massoutage

County annual report · FIPS 45025

2025 Chesterfield County, SC Power Outage Report

In 2025, customers in Chesterfield County, SC went without power for an average of 4.2 hours, a total of 68K customer-hours (South Carolina average 3.0 hours). That ranks 14th worst of 46 South Carolina counties and 1717th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
4.2
16,153 customers
Customer-hours out
68K
Peak customers out
3,357
Outages ≥1,000 out
5
0 of 10,000+ · 792 total
Longest outage
4d
began November 27, 2025
Rank in state
14th/46
1717th of 3,000 US

Compared with SC, the US and 2024

Chesterfield County, SC average hours without power per customer compared with state and national averages, 2025Chesterfield County 4.2 hours, South Carolina average 3.0 hours, US average 5.9 hours, Chesterfield County, 2024 7.3 hoursChesterfield CountyChesterfield County4.2hSouth Carolina averageSouth Carolina avera…3.0hUS averageUS average5.9hChesterfield County, 2024Chesterfield County,…7.3h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Chesterfield County, SC customer-hours without power by month, 2025Jan 979, Feb 6,360, Mar 2,405, Apr 3,651, May 16K, Jun 12K, Jul 3,821, Aug 9,842, Sep 2,862, Oct 1,976, Nov 5,124, Dec 2,46605k10k15k20k979Jan6,360Feb2,405Mar3,651Apr16KMay12KJun3,821Jul9,842Aug2,862Sep1,976Oct5,124Nov2,466Dec
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Customer-hours; May was the worst month.

Chesterfield County year over year

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Chesterfield County, SC: average hours without power per customer by year2015: 7.6h; 2016: 29.9h; 2017: 2.4h; 2018: 16.5h, coverage 99%; 2019: 4.3h, coverage 99%; 2020: 9.3h, coverage 99%; 2021: 4.7h, coverage 99%; 2022: 13.0h, coverage 99%; 2023: 6.4h; 2024: 7.3h; 2025: 4.2h01020300%50%100%7.6h201529.9h20162.4h201716.5h20184.3h20199.3h20204.7h202113.0h20226.4h20237.3h20244.2h2025
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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 Chesterfield County, 2025

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
1May 10, 2025 07:00May 10, 2025 11:304h 30m3,3578,516
2November 22, 2025 23:30November 23, 2025 03:304h1,9441,942
3February 16, 2025 13:30February 17, 2025 05:4516h 15m1,4404,546
4April 18, 2025 12:45April 18, 2025 19:156h 30m1,1511,168
5June 5, 2025 17:00June 6, 2025 00:457h 45m1,0033,334
6August 11, 2025 13:00August 11, 2025 15:302h 30m895752
7November 5, 2025 17:15November 5, 2025 19:152h878444
8May 4, 2025 04:45May 4, 2025 15:4511h8462,142
9August 25, 2025 02:30August 25, 2025 08:456h 15m8364,393
10September 26, 2025 10:45September 26, 2025 15:304h 45m758796

Outage episodes by size in 2025: 67 reached 100+ customers, 5 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 Chesterfield County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Progress - (NC)202417.2 hrs1.702.2 hrs1.22
MPD Electric Cooperative20243.5 hrs1.631.5 hrs1.00
Lynches River Elec Coop, Inc20248.6 hrs3.202.7 hrs1.90
Duke Energy-----

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 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 16,153 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. Chesterfield County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Chesterfield County, SC annual power outage report, 2025, 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/2025/south-carolina/chesterfield-county

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