What is on grid solar and how does it work for Indian homes
If you have spoken to a solar vendor or received a rooftop solar quote, you have probably seen the term "on grid solar" without a clear explanation of what it actually means. Before you compare prices or system sizes, understanding this basic concept helps you evaluate every option that follows. We break it down here in plain, homeowner friendly language.
TL;DR - Summary
- What is on grid solar? It is a rooftop solar system that connects directly to the electricity grid. Your panels generate power, your home uses what it needs, and any surplus flows back to the grid through a net meter. There are no batteries involved.
- Why do Indian homeowners choose it? On grid solar has the lowest upfront cost among system types, qualifies for government subsidy under PM Surya Ghar, and offers the fastest payback through net metering credits on your electricity bill.
- What happens during a power cut? An on grid system shuts down automatically when the grid goes off. This is a safety requirement. If your area has frequent outages, a hybrid system with battery backup may be a better fit.
How on grid solar works
An on grid solar system has three core parts: rooftop solar panels, a grid tied inverter, and a net meter. Panels convert sunlight into DC electricity. The inverter converts that DC into AC power your home appliances can use.
When your panels produce more electricity than your home consumes, the surplus is exported to the grid. Your net meter tracks this export. The units you send out are credited against the units you draw from the grid at night or on cloudy days.
This two way exchange is what makes on grid solar the most cost effective option for urban Indian homes. You use the grid itself as your storage, eliminating the need for expensive batteries.
Why it suits Indian homes
Most homeowners in cities like Bengaluru, Hyderabad, Pune, and Nagpur have reasonably stable grid supply during the day. On grid solar is designed for exactly this scenario. Your panels generate power when the sun is out, offsetting your daytime consumption directly.
The financial case is straightforward. Systems in the 3 kW to 5 kW range typically cost between ₹1.3 lakh and ₹3 lakh before subsidy. PM Surya Ghar provides up to ₹78,000 in subsidy for systems 3 kW and above. After subsidy, most families see payback within four to six years depending on their electricity bill and city tariff rates.
We offer 12 month no cost EMI, making the monthly outflow comparable to what many families already pay in electricity bills. That means your solar investment can start paying for itself from month one.
When on grid may not be enough
On grid solar does not work during power cuts. When the grid goes down, the inverter disconnects your system automatically. This is a safety feature called anti islanding; it protects utility workers repairing the lines.
If your area experiences frequent or prolonged outages, an on grid system alone will not keep your lights on. In that case, a hybrid system (on grid plus battery backup) gives you both bill savings and backup power. We help homeowners assess their outage patterns during the technical site visit so the recommendation matches real conditions, not just sales targets.
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FAQs
On grid solar basics, net metering, and what happens during power cuts.
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