India is moving towards rooftop solar at an unprecedented scale. Under the PM Surya Ghar: Muft Bijli Yojana, nearly 39.7 lakh rooftop solar systems had been installed, benefiting more than 48 lakh households, as of 22 July 2026.
For homeowners, the appeal is simple: rooftop solar can help generate clean electricity at home and reduce dependence on grid power. But choosing a system requires looking beyond the upfront solar panel cost. The quality of the modules, system design and installation all influence the value the system delivers over time.
Understanding the Cost of Home Solar
The cost of a home solar system comes down to three key factors: system size, component quality and installation requirements. Roof space and condition determine how the system is designed and, consequently, the overall investment.
Government support has made rooftop solar more accessible to eligible residential consumers. Under PM Surya Ghar, Central Financial Assistance is currently ₹30,000 per kW for the first 2 kW and ₹18,000 for the additional 1 kW, with the central subsidy capped at ₹78,000 for 3kW or larger systems.
The government has also introduced collateral-free loans through nationalised banks at concessional rates for eligible residential rooftop solar installations.
But the upfront price should never be the only measure of value. A solar panel price needs to be evaluated as part of the complete system, including the equipment, installation and long-term performance it delivers.
The official Rooftop Solar Calculator can provide an indicative estimate based on factors such as household electricity consumption, system size, location and electricity tariffs.
Choosing Quality Solar Panels
Solar panels are designed to generate electricity for decades, making solar panel quality an important part of the decision.
When choosing solar panels for home, look beyond wattage. Efficiency, cell technology, degradation, warranty and manufacturer experience are key indicators of long-term performance.
One of the important developments in solar technology is the growing adoption of N-type solar technology, which offers high efficiency and improved resistance to degradation.
Vikram Solar’s Hypersol range uses N-type technology. Its current 610–640 W module offers up to 23.69% efficiency, along with a 12-year product warranty and 30-year performance warranty.
For a homeowner, the takeaway is clear: the highest wattage or lowest price does not necessarily deliver the best long-term value. The module needs to match the available roof space while delivering dependable performance over its operating life.
Why Solar Panel Warranty Matters
Solar modules naturally lose some generating capacity over time. This is known as module degradation.
A review of nearly 2,000 degradation measurements by the U.S. National Renewable Energy Laboratory found a median degradation rate of around 0.5% per year, although actual rates vary with technology, environment and system conditions. For N-type modules, the typical annual degradation rate is around 0.4%. That makes the solar panel warranty an important part of any purchase decision.
A product warranty covers specified product-related issues, while a performance warranty provides assurance around the module’s expected output over time.
Vikram Solar’s Hypersol range carries a 30-year performance warranty, providing long-term assurance on module performance.
Installation Matters Just as Much
Even the best solar panels need a well-designed and professionally executed installation to perform as intended.
A rooftop assessment should account for available space, sunlight, shading, roof condition and electrical requirements. The panels, inverter, mounting structure and electrical components then need to work together as one system.
The MNRE Grid-Connected Rooftop Solar Programme provides resources covering rooftop assessment, system design, safety and grid connection.
For homeowners, this means looking at the complete solar installation, rather than choosing a system based only on the solar panel price.
A well-designed system makes effective use of the available roof while providing the foundation for safe, reliable energy generation.
Making the Switch to Home Solar
The rapid growth of rooftop solar and programmes such as PM Surya Ghar have made residential solar more accessible across India. With more than 48 lakh households benefiting under the scheme as of July 2026, the transition is already happening at scale.
But choosing solar panels for home is a decision that should go beyond the upfront price. The complete picture includes system cost, module quality, efficiency, expected performance, installation and long-term warranty.
The objective is straightforward: a well-designed solar system that generates clean electricity reliably and delivers value over the years.
Frequently Asked Questions
How much does a home solar system cost?
The cost varies based on system capacity, modules, inverter, installation and other components. Eligible consumers can receive up to ₹78,000 in central subsidy under PM Surya Ghar.
How much is the subsidy for home solar panels?
The current Central Financial Assistance is ₹30,000 per kW for the first 2 kW and ₹18,000 for the additional 1 kW, with the central subsidy capped at ₹78,000.
How long do solar panels last?
Solar panels are designed for long-term operation, with many modern modules offering 25–30-year performance warranties. Actual performance depends on the module, installation and environmental conditions.
Are N-type solar panels suitable for homes?
Yes, N-type solar technology offers high efficiency and lower degradation, making it well suited to residential rooftop applications.
What should I consider when buying solar panels?
Look at efficiency, technology, warranty, manufacturer experience and installation quality, rather than comparing panel prices alone.
