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Generator Installation · Idaho
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.
Population growth around Boise and cold winters drive new circuits, panel upgrades and heat-related loads.
Across the Mountain West, homes deal with dry air, large temperature swings, wildfire seasons and heavy snow at elevation. Permit offices, utilities and housing stock differ by city, which affects how generator installation is planned and scheduled. These local guides cover the Idaho cities where we have written specific notes.
Boise outages are less frequent than in many cities, but winter storms, summer windstorms and wildfire-related shutoffs can still cut power, and Idaho Power has a public safety power shutoff plan for high fire-risk areas in the foothills. Homes on the Boise Bench and in the foothills often want backup for the furnace, refrigerator and well pumps.
Utility: Idaho Power
Winter storms in the Treasure Valley, like the heavy snow of January 2017, can cause outages in Nampa during cold weather, and summer windstorms and heat waves bring their own. Homes on acreage often rely on well pumps, which stop when the power goes out.
Utility: Idaho Power
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: Boise: Electrical permits inside city limits come from the City of Boise's Planning and Development Services; elsewhere in Idaho the state often handles electrical permits. Nampa: Electrical permits inside city limits come from the City of Nampa's building department; areas without a local program are handled by the state.
Boise: Idaho Power. Nampa: Idaho Power.
Listed interlock kits are accepted in many jurisdictions when installed with a permit. Your electrician will know the local rule.
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