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Sun Irradiation Calculator UK

Solar Radiation Formula:

\[ G = G_{ref} \times k \]

W/m²

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1. What is a Sun Irradiation Calculator?

Definition: This calculator estimates the actual solar radiation at a specific UK location based on reference radiation and location-specific factors.

Purpose: It helps solar energy system designers, architects, and engineers determine the available solar energy for photovoltaic systems or building design.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ G = G_{ref} \times k \]

Where:

Explanation: The reference radiation is adjusted by a location-specific factor that accounts for geographical and climatic conditions.

3. Importance of Solar Radiation Calculation

Details: Accurate solar radiation estimates are crucial for sizing solar energy systems, predicting energy output, and optimizing system performance.

4. Using the Calculator

Tips: Enter the reference radiation (typically 1000 W/m² for standard conditions) and location factor (default 0.85 for average UK conditions). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find reference radiation values?
A: Reference values are often provided in solar databases or can be obtained from meteorological stations.

Q2: What affects the location factor?
A: Factors include latitude, altitude, typical weather patterns, and local shading conditions.

Q3: How accurate is this calculation?
A: It provides a basic estimate. For precise calculations, consult detailed solar maps or professional assessments.

Q4: What's a typical location factor for different UK regions?
A: Southern England: 0.9, Midlands: 0.85, Northern England: 0.8, Scotland: 0.7-0.75.

Q5: Can I use this for solar panel sizing?
A: Yes, but consider additional factors like panel efficiency, tilt angle, and system losses for complete sizing.

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