A standby generator installs permanently and powers your home automatically for $5,000 to $15,000, while a portable costs $500 to $2,500 and needs manual setup for essentials. Pick standby for hands-off, whole home backup, portable for affordable, occasional-outage coverage.
When you narrow backup power to the two main types, the choice is standby vs portable generator, and it hinges on convenience, coverage, and cost. A standby unit is wired into your home and starts on its own during an outage, while a portable is a movable machine you set up and fuel yourself. Both keep the lights on, but they suit very different needs and budgets. This guide lays out the differences and a simple way to decide.
Side by Side
| Factor | Standby | Portable |
|---|
| Cost | $5,000 to $15,000 installed | $500 to $2,500 |
| Starts | Automatically | You start it |
| Coverage | Whole home or many circuits | Essentials |
| Fuel | Natural gas or propane, piped | Gasoline, refill by hand |
| Refueling in an outage | None needed | Regular |
Choose Standby If
Outages are frequent or long
You want power restored in seconds, automatically, without being home.
You have critical needs
Medical equipment, a well pump, a sump pump, or a home office that cannot go dark.
You want whole home coverage
Running most of the house at once, not just a few essentials.
Choose Portable If
Outages are occasional
A portable is plenty for the odd short outage a few times a year.
Budget is the priority
It costs a fraction of a standby and needs little installation.
You want flexibility
It can be moved, stored away, or taken camping and to job sites.
The Refueling Difference Matters
Think about long outages. A standby on natural gas runs indefinitely without attention, while a portable needs refueling every several hours, including overnight, and you must never refuel a hot, running unit. In a multi-day outage that difference is significant.
Whichever You Pick, Maintain It
Both fail the same way when neglected: stale fuel and skipped oil changes. A standby also needs battery testing, its top failure. Regular service keeps either type starting on demand, and we handle it on site for both.
Generator Service From Wildwood
Whatever generator you buy, Wildwood keeps it running. A technician comes to your driveway, services or repairs it on site, and quotes a flat rate before any work. More than 10,000 repairs since 2019, generator service from $75. Call 888-594-5516.
Should I get a standby or portable generator?
Choose a standby if outages are frequent or long, you have critical needs like medical equipment or a well pump, or you want automatic whole home coverage. Choose a portable if outages are occasional, budget is the priority, or you want a movable unit. Cost versus convenience decides it.
Is a standby generator better than a portable?
Neither is simply better, they suit different needs. A standby is more convenient and covers more, starting automatically and running your whole home, but costs far more. A portable is affordable and flexible but powers only essentials and needs manual setup and refueling.
How much more does a standby cost than a portable?
A lot. A portable runs $500 to $2,500, while a standby costs $5,000 to $15,000 installed, several times more. The difference pays for permanent installation, automatic operation, whole home coverage, and a piped fuel supply that never needs manual refueling.
Do standby generators refuel themselves?
Effectively, yes. A standby runs on natural gas or propane piped to it, so on natural gas it can run indefinitely without refueling. A portable runs on gasoline you refill by hand every several hours, which is a real drawback during a long outage.
Can I start with a portable and upgrade later?
Yes, many people do. A portable with a transfer switch gives affordable backup now, and you can move to a standby later if your needs grow. The portable stays useful as a backup or for other tasks, so it is not a wasted purchase.
