Choosing to go solar is a smart decision for homeowners in Kutch, but the next big question is: which type of system do I need? The three main types—On-Grid, Off-Grid, and Hybrid—each have their own benefits. Let's break them down to help you decide.
1. On-Grid Solar System (Grid-Tied)
This is the most popular and affordable choice for homes in cities like Bhuj, Anjar, and Gandhidham where grid electricity is reliable. Your system is connected to the local power grid (DISCOM like PGVCL).
How it Works
Solar panels generate power during the day. Any excess power is sent back to the grid via a "Net Meter," earning you credits on your bill. At night, you draw power from the grid as usual.
- Lowest Cost: No expensive batteries are needed.
- Maximum Savings: Reduce your bill by up to 90% through net metering.
- Subsidy Eligible: Fully eligible for the ₹78,000 government subsidy.
- Note: It does not work during a power outage for safety reasons.
2. Off-Grid Solar System (Stand-Alone)
Ideal for remote areas in Kutch, farms (wadis), or locations with no reliable grid connection. You are completely independent of the power company.
How it Works
Solar panels power your home and charge a battery bank during the day. At night or on cloudy days, your home runs entirely off the stored energy in the batteries.
- Total Independence: No power bills and no reliance on the grid.
- Power Anywhere: Perfect for locations where grid extension is too expensive.
- Higher Cost: Requires a large, expensive battery bank that needs replacing every 5-10 years.
- Note: Generally not eligible for the central government rooftop subsidy.
3. Hybrid Solar System
The "best of both worlds" solution for homes that want savings but also face frequent power cuts. It combines grid connectivity with battery backup.
How it Works
Your system is connected to the grid for net metering savings *and* has a battery bank. During a power cut, the system automatically switches to battery power, keeping your essential lights and fans running.
- 24/7 Power Security: You have backup power during outages.
- Bill Savings: Still benefits from net metering when the grid is active.
- Most Expensive: Costs more than on-grid due to the added inverter and batteries.
- Subsidy Eligible: The solar panel component is eligible for subsidy, but the battery cost is not.
Quick Comparison Table
| Feature | On-Grid | Off-Grid | Hybrid |
|---|---|---|---|
| Grid Connection | Yes | No | Yes |
| Batteries Required | No | Yes (Large Bank) | Yes (Smaller Bank) |
| Power Backup | No | Yes (Full Time) | Yes (During Outage) |
| Govt. Subsidy | Yes (Fully Eligible) | No | Yes (On Panels Only) |
| Initial Cost | Lowest | High | Highest |
Which One Should You Choose?
- Choose On-Grid if: You live in a city with reliable power and your main goal is to eliminate your electricity bill and claim the full subsidy.
- Choose Off-Grid if: You are in a remote location with no grid access, or you want complete independence from the power company.
- Choose Hybrid if: You want to save money but also need backup power for frequent outages in your area.