How Long Does a Solar Inverter Typically Last?


Solar inverters function as a brain component of the entire component system, It is a central unit that utilises the sun energy into usable energy. However, unlike solar panels which lasts optimally for decades, these units have a relatively finite lifespan.  

In this article, we will cover how much do inverters typically last, types you can find and their lifespan.

How Do They Operate?

Think of these inverters as the middleman, the operational unit.

Solar panels absorb DC (Direct Current) from the panel modules. This is the raw sun energy which can’t be utilised yet. The DC electricity produced by the solar panels is then sent to the unit for conversion to alternating current (AC) electricity that can power household appliances and be fed into the electrical grid. 


Many modern units are equipped with advanced monitoring capabilities that allow homeowners and system operators to track the performance of their solar energy system in real-time. This monitoring can help identify any issues or inefficiencies in the system as well.

Typical Lifespan of Solar Inverters

Inverters are devices that use a small percentage of the power from deep-cycle batteries to change Direct Current (DC) into Alternating Current (AC), which is then usable in homes and businesses.


Solar Inverters typically last between 10 to 15 years, maximum till 20 years although this can vary depending on factors such as the quality of the inverter, its usage, and environmental conditions. It’s important to note that while some specific units may last longer than others, most manufacturers offer warranties ranging from 5 to 12 years, providing some assurance of performance and durability.


If you are looking to get more information, you should contact trusted sellers of Solar inverters in Sydney. There are also additional benefits such as Government rebates and Flexible payment plans available on your investment.

What Capacity of a Solar Inverter Do You Need for Your Residential System?

The capacity of your inverter should match or slightly exceed the total wattage capacity of your solar panels. For example, if you have a 5 kW (5000 watts) solar array, you’ll want an inverter with a similar capacity, such as a 5 kW inverter.

Inverters typically operate at around 95-98% efficiency, meaning they can convert 95-98% of the DC electricity from the panels into AC electricity. You may need to adjust the inverter size to account for this efficiency loss.


Lifespan Depending on the Types of Inverters

There are several types of inverters available in the market, you can inquire more about them through any solar company in Sydney. Here is a short overview of them – 

String Inverter 


String inverters are the most common type used in solar systems and are widely available through different brands. It is often used in small residential setups as it can comfortably handle around 5-10 panels and convert the current optimally. They are a cost effective solution and easy to install and operate.



Microinverters are tiny in size and are attached to every single module individually. The function in parallel circuit, so if one malfunctions unexpectedly, it won’t disrupt the operation of others. They are known for better longevity and are often durable if maintenance is carried regularly.

Hybrid Inverters 


Hybrid Inverters combine the capabilities of a microinverter and battery chargers in one single unit. They are designed to work with battery storage systems, allowing homeowners to store excess solar energy for use during periods of low sunlight or high electricity demand.


Here’s a rough estimate of the lifespan of inverters –

Type of Inverters 

Lifespan Estimate 

String Inverters

5-13 Years


15-25 Years

DC optimisers

20-25 Years

Hybrid Inverters

10-15 Years

*Note that the lifespan of a solar inverter depends on various factors, including its type, quality, usage, and environmental conditions.


A ballpark range of any solar inverter would be 10-15 years on average, lower than that of solar panel modules. Ensure you get ideal warranties so that your maintenance remains intact and you can possibly use them optimally till it lasts. 


Looking for the best residential solar Penrith service? Our CEC (Clean energy council) certified installers will help you select the ideal system package suitable to your needs. The best part? Avail easy and flexible payment plan options, tap into Government rebates and get additional workmanship warranty to all our installations. Contact us today to submit your inquiry and receive a free quote today! 

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