How To Choose A Good Solar Inverter?

How To Choose A Good Solar Inverter

With the rise of solar power systems in Australia, both new and well-known solar inverter manufacturers entered the Australian solar market. As more and more people were becoming aware of the benefits of using solar power systems, the demand for top-quality solar components began to increase. While there are thousands of solar inverter manufacturers and models available in the world of solar components, only a few pass all the quality standards of solar power systems. Choosing the solar inverter that meets the requirements of your home requires proper research. In this article, our expert Compare Solar Quotes team will tell you how to choose a good solar inverter in Australia. 

In a solar power system, the solar inverter plays a vital role in converting DC electricity generated by the solar panels into AC electricity. The conversion made by the solar inverter is necessary as grid-compatible appliances or household appliances do not work with DC electricity. Solar inverters are available in four different types, and these are:

  • Single-phase solar inverter
  • Three-phase solar inverter
  • Microinverters
  • Power optimisers

Factors to consider before choosing a Solar Inverter:

Before declaring a solar inverter as a top quality solar inverter, there are certain factors that solar component experts carefully consider. These factors are:

  • The efficiency of the Solar Inverter

Considering the efficiency of the solar inverter is very important. This is because all the DC electricity generated by the solar panels passes through the inverter. The inverter then converts this electricity into AC electricity so that the appliances can consume this electricity and function. 

All the solar inverters available in the Australian solar market get tested by independent authorities. The authorities provide the maximum efficiency of the solar inverters and a European efficiency rating. These ratings are displayed on the datasheet of the product. 

The efficiency of a solar inverter generally varies depending on the amount of electricity the solar panels generate and the amount of electricity that passes through the inverters. The maximum efficiency of a solar inverter is measured at the point where the inverter performs at its peak capacity. 

In Australia, the standard efficiency requirement of a solar inverter is at least 95 per cent. The majority of the top solar inverter manufacturers offer a solar inverter efficiency of 96 per cent to 98 per cent. 

  • Warranty

The warranty period of solar inverters varies depending on the manufacturers and models of the solar inverters. However, experts recommend both residential and commercial solar customers to choose a solar inverter that offers a warranty of 5 to 10 years. 

We have recently seen a few top solar inverter manufacturers in the Australian solar market who offer an extended period of warranty with their solar inverters. Some manufacturers also offer an extended warranty of up to 20 to 25 years of installation, but you will have to pay a fee in order to extend the warranty period. 

In the last few years, we have seen over a hundred solar installers go out of business in Australia. You will have to contact the solar manufacturer directly if you cannot get in touch with the solar installer in case of emergencies or warranty claims. 

Contacting a solar inverter manufacturer that exists out of Australia is quite a difficult task and will often have you end up with no success. That is why we suggest our customers select a manufacturer who has an office situated in Australia and has an Australian phone number as well. This allows the customers to contact the manufacturer easily in case any problems arise. 

  • PV Evolutions Lab Testing

Since 2014, the PV Evolutions Lab has been testing the reliability of solar panels independently. Countries all over the world consider this solar panel testing result by the PV Evolutions Lab as a great quality indicator of the solar panels. 

In 2019, the PV Evolutions Lab launched an independent testing technique for solar inverters. These test results help people all over the world to identify top quality solar inverters. 

It is essential to note that the testing done by the PV Evolutions Lab is voluntary, and they do not test the entire solar market. The manufacturers of the solar components have to pay a certain amount of money to be a part of these tests. 

  • Solar Inverter Type

There are four types of solar inverters available in the solar market, as mentioned above. One thing that we must keep in mind is that all solar inverters manufactured by a certain manufacturer do not make it to the top ranking of the solar experts. 

For example, the microinverters by Enphase Energy have a top ranking in the Australian solar market, while the power optimisers by SolarEdge allowed the company to reach the top ranking. 

The key features and functionality of the individual solar inverter types determine whether they can make it to the top ranking of solar inverters or not. 

Before choosing and installing a solar inverter or any solar component in Australia, make sure that the component has the approval and is present in the approved list of the Clean Energy Council. 

The cost of the solar inverters is also a deciding factor when it comes to choosing a solar inverter. Not all cheap solar inverters are bad, and not all expensive solar inverters are the best. Do not buy a solar inverter by solely considering the price of the component. Make sure you check for all the other factors mentioned above before finalising your decision. 


A great part of the solar power system depends on the quality of the solar inverter you install. Installing a low-quality solar inverter will not only downgrade the system performance, but it will also make your money go to waste. Consider the factors mentioned above thoroughly before you choose a solar inverter. It is better to ask for recommendations from a trustworthy and reliable solar installer.

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