20kW Solar System Price In India – Your Complete Guide (2025)

Nikita
May 6
8 min read

Updated: May 13

Homeowners these days are choosing to go solar. Why? Going solar is an efficient solution for larger properties. Why do you think your home needs a 20 kW solar system? Well, you get to know that after reading our complete guide on 20 kW solar systems in india. The price of a 20 kW solar system depends on its brand choice alongside its type selection as either an on-grid or off-grid configuration.

With the government offering monetary incentives, homeowners can secure the 20 kw solar system at a more affordable price in India with subsidy inclusion. Let's understand its workings, benefits, types, and, most importantly, subsidies!

20 kW Solar System Price List & Specification

Getting a 20-kW solar panel system is beneficial for large homes that have large energy needs. The average cost of a 20 kW solar system in India ranges between ₹9,00,000 and ₹13,00,000. The price range of a 20 kW solar system in India depends on the system type and location of installation.

Let's understand the price list and specifications of a 20 kW Solar System through the following table:

Model	Price List (in Rs)
20 kW on-grid Solar System	9 lakhs
20 kW off-grid Solar System	13 lakhs
20 kW Hybrid Solar System	16 lakhs

Note: please remember that the price and specifications of a 20 kW solar system in India depend on the system type and location of installation.

20 kW Solar System subsidy India

The Indian government provides financial support to foster home-based solar power systems. Following are the details of the 20 kW Solar System subsidy in India:

Solar System Capacity	Applicable Subsidy (₹)
1 kW	30,000/-
2 kW	60,000/-
3 kW and Above	78,000/-*
Resident Welfare Associations (RWA) and Group Housing Societies (GHS)	Rs. 78,000/- for common facilities up to 500 kWp @ 10 kWp per house, with the upper limit being inclusive of individual rooftop plants already installed by individual residents in that GHS/RWA at the time of installation of RTS for common activity.
Note: *The subsidy amount is fixed for rooftop solar systems of 3 kW and above capacity.

Systems running up to 2 kW get a Rs. 30,000 subsidy per kW.
Systems running up to an additional capacity of 3 kW get Rs. 18,000 per kW.
For all solar systems larger than 3 kW, get a fixed Rs. 78,000 subsidy.
For group house societies and resident welfare associations, the subsidy is set at Rs. 18,000 per kW. (includes common facilities; 500 kW capacity where each house gets 3 kW; EV charging)

Note: For detailed information, please refer to the scheme guidelines.

20kW solar system price in india with subsidy

System capacity	Price (without subsidy)	Subsidy	Price (with subsidy)
20 kW on-grid solar	₹9,00,000	₹78,000	₹8,22,000
20 kW off-grid solar	₹11,00,000	Not applicable	No change
20 kW hybrid solar	₹13,00,000	₹78,000	₹12,22,000

Note: Installation and other circumstances could affect the approximate prices.

20 kW System Installation Cost in India

A 20 kW solar system implemented in India costs from ₹9,00,000 to ₹16,00,000 based on its specifications.

The cost for on-grid systems stands at ₹8,00,000 to ₹9,00,000, which includes both panels and inverter components.

The 20 kW off-grid solar system requires additional battery costs that amount to between ₹10,00,000 and ₹13,00,000.

Among all solar systems, the 20 kW hybrid system stands as the costliest option because its installation expenses reach from ₹13,00,000 to ₹16,00,000.

The 20 kW solar system price in India receives a subsidy cut that reaches up to ₹78,000.

The combination of government incentives, such as tax rebates and net metering programmes, leads to substantial reductions in overall system expenses. Different variables that affect the pricing include what type of solar panels get selected and both the complexity of the installation along with the geographical location of the property. The pricing of 20 kW solar systems in India depends on the choice of panel brands, as premium products result in higher costs. Local installation companies allow customers to decrease labour expenses, along with providing trustworthy installation quality.

Benefit and Working of 20 kW Solar System

The working of a 20 kW solar system involves solar panels collecting daylight to generate electricity, which becomes usable power. Home electrical items receive power supply directly from the solar system, whereas off-grid 20 kW solar setups store energy in batteries for later use.

The sending of extra energy to the power grid under grid-tied scenarios reduces overall power bills for consumers. The 20 kW solar panel system includes two main components, which are solar panels and an inverter, as well as mounting structures alongside optional battery storage.

The main advantage of buying a 20 kW solar system in India becomes apparent due to its long-term savings. The system decreases carbon emissions while creating a cleaner and greener environmental future during its operation period. Households can access the 20 kW solar system price in India through government subsidies.

A 20 kW solar system helps maintain power reliability during electricity failures and improves stability for electrical connections that face intermittent grid service.

Funds invested in a 20 kW solar system will be returned within 5 to 6 years because electricity bill savings combine with available incentives. The value of properties elevates when homeowners install solar power systems, and these systems demonstrate serious dedication toward sustainable environmental practices.

Installation of a 20-kilowatt solar panel delivers less cost per watt than installing smaller systems because of its efficiency.

The overall cost of a 20 kw solar system provides a profitable opportunity for homeowners whose houses use lots of electricity.

Types of 20 kW Solar system

To cater to the varying electricity needs of customers, there are three different types of solar systems available in India.

