Greenlay Solar Calculator – Easy Guide
1. Daily Electricity Usage (in units or kWh)
What it means: The number of electricity units (kWh) you use every day.
How to find it: Check your electricity bill – divide monthly units by 30.
Example: If your monthly usage is 300 units, enter: 10.
2. Average Cost of Electricity (₹ per unit)
What it means: The amount your electricity provider charges per unit (kWh).
How to find it: Look at your last electricity bill under “Rate per Unit” or ask your provider.
Example: In many Indian cities, the rate is between ₹6 to ₹9 per unit.
3. Sunlight Hours per Day (Optional – Default: 5 hours)
️ What it means: Average hours of effective sunlight your area receives daily.
Tip: If unsure, leave it as 5 (default for most of India).
Example: Jaipur gets ~5.5 hours; Mumbai ~4.5-5 hours.
4. Roof Space Available (sq.ft or m²) (Optional)
What it means: Area on your rooftop available for solar panel installation.
Why it matters: 1kW system typically needs ~100 sq.ft.
Example: If you have 500 sq.ft space, you can fit up to 5kW.
5. Your Location (Optional for future updates)
Why it helps: Your location can help determine average solar irradiance (sunlight availability).
️ Future use: For more accurate and automated calculations based on your city or region.
What You’ll Get After Calculation
• Recommended solar system size (in kW)
• Monthly electricity cost savings
• Estimated installation cost
• Time to recover your investment (Break-even)
• Long-term savings over 25 years
This is just an estimate. For best results, request a site visit or consultation with our expert team.
