Planning to install solar but confused about how many panels you need? This is one of the most common questions among homeowners. The number of panels depends on your electricity usage, roof space, and system capacity.

Step 1: Check Your EB Bill

Your monthly EB bill gives a clear idea of your electricity usage.

• ₹2000 bill → approx 300–400 units
• ₹5000 bill → approx 600–700 units

Step 2: Panel Calculation

On average:

1kW solar system needs 3 to 4 panels
 Each panel produces around 400–550 watts

Step 3: Example Calculation

Let’s say your EB bill is ₹5000:

•  You need around 5kW system
• 5kW system requires 12 to 15 panels

Step 4: Roof Space Requirement

Each panel needs around 20 sq.ft

5kW system → approx 250–300 sq.ft roof space

Factors That Affect Panel Count

• Sunlight availability
• Panel efficiency
• Roof direction & angle
• Shadow-free space

Quick Guide

The number of solar panels depends mainly on your electricity usage. Choosing the right system ensures maximum savings and better performance.

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