Understanding the Two Main Types of Solar Power Systems
As solar energy adoption grows across India, many people ask the same question what is the difference between an on grid and off grid solar system?
Both systems use sunlight to generate electricity, but they function differently when it comes to how the power is stored and used. Knowing the distinction helps you choose the right solar system for your home or business.
At APS Solar System in Sirsa, we help families and organisations make informed solar choices. Whether you want to stay connected to the grid or go fully independent, our team ensures the perfect solar solution designed for your energy needs.
What is an On Grid Solar System?
An on grid solar system, also known as a grid-tied solar system, is connected directly to the local electricity grid. It generates power through solar panels and uses an inverter to convert the direct current (DC) from the panels into alternating current (AC), which powers your home.
When your panels produce more electricity than you consume, the excess power is exported back to the grid. This process is called net metering, allowing you to earn credits on your electricity bill.
How an On Grid System Works:
- Solar panels capture sunlight and generate DC electricity.
- The inverter converts DC into usable AC power.
- The power runs your home appliances.
- Extra power is sent to the grid via a bidirectional meter.
- When your system produces less energy (like at night), you draw electricity back from the grid.
This exchange makes the on grid solar system an excellent option for urban households and businesses with a stable grid connection.
Advantages of On Grid Solar Systems
- Cost-Effective Setup: No batteries are required, reducing installation costs.
- Lower Electricity Bills: Through net metering, you save or even earn credits.
- Easy Maintenance: Fewer components mean simpler upkeep.
- Environmentally Friendly: Reduces reliance on fossil fuels and lowers your carbon footprint.
At APS Solar System, we install high-quality on grid solar systems with certified inverters and Tier-1 solar panels for maximum performance and safety.
What is an Off Grid Solar System?
An off grid solar system is a self-sufficient power system that works completely independently of the main electricity grid. It stores solar energy in batteries, allowing you to use electricity even during the night or power cuts.
This system is ideal for areas where electricity supply is unreliable or unavailable, such as rural or remote regions.
How an Off Grid System Works:
- Solar panels generate electricity from sunlight.
- The energy passes through a charge controller to regulate charging.
- Power is stored in deep-cycle batteries.
- The inverter converts stored DC power into AC electricity.
- The system supplies continuous power to your home or business.
Advantages of Off Grid Solar System
- Energy Independence: You are not affected by power cuts or grid failures.
- Perfect for Remote Areas: Works even where no grid connection exists.
- Reliable Backup Power: Batteries ensure continuous electricity supply.
- Eco-Friendly Solution: 100% renewable and sustainable.
Off grid systems may have higher initial costs due to batteries, but they provide complete control over your power supply a key reason many rural homeowners choose them.
Key Differences Between On Grid and Off Grid Solar Systems
| Feature | On Grid Solar System | Off Grid Solar System |
|---|---|---|
| Grid Connection | Connected to electricity grid | Independent from the grid |
| Battery Requirement | Not required | Required |
| Power During Outage | No (depends on grid) | Yes (battery backup) |
| Net Metering Benefit | Available | Remote areas or frequent outages |
| Best For | Homes with reliable grid supply | Higher (battery cost) |
| Initial Cost | Lower | Higher (battery cost) |
Which Solar System is Right for You?
Choosing between an on grid or off grid solar system depends on your location, energy usage, and budget.
- If you live in an area with regular power supply and want to reduce electricity bills, an on grid system is your best choice.
- If you face frequent power cuts or live in a rural area, an off grid system ensures you always have electricity.
At APS Solar System, our experts help you evaluate your energy requirements, available space, and local power conditions to recommend the most efficient solution.
Government Support and Subsidy Information
The Ministry of New and Renewable Energy (MNRE) and the Haryana Renewable Energy Development Agency (HAREDA) provide financial incentives to promote solar energy adoption.
- For on grid rooftop systems, residential customers can avail up to 40% subsidy under the MNRE rooftop solar program.
- For off grid systems, subsidies are available for select areas under rural electrification initiatives.
APS Solar System assists customers with the entire process from application to installation ensuring you benefit from all available government schemes.
Maintenance and Lifespan
Both systems require minimal maintenance. Cleaning solar panels regularly and scheduling periodic inspections ensures consistent energy output.
- On Grid Systems: Lifespan of 25 years or more, with low upkeep.
- Off Grid Systems: Similar lifespan, though batteries may need replacement every 5–7 years.
With professional installation and regular servicing from APS Solar System, you can expect decades of reliable solar energy.
Why Choose APS Solar System in Sirsa?
As a trusted solar company in Sirsa, APS Solar System provides end-to-end services from site assessment and system design to installation and after-sales support.
- Certified solar engineers
- Tier-1 solar panels and BIS-approved inverters
- Transparent pricing with easy financing options
- Expert guidance for subsidy and government approvals
Our mission is to make clean energy accessible, affordable, and sustainable for everyone.
The Future of Solar Energy in India
India’s push toward renewable energy has made solar power one of the fastest-growing industries. With both on grid and off grid solar systems, families can now enjoy uninterrupted electricity while contributing to a greener planet.
By partnering with APS Solar System, you’re not just installing solar panels you’re investing in a brighter, cleaner, and more independent energy future.
