Home / Compare / Standby vs Portable Generator
Standby vs Portable Generator
Wired permanently into your home, a standby generator kicks on by itself the instant the grid drops. The cheaper alternative, a portable generator, is a unit you roll out and connect on your own. Which one makes sense hinges on how frequently you lose power, your budget, and whether someone will be around to fire up a portable when an outage strikes.
| 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 to run an entire house | 2,000-10,000 watts, enough to cover the essentials |
| Installation | Needs a licensed electrician, a transfer switch, and a permit | No installation -- just plug in with extension cords or an inlet |
| Fuel source | Runs on natural gas or propane tied to a supply line | Gasoline, propane, or dual-fuel, with refueling needed every 8-12 hours |
| Startup | Kicks on automatically within seconds, even if nobody's home | Manual start -- someone has to be there to set it up |
| Maintenance | Yearly professional service plus built-in self-test cycles | Oil changes, carburetor care, and off-season prep |
| Noise | Quieter, often tucked inside a sound-dampened cabinet | Louder, particularly on non-inverter models |
| Best for | Frequent or extended outages, and homeowners who travel | Occasional outages, renters, and budget-minded buyers |
The verdict
The upfront price of a standby generator is much steeper, but in return it powers your whole house automatically the second the grid fails, which pays off in areas where outages are common. For infrequent outages, or for anyone who needs power they can take beyond the property, a portable generator is the sensible pick.
FAQs
Can a portable generator power a whole house?
Covering most essential circuits takes a large portable unit, 7,000 watts or more, tied into a manual transfer switch. And even at that size, few portables can drive central AC, a well pump, and everything else simultaneously the way a standby unit does.
Do standby generators run on natural gas or propane?
Most accept either fuel, plumbed directly into your home's natural gas line or a dedicated propane tank, so there's no hand-refueling to worry about even through a prolonged outage.
How long can a portable generator run continuously?
Expect roughly 8 to 12 hours from a full gas tank. Ride out a multi-day outage and you'll be getting up to refuel, whereas a standby unit draws from an uninterrupted fuel source.
Station Containers carries both — compare specs and get freight quoted to your ZIP at checkout.