On Grid Solar System कैसे काम करता है | On Grid Solar Power System | Solar Panels For Home

On Grid Solar System कैसे काम करता है | On Grid Solar Power System | Solar Panels For Home

An on-grid solar system is one of the best options to reduce your electricity bill and can even make it almost zero. It is more affordable than other systems because it does not require batteries and also offers government subsidy.

What is an On-Grid Solar System?

• Works only when the electricity grid is available
• If the grid goes off, the system normally shuts down
• Best suited for areas with 24-hour or full daytime electricity

How It Works

• Solar panels generate DC power
• The on-grid inverter converts DC to AC using grid reference
• Solar power first runs home load
• Extra power is exported to the grid (net metering)
• At night or during low generation, power is taken back from the grid

This import–export mechanism helps keep the electricity bill close to zero.

Who Should Install It?

• Homes with continuous daytime electricity
• Factories and commercial units to reduce high power bills
• Homes looking to avail subsidy and lower system cost

❌ Not suitable for places with frequent daytime power cuts, as the system won’t work during outages.

Types of On-Grid Inverters

• String Inverter – Panels connected in series, affected by shading
• Micro Inverter – Each panel works independently, best for shaded roofs
• Micro Inverter with Off-Grid Feature (new) –
Example: Jio Spark micro inverter can run ~30% load even when grid is off

Cost of On-Grid Solar System

• Subsidy-based system: ₹50,000 – ₹60,000 per kW (can go up to ₹80,000)
• Non-subsidy system: ~₹40,000 per kW
• Subsidy benefit available up to 5 kW only
• For 6 kW or larger systems, non-subsidy is often more economical

Conclusion

• Best system for bill reduction, not backup
• Lowest cost solar option
• Ideal for grid-stable locations
• Technology has evolved with micro inverters that can now offer limited backup

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