massoutage

County annual report · FIPS 26163

2018 Wayne County, MI Power Outage Report

In 2018, customers in Wayne County, MI went without power for an average of 34.5 hours, a total of 15.3M customer-hours (Michigan average 10.0 hours). That ranks 8th worst of 80 Michigan counties and 171st of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
34.5
441,528 customers
Customer-hours out
15.3M
Peak customers out
170,309
Outages ≥1,000 out
31
5 of 10,000+ · 49 total
Longest outage
56d 7h
began September 15, 2018
Rank in state
8th/80
171st of 2,798 US

Compared with MI, the US and 2017

Wayne County, MI average hours without power per customer compared with state and national averages, 2018Wayne County 34.5 hours, Michigan average 10.0 hours, US average 5.6 hours, Wayne County, 2017 10.3 hoursWayne CountyWayne County34.5hMichigan averageMichigan average10.0hUS averageUS average5.6hWayne County, 2017Wayne County, 201710.3h
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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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Wayne County, MI customer-hours without power by month, 2018Jan 57K, Feb 93K, Mar 555K, Apr 7.6M, May 3.1M, Jun 635K, Jul 597K, Aug 949K, Sep 868K, Oct 433K, Nov 290K, Dec 67K02M4M6M8M57KJan93KFeb555KMar7.6MApr3.1MMay635KJun597KJul949KAug868KSep433KOct290KNov67KDec
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Customer-hours; April was the worst month.

Wayne County year over year

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Wayne County, MI: average hours without power per customer by year2015: 14.0h; 2016: 0.9h; 2017: 10.3h; 2018: 34.5h, coverage 91%; 2019: 27.4h, coverage 96%; 2020: 25.1h, coverage 95%; 2021: 79.4h, coverage 95%; 2022: 25.2h, coverage 96%; 2023: 89.2h; 2024: 11.4h; 2025: 3.9h02550751000%50%100%14.0h20150.9h201610.3h201734.5h201827.4h201925.1h202079.4h202125.2h202289.2h202311.4h20243.9h2025
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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 Wayne County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 15, 2018 18:00May 14, 2018 13:4528d 19h170,30910.2M
2April 9, 2018 10:30April 15, 2018 13:306d 3h60,20485K
3March 2, 2018 03:00March 6, 2018 01:003d 22h20,906467K
4July 19, 2018 00:15August 12, 2018 04:0024d 3h19,1091.0M
5September 15, 2018 04:00November 10, 2018 11:4556d 7h12,4801.1M
6August 18, 2018 13:15September 14, 2018 21:4527d 8h9,632472K
7May 25, 2018 10:15July 6, 2018 23:0042d 12h9,2321.1M
8February 20, 2018 23:30March 2, 2018 02:159d 2h7,41863K
9November 14, 2018 01:45December 5, 2018 11:0021d 9h7,082156K
10February 18, 2018 13:15February 20, 2018 21:452d 8h5,46636K

Outage episodes by size in 2018: 39 reached 100+ customers, 31 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 Wayne 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
DTE Electric Company20188.1 hrs1.363.0 hrs1.04
Wyandotte Municipal Serv Comm-----

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 ÷ 441,528 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. Wayne County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Wayne 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/wayne-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON