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Solar Faqs Latest Questions

Rishi
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Rishi
Asked: January 21, 2025

Where can I buy a solar panel for my rooftop solar?

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  • Manish Kumar
    Manish Kumar
    Deputy Editor at Saur Energy International | Answer on January 21, 2025 at 12:51 pm

    In India, only a few companies offer direct sales of solar panels to customers through e-commerce platforms. However, due to the availability of certain panel manufacturers, purchasing panels online is possible. The country has around 130 solar panel manufacturers, with approximately 95 registered uRead more

    In India, only a few companies offer direct sales of solar panels to customers through e-commerce platforms. However, due to the availability of certain panel manufacturers, purchasing panels online is possible. The country has around 130 solar panel manufacturers, with approximately 95 registered under MNRE’s ALMM (Approved List of Models and Manufacturers).

    Most module manufacturers do not sell solar panels directly to customers for rooftop solar projects. Instead, these panels are typically supplied by vendors who handle project installation. If you have a preference for a specific solar panel brand, you can request your vendor to source those panels or compatible inverters to meet your requirements. Vendors often have exclusive arrangements with manufacturers to supply these products. However, it is worth noting that many vendors offer only a limited selection of panel brands, restricting customer choices.

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Nitin
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Nitin
Asked: June 20, 2024

My installer tells me my solar inverter should be of higher capacity than planned solar installation? How much over capacity should I need?

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  • M R Gundurao
    M R Gundurao
    Product Manager- Solar & BESS, FIMER | Answer on June 20, 2024 at 5:46 pm

    Installing a solar inverter with a higher capacity offers several advantages. Firstly, it provides flexibility to increase the DC capacity of the solar array in the future without needing to replace the inverter. This reduces the overall stress on the inverter components and lowers the probability oRead more

    Installing a solar inverter with a higher capacity offers several advantages. Firstly, it provides flexibility to increase the DC capacity of the solar array in the future without needing to replace the inverter. This reduces the overall stress on the inverter components and lowers the probability of failures over time.

    However, it’s important to note that installing a significantly higher capacity inverter than necessary is not always required. Most inverters are designed to operate efficiently even in higher ambient temperatures. However AC to DC ratio, typically ranging from 1:1 to 1:1.2, can be sufficient to ensure optimal performance and reliability without the need for excessive overcapacity in the inverter.

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Daulat Kothari
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Daulat Kothari
Asked: April 19, 2024

How to calculate ROI for a solar system?

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  • Manish Kumar
    Manish Kumar
    Deputy Editor at Saur Energy International | Answer on May 6, 2024 at 5:42 pm

    To calculate your solar ROI, first, subtract what you spent initially from how much you'll save over the lifetime of your solar system. Then, divide this by your initial investment, and multiply by 100 to get the percentage. Keep in mind that grid power costs might continue to rise, enhancing your RRead more

    To calculate your solar ROI, first, subtract what you spent initially from how much you’ll save over the lifetime of your solar system. Then, divide this by your initial investment, and multiply by 100 to get the percentage. Keep in mind that grid power costs might continue to rise, enhancing your ROI with each year possibly.

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Suraj
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Suraj
Asked: June 5, 2024

How much I need to pay for my rooftop solar plant

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  • Solar Faqs Team
    Solar Faqs Team
    Team of Solar Faqs | Answer on June 5, 2024 at 1:06 pm

    You need to pay the full cost of the rooftop solar project under the PM Surtya Ghar scheme. The govt later disburses the subsidies to your account usually in 1-2 months.

    You need to pay the full cost of the rooftop solar project under the PM Surtya Ghar scheme. The govt later disburses the subsidies to your account usually in 1-2 months.

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Rajendra
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Rajendra
Asked: July 17, 2024

What advancements have been made in solar technology that are specifically relevant to India’s climate and geography?

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  • Manish Kumar
    Manish Kumar
    Deputy Editor at Saur Energy International | Answer on July 17, 2024 at 11:05 am

    The major advancement in technology is the progression on more efficient solar modules. Earlier India saw polycrystalline modules which had lesser efficiencies. Later major solar module makers started making mono-PERC technology based solar modules which could offer effiiencies of around 21%. Now thRead more

    The major advancement in technology is the progression on more efficient solar modules. Earlier India saw polycrystalline modules which had lesser efficiencies. Later major solar module makers started making mono-PERC technology based solar modules which could offer effiiencies of around 21%. Now the country is slowly moving to TOPCon technology which offers efficiencies higher than mono-PERC. Another advancement had been was in bringing more Wp panels. Now India has panels having a maximum Wp power of upto 680Wp. Higher Wp power means that to generate the same amount of solar power we would need lesser number of panels as a single higher power panel can produce enough power.

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Mohandas
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Mohandas
Asked: October 16, 2024

What happens after 20 years of solar panels?

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  • Solar Faqs Team
    Solar Faqs Team
    Team of Solar Faqs | Answer on October 16, 2024 at 12:24 pm

    Usually solar panels degrade at the rate of 0.5% to 0.8% oer year based on the technology used and the degradation rate. So after 20 years, if the degradation rate is 0.5%, the total effiiency of the solar panel will remain 90% instead of 100%.

    Usually solar panels degrade at the rate of 0.5% to 0.8% oer year based on the technology used and the degradation rate. So after 20 years, if the degradation rate is 0.5%, the total effiiency of the solar panel will remain 90% instead of 100%.

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Dhaval
  • -1
Dhaval
Asked: June 11, 2024

How can one determine the right solar system size for their home or office?

  • -1
  • Solar Faqs Team
    Solar Faqs Team
    Team of Solar Faqs | Answer on June 11, 2024 at 11:17 am

    One way to access your demand is to find out the average consumption of your household in a year. This could be done by adding all the units your consumed monthly and dividing the final amount with 12. This will give uyour averrage annualy consumption. You have to compare the average monthly productRead more

    One way to access your demand is to find out the average consumption of your household in a year. This could be done by adding all the units your consumed monthly and dividing the final amount with 12. This will give uyour averrage annualy consumption. You have to compare the average monthly productionn of 1 KW of a solar panel and find out how much capacitty you may require to fulfil your monthly power units with solar. Solar installers typically assess energy consumption patterns and available roof space to recommend an appropriate system size. Factors such as budget and future energy needs also play a role in determining the system size.

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Swapanil Wakade, Ecofy

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    Sai Charan Kuppili, Jinko Solar

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      Manjunath AR Global Product Manager, Fimer

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