4 KW solar panel price in India: Types of solar systems

A 4 KW solar system is capable of satisfying the power requirements of Indian households very easily. These solar systems work with solar photovoltaic panels. 

Notably, the 4 KW solar system price differs as per the quality or model of the system and the model of the inverter too. 

If you want to know more, read this blog to gain crucial insights on the 4 KW solar panel price, working, specifications, subsidy, and more!

Working of a 4 KW Solar System

Before we proceed to the 4 KW solar panel price and specifications, it is significant to understand the working mechanism of a 4KW solar system.

Solar panels are generally fabricated from silicon. When these panels receive sunlight, the particles of light get trapped in the thin silicon layer of the solar panels. They knock electrons out from the silicon atoms and cause them to move.

Such formation of photovoltaic charge creates an electric current, direct current (DC electricity). It is then collected by the wiring in solar panels. Then, the solar inverter converts the DC electricity to AC electricity. 

A 4 KW solar system generates an average of 16 units of electricity daily. The per month output will be about 480 units, and the output for one year will be around 5,760 units.

4 KW Solar Panel Price List in India 

Various factors influence the 4 KW solar system price, including the model, type of solar cells used, brand, etc.

In India, the 4 KW solar panel price range is between Rs. 1,80,000 to Rs. 2,80,000. This price range is exclusive of the government subsidy, which differs from state to state and is subject to eligibility and the type of solar system selected (we will discuss this in the later part of this blog, keep reading!)

Types of Solar Systems

The three types of solar systems are – on-grid, off-grid, and hybrid. Let us learn about them briefly!

An on-grid solar system is also known as a grid-tied solar system. It is connected to the power grid. The energy that the solar system produces during the day is used to run the household, and the excess of it is transported to the grid. 

At night, electricity is imported from the grid. A net meter is installed that keeps a tab of this power exchange. If you’ve used electricity beyond what your solar system has generated, you’ll pay the discom for the units used. 

If you’ve supplied units to the grid, the discom pays you. 

  • Off-Grid Solar System

Off-grid solar systems are not connected to the power grid and rely completely on the self-production of solar energy. These are independent systems that use battery storage to meet household power requirements 24×7.

Batteries are a vital component of such systems, without which these systems cannot store electricity for usage at night. 

  • Hybrid Solar System

A hybrid solar system is a fusion of features of on-grid and off-grid systems. It’s grid-tied as well as equipped with battery storage systems. 

4 KW Solar Panel Price And Specifications

Now, let us understand the significant specifications and how these affect the 4 KW solar panel price. 

If you select the solar panels fabricated with monocrystalline PV cells, the 4 KW solar panel price will be more, as this type of solar panel offers higher efficiency of about 19 to 20%. 

On the other hand, polycrystalline solar panels are comparatively lower in cost, with an efficiency of around 16 to 17%.

The specifications and price of solar panels also vary with different brands and types of solar systems selected among on-grid, off-grid, and hybrid.

Specifications and Pricing of a 4 KW Solar Conversion Kit 

Solar conversion kit includes a solar charge controller that helps to convert your normal inverter to a solar inverter. It also includes solar panels, Solar Management Unit (SMU), and other solar accessories.  

Here are the general specifications of a 4 KW solar system: 

  • – Capacity: 4 KW
  • – Type of panels: Monocrystalline or Polycrystalline
  • – Technology: MPPT (Maximum Power Point Tracking)
  • – DC Cable & AC Cable: Minimum 50 m in length
  • – Other Accessories: Earthing Kit, Cable Tie, Fasteners, Lighting Arrestor, Crimping Tool, Conduit Trays, MC4 connectors, mounting structures, and solar inverter.

Specifications and Prices of a 4 KW 12 V Solar System and a 4 KW 24 V Solar System 

These systems have batteries. Hence, they will either be off-grid or hybrid.

