massoutage

County annual report · FIPS 26099

2019 Macomb County, MI Power Outage Report

In 2019, customers in Macomb County, MI went without power for an average of 7.4 hours, a total of 3.0M customer-hours (Michigan average 12.7 hours). That ranks 50th worst of 83 Michigan counties and 760th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
7.4
404,553 customers
Customer-hours out
3.0M
Peak customers out
32,342
Outages ≥1,000 out
39
1 of 10,000+ · 140 total
Longest outage
36d 21h
began September 27, 2019
Rank in state
50th/83
760th of 2,945 US

Compared with MI, the US and 2018

Macomb County, MI average hours without power per customer compared with state and national averages, 2019Macomb County 7.4 hours, Michigan average 12.7 hours, US average 4.7 hours, Macomb County, 2018 5.1 hoursMacomb CountyMacomb County7.4hMichigan averageMichigan average12.7hUS averageUS average4.7hMacomb County, 2018Macomb County, 20185.1h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Macomb County, MI customer-hours without power by month, 2019Jan 34K, Feb 184K, Mar 33K, Apr 53K, May 77K, Jun 159K, Jul 1.6M, Aug 306K, Sep 193K, Oct 103K, Nov 231K, Dec 5,7340500k1M1.5M2M34KJan184KFeb33KMar53KApr77KMay159KJun1.6MJul306KAug193KSep103KOct231KNov5,734Dec
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Customer-hours; July was the worst month.

Macomb County year over year

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Macomb County, MI: average hours without power per customer by year2015: 3.0h; 2016: 1.2h; 2017: 2.8h; 2018: 5.1h, coverage 91%; 2019: 7.4h, coverage 96%; 2020: 5.8h, coverage 95%; 2021: 20.6h, coverage 95%; 2022: 7.3h, coverage 96%; 2023: 19.2h; 2024: 7.2h; 2025: 2.3h01020300%50%100%3.0h20151.2h20162.8h20175.1h20187.4h20195.8h202020.6h20217.3h202219.2h20237.2h20242.3h2025
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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 Michigan customers tracked each year.

Biggest outages in Macomb County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 16, 2019 22:00July 27, 2019 18:1510d 20h32,3421.4M
2November 25, 2019 12:00December 15, 2019 08:1519d 20h7,936174K
3September 27, 2019 12:15November 3, 2019 10:0036d 21h7,760139K
4August 7, 2019 12:00September 7, 2019 10:3030d 22h7,312304K
5July 27, 2019 19:00August 7, 2019 10:3010d 15h7,17373K
6February 24, 2019 09:30March 2, 2019 08:305d 23h6,22882K
7February 12, 2019 11:00February 13, 2019 15:301d 4h5,55054K
8June 23, 2019 08:00July 8, 2019 01:3014d 17h5,320186K
9June 1, 2019 08:15June 7, 2019 12:156d 4h5,31863K
10September 7, 2019 11:30September 27, 2019 11:0019d 23h5,110158K

Outage episodes by size in 2019: 74 reached 100+ customers, 39 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 Macomb County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
DTE Electric Company20188.1 hrs1.363.0 hrs1.04

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 96% of Michigan's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 404,553 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. Macomb County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Macomb County, MI annual power outage report, 2019, 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/2019/michigan/macomb-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON