Free Rooftop Solar Calculator | Wattage & Payback Estimator
Solar Panel Savings calculator
This Calculator Calculates Total saving in year after installation of rooftop solar plant according to PMSGY
- Enter Monthly Average bill generated by DISCOM
- Enter required solar system size calculated from solar panel wattage calculator
- Enter average electricity unit cost charged in your area by DISCOM
- Enter cost of solar power plant /KW mostly it is 60000/kw you can according to quote you get.
Solar Saving Calculator
Solar Panel Wattage calculator
This Rooftop solar Calculator Calculates solar panel required to Install
- Enter Monthly Consumption in KWh
- Enter Sunny hours according to your area. For description Check it
- Panel efficiency mostly 80%
- Enter average electricity unit cost charged in your area by DISCOM
Solar Panel Wattage Calculator
*To check Monthly production go to ” My solar rooftop review”*
Average Sunshine Hours in New Delhi (For Rooftop Solar Calculator)
New Delhi, the capital city of India, enjoys abundant sunshine throughout the year, making it one of the best locations for solar rooftop installations.
Average Sunny Hours in New Delhi:
- Daily Peak Sunlight Hours: 5.5 to 6 hours
- Annual Sunny Days: Approximately 300 days/year
- Solar Irradiation: 5.5–6.0 kWh/m²/day
These values represent the “peak sun hours” — the number of hours each day when sunlight intensity is ideal for solar energy generation.
Monthly Sunshine Patterns in New Delhi:
Month Avg Peak Sun Hours/Day
January 4.5 – 5.0
February 5.5 – 6.0
March 6.0 – 6.5
April 6.5 – 7.0
May 6.0 – 6.5
June 5.0 – 5.5 (cloudy/monsoon begins)
July 4.5 – 5.0 (monsoon)
August 5.0 – 5.5 (monsoon)
September 5.5 – 6.0
October 6.0 – 6.5
November 5.5 – 6.0
December 4.5 – 5.0
Annual Average: ~5.5 hours/day
What Does This Mean for Solar Energy?
- A typical 1 kW rooftop solar system in New Delhi can generate around 5.5 to 6 units of electricity per day.
- This makes New Delhi ideal for solar investment, whether it’s for residential rooftops or commercial setups.
- Even during monsoon months, solar generation continues—though at slightly reduced efficiency.
Summary
New Delhi receives an average of 5.5 to 6 peak sun hours per day, which translates into excellent solar energy potential. With nearly 300 sunny days a year, installing a rooftop solar system in Delhi is a highly efficient and cost-effective way to reduce your electricity bills and carbon footprint.
Frequently Asked Questions
1. How many solar panels do I need in India?
It depends on your electricity usage and roof space. For every 1,000 units of annual electricity, you may need about 2.5 kW of solar panels.
2. Is solar panel installation worth it in India?
Absolutely. With subsidies and low maintenance costs, a rooftop solar system can pay for itself within 4–6 years.
3. How accurate is this calculator?
We use real-time data from Indian electricity tariffs, solar irradiation maps, and MNRE guidelines to offer practical and reliable estimates.
Make the Switch Today!
Whether you’re exploring options for your home, business, or farmhouse, our solar calculator can help you take the first step. Reduce your electricity bills and carbon footprint—calculate your solar savings now!