massoutage

County annual report · FIPS 26125

2020 Oakland County, MI Power Outage Report

In 2020, customers in Oakland County, MI went without power for an average of 7.4 hours, a total of 4.8M customer-hours (Michigan average 9.8 hours). That ranks 51st worst of 83 Michigan counties and 1034th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
7.4
646,293 customers
Customer-hours out
4.8M
Peak customers out
156,519
Outages ≥1,000 out
30
5 of 10,000+ · 65 total
Longest outage
104d 11h
began June 29, 2020
Rank in state
51st/83
1034th of 3,019 US

Compared with MI, the US and 2019

Oakland County, MI average hours without power per customer compared with state and national averages, 2020Oakland County 7.4 hours, Michigan average 9.8 hours, US average 8.7 hours, Oakland County, 2019 12.1 hoursOakland CountyOakland County7.4hMichigan averageMichigan average9.8hUS averageUS average8.7hOakland County, 2019Oakland County, 201912.1h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Oakland County, MI customer-hours without power by month, 2020Jan 72K, Feb 103K, Mar 163K, Apr 184K, May 158K, Jun 473K, Jul 1.1M, Aug 401K, Sep 138K, Oct 183K, Nov 1.7M, Dec 64K0500k1M1.5M2M72KJan103KFeb163KMar184KApr158KMay473KJun1.1MJul401KAug138KSep183KOct1.7MNov64KDec
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Customer-hours; November 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, 2020

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
1February 10, 2020 02:15February 17, 2020 02:457d156,51957K
2June 2, 2020 17:45June 29, 2020 21:1527d 3h52,719459K
3October 12, 2020 12:00November 29, 2020 00:4547d 12h52,6751.8M
4June 29, 2020 22:30October 12, 2020 10:00104d 11h22,5151.7M
5March 17, 2020 12:30March 26, 2020 12:309d10,11453K
6February 2, 2020 06:30February 3, 2020 07:451d 1h9,7626,402
7March 31, 2020 09:45April 7, 2020 10:007d6,74759K
8April 7, 2020 12:00April 15, 2020 09:307d 21h6,53341K
9May 20, 2020 11:15June 1, 2020 07:1511d 20h6,100102K
10March 28, 2020 10:15March 31, 2020 08:152d 22h5,98844K

Outage episodes by size in 2020: 44 reached 100+ customers, 30 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 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Consumers Energy Co - (MI)20208.5 hrs1.353.2 hrs1.03
DTE Electric Company20205.9 hrs1.292.4 hrs1.01

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Michigan's customers in 2020; 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, 2020, 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/2020/michigan/oakland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON