massoutage

County annual report · FIPS 45005

2024 Allendale County, SC Power Outage Report

In 2024, customers in Allendale County, SC went without power for an average of 74.5 hours, a total of 346K customer-hours (South Carolina average 50.1 hours). That ranks 13th worst of 46 South Carolina counties and 129th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
74.5
4,639 customers
Customer-hours out
346K
Peak customers out
4,541
Outages ≥1,000 out
2
0 of 10,000+ · 319 total
Longest outage
9d 9h
began September 27, 2024
Rank in state
13th/46
129th of 2,990 US

Compared with SC, the US and 2023

Allendale County, SC average hours without power per customer compared with state and national averages, 2024Allendale County 74.5 hours, South Carolina average 50.1 hours, US average 12.6 hours, Allendale County, 2023 5.7 hoursAllendale CountyAllendale County74.5hSouth Carolina averageSouth Carolina avera…50.1hUS averageUS average12.6hAllendale County, 2023Allendale County, 20…5.7h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Allendale County, SC customer-hours without power by month, 2024Jan 3,502, Feb 876, Mar 554, Apr 1,446, May 2,789, Jun 1,065, Jul 2,747, Aug 2,688, Sep 258K, Oct 69K, Nov 1,558, Dec 1,1570100k200k300k3,502Jan876Feb554Mar1,446Apr2,789May1,065Jun2,747Jul2,688Aug258KSep69KOct1,558Nov1,157Dec
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Customer-hours; September was the worst month.

Allendale County year over year

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Allendale County, SC: average hours without power per customer by year2015: 0.9h; 2016: 36.0h; 2017: 5.1h; 2018: 5.6h, coverage 99%; 2019: 2.7h, coverage 99%; 2020: 3.6h, coverage 99%; 2021: 3.9h, coverage 99%; 2022: 4.8h, coverage 99%; 2023: 5.7h; 2024: 74.5h; 2025: 5.5h0204060800%50%100%0.9h201536.0h20165.1h20175.6h20182.7h20193.6h20203.9h20214.8h20225.7h202374.5h20245.5h2025
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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 Allendale 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 27, 2024 03:30October 6, 2024 12:309d 9h4,541327K
2May 10, 2024 13:30May 10, 2024 18:154h 45m1,0391,660
3December 5, 2024 15:45December 5, 2024 22:457h909396
4February 6, 2024 15:15February 6, 2024 17:302h 15m801425
5July 6, 2024 20:15July 7, 2024 03:006h 45m717965
6January 9, 2024 16:45January 10, 2024 18:151d 1h6412,977
7August 6, 2024 02:30August 6, 2024 18:4516h 15m5071,138
8July 17, 2024 17:30July 17, 2024 18:1545m442332
9June 7, 2024 01:45June 7, 2024 02:3045m420129
10April 11, 2024 10:30April 12, 2024 03:0016h 30m3861,204

Outage episodes by size in 2024: 26 reached 100+ customers, 2 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 Allendale County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Dominion Energy South Carolina, Inc202431.8 hrs2.5281 min1.19
Edisto Electric Coop, Inc202439.2 hrs-4.9 hrs-
Palmetto Electric Coop Inc202410.5 hrs2.4432 min0.69

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 ÷ 4,639 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. Allendale County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Allendale 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/allendale-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON