What’s the 15 kW Solar System Price in India with Subsidy? Explore ROI and Steps to Apply For a Subsidy

The 15 kW solar panel price in India with subsidy for on-grid solar systems for homes ranges between ~Rs. 6.42 lakh* in Lucknow, ~Rs. 6.57 lakh* in Delhi, ~Rs. 6.82 lakh* in Pune, and ~Rs. 7.42 lakh* in Bangalore. Since a 15 kW solar system can generate 21,000 to 21,750 units of electricity per year, it’s suitable for extremely large multi-storied villas and bungalows, as well as for small housing societies and commercial offices with annual power consumption within the stated range.

*Please note: The above-mentioned 15 kW solar panel price in India with subsidy for on-grid solar systems for homes is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW solar system price in India depends on your DISCOM charges, city, 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. 

As a homeowner, you can receive a maximum subsidy of Rs. 78,000 for installing a 15 kW on-grid solar system under the PM Surya Ghar Muft Bijli Yojana. However, if you’re installing this system for commercial purposes, you will not receive financial assistance from the government because commercial rooftop systems are not covered under this scheme. Furthermore, a 15 kW rooftop solar system for housing societies receives a solar subsidy set for housing societies (Rs. 18,000/kW for systems up to 500 kW).  

A 15 kW solar system is a worthwhile investment for homeowners who consume an average of ~60 units of electricity daily. The ROI this system offers is staggering. For instance, investing ~Rs. 6.82 lakh* in Pune, as the 15 kW solar panel price in India with subsidy, will save ~Rs. 1 crore* over the system’s 25-year life. That’s an impressive ROI of ~14.6x. No matter whether you invest the same amount in gold or mutual funds, nothing will match the ROI you get from a 15 kW rooftop solar panel system for homes.

*Please note: The above-mentioned 15 kW solar panel price in India with subsidy for on-grid solar systems for homes is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW solar system cost depends on your DISCOM charges, city, 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. Additionally, when calculating savings, we have considered an annual tariff escalation of 3% and an annual degradation of 1%. The actual final savings from a 15 kW on-grid solar system 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.

In this blog, we’ve listed the 15 kW solar panel price in India with subsidy across various cities, and provided details on the solar savings and ROI you will receive over the system’s 25-year life of generating free solar electricity. We’ve also explained the steps to apply for a subsidy, the benefits of installing a 15 kW on-grid rooftop solar system for homes, and its different types to help you choose the one best suited to your specific needs.

TL;DR Summary Box: How Much is the Subsidy on a 15 kW Solar System?

The subsidy homeowners receive for installing a 15 kW grid-connected solar system in India under the PM Surya Ghar Muft Bijli Yojana is Rs. 78,000. In Delhi and Uttar Pradesh, homeowners also receive a maximum state subsidy of Rs. 30,000 for a 15 kW system, bringing the total solar subsidy in these two states to Rs. 1.08 lakh.

However, if you’re installing the same 15 kW solar system in a small housing society, the subsidy will be calculated based on the assistance offered to housing societies, i.e., Rs. 18,000/kW. 

As a homeowner, you need to fulfill a few eligibility conditions, listed below, to claim a solar subsidy under the PM Surya Ghar Muft Bijli Yojana:

• You must be an Indian citizen with a valid electricity connection in your name with your DISCOM.
• You should install ALMM-approved, made-in-India solar panels.
• You should be the legal owner of the property where the installation will occur.
• You have never received a subsidy for systems up to 3 kW under any scheme before. 

Here are the main topics we’ve covered in this blog:

*Please note: The above-mentioned 15 kW solar panel price in India with subsidy for on-grid solar systems for homes is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW on-grid solar system 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. Additionally, the cost of a 15 kW solar system in India for hybrid or off-grid solar systems can vary from the stated range depending on the type of solar batteries, panels, brand, and inverter type you choose. SolarSquare installs rooftop solar systems for housing societies, homes, commercial buildings, and industrial facilities, using high-efficiency bifacial solar panels. We sell off-grid and hybrid solar systems in a select few cities.

**Please note: When calculating savings, we have considered an annual tariff escalation of 3% and an annual plant degradation rate of 1%. The final savings from a 15 kW on-grid solar system 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.

What’s the 15 kW On-Grid Solar System Price in India in 2025 without Subsidy?

The 15 kW solar system cost in India without subsidy for homes varies significantly depending on factors such as types of solar inverters and panels, the height of the solar mounting structure, and the solar net metering charges imposed by your DISCOM. The estimated cost of a 15 kW solar system in India without subsidy, therefore, ranges between ~Rs. 7.50 lakh* in Lucknow, ~Rs. 7.60 lakh* in Pune and Bhopal, and ~Rs. 8.20 lakh* in Bangalore.

