Solar Photovoltaic Inverters Types

We know that Inverter is an essential component of nearly all types of solar photovoltaic system; it is defined as the device that converts DC electricity to AC electricity.
Now I will introduce to you all types of solar photovoltaic Inverters present at the market:
First:  Stand Alone Solar Inverter, which characterize by the following:
1-     It coverts DC electricity to AC electricity.
2-   It runs by pulling DC current from batteries charged from any DC electricity source like engine generator or wind turbine …etc.
3-   In the same time it refill batteries with DC electricity from any AC current Source when it possible.
4-   It used in feeding homes and small industrial system by AC electricity as a power backup.
In most cases as conclusion we use it in stand alone solar photovoltaic system with backup.
Second: Battery Backup Solar Inverter, which characterize by the following:
1-     It used to get AC electricity from batteries and this AC electricity will go to a selected area which needs power during outage and in the same it brings extra electricity to utility grid "feed in tariff ".
2-   It contain onboard charger to manage the batteries energy.
In most cases as conclusion we use it in stand alone solar photovoltaic system without backup.
Third: Grid Connected Solar Inverter, which characterize by the following:
1-     It used to convert DC electricity to AC electricity and it is programmed to automatically turn off during grid power outage.
2-   It allows the home owner to sell electricity to Electricity Company.
In most cases as conclusion we use it in grid connected photovoltaic system without battery backup.
Fourth: Micro Inverter, which characterize by the following:
1-     It attaches directly to individual photovoltaic modules.
2-   It is used to extracting maximum electrical power from each module.
3-   Although it is highly efficient as it produces more electrical power than on grid inverter but it is more costly.

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