On-Grid Solar
On-Grid Solar System for Home: Prices, Subsidy, ROI & Working
An on-grid solar system (also known as a grid-tied system) is the most common type of solar setup for urban homes and businesses. It connects directly to the local electricity grid, allowing homeowners to use solar power during the day and draw from the grid at night or during low sunlight.
This guide covers the pricing, government subsidies, return on investment (ROI), and a breakdown of how on-grid systems work.
What is an On-Grid Solar System?
An on-grid solar system works in conjunction with the electricity grid. When your solar panels produce more electricity than your home consumes, the excess is sent to the grid — and you receive a credit (via net metering). At night or during low sunlight, you draw power back from the grid.
Key Components:
Solar Panels
Grid-Tied Inverter (no batteries required)
Net Meter
Mounting Structure & Wiring
Unlike off-grid systems, there are no batteries, which makes the system more affordable and easier to maintain.
On-Grid Solar System Prices in India (2025)
The cost of an on-grid solar system depends mainly on system size and brand quality. Here are general estimates:
System Size | Monthly Savings Potential | Approximate Price (INR) |
|---|---|---|
1 kW | ₹700 – ₹1,200 | ₹65,000 – ₹80,000 |
2 kW | ₹1,400 – ₹2,400 | ₹1,20,000 – ₹1,40,000 |
3 kW | ₹2,000 – ₹3,600 | ₹1,75,000 – ₹2,10,000 |
5 kW | ₹3,500 – ₹6,000 | ₹2,75,000 – ₹3,50,000 |
10 kW | ₹7,000 – ₹12,000 | ₹5,50,000 – ₹6,80,000 |
Note: Prices include panels, inverter, structure, net meter, and standard installation. Battery backup is not included, as it’s not required in an on-grid setup.
Government Subsidy for On-Grid Solar (Residential)
As of 2025, the Indian government is actively promoting rooftop solar through the PM Surya Ghar: Muft Bijli Yojana and MNRE programs.
Subsidy Details (for residential users only):
System Size | Subsidy Amount (Approx.) |
|---|---|
Up to 2 kW | ₹30,000 per kW (approx. 60%) |
2–3 kW | ₹18,000 for 3rd kW |
Above 3 kW | Capped at ₹78,000 (flat) |
Conditions:
Must use MNRE-approved vendors
Only applicable for residential rooftop installations
Apply through national portal for solar subsidy: https://solarrooftop.gov.in/
Return on Investment (ROI)
On-grid solar systems offer high returns due to their lower setup cost and the absence of batteries. With government subsidies, ROI becomes even more attractive.
ROI Highlights:
Payback Period: 4 to 6 years (with subsidy)
System Life: 25+ years for panels, 10–15 years for inverters
Annual Savings: ₹8,000 to ₹1,20,000 (depending on size)
Net Metering: Reduces electricity bills significantly
How an On-Grid Solar System Works
Solar Panels generate electricity during the day.
Inverter converts DC electricity from panels into AC for home use.
Electricity is consumed in real-time. If more power is generated than consumed, the extra is sent to the grid.
During the night or cloudy days, electricity is drawn from the grid.
Net Meter tracks how much power is sent to and received from the grid. Billing is done based on net usage.
Important: The system shuts down during a power outage to prevent grid backfeed, unless hybrid or battery systems are added.
Is an On-Grid Solar System Right for You?
Ideal For:
Homes and businesses with reliable grid electricity
Urban and semi-urban households
Users looking to lower electricity bills without investing in batteries
Not Ideal For:
Remote areas without grid connectivity
Areas with frequent or extended power outages
Conclusion
An on-grid solar system is the most cost-effective and low-maintenance way to adopt solar energy. It lowers your monthly bills, has a relatively short payback period, and contributes to a greener environment. With government subsidies, it’s now more affordable than ever.
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