How Many Solar Panels Do I Need?
One of the most important questions that come to your mind is the number of solar panels needed. It depends on three key factors. They are
The average energy consumption is the most crucial factor in determining the number of solar panels. Here, the consideration is the total Kilowatt-hours (kWh) you intend to use in the future or one that you currently use.
The number of solar energy panels needed depends on your location and the sun's hours. Moreover, there are varying amounts of sun hours in India, which will affect the number of solar panels you will need.
Your roof size is also a key factor as it will determine the roof stability and the number of panels you install that can easily fit on your roof, the energy that it will generate, and the cost.
The below table shows the approximate amounts of space you need so that it helps in generating a specific amount of energy.
|
Number of Panels Needed Per System and Roof Size |
||
|
Size of solar panels |
Number of 250W panels |
Estimated surface area |
|
3kW |
12 |
19.2 m² |
|
4kW |
16 |
25.6 m² |
|
5kW |
20 |
32.0 m² |
|
6kW |
24 |
38.4 m² |
* Table assuming 250Wp Solar Panel dimensions: 1.6 x 1 m = 1.6 m²
Price of Solar Panel:
The solar panel price depends on various factors like the model of the solar PV panel, its quality, capacity, technology, and manufacturer of the brand. Depending on the requirement, you can install solar panels like 10, 20, 40, 50, 75, 100, 180, 440 watts solar, and 440-530 watt shark bi-facial solar panel. The best quality solar panel price is around.₹ 40 - ₹ 85 per watt, so for a 1 kW solar panel, the maximum price is ₹ 85,000/. Similarly, the price of a 500 W solar panel is about half or 42,000/. The prices of solar panels can vary from 2022; there is an increase in solar panel price and after rising GST for Indian brands from 10 watts to 440 watts. There is a rise in GST rate from 5% to 12%,