Now, let us take a glimpse at the specifications:

  • – Solar power plant type: off-grid or hybrid
  • – Capacity: 4 KW
  • – Solar panel type: Monocrystalline or Polycrystalline  
  • – Type of inverter: off-grid or hybrid 
  • – DC cable: Min. length – 50 m 
  • – Mounting structure: Galvanized according to the IS applicable

4 KW Solar Panel Price in India with Subsidy

Now, let us discuss the subsidy available for a 4 KW solar system. You should note that the subsidy is offered against the L1 rates of the solar panels. The 4 KW solar panel price we discussed earlier and the L1 rates are two completely different concepts. 

L1 rates, also known as discovered rates, are different for each state of India. The government invites solar vendors to bid on the solar tender to earn allocation rights, and the vendor whose bid is lowest gets the max allocation rights. Notably, the lowest bid becomes the L1 rate.

For solar systems between the 3 KW to 10 KW range, the homeowners get a 40% subsidy/KW for the first 3 kilowatts. And for the remaining (up to 10 KW), they get a 20% subsidy on the L1 rate per KW. 

Note that the subsidies are only available for on-grid domestic installations (homeowners and housing societies).

The table below represents the state-wise L1 prices and subsidies available for a 4KW solar system in India.

State L1 price for 4KW solar system in IndiaSubsidy on 4KW system against L1 prices
Madhya Pradesh (Bhopal)₹38,800₹54,320

What are the Benefits of Installing a 4KW Solar System?

Now, after discussing the subsidies available, we should discuss how a 4KW solar panel system offers some crucial benefits to us!

  • – Solar power is a clean, renewable and inexhaustible energy source that does not lead to the emission of harmful greenhouse gas. 
  • – The returns given by the 4KW solar system against the 4 KW solar panel price weigh more than the investment cost in the long run. 
  • – Also, this solar system calls for minimal maintenance requirements.
  • – Though solar panels are most efficient in direct sunlight, they will still work on a cloudy day when the light is partially blocked.

Who Should Buy And How to Buy a 4KW Solar Panel System?

A 4KW solar panel system is the most popular size of a solar system that people opt for household installations on rooftops. 

It can generate around 480 units per month on average. Hence, a 4KW solar system will be able to produce sufficient power to meet the electricity requirements of a home with a family of four or six people. 

A 4KW solar energy system is mostly utilised in homes where the average monthly power consumption is around 450-480 units of electricity. People who want to slash their utility bills should buy a 4KW solar panel system.

Appliances That Can Work on a 4KW Solar Panel

Now that you know everything about the types, mechanisms, prices, iessubsidies, and benefits of a 4 KW solar system, it’s time you get an idea about the appliances that can run on this system. 

A 4 KW solar system generates around 16 units of electricity each day under ideal conditions. It is capacious to power bungalows, villas, and two-story or three-story homes. 

Remarkably, a 4KW solar system can be used to run appliances like fans, lights, microwaves, dishwashers, washing machines, coolers, geysers, and air conditioners. Thus, you can run all the essential appliances or devices of a household on a 4KW solar system. 


When considering the power requirements of a medium-sized home, a 4KW solar panel system is a good choice. The 4 KW solar panel price can differ as per the quality, brand, location, and availability of the system you choose to install. 

There has never been a better time to go solar and enjoy the advantages of solar power. The government is also offering subsidies to help you financially. 


Q1. How much electric power does a 4KW solar panel system generate?

A 4 KW solar panel system produces around 16 KW of electricity every day under standard conditions. It implies the monthly output will be nearly 480 units.

Q2. Is a government subsidy available to support the investment cost for a 4 KW solar panel price?

Yes, government subsidy schemes are available as financial support to reduce the cost of investment. 

Q3. What is a 4 KW solar panel price range in India?

The price of different 4KW solar panels varies based on factors like the brand, model, type of solar panel, capacity, etc. In India, the 4 KW solar panel price ranges from Rs 1,80,000 to Rs. 2,80,000. Keep in mind that this 4 KW solar panel price range does not include the subsidy amount.