Blog - GridFree

FAQ: What is a GridFree...

FAQ: What is a GridFree Solution

Question: What is the difference between the GridFree and the Grid-tied installation?

There are basically just two possible types of installations: Grid-tied and Off-Grid.

The grid-tied installation means the inverters work in synchronization w

13.Oct 2016
| Blog - GridFree

FAQ: Adding the solar...

FAQ: Adding the solar microinverter to the central inverter

Question: I have a permit to connect a 2 kWp solar installation. At this time I have a 1.5 kW inverter. I consider connecting another set of two 250Wp panels with microinverters to increase from 1.5kW to full power of 2 kW. Are the micro

09.Aug 2016
| Blog - GridFree

Understanding the EN 50438 for...

Understanding the EN 50438 for MicroInverter Operation

The EN 50438 gives the specifications of the Grid parameters. The microiverters are required to operate within the limits of this EN standard.

The parameters mean if the grid frequency is above 52 Hz or bellow 47.5 Hz, the microin

03.Aug 2016
| Blog - GridFree

Small solar panel with the...

Small solar panel with the solar micro-inverter

Question: I have a 185Wp panel. How will this panel work with a 250Wp microinverter?

Answer: The panel will work with the microinverter only if the voltage of the panel matches the operating voltage of the inverter. If the voltage matches,

18.May 2016
| Blog - GridFree

FAQ: Multiple micro-inverter...

FAQ: Multiple micro-inverter installation

I have a microinverter installation with products from ABC Company. I have 2kW installation (8x250Wp). Now I wish to increase my installation with more inverters. My questions:

1) The products from ABC Company use a PLC communication to work

05.Apr 2016
| Blog - GridFree

Micro-Inverter –  Combined...

Micro-Inverter – Combined Energy at Your Hand

Combining the existing water/wind power plants with additional energy supply from solar panels.

Smart energy handling with solar micro-inverters, especially for small water power plants: if there is a lot of sunshine, usually th

05.Apr 2016
| Blog - GridFree

Micro-Inverter – Solar...

Micro-Inverter – Solar Retrofitting

Adding additional permanent or temporal modules to increase the yield of the solar installations. Increase the yield from your existing solar installation by simply adding one or more extra solar panels with microinverters.

05.Apr 2016
| Blog - GridFree

Micro-inverters:  More Energy...

Micro-inverters: More Energy From Shaded Panels

Some roofs may have a partial shading - prom chimneys, from parts of tries. With central inverter such partial shading will completely degrade the performance of the whole solar installation. With microinverters the shading is limited o

12.Mar 2016
| Blog - GridFree

(Dis)assembling the AC...

(Dis)assembling the AC connector for YC500

It is quite easy to assemble (or disassemble) the water proof AC connector for the .

For GridFree installations you may simply replace the connectors with the .

10.Mar 2016
| Blog - GridFree

Micro Inverter installation...

Micro Inverter installation diagram - 3-phase (using YC500)

A suggestion of the installation diagram for the three phase micro-inverter installation.

10.Mar 2016
| Blog - GridFree
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