My Rig Settings

Hi, I'm Hank!
Need help setting up? I can walk you through it
Rig Info
Give it a name you'll recognize
Power & Electrical
Climate Control
Water System
Refrigerator Type
Leveling System
Convenience & Features
Sync across devices

Rig Saved to Cloud

Your sync code (use this to load your profile on another device):

Write this down! There is no way to recover it if you lose it and clear your browser.
Save your rig info for quick calculations

RV Solar Calculator

Free RV solar sizing calculator - find out if your solar panels can keep up with your power needs. Calculate watts needed for off-grid camping and boondocking.

SOLAR CALC
Your Solar Setup
W
Add up all your panels (e.g., 2x 200W = 400W)
hrs
Peak sun hours per day (US avg: 4-6)
Ah
Daily Power Needs
Ah
Use the Electrical Load Planner to calculate this
Solar Analysis
Daily Solar Harvest
-- Ah
Daily Balance
-- Ah
Usable Battery
-- Ah
Enter your setup above

Solar Sizing Guide

Rule of Thumb

You need roughly 2-3 watts of solar per 1 Ah of daily usage in average conditions.

Sun Hours by Region

  • Southwest US (summer): 6-7 hours
  • Midwest/South: 4-5 hours
  • Pacific Northwest: 3-4 hours
  • Winter anywhere: Reduce by 30-50%

Efficiency Losses

Real-world solar harvest is ~75-85% of theoretical due to heat, angle, shading, and controller losses. This calculator uses 80% efficiency.

For educational purposes only — full disclaimer ↓ Always verify measurements and consult manufacturer documentation before performing repairs. Results are estimates only. Terms of Service.