Why Is Shade Analysis Important in Solar Energy Projects?

One of the most overlooked factors when installing a solar energy system is shade analysis. Yet a single shaded panel can reduce the efficiency of the entire connected string, with annual production losses reaching 15-25%.

Why Is Shade So Impactful?

When a panel is shaded, the effect is not limited to that single panel — it can reduce the output of other connected panels as well. This cascading effect is one of the most underestimated loss factors in solar projects.

Limitations of Traditional Methods

Many companies still perform shade analysis by "eyeballing" it. Shadow movement caused by chimneys, trees, and neighboring buildings throughout the day cannot be accurately predicted through on-site observation alone. Seasonal solar angle changes must also be considered.

How to Perform Proper Shade Analysis

• Panel-level analysis: Calculating shade received by each panel throughout the year
• Hourly simulation: Shade movement animation throughout the day
• Obstacle identification: Adding shade sources like chimneys, antennas, and trees to the 3D model
• Connected panel impact: Production loss caused by shading across connected panels

Shade Analysis with PVAGE

PVAGE software performs panel-level shade analysis to calculate when and how much shade each panel receives. With hourly 3D shade animation, obstacle identification, and connected panel impact analysis, you can preview your project's real performance in advance.