.1 hours, a total of 12.4M customer-hours (South Carolina average 50.1 hours). That ranks 5th worst of 46 South Carolina counties and 62nd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
156.1
79,309 customers
Customer-hours out
12.4M
Peak customers out
91,915
Outages ≥1,000 out
18
1 of 10,000+ · 930 total
Longest outage
22d 9h
began September 26, 2024
Rank in state
5th/46
62nd of 2,990 US

Compared with SC, the US and 2023

Aiken County, SC average hours without power per customer compared with state and national averages, 2024Aiken County 156.1 hours, South Carolina average 50.1 hours, US average 12.6 hours, Aiken County, 2023 2.6 hoursAiken CountyAiken County156.1hSouth Carolina averageSouth Carolina avera…50.1hUS averageUS average12.6hAiken County, 2023Aiken County, 20232.6h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Aiken County, SC customer-hours without power by month, 2024Jan 9,325, Feb 4,258, Mar 2,174, Apr 12K, May 9,224, Jun 9,386, Jul 30K, Aug 22K, Sep 6.7M, Oct 5.6M, Nov 18K, Dec 10K02M4M6M8M9,325Jan4,258Feb2,174Mar12KApr9,224May9,386Jun30KJul22KAug6.7MSep5.6MOct18KNov10KDec
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Customer-hours; September was the worst month.

Aiken County year over year

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Aiken County, SC: average hours without power per customer by year2015: 1.1h; 2016: 1.1h; 2017: 5.7h; 2018: 4.3h, coverage 99%; 2019: 3.7h, coverage 99%; 2020: 2.1h, coverage 99%; 2021: 2.4h, coverage 99%; 2022: 3.2h, coverage 99%; 2023: 2.6h; 2024: 156.1h; 2025: 3.7h0501001502000%50%100%1.1h20151.1h20165.7h20174.3h20183.7h20192.1h20202.4h20213.2h20222.6h2023156.1h20243.7h2025
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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 Aiken County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 26, 2024 14:30October 18, 2024 23:3022d 9h91,91512.2M
2July 27, 2024 14:45July 27, 2024 18:454h6,1418,998
3November 6, 2024 17:00November 9, 2024 20:303d 3h2,5395,496
4June 14, 2024 20:30June 14, 2024 21:1545m2,3401,755
5September 21, 2024 07:00September 21, 2024 13:156h 15m1,9112,522
6August 29, 2024 12:15August 29, 2024 23:1511h1,7622,598
7October 25, 2024 12:00October 27, 2024 05:151d 17h1,6743,506
8April 28, 2024 12:30April 28, 2024 14:302h1,664419
9July 16, 2024 00:45July 17, 2024 01:451d 1h1,6145,219
10January 9, 2024 13:30January 10, 2024 17:001d 3h1,5095,558

Outage episodes by size in 2024: 105 reached 100+ customers, 18 reached 1,000+ customers, 1 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 Aiken County reported on EIA Form 861 for 2024, 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, Inc202431.8 hrs2.5281 min1.19
Aiken Electric Coop Inc2024132.4 hrs-1.6 hrs-
Mid-Carolina Electric Coop Inc202465.3 hrs3.222.0 hrs1.62

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 79,309 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. Aiken County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Aiken County, SC annual power outage report, 2024, 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/2024/south-carolina/aiken-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON