Installing rooftop solar in India—especially in Kerala—has become significantly more affordable with government subsidy programs introduced by the Ministry of New and Renewable Energy (MNRE). These initiatives are designed to reduce the upfront cost of solar installation and accelerate the adoption of renewable energy among homeowners.

In Kerala, residents can benefit from these subsidies to make the transition to clean, sustainable power both practical and cost-effective. Whether you’re looking to reduce electricity bills or gain energy independence, rooftop solar is now more accessible than ever.

In this complete guide, we cover everything you need to know, including:

  • Eligibility criteria for availing subsidies
  • Detailed subsidy structure and benefits
  • Required documents for application
  • Step-by-step process to apply in Kerala

This guide will help you understand how to take full advantage of government support and make a smart investment in solar energy.

Solar Subsidy Structure (2026 – Residential)

The subsidy amount depends on system capacity:

  • Up to 3kW – Up to 40% subsidy

  • 3kW to 10kW – 20% subsidy on additional capacity

  • Above 10kW – No subsidy for residential systems


The subsidy is mainly available for residential users and is calculated based on system capacity:

  • Up to 2 kW : 40,000

  • 3kWp and above up to 10 kW : 78,000


Eligibility Criteria

To avail subsidy in Kerala, you must:

  • Be a residential property owner

  • Install a grid-connected/hybrid rooftop solar system

  • Use approved vendors registered on the national solar portal

  • Have a valid electricity connection in your name

  • Comply with local DISCOM regulations


Documents Required

Prepare the following documents:

  • Aadhaar card

  • PAN card

  • Electricity bill

  • Property ownership proof

  • Bank account details (for subsidy transfer)


Estimated Residential Solar System Cost (Before Subsidy)
  • 3kW Solar System – ₹1.8L to ₹2.2L

  • 5kW Solar System – ₹2.8L to ₹3.5L

  • 10kW Solar System – ₹5.5L to ₹6.5L