How Long Do Solar Panels Last in Perth

How long do solar panels last in Perth - Using solar panels is a cost-effective way to produce your own electricity. How long do solar panels last in Perth? Although solar systems are currently affordable in Australia, they are still a significant investment, so it's understandable that homeowners would want to know how long their solar panels will last. This blog will attempt to answer that issue by taking into account the various factors that can shorten or lengthen the lifespan of your panels.

How Long Do Solar Panels Last in Perth

It's no surprise that solar panels are so popular that the world is focusing on ways to reduce energy use and reduce their carbon footprint. A clean source of electricity, solar panels have few moving components and little impact on the environment. How long solar panels last is a common concern among Australians considering installing them to generate their own solar power. At TDG Solar we can provide you with the answer to this question.

How long is the lifetime of solar panels in Perth, Australia?

Solar panels typically have a lifespan of 25 years. Depending on the brand, type, and build quality, solar panels deteriorate between 0.5% and 2% per year. Accordingly, the life of solar panels in Australia is 20-30 years. The most important things to keep in mind are to check your panels regularly for signs of damage and make sure they are of good quality and have been installed by a competent installer.

Factors Affecting The Lifespan Of Solar Panels In Perth

Here are some important aspects to keep in mind when determining How long solar panels last in Perth:


Thermal cycling - The material will expand and contract in response to changes in temperature, particularly between day and night. Thermal cycles are these changes in temperature, and they put stress on the joints and gradually wear them down over time.

Wind - The wind is a double-edged sword in that it can flex the panels, causing damage over time, even as it helps keep the panels cooler during hot days for greater efficiency.

Humidity - Humidity from the environment and ambient temperature can cause electrochemical reactions resulting in corrosion and electrical damage in regularly hot and humid places such as the Northern Territory and Queensland.

Panel Quality

The overall quality of your solar panels is affected by a variety of factors. The brand, dependability, and effectiveness of each panel are all good indications of how long it will last. This can include wiring that is superglued, substandard connections, improperly soldered joints, and subpar components.


By choosing a professional installer who specializes in solar PV systems, you can be sure that your panels will be properly connected. An ideal system to meet your needs will be recommending to you by an experienced company that has been in business for at least a few years.


A system with regular maintenance will live longer. By performing regular checks on your solar panels, you can identify potential problems such as loose racking, exposed wiring, and other potential problems early on. In addition to your solar panels, roof racking systems, and solar inverters 

How long do solar panels last in Perth, Australia?

According to the latest National Renewable Energy Laboratory data, modern solar panels degrade at a rate of about 0.5% per year, down from 0.8% in 2012. So a solar panel bought today will be able to generate about 90% of the electricity. Did when it was new after 20 years of use.

Solar panel manufacturers usually provide guarantees of at least 25 years. Panels can last up to 30 years if the system is new or well-built. Therefore, it is safe to predict that a high-quality polycrystalline or monocrystalline panel will last an average of 25 to 30 years. However, this can change depending on a number of variables.


There is no simple answer to the question of how long solar panels last and when you should replace them. The longevity of your system depends on many factors, including the quality of the product, how it was built, how it was maintaine, the climate where it was install, and more. You must remember that you get what you pay for. If You can request up to three free quotes from reputable local solar contractors. You can start saving tons of money on your energy costs right away; It won't take long at all.

Contact Details


Address – 1/48 Vinnicombe Drive, Canning Vale WA 6155 Perth

Phone number – 1300TDGSOL (1300 834 765)

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