Solar Panel Sizing Calculator (Pakistan)
Calculate the right solar panel size for your needs based on daily energy consumption and location
Solar Panel Sizing Calculator (Pakistan)
Based on average global horizontal irradiance (GHI) and a simple PR model.
- Lahore ≈ 5.0 peak‑sun‑hours
- Karachi/Hyderabad ≈ 5.2
- Quetta ≈ 5.5
- Islamabad ≈ 5.1
How to Use the Calculator
Enter Your Energy Requirements
Input your daily energy needs in kWh/day. This is your average daily electricity consumption. You can find this value on your electricity bill by dividing your monthly consumption by the number of days in the billing cycle.
Select Panel Specifications & Location
Enter the wattage of the solar panels you're planning to use, select your city from the dropdown menu, and set the performance ratio (PR). The PR accounts for system losses and typically ranges from 0.75 to 0.85.
Analyze Your Solar System Requirements
Click "Calculate" to see the recommended system size in kWp (DC), the number of panels needed, and the estimated monthly energy production. The calculator uses location-specific peak sun hours to provide accurate results for your area.
Ready to Go Solar?
Our experts can help you design the perfect solar system for your energy needs