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DIY Solar Panel Wattage Calculator

Solar Wattage Equation:

\[ Wattage = \frac{Load}{Sun\ Hours} \]

Wh/day
hours/day

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1. What is the Solar Wattage Equation?

The solar wattage equation calculates the required solar panel wattage based on your daily energy consumption and average sunlight hours. It helps determine the appropriate size of solar panels needed for your energy requirements.

2. How Does the Calculator Work?

The calculator uses the solar wattage equation:

\[ Wattage = \frac{Load}{Sun\ Hours} \]

Where:

Explanation: The equation divides your total daily energy needs by the average sunlight hours to determine the wattage of solar panels required to meet your energy demands.

3. Importance of Solar Wattage Calculation

Details: Proper solar panel sizing is crucial for meeting energy needs, optimizing system efficiency, and avoiding overspending on unnecessary capacity.

4. Using the Calculator

Tips: Enter your total daily energy consumption in watt-hours and your location's average peak sunlight hours. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine my daily energy load?
A: Add up the watt-hours of all devices you plan to power, multiplied by their hours of daily use.

Q2: Where can I find sun hours for my location?
A: Check solar insolation maps or contact local solar installers for accurate data.

Q3: Should I add a safety margin?
A: Yes, most experts recommend adding 20-25% to account for inefficiencies and future needs.

Q4: Does this account for battery storage?
A: No, this calculates panel wattage only. Battery sizing requires additional calculations.

Q5: How does panel orientation affect this?
A: Optimal tilt and direction can increase effective sun hours, while poor orientation may decrease them.

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