massoutage

County annual report · FIPS 45025

2018 Chesterfield County, SC Power Outage Report

In 2018, customers in Chesterfield County, SC went without power for an average of 16.5 hours, a total of 267K customer-hours (South Carolina average 5.2 hours). That ranks 4th worst of 46 South Carolina counties and 339th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
16.5
16,153 customers
Customer-hours out
267K
Peak customers out
5,354
Outages ≥1,000 out
6
0 of 10,000+ · 639 total
Longest outage
5d 8h
began September 15, 2018
Rank in state
4th/46
339th of 2,798 US

Compared with SC, the US and 2017

Chesterfield County, SC average hours without power per customer compared with state and national averages, 2018Chesterfield County 16.5 hours, South Carolina average 5.2 hours, US average 5.6 hours, Chesterfield County, 2017 2.4 hoursChesterfield CountyChesterfield County16.5hSouth Carolina averageSouth Carolina avera…5.2hUS averageUS average5.6hChesterfield County, 2017Chesterfield County,…2.4h
Use the arrow keys to read values.
Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Chesterfield County, SC customer-hours without power by month, 2018Jan 1,763, Feb 3,909, Mar 3,306, Apr 3,576, May 1,993, Jun 5,490, Jul 4,004, Aug 10K, Sep 203K, Oct 26K, Nov 2,493, Dec 1,8570100k200k300k1,763Jan3,909Feb3,306Mar3,576Apr1,993May5,490Jun4,004Jul10KAug203KSep26KOct2,493Nov1,857Dec
Use the arrow keys to read values.
Customer-hours; September was the worst month.

Chesterfield County year over year

CSVJSON
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
Use the arrow keys to read values.
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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 15, 2018 04:00September 20, 2018 12:005d 8h5,354193K
2October 11, 2018 12:00October 12, 2018 21:001d 9h4,04724K
3August 18, 2018 02:45August 18, 2018 05:302h 45m2,8937,070
4September 14, 2018 05:30September 14, 2018 21:4516h 15m2,5666,685
5March 2, 2018 13:15March 2, 2018 15:302h 15m1,6721,267
6June 23, 2018 00:15June 23, 2018 14:0013h 45m1,0782,808
7November 27, 2018 09:00November 27, 2018 11:302h 30m7851,569
8July 22, 2018 02:45July 22, 2018 06:454h7521,389
9August 8, 2018 09:15August 8, 2018 11:152h718724
10September 28, 2018 03:15September 28, 2018 08:455h 30m7071,112

Outage episodes by size in 2018: 48 reached 100+ customers, 6 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Progress - (NC)201843.0 hrs2.712.6 hrs1.33
Lynches River Elec Coop, Inc201849.1 hrs2.401.6 hrs1.10
Duke Energy-----
MPD Electric Cooperative-----

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 2018; 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, 2018, 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/2018/south-carolina/chesterfield-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON