Rooftop Solar Systems
An **On-grid solar system** (also called a **grid-tied solar system**) is connected to the electricity grid. Most Indian households with reliable grid connections prefer this system. At Jai Infotech, we specialize in installing on-grid rooftop solar systems for both **independent homes** and **housing societies**.
Components of an On-Grid Solar Power Plant
- 1. Solar Panels: Installed on rooftops to absorb sunlight and convert it into **DC power**.
- 2. Solar Inverter: Converts DC power into **AC power** to run household appliances.
- 3. Mounting Structures: Strong, rust-proof structures designed to hold panels for up to **25 years**.
- 4. Bi-directional Meter: Tracks **power generated**, **power consumed**, and **power exported to the grid**.
- 5. Solar Accessories: Includes DC cables, AC cables, DC combiner boxes, AC combiner boxes, earthing strips, and MC4 connectors.
System Capacity & Subsidy Information
On-grid rooftop solar systems come in different capacities: **2 kW, 3 kW, 5 kW, 10 kW**, and more. Subsidies are available under government schemes:
- For **1-2 kW** systems → Subsidy of ₹30,000 to ₹60,000
- For **2-3 kW** systems → Subsidy of ₹60,000 to ₹78,000
- For **above 3 kW** systems → Subsidy up to ₹78,000
How an On-Grid Solar System Works
- Solar panels absorb sunlight and generate **DC power**.
- The **solar inverter** converts DC into **AC power**.
- The **bi-directional meter** supplies AC power to your home.
- Excess power is exported to the grid via **net metering**.
- At night or during low sunlight, the system imports power from the grid.
Net Metering Explained
The **net metering system** records:
- Electricity **generated** by the solar plant
- Electricity **consumed** by the household
- Electricity **exported** to the grid
- Electricity **imported** from the grid
If you generate more power than you consume, the extra units are deducted from your electricity bill. If you consume more than you generate, additional units are billed at standard rates.
Frequently Asked Questions
1. What is an On-Grid Solar System?
An on-grid solar system is connected to the electricity grid and uses a **bi-directional meter** to track power generation, consumption, and export.
2. How Does an On-Grid System Work?
Solar panels generate DC power → Solar inverter converts it to AC power → Household uses AC power → Excess electricity is exported to the grid → Imported power is used at night.
3. Which is Better — On-Grid or Off-Grid?
If you live in an **urban area with reliable electricity**, an **on-grid system** is ideal. If you live in **remote areas without grid access**, an **off-grid solar system** is recommended.