massoutage

County annual report · FIPS 01015

2021 Calhoun County, AL Power Outage Report

In 2021, customers in Calhoun County, AL went without power for an average of 5.5 hours, a total of 341K customer-hours (Alabama average 4.6 hours). That ranks 28th worst of 65 Alabama counties and 1243rd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
5.5
62,182 customers
Customer-hours out
341K
Peak customers out
9,888
Outages ≥1,000 out
15
0 of 10,000+ · 879 total
Longest outage
8d 3h
began March 25, 2021
Rank in state
28th/65
1243rd of 2,974 US

Compared with AL, the US and 2020

Calhoun County, AL average hours without power per customer compared with state and national averages, 2021Calhoun County 5.5 hours, Alabama average 4.6 hours, US average 8.9 hours, Calhoun County, 2020 36.0 hoursCalhoun CountyCalhoun County5.5hAlabama averageAlabama average4.6hUS averageUS average8.9hCalhoun County, 2020Calhoun County, 202036.0h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Calhoun County, AL customer-hours without power by month, 2021Jan 6,789, Feb 11K, Mar 155K, Apr 31K, May 27K, Jun 29K, Jul 15K, Aug 13K, Sep 16K, Oct 14K, Nov 6,768, Dec 17K050k100k150k200k6,789Jan11KFeb155KMar31KApr27KMay29KJun15KJul13KAug16KSep14KOct6,768Nov17KDec
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Customer-hours; March was the worst month.

Calhoun County year over year

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Calhoun County, AL: average hours without power per customer by year2015: no data; 2016: no data; 2017: 4.0h; 2018: 7.4h, coverage 79%; 2019: 3.2h, coverage 81%; 2020: 36.0h, coverage 81%; 2021: 5.5h, coverage 81%; 2022: 6.1h, coverage 81%; 2023: 6.6h; 2024: 5.9h; 2025: 8.6h0102030400%50%100%n/a2015n/a20164.0h20177.4h20183.2h201936.0h20205.5h20216.1h20226.6h20235.9h20248.6h2025
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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 Alabama customers tracked each year.

Biggest outages in Calhoun County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 25, 2021 10:30April 2, 2021 13:308d 3h9,888144K
2April 24, 2021 10:00April 26, 2021 02:451d 16h4,75423K
3June 9, 2021 17:45June 10, 2021 18:151d2,4425,966
4July 31, 2021 19:15August 1, 2021 10:0014h 45m1,7523,096
5May 19, 2021 12:00May 20, 2021 01:3013h 30m1,646635
6April 14, 2021 12:15April 14, 2021 21:008h 45m1,446565
7September 5, 2021 05:15September 5, 2021 10:455h 30m1,4373,610
8May 4, 2021 17:15May 6, 2021 02:301d 9h1,40411K
9June 7, 2021 11:00June 8, 2021 03:0016h1,276983
10September 28, 2021 12:15September 29, 2021 00:4512h 30m1,2123,255

Outage episodes by size in 2021: 125 reached 100+ customers, 15 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 Calhoun County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Coosa Valley Electric Coop Inc20215.1 hrs1.952.2 hrs1.58
Alabama Power Co-----
Cherokee Electric Coop - (AL)-----
City of Piedmont - (AL)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 81% of Alabama's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 62,182 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. Calhoun County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Calhoun County, AL annual power outage report, 2021, 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/2021/alabama/calhoun-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON