Solar Panel Size Calculator

How Many Solar Panels Do I Need calculator is used to calculate the number of solar panels that are needed for your home based on the roof size, solar panel size, and your daily electricity use.

How Many Solar Panels Do I Need?

Your Daily Electricity Usage (kWh):
Panel Power (Watts):
Average Sunlight Hours per Day:
Your Roof Size:
Solar Panel Size:

Results

Panel Output per Day: 1.60 kWh (400 W × 4 hrs)
Panels Needed: 19
Total Roof Area Required: 32.30 m²
Your Roof Size: 49.98 m² (converted from 538 sq ft)
Status: Your roof has enough space for the required solar panels.

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