massoutage

County annual report · FIPS 45005

2022 Allendale County, SC Power Outage Report

In 2022, customers in Allendale County, SC went without power for an average of 4.8 hours, a total of 22K customer-hours (South Carolina average 4.4 hours). That ranks 26th worst of 46 South Carolina counties and 1462nd of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
4.8
4,639 customers
Customer-hours out
22K
Peak customers out
1,715
Outages ≥1,000 out
1
0 of 10,000+ · 199 total
Longest outage
1d 15h
began January 3, 2022
Rank in state
26th/46
1462nd of 2,976 US

Compared with SC, the US and 2021

Allendale County, SC average hours without power per customer compared with state and national averages, 2022Allendale County 4.8 hours, South Carolina average 4.4 hours, US average 8.3 hours, Allendale County, 2021 3.9 hoursAllendale CountyAllendale County4.8hSouth Carolina averageSouth Carolina avera…4.4hUS averageUS average8.3hAllendale County, 2021Allendale County, 20…3.9h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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Allendale County, SC customer-hours without power by month, 2022Jan 4,934, Feb 8, Mar 882, Apr 1, May 7,581, Jun 4,690, Jul 1,414, Aug 276, Sep 311, Oct 99, Nov 14, Dec 2,15902k4k6k8k4,934Jan8Feb882Mar1Apr7,581May4,690Jun1,414Jul276Aug311Sep99Oct14Nov2,159Dec
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Customer-hours; May 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, 2022

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 6, 2022 21:15May 7, 2022 18:3021h 15m1,7157,075
2July 23, 2022 18:45July 23, 2022 21:152h 30m847506
3June 14, 2022 16:15June 15, 2022 05:3013h 15m5342,835
4July 8, 2022 19:15July 9, 2022 01:456h 30m433478
5December 24, 2022 11:30December 24, 2022 13:452h 15m31985
6December 28, 2022 12:30December 28, 2022 22:3010h3191,841
7January 3, 2022 09:15January 5, 2022 00:151d 15h2434,120
8March 24, 2022 14:45March 24, 2022 17:302h 45m238360
9June 18, 2022 00:15June 18, 2022 15:0014h 45m1561,380
10September 10, 2022 20:15September 10, 2022 20:4530m14171

Outage episodes by size in 2022: 15 reached 100+ customers, 1 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 2022, 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, Inc20223.9 hrs1.9378 min1.07
Edisto Electric Coop, Inc202214.0 hrs-4.9 hrs-
Palmetto Electric Coop Inc202254 min0.8329 min0.54

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of South Carolina's customers in 2022; 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, 2022, 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/2022/south-carolina/allendale-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON