As a seller and solar consultant at Sun AP Ecopower, one of the most common questions I hear from customers across homes, apartments, and commercial buildings is how an on grid solar system works and whether it is the right investment for them.
With rising electricity bills and increasing awareness about clean energy, more people are exploring solar, but clarity is often missing. In this blog, I will personally walk you through everything you need to know, based on real conversations, installations, and long-term performance we have seen on the ground.
If you’re searching for a clear explanation from someone who works daily with customers and Solar product dealers in India, you’re in the right place.
What Is a Solar On Grid System?
To put it simply, an on-grid solar system is a solar power setup that is connected directly to the government electricity grid. Unlike systems with batteries, this setup works in coordination with the grid to supply electricity to your home or business.
When customers ask me what is solar on grid system, I explain it like this:
You generate electricity from sunlight during the day, use what you need instantly, and send the extra power back to the grid. At night or during cloudy weather, you seamlessly draw power from the grid again with no interruption, no manual switching.
This balance is what makes on-grid systems affordable and highly efficient.
Why Grid System Is Important in Solar Power?

Many first-time buyers underestimate why grid system is important. From my experience, the grid is what makes solar practical for most urban and semi-urban users.
The grid acts as:
- A backup power source when solar generation is low
- A storage alternative, removing the need for costly batteries
- A financial benefit, thanks to net metering credits
Without the grid, you would either face power cuts or need expensive battery banks. That’s why, at Sun AP Ecopower, we recommend on-grid solutions for customers with reliable electricity connections.
How On Grid Solar System Works – Step-by-Step Explanation
Now let’s break down how solar on grid system works in a way that’s easy to visualise and understand.

1. Solar Panels Generate DC Power
The process begins with the solar panel on grid system installed on your rooftop. These panels absorb sunlight and convert it into direct current (DC) electricity. The better the sunlight, the higher the generation.
In our installations, we carefully design the panel layout to avoid shade and maximise daily output.
2. On Grid Solar Inverter Converts Power
DC electricity cannot be used directly in homes or offices. This is where the on grid solar inverter comes in. It converts DC power into alternating current (AC), which runs your appliances.
From my experience, inverter quality directly affects system performance. This is why customers often ask for reliable on grid solar inverters dealers, and we guide them toward proven brands with long warranties.
3. Power Is Used by Your Load First
The generated AC power is first consumed by your home or business. Fans, lights, computers, air conditioners everything runs on solar before the grid supplies any power.
This instant usage is what brings visible reductions in electricity bills from day one.
4. Excess Power Goes to the Grid via Net Meter
When your system produces more power than you consume, the extra electricity flows back to the grid through a bidirectional net meter. This process is called net metering.
At Sun AP Ecopower, we assist customers with the full net metering approval process, which is often confusing without proper guidance.
5. Import Power When Solar Is Not Available
At night or during low sunlight conditions, your system automatically draws electricity from the grid. There is no manual intervention required, which makes on grid systems extremely user-friendly.
How An On Grid Solar System Reduces Your Electricity Bill
This is where customers really start paying attention.
Your bill has reduced because:
- You consume your own solar power during the day
- Extra units exported to the grid are credited
- Only the “net” electricity used is billed
In many residential projects we’ve handled, customers see a 60–90% reduction in monthly electricity costs, depending on system size and usage habits.
Is On Grid Solar Right for Homes and Businesses?
Based on my selling and installation experience, an on-grid system is ideal if:
- You have a stable grid connection
- You use most electricity during the daytime
- You want a faster return on investment
- You prefer a lower upfront cost
Commercial buildings, factories, hospitals, schools, and large homes benefit the most because their daytime consumption aligns perfectly with solar generation.
Final Thoughts
After working closely with hundreds of customers, I can confidently say that understanding how on grid solar system works helps people make smarter, long-term energy decisions. An on-grid setup is simple, cost-effective, and perfectly suited for today’s power needs.
At Sun AP Ecopower, we don’t just sell systems; we guide customers through design, approvals, installation, and long-term performance. As trusted Solar product dealers in India, our goal is to help you switch to solar with confidence, clarity, and complete support.
If you’re considering solar and want honest advice from people who work in the field every day, we’re always happy to help.
Frequently Asked Questions
1. What is an on-grid solar system?
An on grid solar system is connected to the electricity grid and allows you to use solar power while exporting excess energy back to the grid through net metering.
2. How on grid solar system works during power cuts?
During power cuts, on grid systems automatically shut down for safety reasons. They restart once grid power returns.
3. What is the role of an on grid solar inverter?
The on grid solar inverter converts DC power from solar panels into usable AC power and synchronises it with the grid.
4. Is net metering mandatory for on grid solar?
Yes, net metering is essential to export excess power and receive billing credits from the electricity board.
5. How long does it take to recover the investment?
Most customers recover their investment within 3 to 5 years, depending on system size and electricity usage.
6. Why choose Sun AP Ecopower for on grid solar installation?
At Sun AP Ecopower, we provide end-to-end solutions from consultation and approvals to installation and after-sales support ensuring long-term performance and peace of mind.



