Home / Compare / Standby vs Portable Generator

Standby vs Portable Generator

A standby generator is hardwired into your house and fires up on its own the moment the grid drops. A portable generator is a cheaper, unhooked unit you wheel out and connect when you need it. The decision comes down to how often your power actually goes out, what you're willing to spend, and whether someone's around to run a portable unit when it happens.

	Standby Generator	Portable Generator
Price	$5,000-$15,000+ installed, transfer switch included	$400-$2,500 for the unit alone
Power output	10,000-50,000+ watts, enough for a whole house	2,000-10,000 watts, covers the essentials
Installation	Licensed electrician, transfer switch, permit required	None; plug it in with cords or a manual inlet
Fuel source	Natural gas or propane, tied into a supply line	Gasoline, propane, or dual-fuel; refuel every 8-12 hours
Startup	Fires automatically within seconds, whether you're home or not	You start it by hand; someone has to be there
Maintenance	Yearly professional service plus built-in self-test cycles	Oil changes, carburetor care, off-season prep
Noise	Runs quieter, usually inside a sound-dampened enclosure	Runs louder, especially on non-inverter models
Best for	Frequent or extended outages, owners who travel	Occasional outages, renters, tighter budgets

Choose Standby GeneratorPick a standby generator if outages hit often or run long, you want the whole house covered, and you don't want to think about backup power when the grid drops.Shop Generators

Choose Portable GeneratorPick a portable generator if outages are rare, your budget's tighter, or you need power that can also ride along to a job site or campsite.Shop Generators

The verdict

Standby costs a lot more going in, but it delivers automatic, whole-house power without you lifting a finger, worth it where outages are routine. Portable generators are the practical call for occasional outages or anyone who needs power that moves beyond the house.

FAQs

Can a portable generator cover a whole house?

A big portable (7,000+ watts) paired with a manual transfer switch can carry most essential circuits, but few portables match a standby unit's capacity to run central AC, a well pump, and everything else at the same time.

Do standby generators run on natural gas or propane?

Most run on either, tied directly into your home's gas line or a dedicated propane tank, so there's no manual refueling required even through a long outage.

How long will a portable generator run without stopping?

Usually 8-12 hours on a full tank of gas, so a multi-day outage means you're getting up to refuel, unlike a standby unit tied to a continuous fuel source.

Ironwood Equipment LLC carries both — compare specs and get freight quoted to your ZIP at checkout.