1. What is the RV Solar Panel & Battery Calculator?

This calculator helps RV owners determine the appropriate solar panel and battery capacity needed for their system based on power requirements and available sunlight hours.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Solar\ Panel\ Output \) — Rated output of solar panel in watts
• \( Sun\ h \) — Peak sunlight hours per day
• \( RV\ Voltage \) — Voltage of your RV system (typically 12V or 24V)

Explanation: The equation calculates the amp-hours (Ah) your solar system can provide based on panel output, sunlight hours, and system voltage.

3. Importance of Proper Solar Sizing

Details: Properly sizing your solar system ensures you have enough power for your needs without overspending on unnecessary capacity. It helps prevent battery damage from over-discharge and maximizes solar efficiency.

4. Using the Calculator

Tips: Enter your solar panel's rated output in watts, estimate your average peak sunlight hours (varies by location), and your RV's system voltage (typically 12V). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are typical sun hours for different locations?
A: Sun hours range from 2-3 in northern areas to 5-6 in desert regions. Check solar maps for your specific location.

Q2: Should I include a safety factor?
A: Yes, most experts recommend multiplying your calculated needs by 1.2-1.5 to account for inefficiencies and cloudy days.

Q3: What if I have multiple solar panels?
A: Sum the wattage of all panels when entering the solar panel output value.

Q4: How does this relate to battery capacity?
A: The calculated Ah represents daily solar production. Your battery bank should be sized to store this energy for nighttime use.

Q5: What about power consumption?
A: This calculator shows production capacity. You should also calculate your daily power needs to ensure they match.