massoutage

County annual report · FIPS 26125

2015 Oakland County, MI Power Outage Report

In 2015, customers in Oakland County, MI went without power for an average of 5.3 hours, a total of 3.4M customer-hours (Michigan average 6.8 hours). That ranks 42nd worst of 80 Michigan counties and 526th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
5.3
646,293 customers
Customer-hours out
3.4M
Peak customers out
30,350
Outages ≥1,000 out
61
5 of 10,000+ · 184 total
Longest outage
22d 6h
began June 7, 2015
Rank in state
42nd/80
526th of 2,484 US

Compared with MI, the US

Oakland County, MI average hours without power per customer compared with state and national averages, 2015Oakland County 5.3 hours, Michigan average 6.8 hours, US average 2.9 hoursOakland CountyOakland County5.3hMichigan 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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Oakland County, MI customer-hours without power by month, 2015Jan 78K, Feb 29K, Mar 97K, Apr 135K, May 298K, Jun 884K, Jul 487K, Aug 387K, Sep 342K, Oct 223K, Nov 360K, Dec 96K0250k500k750k1M78KJan29KFeb97KMar135KApr298KMay884KJun487KJul387KAug342KSep223KOct360KNov96KDec
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Customer-hours; June was the worst month.

Oakland County year over year

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Oakland County, MI: average hours without power per customer by year2015: 5.3h; 2016: 1.1h; 2017: 3.6h; 2018: 12.0h, coverage 91%; 2019: 12.1h, coverage 96%; 2020: 7.4h, coverage 95%; 2021: 41.0h, coverage 95%; 2022: 8.9h, coverage 96%; 2023: 31.3h; 2024: 10.3h; 2025: 3.1h02040600%50%100%5.3h20151.1h20163.6h201712.0h201812.1h20197.4h202041.0h20218.9h202231.3h202310.3h20243.1h2025
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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 Oakland County, 2015

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
1June 7, 2015 02:15June 29, 2015 09:0022d 6h30,350840K
2April 18, 2015 11:00April 19, 2015 15:001d 4h13,65822K
3November 9, 2015 07:00November 18, 2015 15:009d 8h11,59890K
4November 18, 2015 15:45December 5, 2015 07:3016d 15h11,095205K
5July 19, 2015 03:00August 4, 2015 17:3016d 14h11,019551K
6May 25, 2015 11:30May 28, 2015 14:303d 3h9,874119K
7September 1, 2015 17:15September 18, 2015 07:0016d 13h9,874262K
8November 3, 2015 05:45November 7, 2015 20:004d 14h9,55666K
9October 19, 2015 12:00October 27, 2015 07:007d 19h9,20450K
10August 14, 2015 15:30August 21, 2015 23:457d 8h7,752195K

Outage episodes by size in 2015: 104 reached 100+ customers, 61 reached 1,000+ customers, 5 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 Oakland 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
Consumers Energy Co - (MI)20157.3 hrs1.183.0 hrs0.98
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 ÷ 646,293 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. Oakland County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Oakland 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/oakland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON