Standby or portable? The machine, or you, at 2 a.m.
A standby sits on its pad, notices the outage, and starts itself while you sleep. A portable makes comparable watts for a fraction of the project, and assigns every remaining task to a person standing in the driveway, rain included. Once you see the question that way, the answer usually arrives on its own.
The short version
- Standby versus portable is who does the work when the grid dies: an automatic switch in ten to thirty seconds, or a person in the driveway.
- Cost, fuel, carbon monoxide, and the legal house hookup follow from that.
- No generator hop.
- No invented dollar quotes.
- Invoice map on the cost page.
- Quiet battery stations are the third machine, not a fourth engine.
One search phrase covers three different machines: the automatic plant on a pad, the wheeled gasoline generator, and the quiet battery box sold as a solar generator. Two of them burn fuel. Only one starts without a human. This page keeps them sorted so you do not buy an indoor-safe battery for a well-pump job, or seven thousand jobsite watts for a fridge and a modem.
Our partners (Jackery, BLUETTI, Anker SOLIX) sell batteries, not engines, so no generator on this page carries a buy button. If the real fork is battery versus engine, that page referees it. If automatic is already decided, skip ahead to the standby classes and the invoice map. The silo: whole-house hub.
What automatic actually buys
An automatic standby watches the utility voltage. When the grid sags or dies, the transfer switch isolates the house, the engine cranks, and the chosen loads come back, usually within ten to thirty seconds rather than instantly. You can be asleep. You can be two states away. What the machine still needs is unglamorous and non-negotiable: fuel, a healthy starting battery, and its exercise schedule. Automatic means a transfer switch plus an engine somebody maintained. There is no third ingredient.
A portable does none of that until a person does all of it: roll it out with proper clearances, start it, plug the inlet, flip the interlock so you do not backfeed the street. If nobody in the house can or should do that work in freezing rain at 2 a.m., portable is the wrong class at any wattage printed on the box. That is the entire comparison. Everything below is footnotes to it.
Side by side
What changes when you trade the pad for a handle. No buy buttons on these rows. Nobody here profits from your engine. Cost cells point at the invoice map rather than inventing a bid.
| Standby (automatic) | Portable gas generator (manual) | |
|---|---|---|
| Who starts it | The transfer switch, in 10–30 seconds, while you sleep | You, outdoors, in whatever the sky is doing |
| Fuel | Natural gas or propane, and no fuel cans involved | Gasoline or propane, and gasoline goes stale in storage |
| What comes back on | The whole panel, or a managed set of loads | Whatever the inlet and interlock (or extension cords) reach |
| Carbon monoxide | Outdoor pad with code clearances, still real and still measured | The serious one: garages, porches, and open windows have killed people |
| All-in cost | Install routinely outweighs the unit. Line items: cost page. | The machine plus a legal inlet. Still cheaper. Still not free watts. Same invoice map. |
| Upkeep | Exercise runs, oil, a dealer visit | Same oil truths, plus storage, carburetors, and stale fuel |
Two adjustments keep the cost row honest without a dollar fence. A cheap portable stops being cheap the day an electrician adds the inlet, the interlock, and a properly sized cord. Still cheaper, just not that cheap. And a standby can still beat a week of hotel, a freezer of ruined food, and a flooded basement, if those are real risks at your address. Two written bids on the same load list are the numbers.
Carbon monoxide, and the fuels
Combustion makes carbon monoxide. Portable generators hurt people when they run in garages “just for a minute,” in attached sheds, or near a window the wind favors. The maker’s clearance diagram is the minimum. Your local code may want more. A CO alarm is a smoke detector’s cousin, not a permission slip. If anyone in the house cannot reliably keep the machine outdoors and pointed away from openings, choose a different machine.
Standby plants exhaust too, out on a pad, at the distances printed in the installation manual, measured from windows, property lines, and sometimes the neighbor’s bedroom. A side yard that almost fits is a failed inspection waiting. Noise rules stack on top. Automatic does not mean invisible. It means planned.
Fuel sorts the classes one more time. Natural gas is the set-and-forget choice, and it often keeps flowing under a street whose power lines came down. Often. Never always. Propane is fuel you own, tank gauge and all. Nobody can shut it off, and nobody refills it mid-ice-storm either. Gasoline belongs with portables you stand beside: easy to buy before landfall, miserable to store after. It goes stale, it varnishes carburetors, and a red can in the garage is both a fire question and roughly one evening of runtime. Dual-fuel portables soften the storage problem. They do not make anybody automatic.
The legal hookup
On the standby side, the real product is the automatic transfer switch, the box that moves your house onto the generator and back again. A service-entrance version can carry the whole panel if the engine and the gas line can feed it. A load-managing version keeps a smaller engine honest by shedding the range and the second condenser. Every flavor is licensed work in nearly every US town, and that is a feature: the person pulling the permit has seen your exact house before.
On the portable side, the legal version is an inlet box on the wall plus an interlock in the panel: a sliding plate whose one job is making it physically impossible for the utility main and the generator breaker to be on together. That plate is what keeps a line worker alive down your street. Extension cords to the fridge and a lamp are a smaller, legal-enough job, generator outdoors and cords rated. What is never on the menu: backfeeding a dryer outlet with a double-ended cord. If that sentence sounds like something you have seen in a video, hire the electrician before you buy the engine. The three paths: cords, inlet, or ATS. Sequence: buying guide.
The quiet third machine: the battery station
Portable gas generators and portable power stations share an adjective. They do not share a product. A station is a battery with an inverter: no exhaust, no pull cord, welcome in the kitchen. The ones we feature run LiFePO4 chemistry, hold about two nights of fridge, and refill from the wall or from folding panels in daylight. Their limit is honest: a fridge overnight is squarely their job. A well plus a heat pump for three days is not, and never will be.
If the comparison you were actually running was quiet backup for the fridge, the answer was a station all along. The sticky on that aisle is the BLUETTI AC200L. Shops: Jackery, BLUETTI, Anker SOLIX. Stay on Anker SOLIX, not Anker.com retail. Split-phase without a pad is the Anker SOLIX F3800. The night itself: stations for home backup.
Who this fits
- Nobody should be starting machinery at 2 a.m., whether that is age, travel, or plain good sense.
- A well, a sump, medical gear, or winter heat cannot wait for a person.
- The install budget is real. See the cost page first.
- You will give the engine its exercise and oil.
Who should skip
- Outages are rare and a capable, willing person is reliably home.
- You will pay for the inlet and interlock, not improvise around them.
- Carbon monoxide discipline is a promise you can keep, every time.
- Or you get halfway down this list and realize a quiet battery station was the actual answer. That happens a lot, and it is a fine ending.
How we know: Specification / category analysis. No dealer quotes pulled for this retrofit.
Price check: No featured SKU in products.json — VERIFY-AT-PUSH (not checked) — from merchant page / products.json; may change.
Limits: We did not run a hands-on lab on these units. Surge blanks stay blank where the maker never prints one clean figure. EcoFlow stays comparison-only (no hop). Disclosure mode is dormant — we do not claim commissions.
The deciding variable is staffing, not wattage. A capable adult reliably on site with rare outages keeps the portable column standing. Remove that person, or add a well, a sump, or a medical load that cannot wait, and the decision flips to standby. Write your own version of that sentence down. That is your answer.
What we’re not claiming
Never run a portable generator in a garage, even with the door up, even for a minute. Do not ask a battery station to impersonate a 20 kW plant. Each machine is good at its own job. We are writers, not your fire marshal. Method: how we work · corrections: contact · money: disclosure.
No generator commission on this page because there is no generator hop. Battery shops appear where they belong.