Off-Grid Electrical Sizer
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Quick Presets
Starlink (25W)
12V Fridge (45W)
Laptop (65W)
Microwave (1kW)
1. Power Load
7.20 kWh / day
Watts
2. System Nominal Voltage
12V
Vans & RVs
24V
Cabins & Boats
48V
Whole Home
3. Daily Runtime
24 hrs/day
4. Battery Chemistry
LiFePO4 Lithium (80% DoD Recommended)
Lead-Acid / AGM / GEL (50% DoD Max)
NMC Li-ion (80% DoD)
Required Battery
@ 12V
860
Ah
Total capacity needed (
10.31 kWh
) accounting for inverter loss & DoD.
Min. Solar Array needed:
2,412 W
Based on 4.5 sun hrs
⚠️ Loads over 3,000Wh/day require heavy cabling at 12V. Upgrading to 24V or 48V is recommended.
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