massoutage

County annual report · FIPS 01009

2021 Blount County, AL Power Outage Report

In 2021, customers in Blount County, AL went without power for an average of 5.3 hours, a total of 144K customer-hours (Alabama average 4.6 hours). That ranks 30th worst of 65 Alabama counties and 1277th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
5.3
27,074 customers
Customer-hours out
144K
Peak customers out
6,219
Outages ≥1,000 out
7
0 of 10,000+ · 877 total
Longest outage
2d 5h
began May 9, 2021
Rank in state
30th/65
1277th of 2,974 US

Compared with AL, the US and 2020

Blount County, AL average hours without power per customer compared with state and national averages, 2021Blount County 5.3 hours, Alabama average 4.6 hours, US average 8.9 hours, Blount County, 2020 20.8 hoursBlount CountyBlount County5.3hAlabama averageAlabama average4.6hUS averageUS average8.9hBlount County, 2020Blount County, 202020.8h
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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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Blount County, AL customer-hours without power by month, 2021Jan 11K, Feb 5,344, Mar 30K, Apr 11K, May 20K, Jun 15K, Jul 16K, Aug 8,753, Sep 8,380, Oct 3,988, Nov 4,001, Dec 11K010k20k30k11KJan5,344Feb30KMar11KApr20KMay15KJun16KJul8,753Aug8,380Sep3,988Oct4,001Nov11KDec
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Customer-hours; March was the worst month.

Blount County year over year

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Blount County, AL: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.4h; 2018: 7.2h, coverage 79%; 2019: 6.7h, coverage 81%; 2020: 20.8h, coverage 81%; 2021: 5.3h, coverage 81%; 2022: 8.1h, coverage 81%; 2023: 9.8h; 2024: 6.5h; 2025: 11.5h01020300%50%100%n/a2015n/a20160.4h20177.2h20186.7h201920.8h20205.3h20218.1h20229.8h20236.5h202411.5h2025
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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 Blount County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 13, 2021 17:15September 13, 2021 23:456h 30m6,2192,938
2May 7, 2021 00:45May 7, 2021 18:1517h 30m6,1106,236
3November 16, 2021 19:30November 16, 2021 23:304h3,003766
4March 25, 2021 08:30March 26, 2021 21:451d 13h1,68010K
5January 25, 2021 21:45January 26, 2021 19:4522h1,5022,937
6July 6, 2021 15:15July 6, 2021 19:304h 15m1,252950
7December 30, 2021 02:15December 31, 2021 00:1522h1,1386,005
8July 26, 2021 14:30July 26, 2021 22:007h 30m9431,114
9January 15, 2021 12:30January 16, 2021 02:3014h9412,522
10April 24, 2021 19:15April 25, 2021 09:0013h 45m9015,773

Outage episodes by size in 2021: 84 reached 100+ customers, 7 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 Blount County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Alabama Power Co-----

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 ÷ 27,074 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. Blount County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Blount 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/). https://massoutage.com/reports/2021/alabama/blount-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON