A 4kW solar power system is apt for meeting the power needs of most households. If you are considering going green, then an estimation of the total installation cost is important to make informed decisions and determine how much money you need. In this blog, we will give you a deep insight into the 4kW solar system setup price, including the off-gird setup as well.
4kW Solar System Cost
Before we move ahead let me inform you that the pricing of different parts of the solar system comprises the overall costs. These prices vary from region to region and here you will get to know about Indian and US rates.
4kW Solar System Price in India
In India, the price of solar panels may vary based on aspects like the model, brand, capacity, and type of solar panel The average 4kW solar system cost ranges from Rs 1,80,000 to Rs. 2,80,000 in India excluding the subsidy amount which varies from state to state.
4kW Solar System Price in the US
The average 4kW solar system cost in the U.S. is around $2.77 per watt which ranges between $10,000 and 15,000, including installation services and shipment. The final total cost of the 4kW system after the 26% federal tax credit discount would be between $7,000 and 12,000.
Average Cost of the Components
Having an understanding of the average cost of the components can help you do a better estimation.
1. Types of 4kW Solar Panels and Average Cost:
- Bifacial Solar Panel Cost: Rs. 1,45,000 approximately
- Mono PERC Half-Cut Solar Panel Cost: around Rs. 130,000.
- Polycrystalline Solar Panel Cost: Rs. 115,000 approximately.
2. Solar Charge Controller Price Range:
- Cost of 12V Solar Charge Controller (10A-40A): It lies between Rs. 1,705 and Rs. 4,100.
- Price of 36V Solar Charge Controller (10A-40A): It ranges from Rs. 4,095 to Rs. 10,250.
- Cost of 24V Solar Charge Controller (10A-40A): It ranges between Rs. 2,460 and Rs. 7,900.
- Price of 48V Solar Charge Controller (10A-60A): It lies between Rs. 6,150 and Rs. 30,050.
For setting up 4kW of solar panels, you would require at least 4 battery capacity inverters. The charge controller will allow you to connect your panels to an inverter with 4 batteries. The whole system will regulate the energy and help to prevent overloading of the battery. Its price is based on various factors, comprising its technology, brand, and power rating.
Also, take a look at our blog – How to Start a Solar Farm in Arkansas
3. Average Solar Battery Cost:
It stores energy coming from solar panels. For a 4kW solar system, our suggestion would be to use four 100Ah batteries that on average cost around Rs. 40,000. In the US, the average price for a solar battery bank is between $4,000 and $14,000.
4. Average Price of Inverter:
For setting up a 4 kW Off-Grid solar system, you will need to choose a solar inverter with 4 batteries to design your solar power system.
A single phase 4 kW on-grid costs around Rs.35,000, while a 4kW hybrid inverter with 96 Volts costs Rs.64,000 approximately. The average price of an inverter in the US is between $3,000 and $13,000, depending on how cutting-edge the inverter is. It works to convert the DC energy coming from the panels into usable AC energy for your home.
5. Other Misc Expenses:
In addition to solar panels, there are some important components and other expenses such as wires for connection, solar panel stands, mounting equipment, protection devices like DCDB and ACDB, and labor costs that add to the overall cost of setting up a solar system. The approximate cost for all this would be around Rs 20,000 to Rs 30,000.
You can enter your zip code to determine the cost in your area in 2023. Now, let’s discuss the 4kW solar system cost with batteries and without batteries considering the cost breakdown of its parts as well.
Also See: 2kW Solar System Price with Battery
4kW Solar System Cost With and Without Batteries
Solar energy systems are of different types that can be opted on the basis of your needs and location. They are as follows:
- Off-Grid Solar System or Solar System with Battery
- On-Grid Solar System or Solar System without Battery
1. 4kW Solar System Cost with Batteries
In off-grid, the system is completely based on the self-production of solar energy. It stores the energy in a battery and does not rely on the power grid.
For a better understanding and estimation of the system installation cost, we are considering a 4kW solar energy system as an example.
Off-Grid Average Cost Estimation
a. With PWM Solar Inverter and Polycrystalline Solar Panel:
| Components | Approximate Price |
| PWM Inverter | Rs. 45,000 |
| 4 kW Solar Panel | Rs. 120,000 |
| 4 ×— 100Ah Solar Battery | Rs. 40,000 |
| Extra | Rs. 20,000 |
| Total | Rs. 2,25,000 |
b. System with MPPT Solar Inverter, 150Ah battery, and Mono Perc Half Cut Technology Solar Panels:
| Components | Approximate Price |
| MPPT Inverter | Rs. 60,000 |
| 4 kW Solar Panel | Rs. 1,40,000 |
| 4 ×— 150Ah Solar Battery | Rs. 60,000 |
| Extra | Rs. 20,000 |
| Total | Rs. 2,80,000 |
Also Read: How Many Panels in a 4kW Solar System are Required?
2. 4kW Solar Average Cost without Batteries
On grid solar system or solar energy system without a battery is connected directly to the power grid. The power that the system yields during the day is utilized to run the home and the extra energy is transported to the grid.
Solar panels and solar inverters are the two major components required for both types. However, as mentioned earlier, the on-grid solar system does not feature a battery as the off-grid system does.
In addition to solar panels, inverters, and other accessories, on grid needs a bi-directional meter for smart tracking of electricity import and supply from the grid. It is essential for an on-grid power system to function. The average cost for a bi-directional meter ranges from Rs.3000 to Rs.6000.
Additionally, check out How to Store Solar Energy Without Batteries
On-Grid System Cost Estimation
a. With PWM Solar Inverter and Polycrystalline Solar Panel:
| Components | Approximate Price |
| 4 kW Solar Panel | Rs. 120,000 |
| Bi-directional meter | Rs. 5,000 |
| PWM Inverter | Rs. 45,000 |
| Extra | Rs. 20,000 |
| Total | Rs. 190,000 |
Cross-Reference: Luminous 4 kW On Grid Solar System Price
b. System with MPPT Solar Inverter, 150Ah battery, and Mono Perc Half Cut Technology Solar Panels:
| Components | Approximate Price |
| 4 kW Solar Panel | Rs. 1,40,000 |
| Bi-directional meter | Rs. 5000 |
| MPPT Inverter | Rs. 60,000 |
| Extra | Rs. 20,000 |
| Total | Rs. 225,000 |
Note: All the above-mentioned cost estimations are based on average pricing. It may vary depending on the brand, location, and capacity.
A 4kW solar panel system is an ideal choice for a medium-sized home. The price can vary depending on the brand, quality, location, and availability of the energy system you prefer to install. The specific requirements of the setup will depend on the individual needs and type of the system. So don’t compromise on cost and consider every component to ensure an efficient, safe, and reliable solar power setup.
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