4 kW Solar Panel Price in India With and Without a Subsidy

The 4 kW solar panel price in 2025 ranges from ~ Rs. 2,50,000* in Ahmedabad to ~ Rs. 2,85,000* in Bengaluru. However, these prices are further reduced since the Indian government offers homeowners and housing societies a subsidy under the PM Surya Ghar Muft Bijli Yojana for installing on-grid rooftop solar systems. However, if you’re installing commercial rooftop solar systems, there’s no subsidy assistance offered under this scheme. 

The reduced 4 kW solar system price in India with subsidy ranges from ~ Rs. 1,52,000* in Lucknow to ~ Rs. 2,07,000* in Bengaluru. 

*Please note: The above-mentioned 4 kW solar system price is indicative as of 8th July 2025 for the SolarSquare Blue 6ft variant. The final 4 kW solar system cost depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, etc. Prices are subject to change.

Naturally, an investment of lakhs requires clarity on whether installing a 4 kW solar system can fulfil all your energy requirements. If you have such questions too, then you’ve landed on the right page. 

We’ve broken down the 4 kW solar panel price in India with and without a subsidy, the savings you can expect over 25 years (the minimum lifespan of SolarSquare’s solar systems), and how much electricity a 4 kW system generates. Dive in for details.

What is the 4 kW Solar Panel Price in India With and Without A Subsidy? 

The central government offers homeowners a subsidy under the PM Surya Ghar Muft Bijli Yojana. Here are the subsidy rates:

• Solar subsidy for 1-2 kW solar systems: Rs. 30,000 per kilowatt
• Solar subsidy for additional capacity over and above 2 kW up to 3 kW: Rs. 18,000
• Solar subsidy for 3 kW or higher capacity: Rs. 78,000  

However, if you’re from UP, the state government offers an additional subsidy on top of the subsidy offered by the center for installing a rooftop solar panel system for homes. Here are the additional state subsidy details for UP residents:

• State subsidy for 1-2 kW solar systems: Rs. 15,000/ kW 
• State subsidy for systems >=2 kW: Rs. 30,000

Based on the subsidy details we’ve listed, here’s a snapshot of the 4 kW solar panel price in 2025 with and without a subsidy. Have a look:

*Please note: The above-mentioned 4 kW solar system price is indicative as of 8th July 2025 for the SolarSquare Blue 6ft variant. The final 4 kW solar system cost depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, etc. Prices are subject to change.

Types of 4 kW Solar Systems in India and Their Prices

The three types of solar systems that dominate the Indian market include:

• On-grid solar systems
• Off-grid solar systems
• Hybrid solar systems

Before we walk you through the specifics of these systems, let’s check out their prices:

*Please note: SolarSquare does not install off-grid or hybrid solar systems. The 5 kilowatt solar panel prices listed above for these system types are standard market estimates. Also, the 4 kW solar panel prices listed above are indicative as of 8th July 2025 for the SolarSquare Blue 6ft variant. The final 4 kW solar panel price in India depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, etc. Prices are subject to change.

Now that you’ve seen the prices of all three types, let’s help you understand which type is best for residential installations and why.

On-Grid Solar System

An on-grid rooftop solar system is also known as a grid-tied PV system. This system is connected to the main utility grid through a bi-directional net meter that keeps a record of the unit exchange between your solar system and the utility grid:

• If your system exports more electricity to the grid than it imports, you earn credits from the DISCOM.
• If your system imports more units from the grid than it exports, you pay for the difference.

If the utility grid in your area is reliable and does not experience frequent, prolonged power outages since the government offers a subsidy for installing on-grid rooftop solar systems. 

Off-Grid Solar System

Unlike on-grid systems, which are connected to the main utility grid, off-grid systems are standalone (not attached to the power grid). Instead, they have a battery bank (usually composed of lithium batteries) which keeps homes powered during the nighttime.  

