Can we install Solar Ongrid system with Micro inverter & How it works ? see the Details.

Micro inverter with Ongrid system

Yes, you can absolutely install a Solar On-Grid (Grid-Tied) System using Micro Inverters, and in many cases, it can be more efficient than using a traditional string inverter, depending on your site conditions.

🔌 What is a Micro Inverter?

A micro inverter is a small inverter installed behind each solar panel, which converts the DC (direct current) electricity produced by the panel into AC (alternating current) electricity — the type used in your home and by the electricity grid.

✅ How It Works (On-Grid with Micro-Inverter):

In a Micro Inverter system, each solar panel has its own dedicated inverter mounted directly behind it. This inverter converts DC (Direct Current) from that individual panel to AC (Alternating Current) right at the panel level. The AC output from all micro inverters is then combined and fed into the main grid-connected panel.

So, unlike a string inverter that manages a group of panels together, micro inverters handle each panel independently.

🔧Components Required:

* Solar Panels

* Micro Inverters (1 per panel)

* AC Combiner Box / Enphase IQ Combiner (if using Enphase)

* AC Cabling

* Metering (Net Meter if on-grid)

* Grid Connection

🔍Working Flow:

1.Sunlight hits the solar panel, generates DC electricity.

2. Micro inverter converts DC to AC on the spot.

3. AC output goes to combiner box, then to the main distribution panel.

4. Power is consumed in your home, and excess goes to the grid via net metering.

✅ Advantages of Using Micro Inverters in On-Grid Systems:

| 🌥 Panel-Level Optimization | Each panel works independently. Shading on one panel won’t reduce the output of others. |

| 📊Real-Time Monitoring | You can track performance per panel (usually via app/cloud). |

| ⚡Higher Efficiency | Great for complex rooftops with different angles or partial shading. |

| 🔌Scalability | Easier to expand the system later, just add more panels + micro inverters. |

| 🔒 Safety| No high-voltage DC wiring; safer for residential use. |

| 🧩 No Single Point of Failure | If one micro inverter fails, rest of the system still works. |

⚠️ Disadvantages:

| 💰 Higher Initial Cost | Micro inverters cost more than string inverters (per watt). |

| 🔧More Points of Failure | More units = more potential maintenance (though rare). |

| 📦More Complex Installation | Especially for larger systems (more wiring, connections). |

| 🔩 Harder to Access | If one fails, accessing it behind a panel on the roof can be tricky. |

🔁 Popular Micro Inverter Brands:

Enphase(most popular globally, especially for residential)

APsystems

Hoymiles

Chilicon Power

🏁 Best Use Cases:

Homes with shading issues

Multi-orientation roofs

Systems requiring panel-level monitoring

Small to mid-size installations (<10kW generally)

Can Micro Inverters Be Installed Under PM Surya Ghar Yojana Subsidy Program?

👉 Yes, but with important conditions.

Under the PM Surya Ghar: Muft Bijli Yojana, you can install a grid-tied (on-grid) solar system using micro inverters, if the following criteria are met:

✅Key Requirements for Using Micro Inverters under the Scheme:

| Requirement |

| 🏢MNRE Approved Vendor | The installation must be done by a registered vendor under the MNRE's National Portal. |

| ⚡System Type | Only on-grid rooftop systems are eligible (no hybrid or off-grid). |

| 🛠️ Components Used | All components (modules, inverters) must be DCR-compliant (Domestic Content Requirement), i.e., Made in India. |

| 📄Net Metering| The system must be net metered and grid synchronized. |

| 📷Installation Proof | You must upload photos, capacity, and documents on the national portal. |

⚠️ Important for Micro Inverter Use:

Micro inverters must be BIS certified and listed as approved models on the MNRE portal.

Vendors often prefer string inverters because they are cheaper and easier to install, but you can request micro inverters.

Some DISCOMs or vendors might not offer micro inverter options unless specifically asked.

💡What You Can Do: