1. What is a Solar Radiation Calculator by Zip Code?

Definition: This calculator estimates the solar radiation at a specific location based on reference radiation and a location factor.

Purpose: It helps solar energy professionals and homeowners determine the solar potential at specific locations.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( G \) — Solar radiation at location (W/m²)
• \( G_{ref} \) — Reference solar radiation (W/m²)
• \( k \) — Location factor (dimensionless)

Explanation: The reference radiation is multiplied by a location-specific factor to account for geographic variations in solar intensity.

3. Importance of Solar Radiation Calculation

Details: Accurate solar radiation estimation is crucial for sizing solar power systems, predicting energy output, and optimizing panel placement.

4. Using the Calculator

Tips: Enter the reference radiation in W/m² and location factor (default 1.0). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is reference solar radiation?
A: This is the solar radiation measured under standard test conditions, typically 1000 W/m² for solar panel ratings.

Q2: How do I find the location factor for my zip code?
A: Location factors can be found in solar databases or from local solar installation companies.

Q3: What affects the location factor?
A: Factors include latitude, altitude, typical weather patterns, and local atmospheric conditions.

Q4: Why use zip code for solar calculations?
A: Zip codes provide a convenient way to look up location-specific solar data in databases.

Q5: How accurate is this calculation?
A: This provides a basic estimate. For precise calculations, consult detailed solar maps or professionals.