Off-grid systems are suitable for remote areas with no power grid. Here’s why you should go for on-grid systems instead of off-grid systems if your grid is reliable:

• No subsidy assistance: The Indian government does not offer a subsidy for installing off-grid systems.
• More expensive: Off-grid systems rely on batteries, which are not only expensive to purchase but also expensive to maintain.  

Hybrid Solar System

A hybrid solar system is connected to the utility grid and the battery bank, both. It’s also the most expensive of the three types. An on-grid system, which is a lot cheaper than the hybrid system and much easier to maintain since it doesn’t require batteries, still emerges as a clear victor as long as the power grid is reliable. 

What is the 4 kW Solar Panel Price With Solar Loan?

Think you can’t afford installing a solar system despite the added subsidy benefits? We’d say think again!

Solar loans have made installing on-grid solar at homes super affordable. Banks and NBFCs (non-banking financial companies) are great options if you need financial assistance for installing solar at your home. 

Furthermore, you can also opt for SolarSquare’s zero-investment solar loan. Here’s what makes our zero-investment scheme truly unique: 

• Zero upfront investment: The government subsidy you get effectively makes the down payment zero. That’s because the down payment is equal to the subsidy you get. Hence, you’re literally paying nothing from your pocket upfront. 
• Super-fast loan approval: Your loan application gets approved within 24 hours.
• EMIs that match your budget: We offer flexible EMI tenures ranging from 6 months to 60 months. Choose an EMI option that matches your budget. 

Is 4 kW the Right Capacity For Your Home?

A 4 kW solar system can generate 5,600 to 5,800 units of electricity yearly. If the yearly power consumption in your home falls within this unit bracket, installing a 4 kW solar system will take care of all your energy requirements. 

Here’s a list of appliances that a 4 kW solar system can easily support: 

• AC
• Washing machine
• Refrigerator
• TV
• Home lighting system and fans
• Geyser
• All common kitchen appliances

Not sure how many units of electricity your household consumes? Here’s what you can do:

• Review your electricity bills from last year 
• Calculate the average number of units consumed in a year
• Divide the yearly units consumed at your home by the number of units a 1 kW solar system generates (1,400* units/year).

*On average, a 1 kW solar system produces 1,400-1,450 units per year.

Here’s a tabulated snapshot of the estimated solar system size based on the units consumed: 

Need further assistance in determining the right solar system capacity for your home? Watch this video that explains how to find out the right solar system size for your home, step-by-step.

What Are the Benefits of Installing a 4 kW Solar System?

Installing an on-grid solar system in India offers the following benefits:

• Long-term savings: Installing a 4 kW solar system in Nagpur will save ~ Rs. 22.11 lakh* in 25 years. Not from Nagpur, but want to check how much money going solar will save for you? Use this free rooftop solar calculator by SolarSquare. 
• Reduced carbon footprint: Installing a 4 kW solar system in India is equivalent to planting 157 full-grown trees. It offsets 4,704 kg of carbon dioxide annually.
• Quick ROI: The installation cost gets recovered within 3-5 years. Post that, your plant will continue generating free electricity for you for as long as it lasts (and, the minimum lifespan of a well-maintained solar system is 25 years). 

*Please note: While calculating savings, we have considered annual tariff escalation at 3% and annual degradation at 1%. The actual final savings from solar installation in India depend on the types of solar panels you’ve installed and their efficiency, intensity of sunlight your rooftop receives, orientation of the panels and tilt angle, the pollution level and weather conditions in your city, the temperature, shadow on the roof, impact of dirt/dust, and how well you maintain your panels after installation.

Why Choose SolarSquare’s 4.32 or 4.86 kW Solar Systems?

Kyunki, mehangi bijli se muft bijli tak ka safar aasaan banaata hai SolarSquare!

In contrast to standard 4 kW systems with 330-watt modules, SolarSquare offers two variations – 4.32 kW and 4.86 kW – with advanced 545-watt mono-PERC half-cut bifacial modules. 