Here’s a tabulated snapshot of the 15 kW solar system price in India for on-grid solar systems for homes without any financial assistance from the government:

*Please note: The 15 kW on-grid solar system price in India for homes listed in the section above is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW solar system cost in India depends on your DISCOM charges, city, 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. 

How Much is the Solar Subsidy in India?

Thanks to government financial support, the actual cost of solar system installation in India is significantly reduced. While most states receive a subsidy of Rs. 78,000 for 15 kW systems under the PM Surya Ghar Muft Bijli Yojana, the Delhi and Uttar Pradesh governments offer additional help on top of this. 

First, let’s check out the financial assistance offered by the central government under the PM Surya Ghar Scheme, which is the same across all states:

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

In addition to the financial assistance listed above, Delhi and UP homeowners also receive aid from their respective state governments. Let’s find out how much it exactly is:

• State subsidy in Delhi for 1 kW solar systems: Rs. 10,000
• State subsidy in Delhi for 2 kW solar systems: Rs. 20,000
• State subsidy in Delhi for systems  >=3 kW: Rs. 30,000
• State subsidy in UP for 1-2 kW solar systems: Rs. 15,000/ kW 
• State subsidy in UP for systems >=2 kW: Rs. 30,000

Now that we’ve given all the details about PM Surya Ghar tiered subsidy and the special assistance offered in Delhi and UP, you can check the table below to find out the exact total help you can get from the government for different kW solar systems in India: 

What’s the 15 kW Solar Panel Price in India with Subsidy in 2025?

The 15 kW solar panel price in India with subsidy for on-grid solar systems for homes ranges between ~Rs. 6.42 lakh* in Lucknow, ~Rs. 6.57 lakh* in Delhi, ~Rs. 6.82 lakh* in Pune, and ~Rs. 7.42 lakh* in Bangalore.

Here’s a side-by-side comparison of the 15 kW on-grid solar system price in India for homes before and after a subsidy, across multiple cities. Have a look!

*Please note: The 15 kW solar panel price in India with subsidy, and without one, listed in the section above is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW solar system price in India depends on your DISCOM charges, city, 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. 

How to Apply for a Solar Subsidy in India?

You must register your account on the PM Surya Ghar Muft Bijli Yojana National Portal to apply for a solar subsidy in India. It’s a very straightforward process. We’ve listed the simple steps you need to follow below.

• Step 1 – Go to the PM Surya Ghar Muft Bijli Yojana National Portal: Click on the “Apply for Rooftop Solar” icon on the website to begin your application under the national rooftop solar subsidy program.
• Step 2 – Create your profile using your electricity bill details: Select your state and electricity board (DISCOM). Then, when prompted, enter your customer account number to register your consumer account on the portal.
• Step 3 – Fill out the application form: Enter your name, contact details, and upload a copy of your most recent electricity bill for verification.
• Step 4 – Submit your bank account details: Upload a cancelled cheque and enter your account number. This will be the account to which the subsidy will be transferred after final approval. So, make sure you enter the details correctly.
• Step 5 – Pick an approved solar installer: Choose a company listed on the portal, such as SolarSquare.
• Step 6 – Sign the vendor agreement and upload it: Your chosen company will share a vendor agreement with you. Sign the agreement, and upload a scanned copy to the portal.
• Step 7 – Get the solar system installed: Your installer will set up the solar system and apply for net meter replacement with your DISCOM on your behalf. Then, the DISCOM will install a bidirectional net meter or a smart meter in your property. 
• Step 8 – Wait for DISCOM inspection: After installation, a DISCOM officer will inspect the system to confirm that everything is in working order. If everything complies with the rules, the DISCOM will issue a Solar Commissioning Certificate. 
• Step 9 – Download your commissioning certificate: Once you receive it, download it and upload it to the portal. Then, file a subsidy claim.
• Step 10 – Wait for the subsidy to be credited directly to your bank account: Once the application you submit in step 9 is approved, the subsidy will be sent directly to your registered bank account within 30 working days.

Types of 15 kW Solar Systems and Their Prices in India

The three types of photovoltaic systems you’ll come across in India are on-grid, off-grid, and hybrid. Before we explain how they differ and which one is ideal for you, let’s have a look at how much they cost. 

*Please note: The above-mentioned 15 kW solar panel price in India with subsidy for on-grid solar systems for homes is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW on-grid solar system 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. Additionally, the 15 kW solar system cost in India for hybrid or off-grid solar systems can differ from the stated range, depending on the type of solar rechargeable batteries, panels, brand, and inverter type you choose. SolarSquare installs residential and commercial rooftop systems for homes, housing societies, commercial buildings, and industrial facilities, using high-efficiency solar panels. We sell hybrid and off-grid solar systems in a select few cities.

