Blog - Solar panels

Reference using of micro-inverter and solar panels

Reference using of micro-inverter and solar panels

04.Nov 2019
| Blog - Solar panels

A lot of our customers want to reduce the energy consumption of their house with an installed heat pump system by producing their own energy from the sun.  

It is possible to do it without making an expensive commercial installation, by using the energy only for self-consumption but still with connection to the public grid.

The ideal solution for this case is the GridFree installation with solar panels, Micro-Inverters, and current relay.
GridFree means that you generate a part of the energy directly on your own and you reduce the consumption from the grid. The more you generate the less you need to take from the grid. The less you take from the grid, the less you pay to the grid-operator (utility company). The money that you save this way is your profit from the GridFree installation.

The installation is very easy. Each Micro-Inverter is directly installed and connected to each solar panel. If you will use more powerful invertors, you can connect it to the 2 solar panels. The connection between each microinverters is provided by AC trunk cable 230V. This avoids unnecessary energy loss during long-range energy transmission in the DC assembly.

The current relay can be installed when the consumption is not constant and fluctuates and the power produced may be greater than the energy consumed,
than switches off the Micro-Inverters and prevent grid overflows and reseller problems.


Example of the scheme:
3x Solar Micro Inverter Grid-tied DC/AC 300W
https://www.ev-power.eu/_d7132.html

3x Solar panel GWL/Sunny Mono 300Wp 60 cells, MPPT 32V
https://www.ev-power.eu/_d7112.html

1x Current relay - PRI-32 or PRI-51.

The system is divided by 3 Micro-Inverters with 1 current relays so the switching of should be solved: consumption of the house lower than 840 W,
the current relay should switch off the micro inverters.

 

The Microinverter sections on our web page: 
https://www.ev-power.eu/_d7132.html

The support pages related to the MicroInverters: 
https://www.ev-power.eu/GridFree-FAQ/
https://www.ev-power.eu/blog/GridFree/?CatId=141

 

Please feel free to contact us if you are interested in a similar installation.

 

 

 

 

 

 

 

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