Blog - Micro-Inverters

Testing the new 500W microinverters

Testing the new 500W microinverters

We are testing a new dual microinverter with 2x 250Wp (500Wp) rating. This micro-inverter supports operation from the DC battery power source. The nominal rating is 500W, the inverter can run slightly above this value at max powe

MicroInverter - the revolutionary solution for solar...

MicroInverter - the revolutionary solution for solar installations

• Complete power station in the smallest size. An easy installation with no maintenance. A fully modular system.
• Effective and easy solution for an independent energy production using the existing connection to standard 230V AC grid.

Microinverter plug

Can I plug the Microinverter directly into the socket or will I need special connector for that?

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The plug to your domestic grid must becorresponding with standarts of your Country. You can buy these connectors in commonelectrical supplie

GridFree installation design

GridFree installation design

This drawing shows the wiring for a GridFree installation with energy monitoring using the SDS boards.

Does GridFree kit panel + Microinverter includes everything...

The kit includes solar panel and microinverter. Additional needed accessorie is cable which you may connect to your switchboard:

To avoid energy overloads to public grid, you should use current monitoring relay:

What to do if solar panel produced 150W and i just consume...

In this situation, the energy will go to the public grid which is not allowed in most of countries in EU. So you have to avoid this situation. 1) Install current monitoring relay: 2) the power of solar system with gridfree have to be lower then yo

Can I charge the battery during the sunny day and use...

GridFreesystem doesn't have any output to charge batteries. But it still can be solved in other way:

You need these parts:

LiFePO4 batteries:

Solar regulator:

DC contactor:

Demonstrating the GridFree solution

Demonstrating the GridFree solution

This is our GridFree demonstration board for Wireless ISPs to show examples how to reduce .

FAQ: Avoid overflows of energy to the Grid

FAQ: Avoid overflows of energy to the Grid

Question: In my house I have only 100W of minimal consumption, when I connect the GridFree set with a 260Wp panel and 250W microinverter what will happen with the energy flowing from the inverter?

Answer: The 260Wp panel and the 250W microinver

The GridFree: Why do you call the GridFree the...

The GridFree: Why do you call the GridFree the “Grid-free”? Is it off-grid or what?

Technically speaking there are only two possibilities of using the energy from the solar installation: A) The grid-tied installation works in harmony with the Grid, feeds the energy to the Grid