How long do Photovoltaic solar panels last?

One question that we get asked a lot is “how long will my Photovoltaic solar panel last?”. This is a fair question and important factor that may influence your decision to install photovoltaic solar panel on your home. PV panels are a sizable investment. So, if they were to break after a few years it probably wouldn’t be worth it. Most solar panels tend to last 25-30 years without loss of efficiency. However that number could be extended or shortened by a variety of factors. So, let’s look at some of the factors that can affect the lifespan of one’s photovoltaic solar panel.


If photovoltaic solar panel are subject to extreme weather conditions, their lifespan can be dramatically shortened. However, this is typically not a concern in New Zealand. It is rare for the majority of the country to experience heavy snowfall, tropical storms, or dramatic changes in temperature. Therefore, in New Zealand you can expect the weather to not significantly impact the lifespan of your photovoltaic solar panel.

Maintenance of Photovoltaic Solar Panel

You can’t control the weather, but you can control the level of care your photovoltaic solar panels receive. Throughout the year things like dust, debris, pollen and dirt can accumulate on the surface of your panels. Regularly hosing down your panels can allow them to output their maximum power year round and extend their life.

It is also important to have your panels serviced every few years by a specialist. A quick check for any damage from weather or birds can ensure your panels stay in top shape for the duration of their life. 

Call the Photovoltaic solar panel specialists

Photovoltaic solar panels tend to be pretty low maintenance, as they have no moving parts. Keeping your panels clean and staying aware of their physical condition is all that is needed to ensure you get the entire 25-30 years.

If you are interested in installing photovoltaic solar panels then give us a call at 0508 449 274 or contact us online. We are happy to offer you a custom solution to fit your needs.