massoutage

County annual report · FIPS 26099

2015 Macomb County, MI Power Outage Report

In 2015, customers in Macomb County, MI went without power for an average of 3.0 hours, a total of 1.2M customer-hours (Michigan average 6.8 hours). That ranks 59th worst of 80 Michigan counties and 915th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
3.0
404,553 customers
Customer-hours out
1.2M
Peak customers out
11,372
Outages ≥1,000 out
53
1 of 10,000+ · 378 total
Longest outage
11d 7h
began July 24, 2015
Rank in state
59th/80
915th of 2,484 US

Compared with MI, the US

Macomb County, MI average hours without power per customer compared with state and national averages, 2015Macomb County 3.0 hours, Michigan average 6.8 hours, US average 2.9 hoursMacomb CountyMacomb County3.0hMichigan averageMichigan average6.8hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Macomb County, MI customer-hours without power by month, 2015Jan 9,996, Feb 14K, Mar 63K, Apr 67K, May 83K, Jun 275K, Jul 121K, Aug 187K, Sep 144K, Oct 36K, Nov 144K, Dec 76K0100k200k300k9,996Jan14KFeb63KMar67KApr83KMay275KJun121KJul187KAug144KSep36KOct144KNov76KDec
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Customer-hours; June 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, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 2, 2015 12:30September 11, 2015 09:008d 20h11,372126K
2June 26, 2015 11:15June 29, 2015 09:002d 21h9,704228K
3August 14, 2015 15:30August 21, 2015 23:457d 8h7,318120K
4November 18, 2015 15:45November 25, 2015 03:006d 11h5,877112K
5March 3, 2015 16:15March 5, 2015 16:302d5,24935K
6April 14, 2015 19:00April 16, 2015 10:451d 15h5,04730K
7July 24, 2015 10:30August 4, 2015 17:3011d 7h4,43177K
8June 9, 2015 16:00June 13, 2015 06:003d 14h4,3519,524
9July 17, 2015 12:15July 19, 2015 01:451d 13h4,14119K
10December 26, 2015 09:15December 31, 2015 00:154d 15h3,74032K

Outage episodes by size in 2015: 127 reached 100+ customers, 53 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 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
DTE Electric Company20154.6 hrs1.003.1 hrs0.91

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Michigan's customers in 2015; 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, 2015, 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/2015/michigan/macomb-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON