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Solar Installation at Home in India: The Only Guide You Need in 2025

The cumulative installed solar capacity of India reached an impressive 64.38 GW at the beginning of 2023. This phenomenal growth is driven by the compelling appeal of solar panel prices. Solar plants are considered the most cost-effective electricity generation source in many major countries. 

Residential customers also benefit from switching to solar energy with proper guidance. Wattsun Energy has to its credit the satisfaction of over 6000 customers all over Kerala. In this blog, we use our expertise to list all the things you need to know about solar installation at home in India in 2025.

Also read: India Surpasses 100 GW of Solar Power Capacity: Why is it Remarkable?

Affordable Solar Installation at Home in India: Costs, Benefits & Process

Solar Installation at Home in India in 2025: Why Should You Go for Solar?

The significant environmental benefits of rooftop solar power include a decrease in greenhouse gas emissions and reduced air pollution. The other environmental benefits of solar power on rooftops include:

• Independence from traditional energy sources and centralized power grids
• Water conservation while generating electricity using rooftop solar PV
• Minimal need to clear land as solar panels could be installed on unused areas and rooftops.
• Renewable alternatives to fossil fuels 
• Increased grid reliability from renewable backup power during outages when rooftop solar is paired with storage. 

Further, solar panel installation also leads to financial benefits, including: 

• Reduced grid dependency
• Low or no monthly bills
• Protection against rising electricity rates:
• Bill credits from net metering 
• Long-term savings with a lifespan of about 25 years
• Financial incentives such as rebates and tax credits 
• Increased home value

Government incentives and subsidies for home solar 2025

Pradhan Mantri Surya Ghar Muft Bijli Yojana provides subsidies for installing rooftop solar panels, with the largest subsidy of ?78,000 for systems up to 3 kW.

The total subsidy is capped at ?78,000. Additionally, state governments may also offer subsidies. 

• How to apply for a subsidy for solar panel installation? 
• Register on the national portal for rooftop solar on pmsuryaghar.gov.in. 
• Choose a vendor. 
• Get a feasibility app.
• Apply for feasibility approval. 
• Install the plant. 

Also read: KSEB Solar Subsidy in 2024: A Comprehensive Guide for You

Affordable Solar Installation at Home in India in 2025: Who Should Opt for Solar? 

• Homeowners with high electricity bills

Homeowners with high electricity bills can significantly benefit from rooftop solar by generating their electricity, reducing their reliance on the grid, and potentially eliminating or compensating for their monthly utility costs with net metering. 

• People Living in Areas With Good Exposure to Sunlight 

Installing solar panels in areas with abundant exposure to sunlight throughout the day leads to improved energy production. This ultimately leads to electricity cost cuts and better returns on investments.

• Those looking for sustainability and long-term savings

Rooftop solar offers sustainability and significant long-term savings with reduced electricity bills, greater energy independence, and a cleaner environment. Some of the long-term savings related to rooftop solar include:

• Reduced Electricity Bills
• Energy Independence
• Increased Property Value
• Low Maintenance Costs
• Financial Incentives

Sustainability benefits of solar installation in the home:

• Reduced Carbon Footprint
• Minimizing Environmental Impact
• Promoting a Sustainable Future
• Clean Air
• Renewable Energy Source

Affordable Solar Installation at Home in India in 2025: Are You a Good Fit for Rooftop Solar? 

To understand whether you are a good fit for rooftop solar, you have to first analyze your electricity consumption and bill. You can conduct this analysis by

• Reviewing your past bills
• Calculating your monthly consumption
• Calculating your daily consumption
• Identifying the times when your usage is at its peak. (This helps determine the best time for you to use solar power.)

As the next step, you should assess your solar potential by:

• Determining the average sunlight hours in your location 
• Considering the tilt and orientation of your roof 
• Researching the efficiency of the panels you choose 

You can calculate the size of your solar installation at home by: 

• Determining your daily energy needs
• Calculating the needed number of panels by dividing daily energy requirements by the average daily output of each panel
• Considering the derate factor (representation of potential losses in the system in percentage)
• Understanding the net metering of your solar system.

Solar Power on Rooftop: Important Factors to Consider Before Solar Installation at Home

• Type of solar panel: 

You can choose among on-grid, off-grid, or hybrid solar panels by assessing your budget, needs, and location. 

On-Grid Systems: These systems use solar panels to generate electricity. They are also connected to the electricity grid. While using the on-grid system, you can send excess power after meeting the requirements of your home or business back to the grid.

Off-Grid Systems: These systems use solar panels, inverters, and batteries to use and store solar energy while being fully independent of the electricity grid. 

Hybrid Systems: These systems allow you to use solar power while also being connected to the grid. The grid also stores the surplus energy generated by the system. 

• Quality and efficiency of solar panels: 

The quality and efficiency of solar panels are crucial to  

• Maximize energy generation
• Lower electricity bills
• Speed up payback periods
• Increase overall savings
• Reduce environmental footprint

• Battery storage options and inverter selection: 

The right inverter and battery storage for your solar installation at home can maximize energy independence, reduce dependence on the grid, and ensure a reliable power supply during outages. 

• Installation costs of solar panels for your home and their maintenance in the long term: 

A successful solar installation at home also includes careful consideration of installation costs and maintenance requirements in the long term. These factors significantly affect the sustainability and overall return on investment of your solar system.

Also read: Rooftop Solar System: All you need to know

Affordable Solar Installation at Home in India in 2025: Wattsun’s Step-by-Step Guide on Going Solar