Evaluate your roof suitability for solar installation in just a few clicks
Roof Suitability Calculator
20–30° gives maximum solar yield in Pakistan.
South-facing roofs capture the most sunlight.
Even partial shading can reduce output by 20–40%.
Concrete roofs are the most suitable for panel mounting.
Shadow-free usable area. Approx. 100 sq. ft. = 1 kW of solar.
Suitability Score—out of 100
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Score Meter
Max System Size—kW (based on roof area)
Effective Capacity—kW (after suitability factor)
Usable Roof Area—sq. ft. effective
Factor Breakdown
* Suitability score is a weighted average of angle (30%), direction (25%), shading (30%), and roof strength (15%). System size = roof area ÷ 100. Effective capacity applies the suitability factor.
