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How to Calculate Rooftop Area Required to Install Solar Panels?

Thinking of switching to solar energy? Go green and go solar! It's one of the best ways to save on electricity bills and bring down your carbon footprint. Start your planning for solar installation by determining the area required for a 3 kW solar system or the area required for a 1 kW solar system. It's important to understand how much rooftop space is required for solar systems to make sure your system is cost-effective, efficient and able to fulfil your energy requirements.

Don't know how to calculate solar system requirement?

Step-By-Step Guide To Calculate The Rooftop Area Needed For the Installation Of Solar Systems!

Determine Your Energy Consumption

In the first phase, it's essential to know about your total energy consumption. Review your electricity bills to know your average monthly consumption in kWh (kilowatt-hours). This will provide you with an idea of the amount of energy your solar system requires to produce.

Estimate The Solar System Size Needed

Secondly, you will have to evaluate the size of the solar system needed, generally measured in kWp (kilowatts peak). One of the easiest ways to calculate this is to multiply your monthly electricity consumption by 12 and then divide it by the annual energy generation per kWp of the installed solar panels in your area.

In India, solar systems of 1 kWp generally produce roughly 4 to 5 kWh every day, relying on the availability of sunlight. For example, if your house consumes 900 kWh every month, the size of the system should be around 7 to 8 kWp in order to cover your annual electricity requirements in an efficient manner.

Check The Size Of Solar Panels

Solar Panels come in various sizes and wattages, generally ranging from 535Wp to 620Wp per panel, with dimensions approximately 2 m × 1.2 m. Being aware of the size and wattage of the solar panels can help you to calculate the rooftop area required for installation.

Calculate The Number Of Panels Required

Next, how to calculate solar panel requirement? Divide the total solar system size in kWp by the wattage of a single solar panel converted to kWp. For instance, for a 6kWp solar system that utilises 500W panels, divide 6 by 0.5, which results in 12 solar panels.

Calculate The Total Rooftop Area

After knowing the number of solar panels required, it's time to calculate the total rooftop area needed for installation. Just multiply the number of solar panels by the area of one panel, then add a small percentage, such as about 10%, to account for the spacing between solar panels for airflow and maintenance. For instance, each solar panel is approximately 2.4 m². Therefore, multiply 12 panels by 2.4 m² and then multiply by 1.1 for spacing, which yields approximately 32 m².

Also Read: Rooftop Solar System: What It Is & How Much You Can Save

Conclusion

By understanding your energy consumption, system size, panel specifications, and spacing requirements, you can plan your solar installation accurately. Proper calculation saves both time and money while maximising energy generation and long-term benefits.

Now, you know how to calculate solar system requirement, which is a crucial step to ensure your solar system is capable of fulfilling all the needs! By knowing how much area required for 3kw solar system, specifications, energy consumption and more, you can plan your solar installation accordingly. However, if you need any help — Zodiac Energy Limited is right here to guide you!