Advantages and Challenges of Wind Energy
For more than 1,300 years, windmills have been used to capture wind's force and convert it into...
February 21, 2025
Solar is an efficient way to generate free electricity for your home without putting a strain on your wallet. Both households and businesses are opting for home solar systems in large numbers. Solar is likely to replace conventional energy sources in the near future.
A 3kW solar panel system can generate enough power to meet the energy needs of a small house or business. Wonder how much electricity a 3kW solar system produces? On average, this system size has between 8 and 11 solar panels.
The power units generated by 3kW solar panels per day in sunny weather conditions is 12kWh. Therefore, you are likely to receive a monthly supply of 360 kWh of electricity on average.
Solar photovoltaic technology is utilized in panels to generate electricity. Regardless of your 3kW solar panel size and type or the nature of your solar energy system, the power is generated through the same photovoltaic effect.
When the photons in the sunlight come in contact with a PV module, the solar cells strung together absorb these photons. This creates a flow of energy or direct current, and it requires a solar inverter to transform it into usable alternating current (AC) energy. This converted energy then powers your home or office.
Also Read: 1kW Solar System Price in India with Subsidy
The prices for a 3kW solar system for homes in India vary depending on the type of panels. Other factors include the quality of the solar components making up your 3kW solar system and the mounting structure used to set up your solar PV array. On average, your upfront solar investment can range between Rs. 1,60,000 to 3,00,000. Here is an estimate of what 3000-watt solar panel system prices in India may look like.
| Model | 3kW Solar Price |
| 3kW On-grid solar system | Rs. 2,13,300 Onwards* |
| 3kW Off-grid solar system | Rs. 2,40,000 |
| 3kW Hybrid solar system | Rs. 4,50,000 |
For rooftop solar plants installed for residential use all over India, the following Central Financial Assistance (CFA)/ Central Government Subsidy are available.
| Rooftop Solar System Capacity | Applicable Subsidy (₹) |
| 1 kW | 30,000/- |
| 2 kW | 60,000/ |
| 3 kW and Above | 78,000* |
| Note: *The subsidy amount is fixed for rooftop solar systems of 3 kW and above capacity. | |
The CFA calculations in the table below give an estimate of what to expect when it comes to 3kW solar panel price in India with subsidy.
| Model | 3kW Solar Plant Price | Subsidy Applicable | Prices After Subsidy |
| 3kW On-grid solar system | Rs. 2,13,300 Onwards* | Rs. 78,000 | Rs. 1,35,300 Onwards* |
| 3kW Off-grid solar system | Rs. 2,40,000 | Not applicable | No change |
| 3kW Hybrid solar system | Rs. 4,50,000 | Rs. 78,000 | Rs. 3,72,000 |
The subsidies are available primarily for installations in neighbourhoods and houses. Anyone who wishes to install solar panels in their home can visit the National Portal for Rooftop Solar website. You can submit your subsidy application online and track the process from the comfort of your home.
| Key components | Solar panels (at least 75% performance efficiency), solar mounting structure, solar inverter, solar batteries (optional), the balance of system (cables, fuses, MCBs, and Distribution boxes)*All components should be in compliance with MNRE guidelines and ALMM standards to be eligible under the subsidy scheme. |
| Energy output | How many units of power is generated by a 3kW solar panel system?– 12 units of electricity/day– 360 units of electricity/month – 4,320 units of electricity/year |
| Appliances powered | All home appliances, such as a TV, washing machine, fan, fridge, and lighting system |
| Area required for 3kW solar panel system | A 300 sq ft open, shade-free space |
It’s important to choose the right type of solar system to unlock the maximum potential of solar PV technology for your home or business. Your selection also decides the final 3kW solar system cost for you. There are three main types of home solar systems:
An on-grid framework is one where your 3kW solar system is grid-interactive and gets billed as per the net metering regulations. The net meter integrated into your system is designed to record the inflow and outflow of electricity between your 3kW solar panels and the local grid.
For every solar energy unit fed to the grid, you receive solar credits. On the other hand, grid power withdrawals levy a charge. Households are required to settle the difference with their local DISCOM company at the end of every month.
If you are looking for the most cost-effective solar system for your home or business, you would want to know the 3kW on-grid solar system price in India. On average, on-grid systems can cost between 2,13,300 to 4,50,000 depending on your choice of components. Also, this type of system is eligible under the national solar subsidy program that aims to reduce the 3kW on-grid solar system price in India with subsidy for residential customers.
An off-grid framework operates effectively independent of the local grid. The battery bank is an important component in a stand-alone off-grid solar system that stores surplus solar energy generated by your panels. The battery supplies power when your solar panels are dormant during the night hours or don’t receive enough sunlight due to inclement weather.
The price of a 3kW off-grid solar system in India is estimated to be around 2,40,000, inclusive of installation.
A hybrid solar system combines the features and advantages of on-grid and off-grid systems. If you want to ensure an uninterrupted supply of electricity in your home or office, a hybrid framework provides you with a robust battery backup and the flexibility of the grid connection.
By staying connected to the grid, you take advantage of the net metering mechanism and send and withdraw power as needed. Also, your solar batteries store surplus solar electricity generated by your solar panels. This unused electricity is supplied when the grid is down or during night hours.
If you are wondering about the price of a 3kW hybrid solar system in India, expect it to be somewhat around 4,50,000 including installation fees. The cost of this type of system exceeds the normal cost as it uses more components than others.
Also Read: 2kW Solar System Price in India with Subsidy
Having figured out your 3kW solar panel price in India, it’s important to consider the cost of installation. Correct installation of your solar panels is the key to ensuring the efficient working of the panels and maximum energy output.
So the total 3kW solar plant price involves the cost of the module mounting structure. Also, professional expertise is required to determine the correct orientation, size, shading, and average sun hours for setting up the solar panel array.
If you are considering solar for self-consumption, the subsidy can reduce the price of your 3-kilowatt solar panel system in India by up to Rs. 54,000 (Rs. 18,000 per kW). The CFA calculation depends on the type of your solar system and the capacity you choose for your home.
A 3kW solar system requires about 7-10 solar panels. A single panel occupies an area of 1m x 1.7m, so a 3kW solar panel size might take up between 12 and 17 m2 of roof area. The size also depends on the wattage of the panels.
A 3kW solar system can power a television, refrigerator, lighting system, fan, washing machine, and dishwasher.
Considering that you need solar to meet your basic electricity needs, you might not have enough left to fulfil your air conditioning needs. In several cases, it’s possible to run a small 1-ton AC for a few hours.
To install a 3kW rooftop solar system, you need a 300 square feet area free of any shade.
A 3000-watt solar panel price in India is somewhere around Rs. 3,00,000/- that can generate an average of 360 kWh of electricity per month.
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