Will a power station run a sump pump?

Pumps Also called: submersible sump pump, basement pump, 1/3 hp sump pump

Two numbers decide whether a power station runs a sump pump, and readers arrive using them interchangeably. Watts are the ceiling on what the inverter can hold at any instant — this load needs 920 W of them while it runs, and 2,650 W for the moment it starts. Watt-hours are how much energy the battery holds. A machine can have plenty of one and not enough of the other.

Of the 26 machines in our library, 13 run it, 0 are a tight fit and 13 are out of reach. Each of those is a calculation against that machine’s continuous output, its surge ceiling and its inverter waveform — not a lookup table — and the reasoning is on every row.

The three numbers a power station is judged against

Running power 920 W 598–1,116 W Official spec · verified 2026-08-01 · medium confidence

Start-up surge 2,645 W engine checks 2,650 W Official spec · verified 2026-08-01 · high confidence

Duty cycle Not published by the manufacturer no figure to date

The band is the spread across real models in this class, not a tolerance. Size against the top of it unless you know which unit you own.

Start-up figure: Manufacturer nameplate (locked-rotor)

This record publishes both an absolute inrush and a multiple of running power. They do not agree exactly, so the engine checks against the more demanding of the two — 2,650 W — rather than picking the flattering one.

Measured duration 500 ms · Official spec · verified 2026-08-01 · low confidence

officialverified 2026-08-01appliance record

What actually decides it

A motor load: the first half-second decides it

An induction motor with a stationary rotor is close to a short circuit. For the fraction of a second before it turns, it pulls several times its running current, and that peak — not the running figure — is what trips an inverter. This is why a machine drawing well under a station’s continuous rating can still fail to start on it, and why the start-up figure at the top of this page matters more than the running one.

What kind of motor is inside

The motor is a plain induction motor, so the start-up figure is a locked-rotor current: the draw while the rotor is still stationary. It is over in well under a second, but an inverter has to survive all of it.

How long the start-up actually lasts

The inrush lasts a couple of tenths of a second, which is the window a station’s surge rating is written for. This is the one case where the surge figure and the surge ceiling are directly comparable.

Which power stations run it

Every row is a live calculation against that machine's continuous output, surge ceiling and inverter waveform. Of 26 machines, 13 run it, 0 are a tight fit and 13 are out of reach. The percentage is this load as a share of that machine's continuous output; anything past 82% drops out of the green. Rows are ordered by verdict, then by price — cheapest first inside each band.

BLUETTI Elite 100 V2 BLUETTI · US 120 V 1,800 W continuous · 3,600 W surge ceiling 51%

920 Wh per hour — while it is actually running No runtime in hours: we do not hold a duty cycle for this load, and no figure is estimated to fill the gap. $499 · checked 2026-08-01 Show the working →

Jackery Explorer 1000 v2 Jackery · US 120 V 1,500 W continuous · 3,000 W surge ceiling 61%

920 Wh per hour — while it is actually running No runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. $499 · checked 2026-08-01 Show the working →

EcoFlow DELTA 3 Plus EcoFlow · US 120 V 1,800 W continuous · 3,600 W surge ceiling 51%

920 Wh per hour — while it is actually running No runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. $689 · checked 2026-08-01 Show the working →

Jackery Explorer 2000 Plus Jackery · US 120 V 3,000 W continuous · 6,000 W surge ceiling 31%

EcoFlow DELTA 2 Max EcoFlow · US 120 V 2,400 W continuous · 4,800 W surge ceiling 38%

Jackery Explorer 1000 Plus Jackery · US 120 V 2,000 W continuous · 4,000 W surge ceiling 46%

EcoFlow DELTA Pro 3 EcoFlow · US 120 V 4,000 W continuous · 8,000 W surge ceiling 23%

Jackery Explorer 1000 v2 Jackery · EU 230 V 1,500 W continuous · 3,000 W surge ceiling 61%

EcoFlow DELTA 3 Plus EcoFlow · EU 230 V 1,800 W continuous · 3,600 W surge ceiling 51%

Jackery Explorer 1000 Plus Jackery · EU 230 V 2,000 W continuous · 4,000 W surge ceiling 46%

EcoFlow DELTA 2 Max EcoFlow · EU 230 V 2,400 W continuous · 4,800 W surge ceiling 38%

Jackery Explorer 2000 Plus Jackery · EU 230 V 3,000 W continuous · 6,000 W surge ceiling 31%

EcoFlow DELTA Pro 3 EcoFlow · EU 230 V 4,000 W continuous · 8,000 W surge ceiling 23%

EcoFlow RIVER 3 Plus EcoFlow · US 120 V 600 W continuous · 1,200 W surge ceiling 153%

BLUETTI Elite 30 V2 BLUETTI · US 120 V 600 W continuous 153%

limited by continuous output 920 Wh per hour — while it is actually running No runtime in hours: we do not hold a duty cycle for this load, and no figure is estimated to fill the gap. BLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $299 · checked 2026-08-01 Show the working →

Jackery Explorer 300 Plus Jackery · US 120 V 300 W continuous · 600 W surge ceiling 307%

limited by continuous output 920 Wh per hour — while it is actually running No runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. $299.99 · checked 2026-08-01 Show the working →

