A 3kW solar system is a robust and reliable choice for residential homes, capable of generating 3000W/h of electricity. It’s an excellent fit for homeowners seeking a comprehensive solar solution that includes a solar battery and inverter. While this system can efficiently run most household appliances, it’s essential to note that it’s not designed to power a 2-ton air conditioner. In this blog, we’ll delve into the details of a 3kW solar system, covering its usage, components, pricing, and more.

Uses of a 3kW Solar System

A 3kW solar system is ideal for households with appliances such as water pumps, refrigerators, coolers, TVs, washing machines, laptops, lights, fans, and iron presses. Here’s how this system matches up with typical household energy needs:

  • Water Pump (1.5HP Submersible): 1500W
  • Refrigerator: 200-400W
  • Cooler: 200W
  • TV: 50W
  • Washing Machine: 800W
  • Laptop: 40W
  • Lights: 10-20W
  • Fans: 75W
  • Iron Press: 700W

These appliances typically fall within the range that a 3kW system can handle efficiently, especially if you manage the load wisely by not exceeding 80% of the inverter’s capacity.

Power Backup

The 3kW Off-Grid Solar System comes with an inverter capacity of 2900W and a battery capacity of 5800W. This setup can power your home during outages, with backup times varying depending on the load:

  • 300W Load (Lights, Fans, TV, Laptop, Camera): 19 hours
  • 1000W Load (Lights, Fans, TV, Laptop, Camera, Surface Water Pump): 6 hours
  • 2000W Load (Lights, Fans, TV, Laptop, Camera, Submersible Water Pump): 3 hours

For optimal performance and longevity, it’s recommended to operate the system at no more than 50% of its maximum load during regular use.

Components of a 3kW Solar System

A typical 3kW solar system includes the following components:

ComponentCapacity
Solar PV Module3000W (540W) * 6
Solar Inverter (PCU)3.5KVA (NXT+)
Solar Battery @C10150Ah * 4 (5 yrs. Warranty)
Panel Stand6 Panel Stand
DCDB4-in-1-out DCDB
DC Wire4 sq.mm. – 30 mtr, 10 sq.mm. – 10 mtr.
AC Wire4 sq.mm – 20 mtr.
MC4 ConnectorIP68 – 4 pcs.

This system is capable of generating up to 15 units per day, which can efficiently power your essential household appliances.

Pricing of a 3kW Solar System in India

The price for a 3kW solar system in India ranges between ₹1,80,000 and ₹2,85,000, depending on the components and installation services included. This price includes the cost of the solar panels, inverter, batteries, transportation, installation, and a one-year service warranty.

Power Generation and Savings

A 3kW solar system typically generates 12-15 units per day, translating to 4,320-5,400 units annually. This generation can save you approximately ₹30,240-₹37,800 per year, depending on your location and energy consumption patterns.

Here’s a detailed month-wise generation report for a 3kW solar system:

MonthPer kW GenerationTotal Generation (kWh)
January4.43308
February5.43335
March6.41416
April6.82424
May6.52409
June5.77355
July4.94320
August5.36356
September5.74369
October5.58375
November4.81318
December4.36308

Subsidy for 3kW On-Grid Solar Systems

If you install an on-grid solar system, you may be eligible for a government subsidy. Here are the key points:

  1. Only domestic consumers are eligible.
  2. The system must be an on-grid solar system.
  3. The sanctioned load should not exceed 10kW.
  4. The central government offers a subsidy of ₹ 78000/- for a 3kW system,

Solar Loan / EMI Options

Solar loans and EMI options are available for those who prefer to spread the cost of the solar system over time. The typical monthly installment starts from ₹3500/-*, with a 20% down payment required.

How to Buy a 3kW Solar System

You can purchase a 3kW solar system with a battery bank from authorized dealers or online platforms. Make sure to choose a reliable brand and verify the warranty and installation services included in your purchase.

Conclusion

A 3kW solar system offers a significant return on investment, with potential monthly savings of up to ₹4,500 on your electricity bill. With proper maintenance, you can recover the initial investment within 3.5 years, making it an excellent choice for homeowners looking to reduce their energy costs and carbon footprint.


Frequently Asked Questions (FAQs)

How much does it cost for a 3kW Solar System?
The cost of a 3kW solar system with a battery is around ₹3,00,000, including panels, inverter, batteries, and installation.

How many solar panels do I need for 3kW?
Depending on the panel wattage, you will need 6 to 9 solar panels to generate 3kW.

How much electricity does a 3kW Solar system generate?
A 3kW solar system generates 12-15 units per day, saving you ₹66 to ₹90 daily.

Is 3kW enough for a house?
Yes, 3kW is sufficient for an average home, but it may not be adequate for high-consumption appliances like a 2-ton air conditioner.

What does 3kW solar system mean?
3kW refers to a system capable of producing 3000 watts of electricity per hour under ideal conditions.

How many ACs can run on 3kW?
You can run one inverter AC along with other basic home appliances, but it’s essential to monitor the total power consumption.

What is the area required for a 3kW Solar Panel?
A 3kW system typically requires around 146 to 160 sq. ft. of shadow-free installation space.

How many batteries are required for a 3kW solar system?
You need 4 batteries (150Ah each) for a 3kW system, or a single 5kWh lithium battery as an alternative.


Investing in a 3kW solar system is a smart and sustainable choice for homeowners looking to reduce energy costs and environmental impact. With the right components and proper installation, you can enjoy reliable, clean energy for years to come.