On-Grid Solar System
Solar panels connected to the bijli line. The simplest and most common choice for homes and shops that get regular power.
What is an on-grid solar system?
Solar panels on your roof make power in the day. Your home uses it first. What is left goes to the bijli line (NBPDCL in Sitamarhi), and it is counted in your bill. This is called net metering.
There is no battery, so the system is simple. At night and on cloudy days, you use bijli from the line as usual.
- No battery, so simple
- You can get the PM Surya Ghar subsidy
- Extra power is counted in your bill
- It stops when bijli goes, for safety
How it works
During a power cut: the system switches off for safety.
- Panels make power. Sunlight on the panels makes DC power.
- Inverter changes it. The inverter changes DC power into AC power for your home.
- Your home uses it. Lights, fans and the fridge use the solar power first.
- Extra goes to the line. Power you do not use goes to the bijli line. The meter counts it.
- Bill gets smaller. You pay only for the difference between what you took and what you gave.
Panels power your home. Extra power goes to the grid and the meter counts it as export.
Panels are off. Your home uses grid power and the meter counts it as import.
Your bill = units imported − units exported
What is in the system
Solar panels
They make the power. Makers usually give a long warranty.
Inverter
Changes DC to AC. It stops when the line has no power, to keep workers safe.
Mounting stand
A strong steel stand for your roof. We can make it higher for places where water gathers.
Earthing and safety
Proper earthing and surge protection against lightning and faults.
Net meter
The bijli company fits it. It counts the power you take and give.
Good things
- Lower bill with net metering
- Central and Bihar subsidy available
- No battery to change later
- Very little upkeep, mostly cleaning
- Bijli line is always your backup
Things to know
- No power when the line is off, unless you add a battery (see Hybrid)
- You need a roof area without shade
- The bijli company takes time to approve net metering. We do the follow-up.
Subsidy for on-grid: central + Bihar
Central government subsidy (PM Surya Ghar): ₹30,000 for each of the first 2 kW, and ₹18,000 for the 3rd kW. So you get up to ₹78,000 for a 3 kW system or bigger.
Bihar government subsidy: ₹10,000 for each kW, up to ₹20,000 per house. This comes on top of the central subsidy and goes straight to your bank account. It is first-come-first-served and the total number of houses is limited, so it can stop or change.
Together, a 3 kW system can get up to ₹98,000 (₹78,000 central + ₹20,000 Bihar). We check the latest status for you before you apply.
| System size | Central | Bihar | Total |
|---|---|---|---|
| 1 kW | ₹30,000 | ₹10,000 | ₹40,000 |
| 2 kW | ₹60,000 | ₹20,000 | ₹80,000 |
| 3 kW & above | ₹78,000 | ₹20,000 | ₹98,000 |
The subsidy comes to your bank account after the system is installed, checked and started.
Who it is good for
Homes with regular bijli
Lower your bill without paying for a battery.
Shops and small offices
You use most power in the day, when solar makes the most.
Schools and clinics
Daytime use fits solar well.
Farms and godowns on the grid
Lower running cost where backup is not a must.
Compare the three systems
| On-Grid | Hybrid | Off-Grid | |
|---|---|---|---|
| Uses the bijli line | Yes | Yes | No |
| Has a battery | No | Yes | Yes |
| Works when power goes | No (stops for safety) | Yes, on battery | Yes, on battery |
| PM Surya Ghar subsidy | Yes | Ask us | Usually no |
| Net metering | Yes | Yes | No |
Other systems: Hybrid Solar | Off-Grid Solar
Common questions about on-grid solar
Will it run when bijli goes?
No. For safety, an on-grid system stops when the line has no power. If you want power in a cut, choose a hybrid system with a battery.
What is net metering?
A special meter counts the power you take from the line and the power you give back. You pay only for the difference.
Do you do the net metering work?
Yes. We apply to the bijli company and follow up till the meter is fitted.
Can I get the subsidy?
Yes. Homes with an on-grid rooftop system can get the central subsidy (up to ₹78,000) and the Bihar subsidy (up to ₹20,000), as per the rules and while it is available.
How much roof do I need?
About 80 to 100 sq ft without shade for each kW. We confirm at the site visit.
How do I get a quote?
Book a free site visit. We check your roof and bill, then give you a written quote with the subsidy you can expect.
Want on-grid solar?
Book a free site visit in Sitamarhi, Dumra or nearby.
Book a free site visit+91 75648 15146