On-grid 20 kW solar system (with grid export)
Off-grid 20 kW Solar System (with Battery Backup)
Hybrid 20 kW Solar System (Solar Battery Storage with Grid Connection)

20 kW off Grid Solar System Specifications

Also known as a solar system with battery backup, off-grid solar systems are designed for places with no access to the grid or when the homeowner wants independence from power outages. This kind of solar system comes with solar batteries and can function effectively independent of the grid connection. The main components include solar PV modules, a solar inverter, a solar battery (normal or lithium-ion), and the balancing equipment (mounting structure, MC4 connectors, DC wire, DCDB box, and earthing kit).

With this system, the unconsumed electricity does not go back to the grid. Instead, solar batteries store it. It is a complete power bank in itself and provides a power backup when your solar panels aren’t producing electricity. On average, a 20 kW off-grid solar system generates 75 to 85 units per day.

Here are some key highlights of having off-grid 20-kilowatt solar panels at home:

It operates without a grid; the battery serves as both a grid and a device for storing power.
When the solar system does not generate electricity due to a lack of sunshine, it uses the stored power to run electrical appliances.
Ensures reliable power supply

20 kW Hybrid Solar System Specification

The hybrid solar system combines the functionality and features of both on-grid solar systems and off-grid solar systems. While a hybrid system stays connected with the conventional utility power grid, it also contains a battery backup. The backup system allows the user to not only export power back to the grid once their battery and appliances are fully charged but also draw from it in times of excess power demand. We recommend this type of solar system for reliable power backup, to eliminate unexpected power cuts, and to lower energy bills. The main components include solar panels, a solar inverter, a solar battery (normal or lithium-ion), and a charge controller. The system requires a generator to provide backup power.

Here are some key highlights of having a hybrid solar system at home:

Excessive energy can be both stored (in the battery) and exported back (to the grid), resulting in no wastage.
With features like battery backup, its demand stays firm in the market.

20 kW On-Grid Solar System Specification

Also known as a grid-tied system, an on-grid solar system allows you to draw electricity from both your solar system and the grid. It consists of only two main components — solar panels and a solar inverter. Since the system lacks a solar battery or similar storage device, it cannot provide power backup. Solar panels generate the electricity, which then flows through the inverter for conversion from DC to AC for household use.

If you generate more electricity than you consume, the utility grid will automatically export the excess power. In this way, you can export extra or unconsumed electricity to the grid and get compensated for it on days when your consumption exceeds generation. On average, a 20 kW on-grid solar system produces about 75 to 85 units per day, depending on your location.

Here are some key highlights of having on-grid 20-kilowatt solar panels at home:

Since this type of solar system requires fewer components, it is on the affordable side — no recurring costs.
We consume electricity in accordance with our home's power needs.
The grid receives the excess power you generate. Net metering ensures and keeps a record of all units exchanged between you and the grid, which reflects periodically in monthly bills.
The utility grid can be used to draw power in case of less energy generation from the solar system and at times when there is no generation, like at night.

20 kW Solar system Facts & Benefits

In well-brightened daily conditions, a 20 kW solar system produces between 75 and 85 units of electricity.
The power system fits both big family residences and schools and other business facilities that generate electricity bills exceeding ₹14,000 per month.
In a solar panel setup that provides 20 kW of power, there are 60–70 panels spread across a 120-square-metre rooftop area.
The selection between grid-connected and independent power generation systems, as well as their combination through hybrid power, depends on your geographical location and energy demand requirements.
Areas that experience unpredictable power grids and are in distant locations will find the 20 kW off-grid solar system as the optimal power solution.
Grid-connected net metering provides an opportunity to convert extra produced electricity into cash through the power grid.
Rural areas alongside semi-urban locations benefit from backup measures for battery power, which secure a continuous energy supply despite power outages.
The price of a 20 kW solar system in India spans from ₹9 lakhs to ₹16 lakhs based on their type.
A solar panel system sized at 20 kilowatts leads to major reductions in electric costs and environmental carbon emissions for extended periods of time.
A 20 kw solar system enhances property value and grants power independence and monetary savings for the long term.

Frequently asked questions

What is the average cost of a 20kW solar system in India?

The average cost of a 20 kW solar system in India ranges between ₹9,00,000 and ₹16,00,000. The price range of a 20 kW solar system in India depends on the system type and location of installation.

How much electricity can a 20kW solar system generate daily?

Your 20-kW solar panel system in India can generate around 75 to 85 units of electricity daily, depending on a single factor—sunlight availability.

What types of 20 kW solar systems are available in India?

There are three main types of 20 kW solar systems available in India:

On-grid solar system

Off-grid solar system

Hybrid solar system

How much roof space is required for a 20 kW solar system?

A 20 kW solar system typically requires about 90–100 Sq. m. of shade-free roof space area to install.

Are there any government subsidies for installing a 20 kW solar system?

Yes, the Indian government offers subsidies for installing a 20kW solar system under schemes like the PM Surya Ghar Yojana, reducing the cost by up to ₹78,000 for systems above 3 kW.

What is the typical payback period for a 20kW solar system?

The payback period for a 20-kW solar system is 5 to 6 years. The payback period depends on the electricity you saved and your system type.

What kind of maintenance does a 20kW solar system require?

A 20 kW solar system requires regular cleaning of solar panels and an annual system check in the name of maintenance.