massoutage

County annual report · FIPS 12086

2021 Miami-Dade County, FL Power Outage Report

In 2021, customers in Miami-Dade County, FL went without power for an average of 2.6 hours, a total of 2.5M customer-hours (Florida average 1.9 hours). That ranks 27th worst of 67 Florida counties and 1991st of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
2.6
951,391 customers
Customer-hours out
2.5M
Peak customers out
21,046
Outages ≥1,000 out
8
1 of 10,000+ · 10 total
Longest outage
222d 13h
began March 12, 2021
Rank in state
27th/67
1991st of 2,974 US

Compared with FL, the US and 2020

Miami-Dade County, FL average hours without power per customer compared with state and national averages, 2021Miami-Dade County 2.6 hours, Florida average 1.9 hours, US average 8.9 hours, Miami-Dade County, 2020 3.0 hoursMiami-Dade CountyMiami-Dade County2.6hFlorida averageFlorida average1.9hUS averageUS average8.9hMiami-Dade County, 2020Miami-Dade County, 2…3.0h
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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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Miami-Dade County, FL customer-hours without power by month, 2021Jan 90K, Feb 127K, Mar 202K, Apr 240K, May 179K, Jun 281K, Jul 285K, Aug 260K, Sep 301K, Oct 214K, Nov 170K, Dec 143K0100k200k300k400k90KJan127KFeb202KMar240KApr179KMay281KJun285KJul260KAug301KSep214KOct170KNov143KDec
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Customer-hours; September was the worst month.

Miami-Dade County year over year

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Miami-Dade County, FL: average hours without power per customer by year2015: 2.9h; 2016: 3.0h; 2017: 89.0h; 2018: 2.6h, coverage 97%; 2019: 2.5h, coverage 97%; 2020: 3.0h, coverage 97%; 2021: 2.6h, coverage 98%; 2022: 3.5h, coverage 98%; 2023: 4.1h; 2024: 3.2h; 2025: 4.7h02550751000%50%100%2.9h20153.0h201689.0h20172.6h20182.5h20193.0h20202.6h20213.5h20224.1h20233.2h20244.7h2025
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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 Florida customers tracked each year.

Biggest outages in Miami-Dade County, 2021

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
1March 12, 2021 12:15October 21, 2021 02:00222d 13h21,0461.8M
2October 21, 2021 05:16November 7, 2021 19:4517d 14h7,483150K
3November 26, 2021 10:45December 29, 2021 03:3032d 16h6,099156K
4February 5, 2021 11:45March 12, 2021 10:1534d 22h6,013151K
5November 8, 2021 17:00November 26, 2021 09:3017d 16h5,44782K
6January 13, 2021 07:45February 1, 2021 10:4519d 3h4,18653K
7February 1, 2021 12:15February 5, 2021 08:303d 20h4,01426K
8January 1, 2021 00:00January 13, 2021 06:3012d 6h2,37337K
9December 29, 2021 04:15December 31, 2021 00:151d 20h6993,962
10October 21, 2021 03:15October 21, 2021 04:151h3417

Outage episodes by size in 2021: 9 reached 100+ customers, 8 reached 1,000+ customers, 1 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 Miami-Dade 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
Florida Power & Light Co202155 min0.5845 min0.51
City of Homestead - (FL)202135 min0.3535 min0.35

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Florida's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 951,391 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. Miami-Dade County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Miami-Dade County, FL 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/florida/miami-dade-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON