Understanding what a photovoltaic inverter, what it is for and how to choose | Green Life Zen

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Even the largest and the most remarkable photovoltaic setup will not offer us with electrical power without an inverter. It is an essential element of any PV system, thanks to which we can power our home devices with energy directly from the sun. What should we pay attention to when choosing an inverter? Take a look at our post, from which you will find out:

  • what is a photovoltaic inverter
  • what function it performs
  • how to choose devices customized to our needs?

Photovoltaic inverter what is it?


An inverter, also called a solar inverter (or photovoltaic inverter) is a gadget that transforms direct current (DC) into alternating existing (AC). To put it simply, it is a piece of equipment necessary for the correct performance of the photovoltaic installation that allows the use of kept energy and powering home appliances.

What is the inverter for?


As we mentioned, the primary function of the inverter is to convert direct current into alternating current. Without this procedure, we would not be able to utilize the energy produced by the photovoltaic setup. It is worth keeping in mind that the inverter likewise has other important functions. The device keeps an eye on the most important operating criteria, consisting of frequency and voltage. It likewise manages the accuracy of functioning on the occasion that the standard specifications are exceeded, the device detaches from the network.

Types of photovoltaic inverters


There are numerous kinds of photovoltaic inverters offered on the market, suited to various requirements of specific solar farms and choices of the usage,. It is worth knowing the fundamental distinctions between them as it will be practical specifically if you are preparing to install PV right now.

Division according to the type of installation in which they work

  • on-grid inverters, thanks to which the surplus energy produced by the PV setup goes to the power grid.
  • off-grid inverters that are not adjusted to deal with the electrical grid and that transfer excess energy to batteries.
  • hybrid inverters, a type integrating the other two. They can both provide the surplus to the electrical network and direct it to the batteries.

Division according to the number of stages

  • single-phase inverters - most often chosen for setups with a power of approximately 3 kW.
  • three-phase inverters - utilized in bigger PV systems.

Division according to the kind of setup and location

  • central inverter - set up in a separate room and utilized in conventional PV systems.
  • microinverter - installed under photovoltaic panels and utilized for extremely little installations (micro-installations).

Make sure to inspect what energy storage is and why one ought to take it into account when designing a photovoltaic setup.

Photovoltaic Inverter How to Choose?


An appropriate inverter should first of all be adapted to the possibilities of a photovoltaic installation. It is therefore required to estimate the energy demand and PV capability. Most notably, the percentages between the power of the photovoltaic system and the power of the inverter need to be kept.



In a scenario where the produced power of the panels is greater than the greatest possible power of the inverter, part of the produced energy is lost. It is frequently suggested that the power of the panels must be 80-125% of the power of the inverter.

It is also essential to select a device from a tested maker. The inverter should have an assurance of the highest quality and should work reliably. In the deal of our store you will find inverters from Green Cell, which combine numerous functions and will certainly work perfectly in your PV setup!