Should you get a power station or a gas generator?
Scenarios Updated 2026-08-01
Neither wins outright. A power station is silent, needs no fuel and produces no exhaust, but it holds a fixed amount of energy; a generator runs for as long as you keep feeding it fuel, but it has to run outdoors, needs periodic upkeep, and is loud. Which one actually solves your outage depends on how long the outage runs, what the single biggest thing you need draws at the instant it starts, and where you are allowed to run either machine.
For a lot of households the honest answer is both, doing different jobs: a power station for the loads you would rather run indoors without thinking about it, a generator held in reserve for a load or an outage that outgrows a battery.
The five questions that actually decide it
- How long the outage might run. A power station holds a fixed number of watt-hours and then needs a recharge — from the wall, a car, or the sun; a generator runs as long as you keep adding fuel. A multi-day outage with no recharge plan favours a generator, or a station paired with solar; an evening or two favours whichever is quieter and already sitting charged.
- What the single biggest load draws at the instant it starts, not while it is running. A motor’s locked-rotor start can be several times its running watts — the surge-watts article works through why — and every inverter, ours or a generator’s, is only as good as its own published surge ceiling. A generator’s engine and alternator handle a big motor start differently than a battery inverter does, but the honest way to know either one is the same: read the machine’s own published figure, do not assume a multiple.
- Where it has to run. A power station produces no combustion byproduct and is safe indoors, in a tent, or next to where you sleep. A gas generator produces carbon monoxide and has to run outdoors, away from windows, doors and vents, every single time — with no exception for “just this once with the garage door open”.
- How much upkeep you will actually do. A power station sits at whatever charge it holds and needs nothing between uses beyond an occasional top-up — the lithium iron phosphate chemistry most of them use self-discharges slowly (the chemistry article covers why). A generator needs fuel that is stored, rotated and kept fresh, an occasional oil change, and a start you can rely on when you actually need it, not a coin-flip after eight months in a shed.
- What it costs to run, not just to buy. Recharging a power station from the wall or the sun has no per-use consumable. A generator burns fuel every hour it runs, and that fuel has to be bought, stored safely and replaced before it goes stale.
What a heavy continuous load actually asks for
A stick welder, published
From the welding-equipment maker’s own spec sheet. A transformer welder draws close to this continuously while it is running — a very different shape of load from a compressor’s brief locked-rotor spike.
Above the continuous rating of most portable machines in this library, and it is not a start-up spike — the welder holds close to this the whole time the arc is struck.
See the load record →Below one, which is why the binding limit on some machines below is their volt-ampere ceiling rather than their watt rating — the same distinction the CPAP article works through for a much smaller load.
Official specverified 2026-08-01welder (stick / MIG) record
One heavy load, three machines
Live engine runs against the welder above
The percentage is the running load as a share of continuous output. Read the “limited by” line before concluding the percentage is the whole story — one of these three is stopped by a ceiling the percentage does not show.
Refused outright: the running load alone is above this machine’s continuous rating, before the power factor is even considered.
Show the working →Also refused — not on watts, but on the volt-ampere ceiling once the welder’s power factor is taken into account. A raw-watts comparison alone would have called this one closer than it is.
Show the working →The largest machine we hold, and the only one of the three that clears it, with real headroom left over.
Show the working →Two machines out of three say no to a single continuous load well inside what most household generators are rated for, and the third clears it with room to spare rather than comfortably. That is the honest shape of the trade-off: a heavy, sustained draw — a welder, a table saw run for a while, a whole-panel transfer during a multi-day outage — is exactly where a fuel generator’s larger continuous class starts to earn its keep against a portable battery, and it is exactly the kind of load this site will not wave through on an assumption.
Indoor safety is not a preference, it is a constraint
A battery-powered station produces no combustion exhaust, so where it runs is a matter of convenience. A gas generator is different in kind, not degree: it produces carbon monoxide, a colourless, odourless gas that can incapacitate before it is noticed, and the U.S. Consumer Product Safety Commission attributes the large majority of non-fire carbon-monoxide deaths from engine-driven tools to portable generators specifically — most of them run too close to the home, in a garage, or with a door propped open rather than genuinely enclosed.
Where the rule is written down
One source, from the federal agency that investigates these deaths.
States the rule plainly: run a portable generator outdoors only, well away from windows, doors and vents, with the exhaust directed away from the building — and never in a garage, basement, crawlspace or shed even with the door open. A power station carries no equivalent restriction, because it has no exhaust to direct.
Open the source →Where the two are not actually rivals
A lot of households end up owning both, because the loads that matter most in an outage split cleanly along these same lines. The priority-list article ranks what is actually cheap to run — a router, a fridge, a medical device — and every one of those is a good fit for a quiet, indoor-safe power station. A sump pump’s locked-rotor start, or a whole house through a transfer switch for several days, is the other end of the same list, and it is where a generator’s continuous class and fuel supply do the job a battery cannot.