Solar System Calculator
Calculate your daily power needs, solar panel wattage, and battery capacity for your van electrical system.
Daily Power Loads
Add all devices you plan to use and their daily usage
Quick add common loads:
System Parameters
Daily Usage
660 Wh
Solar Needed
248W
Battery Capacity
165 Ah
Recommendations
Solar Panels
3x 100W panels or equivalent (248W total minimum)
Battery Bank
165Ah LiFePO4 (e.g., 1x 165Ah or 2x 83Ah)
Charge Controller
26A MPPT controller (sized at 125% of max solar current)