Now comes the million-dollar question: which one is the best choice for you? Let’s get this sorted once and for all.

• When should you choose a 15 kW on-grid solar system? If you live in an urban area where power cuts are not a concern, the grid is extremely reliable, and power outages rarely happen, a 15 kW on-grid solar system will be ideal. 
• When should you choose a 15 kW off-grid or hybrid solar system? If grid supply is unavailable, you’ll need an off-grid solar system. A hybrid solar system is highly recommended in areas where power cuts are so frequent that a lead-acid or lithium battery bank is non-negotiable for backup during prolonged power outages.

Here’s a side-by-side table comparing all three types of 15 kW solar systems in India:

*Please note: The above-mentioned 15 kW solar panel price in India with subsidy for on-grid solar systems for homes is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW on-grid solar plate price 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. Additionally, the cost of a 9 kW solar system in India for hybrid or off-grid solar systems may vary from the stated range depending on the type of batteries, panels, brand, and inverter type you choose. SolarSquare installs rooftop solar systems for homes, housing societies, commercial buildings, and industrial facilities, using high-efficiency half-cut solar panels. We sell hybrid and off-grid solar systems in a select few cities.

Cost of a 15 kW Solar System in India vs ROI and Solar Savings Over 25 Years

You can use SolarSquare’s free solar power calculator to check the solar savings a rooftop solar system offers in your city, and compare it against the initial investment cost and the stunning ROI you’ll get. 

For clarity, we’ve created this table to take you through the 15 kW solar panel price in India with subsidy and the solar savings and ROI this same system will offer over its 25-year lifespan across various cities: 

*Please note: The above-mentioned 15 kW solar panel price in India with subsidy for on-grid solar systems for homes is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW solar plate price depends on your DISCOM charges, city, 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. Additionally, when calculating savings, we have considered an annual tariff escalation of 3% and an annual degradation of 1%. The actual final savings from a 15 kW on-grid solar system 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.

What’s the 15 kW Solar System Cost in India with a Solar Loan?

If you thought that paying out of your own pocket is the only way to go solar in India, we’d say, think again! Solar loans from banks and NBFCs have made solar installation in India easier, affordable, and stress-free. 

SolarSquare takes things to the next level by eliminating the upfront out-of-pocket investment through our zero-investment plan. 

Here’s why our customers love our zero-investment plan, and so will you:

• You don’t have to give any out-of-pocket upfront payment for installation: The government subsidy you receive is used to cover your upfront cost. As a result, you don’t have to pay anything out of your own pocket when the system is installed.
• The loan approval is quick and hassle-free: Loan approvals usually take no more than a day if you meet the basic eligibility requirements.
• You choose the installation plan and tenure based on your budget: You choose the EMI plan based on what works for you. Repayment can be spread over 6 to 60 months, and you can pick a tenure where the monthly EMI matches or stays below your previous electricity bill. This way, your monthly expenses stay steady while you switch to solar.

How Many Solar Plates are Required for a 15 kW Solar System?

You will require ~28 540-watt solar panels to make a 15 kW solar system. Needless to say, the number of panels needed will dwindle based on the wattage of the solar panel you choose. The higher the panel wattage, the fewer panels you’ll need to reach the desired system capacity. That’s one of the main reasons why high-wattage solar panels are preferred over older modules that used to come in lower wattages. 

Here’s the formula you can use to calculate the estimated number of panels based on the solar panel wattage you’re using:

Here’s a simplified table, taking you through the calculation process around the number of 540-watt solar panels needed to reach 15 kW system capacity:

Is 15 kW Enough to Run a House?

A 15 kW solar system is more than enough to power extremely large bungalows and villas (and even small housing societies and home offices), where the annual power consumption is between 21,000 and 21,750 units.

Here’s a tabulated snapshot of how much electricity a 15 kW solar system can generate during its first year across various Indian cities. If that looks like the annual consumption at your home, too, this is an ideal system capacity to lower your electricity bills to zero.

*Please note: The generation figures mentioned above are approximate and meant for general reference only. Actual output can vary from these estimates due to multiple factors, including pollution levels in your city, changes in sunlight availability, weather patterns, roof angle, panel orientation, shading from surrounding objects, and dust accumulation. Technical elements, such as solar panel efficiency, inverter performance, wiring quality, and system losses, can also impact generation levels. Even routine maintenance and regional temperature fluctuations can affect the amount of power your system produces over time.

