As solar adoption continues to grow across India, homeowners are increasingly asking one
important question:
“Which solar panel size is best for my home?”
At Switch2Solar, we help customers choose the right solar solution based on electricity usage, roof space, subsidy eligibility, and long-term return on investment.
In this guide, we explain the latest solar panel sizes available in 2026, the difference between DCR and Non-DCR panels, and which option makes the most financial sense for Indian homes.
• 600Wp DCR Solar Panels
• 640Wp Non-DCR Solar Panels
are becoming the preferred choice for residential and commercial rooftop projects.
At Switch2Solar, we currently supply:
600Wp DCR Solar Panels
Ideal for residential systems eligible for government subsidy.
640Wp Non-DCR Solar Panels
Best suited for larger systems where maximizing savings and reducing project cost is the priority.
• Supports “Make in India”
• Ideal for Residential Rooftop Subsidy Projects
Best Suitable For
• Homes planning to install systems up to 5.5kW
• Customers looking to maximize subsidy benefits
• Higher wattage availability
• Better financial return for high-capacity projects
Best Suitable For
• Residential projects above 5.5kW
• Commercial and larger rooftop installations
“Which solar panel size is best for my home?”
At Switch2Solar, we help customers choose the right solar solution based on electricity usage, roof space, subsidy eligibility, and long-term return on investment.
In this guide, we explain the latest solar panel sizes available in 2026, the difference between DCR and Non-DCR panels, and which option makes the most financial sense for Indian homes.
Understanding Solar Panel Size in 2026
Modern solar panels are now more powerful and efficient than ever before. Earlier, residential projects commonly used 330Wp or 450Wp panels. Today, high-efficiency panels such as:• 600Wp DCR Solar Panels
• 640Wp Non-DCR Solar Panels
are becoming the preferred choice for residential and commercial rooftop projects.
At Switch2Solar, we currently supply:
600Wp DCR Solar Panels
Ideal for residential systems eligible for government subsidy.
640Wp Non-DCR Solar Panels
Best suited for larger systems where maximizing savings and reducing project cost is the priority.
What is DCR and Non-DCR Solar Panel?
DCR Solar Panels
DCR stands for Domestic Content Requirement. These panels are manufactured using locally produced solar appliances and modules as per Indian government guidelines.Benefits of DCR Panels
• Eligible for Government Subsidy• Supports “Make in India”
• Ideal for Residential Rooftop Subsidy Projects
Best Suitable For
• Homes planning to install systems up to 5.5kW
• Customers looking to maximize subsidy benefits
Non-DCR Solar Panels
Non-DCR panels may use imported solar cells and are generally more cost-effective for larger capacity systems.Benefits of Non-DCR Panels
• Lower overall project cost for larger systems• Higher wattage availability
• Better financial return for high-capacity projects
Best Suitable For
• Residential projects above 5.5kW
• Commercial and larger rooftop installations
Which Solar Panel is Better for Your Home?
Projects Below 5.5kW – Choose DCR Panels
For systems below 5.5kW, Switch2Solar recommends DCR solar panels because homeowners can significantly reduce the effective project cost through government subsidy benefits.Why?
The current residential solar subsidy is capped at approximately:₹78,000
This subsidy helps offset the slightly higher price of DCR panels, making them the smarter investment for smaller residential projects.Recommended For
• 3kW Solar System
• 4kW Solar System
• 5kW Solar System
Projects Above 5.5kW – Choose Non-DCR Panels
For systems above 5.5kW, we generally recommend Non-DCR panels.Why?
Although DCR panels qualify for subsidy, the subsidy amount remains capped. Beyond this capacity, the additional cost of DCR panels often becomes higher than the subsidy advantage.This means:
• Non-DCR projects become more economical
• Lower cost per watt
• Better ROI for larger systems
• 1Rs excess per unit excess generation
Recommended For
• 6kW Solar System
• 8kW Solar System
• 10kW Solar System and above
Solar Panel Dimensions
Both our:• 600Wp DCR Panels
• 640Wp Non-DCR Panels
typically come in a standard large-format size of:
8 Feet × 4 Feet
Important Considerations
Before installation, homeowners should evaluate:• Roof shadow-free area
• Structural strength
• Panel layout planning
• Future maintenance access
Our Switch2Solar team provides complete site assessment and design support before installation.
How Much Roof Space is Required?
Approximate rooftop requirement:System Size Approx Roof Area
3kW 180 – 220 sq.ft
5kW 300 – 400 sq.ft
6kW 400 – 500 sq.ft
10kW 700 – 900 sq.ft
Actual requirements may vary depending on roof design and mounting structure.
Why Homeowners Choose Switch2Solar
At Switch2Solar, we provide complete end-to-end solar solutions including:• Site Survey & Design
• Subsidy Assistance
• High-Efficiency Solar Panels
• Installation & Commissioning
• Net Metering Support
• After-Sales Service
We help customers choose the right combination of:
• DCR vs Non-DCR
• System Capacity
• Inverter Selection
• Battery Backup Options
to maximize savings and long-term performance.
Final Recommendation from Switch2Solar
Choose DCR Panels If:
• Your system size is below 5.5kW• You want to maximize subsidy benefits
• You are installing a residential rooftop system
Choose Non-DCR Panels If:
• Your system size is above 5.5kW• You want better project economics
• You are looking for faster ROI
Power Your Home Smarter with Switch2Solar
Looking to install a solar system for your home or business?As a leading Residential solar panels installation company, Switch2Solar offers premium solar solutions with expert consultation, subsidy guidance, and professional installation support across every stage of your solar journey.