blog

Installing micro inverters involves several key steps. Here's a detailed guide to help with the installation process:

Preparation

Gather Tools and Materials:

Tools: Screwdrivers, wrenches, wire cutters, multimeter, safety gear (gloves, goggles).

Materials: Micro inverters, mounting hardware, AC trunk cable, DC cables, grounding wires.

Safety Precautions:

Ensure the installation site is safe.

Turn off the main electrical supply.

Follow all safety protocols and wear appropriate protective gear.

Mounting the Micro Inverters

Locate the Position:

Typically, micro inverters are mounted on the racking system beneath each solar panel.

Secure the Inverter:

Attach the micro inverter to the racking using the provided hardware.

Ensure it is firmly in place and properly aligned.

Connecting the Inverters

AC Trunk Cable:

Run the AC trunk cable along the racking system.

This cable will connect all the micro inverters to the main AC distribution point.

Inverter Connections:

Connect each micro inverter to the AC trunk cable using the built-in connectors.

Ensure secure and proper connections to avoid electrical issues.

Grounding

Grounding Wires:

Connect the grounding wires from each micro inverter to the racking system or a dedicated grounding line.

Follow local codes and manufacturer instructions for grounding.

Installing Solar Panels

Panel Positioning:

Place the solar panels above the micro inverters.

DC Connections:

Connect the DC output cables from the solar panels to the corresponding input connectors on the micro inverters.

Ensure the polarity (positive and negative) is correct to avoid damage.

Final Electrical Connections

AC Distribution Point:

Connect the AC trunk cable to the main AC distribution box or combiner box.

This typically involves running the cable to an inverter junction box and connecting it to the main breaker or fuse.

Grid Connection:

Ensure the system is properly connected to the electrical grid, complying with local regulations and utility company requirements.

System Testing and Commissioning

Power On:

Turn on the main electrical supply and the solar system.

Monitoring and Testing:

Use a monitoring system or software (often provided by the inverter manufacturer) to check the performance of each micro inverter.

Ensure all units are operating correctly and producing power.

Inspection:

Conduct a thorough inspection to ensure all connections are secure and there are no loose wires or components.

Documentation and Reporting

Record Keeping:

Document the installation process, including photographs, connection diagrams, and any test results.

Compliance:

Submit necessary documentation to local authorities or utility companies if required.

Additional Tips

Follow Manufacturer Instructions:

Each micro inverter model may have specific installation instructions. Always refer to the manufacturer’s manual for precise guidelines.

Professional Installation:

If you are not experienced with electrical work, it is recommended to hire a certified solar installer or electrician to ensure a safe and compliant installation.

By carefully following these steps, you can ensure a safe and effective installation of your solar grid micro inverters.