If you install a standard 4 kW system with 330-watt modules, you’ll need 13 solar panels to build the system of the desired capacity. On the contrary, with SolarSquare’s 545-watt modules, the number of panels required will be less:

• For 4.32 kW Systems: 4320 watts / 545 watts = 7.92, rounded off to 8 panels
• For 4.86 kW Systems: 4,860 watts / 545 watts = 8.91, rounded off to 9 panels

By using higher-wattage modules, you slash your panel count from 13 to 8 or 9, which has the following benefits:

• Better aesthetics: By installing powerful half-cut bifacial panels, you can reduce the number of modules from thirteen to eight or nine. This results in a cleaner, uncluttered roof setup. 
• Leaner budget: Fewer panels require less hardware and wiring. This reduces both the hardware cost and the installation time.
• Extensive 5-year after-sales services: Gain access to a minimum of 45 scheduled maintenance visits by SolarSquare’s experts over the next five years, ensuring your system gets thorough deep cleaning and proactive performance checks.

Conclusion

Installing a 4 kW solar system in India is a win-win situation for homeowners. Not only do you get a subsidy under the PM Surya Ghar Muft Bijli Yojana, which reduces the final 4 kW solar panel price substantially, but you also end up saving almost ~ Rs. 22.11 lakh* in 25 years in Nagpur. That’s because once the system’s cost breaks even within 3-5 years, it continues to generate free electricity throughout its life. 

*Please note: While calculating savings, we have considered annual tariff escalation at 3% and annual degradation at 1%. The actual final savings from solar installation in India depend on the types of solar panels you’ve installed and their efficiency, intensity of sunlight your rooftop receives, orientation of the panels and tilt angle, the pollution level and weather conditions in your city, the temperature, shadow on the roof, impact of dirt/dust, and how well you maintain your panels after installation.

Even if you consider that the efficiency of solar panels degrades annually by 1%, the electricity tariffs in India increase by 3-6% every year. This means that installing solar is the best bet to shield yourself from rising electricity costs while contributing to the planet’s health. 

So, why wait any longer, especially since the government will offer a subsidy only until it reaches its target of solarizing 1 crore Indian homes? Whether you’re a homeowner or you want to book rooftop solar for housing societies, book a free consultation with SolarSquare now. 

FAQs

Q1. What is the cost of a 4 KV solar panel?

Ans. Here’s a snapshot of the 4 kW solar panel price in India with subsidy: Pune: ~ Rs. 1,77,000* Bhopal: ~ Rs. 1,82,000* Lucknow: ~ Rs. 1,52,000* Jaipur: ~ Rs. 1,97,000* Ahmedabad: ~ Rs. 1,72,000* Bengaluru: ~ Rs. 2,07,000* Hyderabad: ~ Rs. 1,82,000* Delhi: ~ Rs. 1,92,000* Chennai: ~ Rs. 1,82,000* *Please note: The above-mentioned 4 kW solar panel price is indicative as of 8th July 2025 for the SolarSquare Blue 6ft variant. The final 4 kW solar system cost depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, etc. Prices are subject to change.

Q2. How many solar panels are required for a 4 kW solar system?

Ans. Here’s the formula to calculate the number of panels: System capacity (in watts) divided by the module capacity (in watts) Suppose, you’re using 545-watt modules to erect a 4 kW system, here’s the calculation for the number of panels: 4,000 watts divided by 545 watts = 7.33, rounded off to 8 panels.

Q3. What is the subsidy for a 4 kW solar system?

Ans. Here are the subsidy details for a 4 kW on-grid rooftop solar system in India: You will get a subsidy of Rs. 78,000 for installing a 4 kW solar system under the PM Surya Ghar Muft Bijli Yojana. If you’re from UP, you will get an additional state subsidy of Rs. 30,000, bringing the total subsidy on an on-grid 4 kW solar system to Rs. 1,08,000.

Q4. How many ACs can run on a 4 kW solar system?

Ans. A 4 kW solar system can run one or two ACs (1.5 tons each). Whether it supports one AC or two depends on how many other heavy appliances you are using.

Q5. Is 4 kW enough to run a house?

Ans. Yes. A 4 kW solar system generates 5,600 to 5,800 units of electricity every year which is enough to run a 3 BHK home.

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