Switching to solar energy is a fantastic way to reduce your electricity bills and carbon footprint. But a common question for homeowners in Western Australia is, "How long do solar panels last?" Understanding the lifespan of solar panels can help you make an informed investment in your home's energy future

TYPICAL LIFESPAN OF SOLAR PANELS

Most solar panels come with a performance warranty of 25 years. However, this doesn't mean that the panels stop working after 25 years. It simply means that the manufacturer guarantees that the panels will operate at a certain efficiency level (usually around 80% of their original efficiency) for that period. Many panels continue to produce electricity well beyond 25 years, although this would be at a reduced efficiency.

FACTORS AFFECTING A SOLAR PANEL’s LIFESPAN

Several factors can influence how long your solar panels will last and how efficiently they will perform over time:

Quality of Solar Panels: Higher quality panels generally have longer lifespans. Investing in reputable brands can ensure better durability and performance.
Installation: Proper installation is crucial. Panels that are securely mounted and well-ventilated will last longer. Poor installation can lead to issues like water damage or inadequate support, which can shorten the lifespan of your panels.
Climate: Western Australia's climate is generally favourable for solar energy, but extreme weather conditions can affect panel longevity. High temperatures, hailstorms and strong winds can cause wear and tear on your panels.
Maintenance: Regular maintenance helps ensure that your panels remain efficient. Keeping the panels clean and inspecting for any damage can prevent small issues from becoming major problems.
Degradation Rate: Over time, all solar panels experience a gradual decline in efficiency. The average degradation rate for quality solar panels is about 0.5% per year. This means that after 25 years, they should still be operating at around 87.5% of their original capacity.

HOW TO EXTEND THE LIFE OF YOUR SOLAR PANELS

While solar panels are generally low maintenance, there are a few things you can do to help maximise their lifespan and efficiency:

Regular Cleaning: Dust, dirt, and bird droppings can reduce the efficiency of your solar panels. Cleaning them regularly, especially in dusty areas, helps maintain their performance.
Inspections: Have a professional inspect your solar panel system annually. They can check for any issues such as loose wiring, damage or shading problems that might affect performance.
Monitoring Systems: Modern solar installations come with monitoring systems that allow you to track the performance of your panels. This can help you detect and address any issues early on.
Protective Measures: If you live in an area prone to severe weather, consider installing protective measures such as wind barriers or hail guards to shield your panels from damage.

CONCLUSION

Understanding how long solar panels last and the factors that affect their lifespan can help you make the most of your investment in solar energy. With proper care and maintenance, your solar panels can provide clean, renewable energy for many years, contributing to both cost savings and environmental benefits.

If you’re ready to explore solar energy further, contact Millennial Power Group for a consultation.

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