How Many Appliances Can Run on a 15 kW Solar System?

With the capacity to generate 21,000 to 21,750 units of electricity in a year, a 15 kW solar system can power almost all home appliances, including the ones listed below:

• 10-12 fans
• 10-15 lights
• 2-3 refrigerators
• 1 washing machine
• 1 water heater
• 2-3 air conditioners of 1.5 or 2 tons.
• Additional appliances like TVs, laptops, and kitchen gadgets

What are the Benefits of installing a 15 kW On-Grid Solar System for Homes in India?

Installing a 15 kW on-grid solar system can make your electricity bills zero, save tens of lakhs of rupees since you won’t be paying hefty bills any longer for as long as your system will last (which is at least 25 years with proper maintenance), and reduce air pollution since 15 kW is equivalent to planting 588 full-grown trees.

Let’s have a closer look at all the benefits of choosing a 15 kW on-grid solar system in India:

• It’s most affordable among all types of solar systems: Since you won’t require lead-acid or lithium batteries with an on-grid solar system, it’s the most affordable option. It’s an ideal choice for you if your area doesn’t face frequent power cuts.
• It makes electricity bills near zero: A 15 kW solar system generates enough electricity to cover all your energy needs. Since you no longer rely on expensive grid electricity, your bills will be reduced to almost zero.
• It reduces air pollution: A 15 kW solar system is equivalent to planting 588 mature trees, which can offset ~3,88,000 kg of carbon dioxide from the atmosphere over 25 years. 

Why Choose SolarSquare’s 15.12 kW Solar System?

When building a 15 kW solar system with 540-watt solar panels, the exact math comes to 27.7 panels (15,000 ÷ 540). You can’t install a 0.7 panel. It will have to be either 27 or 28 panels. 

The problem with using 27 panels is that the resulting system will be just 14.58 kW. Since it is smaller, it won’t meet all your energy needs, increasing your reliance on grid electricity. The result would be bills higher than they should be. This, in turn, will lower the savings you could have had had you installed a solar system that could actually cater to all your energy needs.

That’s why SolarSquare introduced a 15.12 kW solar system. It uses 28 panels (15,120 ÷ 540), ensuring your savings remain consistently high. Our 15.12 kW solar system will deliver a higher daily energy output, boosting your solar savings. 

Conclusion

The 15 kW solar panel price in India with subsidy for on-grid solar systems for homes ranges between ~Rs. 6.42 lakh* in Lucknow, ~Rs. 6.57 lakh* in Delhi, ~Rs. 6.82 lakh* in Pune, and ~Rs. 7.42 lakh* in Bangalore. It’s a worthwhile investment for homes that use 21,000 to 21,750 kWh of electricity yearly. Choosing high-wattage, latest mono-PERC or TOPCon solar panels ensures you receive a higher ROI than any other investment, no matter your city.

*Please note: The above-mentioned 15 kW solar panel price in India with subsidy for on-grid solar systems for homes is indicative as of 8th November 2025 for the SolarSquare Blue 6ft variant. The final 15 kW solar system price in India depends on your DISCOM charges, city, 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. 

If you still have any doubts about installing a rooftop solar system, you can book a free solar consultation call with SolarSquare. 

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FAQs

Q1. How many units per day can a 15 kW solar panel system produce?

Ans. A 15 kW solar system generates around 21,000 to 21,750 units per year, which comes to ~58 to ~60 units per day on average. Daily output is higher in summer and drops during the monsoon, but across the year, the difference evens out because summer gains cover the seasonal dips.

Q2. How many batteries are required for a 15 kW solar system?

Ans. A 15 kW solar system might need 7 to 10 lithium batteries of 10 kWh each, depending on how much backup you want. This equals about 70-100 kWh of total storage, enough to power your household for one whole day. Please note: The suggested battery bank size of 70 to 100 kWh for a 15 kW solar system is based on general assumptions around household energy use and backup needs in India. Actual requirements may differ depending on your specific power consumption, backup duration, appliance load, location, and system performance. Factors such as depth of discharge (DoD), battery chemistry, battery efficiency, usable vs. nominal capacity, and future energy demands can also affect sizing. This guidance is for informational purposes only.

Q3. Who is eligible for the PM Surya Ghar Subsidy?

Ans. Indian citizens who have previously never benefitted from a subsidy for systems up to 3 kW can receive a solar subsidy under PM Surya Ghar Yojana if they install a grid-connected solar system, use ALMM-approved, made-in-India solar panels, have a valid electricity connection to their name with their DISCOM, and are the legal owners of the roof or property where the system is supposed to be installed.