What is the price of a 4kW solar system in India in 2026?

A 4kW solar system costs approximately ₹2.20–₹2.60 lakh before subsidy. The PM Surya Ghar subsidy is capped at ₹78,000 for systems 3kW and above — so a 4kW system receives the same ₹78,000 as a 3kW system. Net cost after subsidy: approximately ₹1.42–₹1.82 lakh.

How many solar panels are needed for a 4kW system?

A 4kW solar system typically requires 10–12 solar panels of 400W–550W capacity.

How many units does a 4kW solar system generate per day?

A 4kW system generates approximately 16–18 units (kWh) per day under Indian sunlight conditions, producing 480–540 units per month.

What is the payback period for a 4kW solar system?

The payback period for a 4kW solar system in India is typically 4–5 years, depending on local electricity tariff and sunlight hours.

Am I eligible for PM Surya Ghar subsidy on a 4kW system?

Yes. PM Surya Ghar Muft Bijli Yojana provides ₹78,000 subsidy for systems 3kW and above (including 4kW, 5kW, up to 10kW residential). The subsidy is calculated as ₹30,000/kW for the first 2kW and ₹18,000 for the third kW — capped at ₹78,000. No additional subsidy is paid beyond 3kW capacity.

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4kW Solar Panel Price & Subsidy

Everything you need to know about setting up a 4kW solar system.

Interactive 4kW Calculator

Consumer Category

Solar Technology

System Capacity (kW)

Total Cost (Approx): ₹210,000

Govt. Subsidy: ₹78,000

Your Investment: ₹132,000*

Estimated EMI (5yr): ₹0

*Prices may vary based on component quality and installation state.

Daily Generation
16-20
Units / Day (Avg)

Monthly Savings

₹4,320

@ ₹8/unit bill

⚡ What this runs:

Multiple ACs, Geysers, Heavy appliances like Induction Cooktops and Pumps. Ideal for large families.

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