Off-Grid Solar Calculators

Appliance-specific

Starlink Off-Grid Power Consumption Calculator

Starlink’s published bands are AC-wall averages. This planner uses lower-bound DC-side watts: Mini about 15 W idle / 25 W active (no snow heater), Standard about 45/75 W with extra melt load, Performance much higher. The idle figures carry the safety margin; the active ones sit at the bottom of the published band, so measure your kit if you can.

Inputs

Units
h
h

Mini ignores extra melt power. Keep active + snow ≤ 24.

Battery voltage used to convert watt-hours to amp-hours.

Terms of Service

Results

Please tick the box above to display the Result.

Engineering methodology

Daily watt-hours = idle W × idle hours + active W × active hours + snow-melt W × snow hours, with idle hours = 24 − active − snow. Average watts = daily Wh ÷ 24. Daily amp-hours = daily Wh ÷ battery volts (nameplate, no DoD — add DoD separately when sizing a bank). Planning watts: Mini 15 W idle / 25 W active (snow hours use the same 25 W; Mini has no heater); Standard 45 / 75 / 125 W; Performance 90 / 140 / 190 W. Active plus snow hours must not exceed 24; a blank hours field is rejected rather than read as 0. The Mini and Standard active figures are the low edge of Starlink’s published bands, not a specification — a busy Standard kit can sit nearer 100 W.

Frequently asked questions

How many amp-hours per day does Starlink use on 12 V?

Ah = Wh ÷ V. A Standard dish at 75 W for 24 h is 1,800 Wh, or 150 Ah at 12 V nameplate (more rated Ah after DoD). Mini at 25 W for 24 h is 600 Wh, or 50 Ah at 12 V.

Does Starlink Mini have a snow-melt heater?

Mini has no faceplate heater in this model. Snow hours use the same 25 W active figure. Standard and Performance add extra melt watts (often tens of watts) when preheat or snow melt is on.

Why are these watts different from Starlink’s published 25–40 W Mini band?

Official bands are typically AC-wall averages including the power supply. Field Mini units often sit near 16–25 W after firmware updates. This planner uses round numbers at the low edge of those bands for active use, with more generous idle figures. Measure your kit; firmware and weather move draw.

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