August 31, 2026 ·

1kW vs 2kW vs 3kW Solar System: Subsidy, Cost, Savings Comparison 2026

Understanding the difference between 1kW, 2kW, and 3kW solar systems is crucial for making the right decision. This guide explains the PM Surya Ghar subsidy for each size and helps you choose the best system for your home.

1 kW Solar System

A 1kW solar panel system generates approximately 100 units (kWh) of electricity per month.

  • PM Surya Ghar Subsidy: Rs 30,000
  • System Cost: Rs 60,000 – Rs 75,000
  • Net Cost After Subsidy: Rs 30,000 – Rs 45,000
  • Monthly Savings: Rs 600 – Rs 900
  • Payback Period: 4-5 years
  • Best For: Small households with monthly bill below Rs 800

2 kW Solar System

A 2kW system is the most popular choice for Indian households.

  • PM Surya Ghar Subsidy: Rs 60,000
  • System Cost: Rs 1,20,000 – Rs 1,50,000
  • Net Cost After Subsidy: Rs 60,000 – Rs 90,000
  • Monthly Savings: Rs 1,200 – Rs 1,800
  • Payback Period: 4-5 years
  • Best For: Medium households with monthly bill Rs 800 – Rs 2,000

3 kW Solar System

A 3kW system gets the maximum PM Surya Ghar subsidy.

  • PM Surya Ghar Subsidy: Rs 78,000 (maximum)
  • System Cost: Rs 1,80,000 – Rs 2,10,000
  • Net Cost After Subsidy: Rs 1,02,000 – Rs 1,32,000
  • Monthly Savings: Rs 1,800 – Rs 2,500
  • Payback Period: 4-5 years
  • Best For: Large households with monthly bill above Rs 2,000

Which System Should You Choose?

A simple rule of thumb: Your solar system should generate roughly the same units as your monthly consumption. If your bill shows 200 units/month, a 2kW system is ideal.

Use our Solar Subsidy Calculator to calculate the exact subsidy and net cost for your state.

Calculate Your Solar Subsidy

Use our free calculator to find your exact PM Surya Ghar subsidy amount.

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