massoutage

County annual report · FIPS 28127

2024 Simpson County, MS Power Outage Report

In 2024, customers in Simpson County, MS went without power for an average of 21.5 hours, a total of 340K customer-hours (Mississippi average 9.2 hours). That ranks 15th worst of 82 Mississippi counties and 476th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
21.5
15,818 customers
Customer-hours out
340K
Peak customers out
6,225
Outages ≥1,000 out
17
0 of 10,000+ · 788 total
Longest outage
3d 8h
began December 28, 2024
Rank in state
15th/82
476th of 2,990 US

Compared with MS, the US and 2023

Simpson County, MS average hours without power per customer compared with state and national averages, 2024Simpson County 21.5 hours, Mississippi average 9.2 hours, US average 12.6 hours, Simpson County, 2023 30.9 hoursSimpson CountySimpson County21.5hMississippi averageMississippi average9.2hUS averageUS average12.6hSimpson County, 2023Simpson County, 202330.9h
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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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Simpson County, MS customer-hours without power by month, 2024Jan 19K, Feb 3,021, Mar 5,726, Apr 9,968, May 23K, Jun 24K, Jul 9,373, Aug 11K, Sep 33K, Oct 2,319, Nov 13K, Dec 188K050k100k150k200k19KJan3,021Feb5,726Mar9,968Apr23KMay24KJun9,373Jul11KAug33KSep2,319Oct13KNov188KDec
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Customer-hours; December was the worst month.

Simpson County year over year

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Simpson County, MS: average hours without power per customer by year2015: 3.3h; 2016: 9.6h; 2017: 16.7h; 2018: 4.1h, coverage 66%; 2019: 13.3h, coverage 74%; 2020: 11.5h, coverage 77%; 2021: 25.7h, coverage 77%; 2022: 10.1h, coverage 77%; 2023: 30.9h; 2024: 21.5h; 2025: 10.6h0102030400%50%100%3.3h20159.6h201616.7h20174.1h201813.3h201911.5h202025.7h202110.1h202230.9h202321.5h202410.6h2025
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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 Mississippi customers tracked each year.

Biggest outages in Simpson County, 2024

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 28, 2024 15:30January 1, 2025 00:003d 8h6,225182K
2March 25, 2024 15:00March 25, 2024 15:1515m3,852963
3September 12, 2024 02:15September 13, 2024 17:001d 14h3,68425K
4June 5, 2024 13:00June 7, 2024 00:001d 11h3,27016K
5May 10, 2024 04:15May 11, 2024 13:451d 9h1,94411K
6August 14, 2024 21:00August 15, 2024 18:0021h1,8042,487
7January 8, 2024 20:30January 9, 2024 20:451d1,7776,703
8November 20, 2024 15:15November 22, 2024 02:151d 11h1,6068,626
9September 6, 2024 10:30September 6, 2024 21:1510h 45m1,1772,903
10August 2, 2024 15:30August 2, 2024 16:301h1,129566

Outage episodes by size in 2024: 79 reached 100+ customers, 17 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 Simpson 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
Entergy Mississippi LLC202411.5 hrs2.315.5 hrs1.75
Southern Pine Electric Cooperative202416.7 hrs6.295.4 hrs4.48

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 Mississippi's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 15,818 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. Simpson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Simpson County, MS 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/mississippi/simpson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON