massoutage

County annual report · FIPS 01089

2020 Madison County, AL Power Outage Report

In 2020, customers in Madison County, AL went without power for an average of 3.3 hours, a total of 652K customer-hours (Alabama average 22.1 hours). That ranks 56th worst of 65 Alabama counties and 1790th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
3.3
198,793 customers
Customer-hours out
652K
Peak customers out
36,965
Outages ≥1,000 out
72
9 of 10,000+ · 1,159 total
Longest outage
1d 21h
began May 3, 2020
Rank in state
56th/65
1790th of 3,019 US

Compared with AL, the US and 2019

Madison County, AL average hours without power per customer compared with state and national averages, 2020Madison County 3.3 hours, Alabama average 22.1 hours, US average 8.7 hours, Madison County, 2019 1.4 hoursMadison CountyMadison County3.3hAlabama averageAlabama average22.1hUS averageUS average8.7hMadison County, 2019Madison County, 20191.4h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Madison County, AL customer-hours without power by month, 2020Jan 51K, Feb 16K, Mar 42K, Apr 22K, May 68K, Jun 85K, Jul 45K, Aug 230K, Sep 62K, Oct 18K, Nov 6,183, Dec 7,5770100k200k300k51KJan16KFeb42KMar22KApr68KMay85KJun45KJul230KAug62KSep18KOct6,183Nov7,577Dec
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Customer-hours; August was the worst month.

Madison County year over year

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Madison County, AL: average hours without power per customer by year2015: 0.7h; 2016: 1.6h; 2017: 2.9h; 2018: 1.5h, coverage 79%; 2019: 1.4h, coverage 81%; 2020: 3.3h, coverage 81%; 2021: 1.4h, coverage 81%; 2022: 3.3h, coverage 81%; 2023: 4.6h; 2024: 3.4h; 2025: 3.0h02460%50%100%0.7h20151.6h20162.9h20171.5h20181.4h20193.3h20201.4h20213.3h20224.6h20233.4h20243.0h2025
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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 Madison County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 24, 2020 15:30August 24, 2020 20:455h 15m36,965102K
2August 24, 2020 00:15August 24, 2020 05:455h 30m35,28052K
3June 29, 2020 02:30June 29, 2020 07:004h 30m34,64052K
4August 11, 2020 09:30August 11, 2020 11:452h 15m26,64727K
5March 25, 2020 00:00March 25, 2020 09:009h16,12134K
6September 27, 2020 05:15September 27, 2020 11:156h14,70237K
7August 6, 2020 06:45August 6, 2020 08:301h 45m14,59126K
8January 11, 2020 11:15January 13, 2020 00:451d 13h13,17336K
9May 3, 2020 21:45May 5, 2020 19:001d 21h10,12455K
10June 30, 2020 21:30July 1, 2020 13:4516h 15m8,78516K

Outage episodes by size in 2020: 111 reached 100+ customers, 72 reached 1,000+ customers, 9 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 Madison County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
City of Huntsville - (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 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 198,793 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. Madison County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Madison County, AL annual power outage report, 2020, 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/2020/alabama/madison-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON