4kW Solar Panel Price in India
4kW solar panel price in India ranges from ₹2.4 lakh to ₹3.2 lakh before subsidy for a complete installed system, dropping to approximately ₹1.62 lakh to ₹2.42 lakh after the maximum PM Surya Ghar subsidy of ₹78,000. A 4kW system generates roughly 4,800 to 6,000 units of electricity annually, enough to comfortably cover most 3-4 BHK households with moderate to high consumption, including running a water pump up to 1.5 HP alongside standard home appliances. This guide breaks down city-wise pricing, exact subsidy math for this specific capacity, and whether 4kW or the more commonly recommended 3kW bracket is the better fit for your household.
4kW solar panel price at a glance
Parameter | Details |
Price before subsidy | ₹2.4 lakh to ₹3.2 lakh |
Price after subsidy | ₹1.62 lakh to ₹2.42 lakh |
Maximum applicable subsidy | ₹78,000 (capped, same as 3kW+ systems) |
Annual generation | 4,800 to 6,000 units |
Suitable for | 3-4 BHK homes, moderate-to-high consumption, water pump up to 1.5 HP |
Panel-only module cost | Approximately ₹1.1 to ₹1.5 lakh (before inverter, mounting, labour) |
Payback period | 4 to 6 years |
Why 4kW is an important pricing bracket
This is a detail many pricing guides skip: the PM Surya Ghar subsidy caps at ₹78,000 for any system 3kW and above. This means a 4kW system receives the exact same maximum subsidy as a 3kW system, ₹78,000, not a proportionally higher amount. In practical terms, this makes the additional 1kW of capacity in a 4kW system effectively "full price" compared to the subsidised first 3kW.
System | Before subsidy | Subsidy | After subsidy | Effective subsidy rate |
3 kW | ₹1,65,000 to ₹2,55,000 | ₹78,000 | ₹87,000 to ₹1,77,000 | 30 to 47% of pre-subsidy cost |
4 kW | ₹2,40,000 to ₹3,20,000 | ₹78,000 (same cap) | ₹1,62,000 to ₹2,42,000 | 24 to 32% of pre-subsidy cost |
This is exactly why many installers and government guidance recommend 3kW as the most subsidy-efficient residential bracket, unless your actual consumption genuinely requires the extra capacity that 4kW provides.
4kW solar system price: city-wise comparison
City | Approximate price before subsidy | Approximate price after subsidy |
Ahmedabad | ₹2.53 lakh | ₹1.75 lakh |
Bengaluru | ₹2.93 lakh | ₹2.15 lakh |
Delhi NCR | ₹2.4 to ₹2.9 lakh | ₹1.62 to ₹2.12 lakh |
Mumbai/Pune | ₹2.5 to ₹3.0 lakh | ₹1.72 to ₹2.22 lakh |
Hyderabad/Chennai | ₹2.45 to ₹2.85 lakh | ₹1.67 to ₹2.07 lakh |
Note: Prices are indicative and vary based on the specific installer, product variant, DISCOM charges, and roof-specific requirements. Always request a location-specific quote for exact pricing.
4kW solar panel price component breakdown
Component | Approximate cost | Share of total |
Solar panels/modules | ₹1,10,000 to ₹1,50,000 | 45 to 50% |
Inverter (string or hybrid) | ₹35,000 to ₹65,000 | 15 to 20% |
Mounting structure | ₹20,000 to ₹35,000 | 8 to 12% |
Wiring, DC/AC protection, earthing | ₹15,000 to ₹25,000 | 6 to 10% |
Installation labour and commissioning | ₹25,000 to ₹40,000 | 10 to 15% |
Should you choose 4kW or 3kW?
Factor | Choose 3kW if | Choose 4kW if |
Monthly consumption | 300 to 450 units | 450 to 600 units |
Subsidy efficiency | You want maximum subsidy-to-cost ratio | You need the extra capacity regardless of reduced subsidy efficiency |
Household size | 2-3 BHK, standard appliances | 3-4 BHK, higher appliance load, possible water pump |
Future plans | No major consumption increase expected | Planning to add AC, EV charging, or expanding household |
Roof space | Limited roof area | Sufficient roof area for the extra panel count |
For a full walkthrough of matching system size to your specific monthly consumption across all capacity brackets, see our companion guide on solar panels for home cost.
What a 4kW system can realistically power
Appliance | Typical load | Can 4kW support it? |
LED lights (10-15 bulbs) | 100 to 200W | Yes, easily |
Ceiling fans (4-5 units) | 300 to 400W | Yes |
Refrigerator | 150 to 250W | Yes |
LED TV | 100 to 150W | Yes |
Water pump (up to 1.5 HP) | 1,100 to 1,500W | Yes, during daylight hours |
1.5 ton AC (single unit) | 1,500 to 1,800W | Partially, depends on simultaneous other loads and sun availability |
FAQs
What is the 4kW solar panel price in India?
4kW solar panel price in India ranges from ₹2.4 lakh to ₹3.2 lakh before subsidy for a complete installed system. After the maximum PM Surya Ghar subsidy of ₹78,000, the net cost drops to approximately ₹1.62 lakh to ₹2.42 lakh.
Does a 4kW system get more subsidy than a 3kW system?
No. The PM Surya Ghar subsidy caps at ₹78,000 for any system 3kW and above, meaning a 4kW system receives the same maximum subsidy amount as a 3kW system, not a proportionally higher subsidy for the extra capacity.
How much electricity does a 4kW solar system generate?
A 4kW system generates approximately 4,800 to 6,000 units (kWh) annually, depending on your location's sun-hours, panel efficiency, and shading conditions. This typically covers the electricity needs of a household consuming 400-500 units monthly.
Is 4kW or 3kW better for my home?
3kW is more subsidy-efficient (higher subsidy-to-cost ratio) and suits households consuming 300-450 units monthly. 4kW makes sense if your consumption is genuinely higher (450-600 units monthly) or you're running a water pump or planning to add an AC. Compare your actual consumption using our solar panels for home cost guide.
Can a 4kW solar system run a water pump?
Yes, a 4kW system can support a water pump up to 1.5 HP, along with standard home appliances (lights, fans, fridge, TV) during daylight hours when solar generation is active.
What is the payback period for a 4kW solar system?
Typically 4 to 6 years, depending on your electricity tariff and how much of the generated power you consume directly versus export to the grid. After payback, the system continues generating largely free electricity for the remainder of its 25-year warranty period.
Why do 4kW solar panel prices vary by city?
Prices vary due to differing DISCOM charges, local installer competition and labour costs, and regional logistics for equipment delivery. Metro cities with more installer competition sometimes see more competitive pricing despite higher base labour costs.
What panel technology is best for a 4kW system?
Mono PERC panels (₹22-28 per watt) are the most common and cost-effective choice for 4kW residential systems. TOPCon panels (₹28-36 per watt) offer higher efficiency and are worth considering if roof space is limited and you want to maximise generation from the available area.
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