BLUETTI Elite 200 V2 BLUETTI · US 120 V 2,600 W continuous 35%

limited by surge ceiling 920 Wh per hour — while it is actually running No runtime in hours: we do not hold a duty cycle for this load, and no figure is estimated to fill the gap. BLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $1,099 · checked 2026-08-01 Show the working →

EcoFlow STREAM Ultra EcoFlow · US 120 V 800 W continuous 115%

limited by continuous output 920 Wh per hour — while it is actually running No runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. EcoFlow publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $1,279 · checked 2026-08-01 Show the working →

Anker SOLIX C300 Anker SOLIX · EU 230 V 300 W continuous · 600 W surge ceiling 307%

limited by continuous output 920 Wh per hour — while it is actually running No runtime in hours: Anker SOLIX publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. €269.99 · checked 2026-08-01 Show the working →

BLUETTI Elite 30 V2 BLUETTI · EU 230 V 600 W continuous 153%

Jackery Explorer 300 Plus Jackery · EU 230 V 300 W continuous · 600 W surge ceiling 307%

EcoFlow RIVER 3 Plus EcoFlow · EU 230 V 600 W continuous · 1,200 W surge ceiling 153%

EcoFlow STREAM Ultra EcoFlow · EU 1,200 W continuous 77%

limited by surge ceiling 920 Wh per hour — while it is actually running No runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. EcoFlow publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €599 · checked 2026-08-01 Show the working →

BLUETTI Elite 100 V2 BLUETTI · EU 230 V 1,800 W continuous 51%

Anker SOLIX Solarbank 3 E2700 Pro Anker SOLIX · EU 1,200 W continuous 77%

limited by surge ceiling 920 Wh per hour — while it is actually running No runtime in hours: Anker SOLIX publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. Anker SOLIX publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €999 · checked 2026-08-01 Show the working →

BLUETTI Elite 200 V2 BLUETTI · EU 230 V 2,600 W continuous 35%

Our pick for this load

BLUETTI Elite 100 V2 · US 120 V

The cheapest US 120 V machine in the list that runs a sump pump outright, and it holds it at 920 Wh per hour.

$499 · price checked 2026-08-01

The buy link is in the bar at the bottom of the screen — one action per page, and it goes to the merchant we last checked the price at.

Everything else we hold on this load

Each figure carries the tier it came from and the date it was checked. Sizing guidance is kept apart from measured draw on purpose: one says what the machine pulls, the other says what a manufacturer or a standard thinks you should buy for it.

Measured and published draw

Standby draw 0 W Official spec · verified 2026-08-01 · medium confidence

Sizing guidance — not a draw figure

Minimum continuous output 1,116 W Official spec · verified 2026-08-01 · medium confidence

A sizing figure, not a draw: it is what this class needs a machine to be RATED at, headroom included.

Minimum surge capability 2,645 W Official spec · verified 2026-08-01 · high confidence

The start-up headroom this class needs an inverter to have. Where it comes from a manufacturer’s inverter recommendation rather than a measured inrush, it is deliberately generous.

Where to go next

From the Knowledge channel

A sump pump has a guide of its own: the same records this page computes from, worked through in prose with room for the reasoning a table can only summarise — Can a power station really keep my sump pump running through a storm?

Questions people ask about this load

How many watts does a sump pump use?

920 W while it is running, and 598–1,116 W across the models in this class, with 2,650 W demanded at the instant it starts. Those are different questions and most pages answer only the first. The running figure decides whether a machine can hold it; the start-up figure decides whether it can get it going at all, and it is usually the one that fails. The start-up figure here is the manufacturer’s own..

What size power station do I need for a sump pump?

For a sump pump, the BLUETTI Elite 100 V2 (US 120 V) is the cheapest machine in our library that runs it, at 1,800 W continuous · 3,600 W surge ceiling and $499 against a running draw of 920 W and a start-up demand of 2,650 W. That is a verdict computed from this load’s running watts, its start-up demand and the inverter waveform — not a rule of thumb about doubling the wattage. 13 of 26 machines clear it, 0 are a tight fit, and the tight ones are tight for reasons the list states individually.

How long will a power station run a sump pump?

No machine in our library can answer that honestly yet, and none of the 26 rows above pretends otherwise. A runtime needs a usable-capacity figure; for the machines that reach a sump pump the brands publish a nameplate watt-hour rating and nothing about depth of discharge or inverter efficiency. Dividing that nameplate by this load would give a confident-looking figure that is typically 20–35% too high. Every row gives the energy rate instead — watt-hours per hour — which needs no battery figure at all.

Why does a sump pump need so much more power to start?

The start-up figure is the manufacturer’s own locked-rotor rating, off a spec sheet for a real model in this class — not a category multiple. Where a standards table and the nameplate disagree, this library uses the nameplate: the standards figure is a selection envelope for breakers and controllers, and sizing a battery to it over-specifies the machine by two to four times. The engine works the check against 2,650 W, which is what a station's surge ceiling has to cover for the moment the machine starts. A station whose continuous rating is comfortably above the running figure can still refuse the start, and that is the single most common way a purchase goes wrong for this class.

Which power stations run a sump pump?

13 of the 26 we hold, listed above cheapest-first within each verdict band, starting with the BLUETTI Elite 100 V2. 0 more are a tight fit on a sump pump — they run it, but with less headroom than we are willing to call comfortable — and 13 cannot. Every one of those is a live calculation against that machine's own record, and opening a row shows the working.