How to Calculate the Right Solar System Size for Your Bengaluru Home?

To tailor the perfect solar power system for your Bengaluru home, follow these detailed steps:

1. Assess Your Energy Consumption:

• Review Your Electricity Bills: Begin by examining your electricity bills over the past six months. This will help you understand your average monthly energy consumption.

• For example, if your bill amounts to Rs 3000 and the local tariff is Rs 7 per unit,

  Calculate Monthly Energy Consumption:

  Monthly Energy Consumption = Monthly Bill / Tariff per Unit = 3000 / 7 ≈ 428.5 units

  Calculate Annual Consumption:

  Yearly Energy Consumption = 428.5 × 12 ≈ 5142 units

  

2. Determine the Required System Size:

• Understand Solar Output: A 1kW solar power system typically generates around 1460 units of electricity annually. The amount of energy you consume determines the right size of your solar system.

• To find out how many kW you need, use the following formula:

  Required System Size (kW) = Yearly Energy Consumption / Annual Units per kW = 5142 / 1460 ≈ 3.52kW

• System Sizing: Based on this calculation, a 3.5kW system would be suitable to meet your household's energy needs. Opting for a slightly larger system might also provide additional benefits such as covering future energy consumption increments.

  
  

3. Consider Additional Factors:

• Shadow-free Rooftop Space: Ensure you have sufficient shadow-free rooftop space for installation. Each 1kW solar system requires about 80-100 sq ft.

  Thus, for a 3.5kW system:

  Required Rooftop Area = 3.5 × 100 ≈ 350 sq ft

• Sanctioned Load: You can find details about your sanctioned load on your electricity bill. This is the maximum amount of system size that you can use which is capped at a limited sanctioned load set by most DISCOMs. Your solar system should align with this limit to ensure compliance and efficiency. In case you need a larger system size, then Atria can help you get a sanction for the same post discussion with you.

  

4. Additional Considerations:

• Future Energy Needs: Consider potential future increases in energy consumption, such as new appliances or changes in household size. Choosing a system slightly larger than your current needs can accommodate these changes.

• System Efficiency: Quality of solar panels and inverter efficiency can impact overall performance. opt for high-efficiency panels and reliable inverters from Atria Renewable to maximize energy production and system longevity.

  
  

By following these steps and factoring in these considerations, you can confidently size a solar power system that meets your energy needs and fits seamlessly with your Bengaluru home. If you need assistance with understanding your system requirement or installation, feel free to contact our team of experts for personalized advice and support