massoutage

County annual report · FIPS 26125

2018 Oakland County, MI Power Outage Report

In 2018, customers in Oakland County, MI went without power for an average of 12.0 hours, a total of 7.7M customer-hours (Michigan average 10.0 hours). That ranks 22nd worst of 80 Michigan counties and 465th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
12.0
646,293 customers
Customer-hours out
7.7M
Peak customers out
70,985
Outages ≥1,000 out
32
4 of 10,000+ · 65 total
Longest outage
56d 7h
began September 15, 2018
Rank in state
22nd/80
465th of 2,798 US

Compared with MI, the US and 2017

Oakland County, MI average hours without power per customer compared with state and national averages, 2018Oakland County 12.0 hours, Michigan average 10.0 hours, US average 5.6 hours, Oakland County, 2017 3.6 hoursOakland CountyOakland County12.0hMichigan averageMichigan average10.0hUS averageUS average5.6hOakland County, 2017Oakland County, 20173.6h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Oakland County, MI customer-hours without power by month, 2018Jan 42K, Feb 95K, Mar 510K, Apr 3.1M, May 1.8M, Jun 352K, Jul 375K, Aug 211K, Sep 577K, Oct 426K, Nov 144K, Dec 69K01M2M3M4M42KJan95KFeb510KMar3.1MApr1.8MMay352KJun375KJul211KAug577KSep426KOct144KNov69KDec
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Customer-hours; April 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, 2018

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
1April 15, 2018 18:00May 14, 2018 14:1528d 20h70,9854.7M
2March 2, 2018 03:00March 6, 2018 01:003d 22h20,500408K
3September 15, 2018 04:00November 10, 2018 11:4556d 7h16,475864K
4February 6, 2018 11:45February 11, 2018 08:004d 20h11,15242K
5July 6, 2018 23:45July 18, 2018 23:1511d 23h9,131188K
6April 12, 2018 09:00April 15, 2018 13:303d 4h8,74828K
7March 1, 2018 14:15March 2, 2018 02:1512h8,30426K
8May 25, 2018 10:15July 6, 2018 23:0042d 12h6,945655K
9March 26, 2018 11:00March 31, 2018 08:004d 21h6,00741K
10July 19, 2018 00:15August 12, 2018 04:0024d 3h5,864181K

Outage episodes by size in 2018: 51 reached 100+ customers, 32 reached 1,000+ customers, 4 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 2018, 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)20186.8 hrs1.293.3 hrs1.02
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 91% of Michigan's customers in 2018; 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, 2018, 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/2018/michigan/oakland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON