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Generator Installation · Michigan
A generator must connect through a transfer switch or an approved interlock so it can never feed power back into utility lines. Electricians install standby generators, portable generator inlets with interlocks, and the transfer equipment for both.
Cold winters, older city housing and summer storms bring panel, rewiring and generator work.
Across the Midwest, homes deal with cold winters, severe thunderstorms and tornado season. Permit offices, utilities and housing stock differ by city, which affects how generator installation is planned and scheduled. These local guides cover the Michigan cities where we have written specific notes.
The August 2023 storms left hundreds of thousands of DTE customers without power, some for days, and Detroit basements depend on sump pumps that stop when the power does. Backup for the sump pump, furnace and refrigerator is the usual goal.
Utility: DTE Energy
Ice storms and summer windstorms bring outages to Grand Rapids, and losing power means losing the sump pump in a storm or the furnace blower in winter. A generator inlet with an interlock lets a portable generator run those essentials safely without backfeeding Consumers Energy's lines.
Utility: Consumers Energy
The December 2013 ice storm left many Lansing homes without power for days in the cold, and plenty of households added backup power afterward. Priorities are usually the furnace blower, the sump pump and the refrigerator.
Utility: Lansing Board of Water and Light (some nearby areas: Consumers Energy)
Ann Arbor's mature trees bring down lines during summer storms and winter ice, and outages in established neighborhoods such as Burns Park and the Old West Side can last days. Basements with sump pumps are common, so backup for the pump, furnace and refrigerator is the usual goal.
Utility: DTE Energy
1. Size the load
Circuits that must stay powered are listed and the generator sized.
2. Choose the connection
Inlet and interlock, manual transfer switch or automatic transfer switch.
3. Install and inspect
Permitted installation, gas connection by a licensed fitter where needed, and inspection.
Electricians set their own prices; local permit fees and utility requirements add to these factors.
Permits come from the city or county where the home is. For example: Detroit: Inside the city, electrical permits come from the Buildings, Safety Engineering and Environmental Department (BSEED); suburbs issue their own. Grand Rapids: Electrical permits in Grand Rapids come from the city's Development Center; surrounding cities and townships issue their own. Lansing: Electrical permits inside city limits come from the City of Lansing's building safety office; East Lansing and nearby townships issue their own. Ann Arbor: Electrical permits come from the City of Ann Arbor's building services; nearby townships and Washtenaw County communities issue their own.
Detroit: DTE Energy. Grand Rapids: Consumers Energy. Lansing: Lansing Board of Water and Light (some nearby areas: Consumers Energy). Ann Arbor: DTE Energy.
Listed interlock kits are accepted in many jurisdictions when installed with a permit. Your electrician will know the local rule.
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