massoutage

County annual report · FIPS 45083

2024 Spartanburg County, SC Power Outage Report

In 2024, customers in Spartanburg County, SC went without power for an average of 177.2 hours, a total of 26.2M customer-hours (South Carolina average 50.1 hours). That ranks 3rd worst of 46 South Carolina counties and 52nd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
177.2
147,558 customers
Customer-hours out
26.2M
Peak customers out
183,816
Outages ≥1,000 out
49
3 of 10,000+ · 579 total
Longest outage
20d 4h
began September 25, 2024
Rank in state
3rd/46
52nd of 2,990 US

Compared with SC, the US and 2023

Spartanburg County, SC average hours without power per customer compared with state and national averages, 2024Spartanburg County 177.2 hours, South Carolina average 50.1 hours, US average 12.6 hours, Spartanburg County, 2023 3.2 hoursSpartanburg CountySpartanburg County177.2hSouth Carolina averageSouth Carolina avera…50.1hUS averageUS average12.6hSpartanburg County, 2023Spartanburg County, …3.2h
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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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Spartanburg County, SC customer-hours without power by month, 2024Jan 53K, Feb 11K, Mar 26K, Apr 44K, May 46K, Jun 30K, Jul 71K, Aug 92K, Sep 14.4M, Oct 11.3M, Nov 35K, Dec 47K05M10M15M53KJan11KFeb26KMar44KApr46KMay30KJun71KJul92KAug14.4MSep11.3MOct35KNov47KDec
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Customer-hours; September was the worst month.

Spartanburg County year over year

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Spartanburg County, SC: average hours without power per customer by year2015: 2.3h; 2016: 3.9h; 2017: 5.8h; 2018: 10.6h, coverage 99%; 2019: 2.3h, coverage 99%; 2020: 11.4h, coverage 99%; 2021: 2.6h, coverage 99%; 2022: 3.4h, coverage 99%; 2023: 3.2h; 2024: 177.2h; 2025: 3.2h0501001502000%50%100%2.3h20153.9h20165.8h201710.6h20182.3h201911.4h20202.6h20213.4h20223.2h2023177.2h20243.2h2025
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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 Spartanburg 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 25, 2024 01:00October 15, 2024 05:3020d 4h183,81625.7M
2December 29, 2024 07:15December 30, 2024 12:151d 5h20,42024K
3March 13, 2024 13:15March 14, 2024 20:001d 6h10,5453,042
4March 19, 2024 03:15March 21, 2024 09:002d 5h7,5322,671
5July 29, 2024 19:45July 30, 2024 09:0013h 15m6,63817K
6March 25, 2024 12:45March 26, 2024 02:4514h5,3321,436
7June 24, 2024 11:45June 25, 2024 17:001d 5h4,6428,661
8April 19, 2024 12:00April 20, 2024 09:3021h 30m4,45912K
9April 12, 2024 16:00April 13, 2024 10:0018h3,88213K
10January 9, 2024 11:45January 11, 2024 00:451d 13h3,20517K

Outage episodes by size in 2024: 147 reached 100+ customers, 49 reached 1,000+ customers, 3 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 Spartanburg 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
Duke Energy Carolinas, LLC202478.6 hrs2.502.9 hrs1.26
Laurens Electric Coop, Inc2024138.5 hrs2.841.6 hrs1.14
Blue Ridge Electric Coop Inc - (SC)202488.2 hrs-3.2 hrs-
Duke Energy-----
Broad River Electric Coop, Inc-----
Lockhart Power Co-----
Greer Commission of Public Wks-----

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 ÷ 147,558 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. Spartanburg County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Spartanburg 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/spartanburg-county

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