Solar Radiation Formula:
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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.
The calculator uses the formula:
Where:
Explanation: The reference radiation is adjusted by a location-specific factor that accounts for geographical and climatic conditions.
Details: Accurate solar radiation estimates are crucial for sizing solar energy systems, predicting energy output, and optimizing system performance.
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.
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.