How Long Do Solar Panels Last? Lifespan & Warranty Info For Kent Homeowners

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25th Oct 2024

If you’re considering solar panel installation in your Kent home, you’ve probably wondered how long they last. After all, solar energy isn’t just an eco-friendly choice; it’s an investment.

Understanding the lifespan and warranties of solar panels can help you make an informed decision. Let’s explore what homeowners can expect when partnering with a reliable solar panel company in Kent.

How Long Do Solar Panels Last?

On average, solar photovoltaic panels (or solar PV panels) last between 25 and 30 years. However, this doesn’t mean that your panels will suddenly stop working after this period. Instead, solar panels experience a gradual decline in efficiency over time.

By the end of their “official” lifespan, solar panels generate green energy at around 80% of their original capacity. This means they can continue producing electricity well beyond 30 years, even if the output isn’t as strong as when they were first installed.

SunPower panels are designed to produce 60% more energy over 25 years compared to other leading manufacturers. This refers to the total amount of electricity generated over that period, not just their capacity at a specific point in time.

Factors That Influence Solar Panel Longevity

While solar panels are built to last, knowing what affects their durability can help you make informed choices and better maintain your system:

• Panel quality: The construction materials and technology used in solar panel installations can significantly impact how long they last. For example, SunPower panels are known for their high-quality build and innovative technology, which contribute to their impressive performance.
• Installation quality: Proper installation is crucial for maximising your panels’ lifespan. Poor installation could lead to issues such as electrical faults or structural damage, which can affect panel performance. That’s why it’s vital to hire experienced solar panel installers who understand the local conditions in Kent, like our team of professionals.
• Weather conditions: Kent’s moderate climate generally benefits solar panel performance, but factors like hail, heavy rain, or high winds can impact longevity. Fortunately, solar PV systems are designed to withstand various weather conditions, including harsh ones. Investing in renewable energy solutions with durable materials can reduce weather-related wear and tear.
• Regular maintenance: Solar panels require minimal maintenance, but keeping them free of dust, leaves, and other debris helps maintain efficiency. Regular professional check-ups can ensure that any small issues are resolved before they become bigger problems.

Solar Panel Warranties Explained

When choosing solar PV panels, it’s important to understand the different types of warranties available, as these offer a guarantee of performance and protection over the long term. Typically, solar panels come with two main warranties:

• Performance warranty: This type of warranty ensures your solar panels will still produce a certain percentage of their original output over a set period. Most manufacturers guarantee at least 80% efficiency after 25 years, ensuring you get a good return on your investment for decades.
• Product warranty: The product warranty covers any defects in materials or workmanship, typically lasting between 10 to 25 years. A longer product warranty is often a sign of quality, reflecting the manufacturer’s confidence in the durability of their panels.

However, we aimed a little higher. Our SunPower panels stand out with its Complete Confidence Panel Warranty, which includes an industry-leading 40-year coverage for power, product, and service.

How Does Solar Panel Degradation Work?

Solar panel efficiency decreases at a rate known as degradation. The average degradation rate is about 0.5% to 1% per year. This means that after 20 years, your panels would still operate at approximately 80-90% efficiency. However, premium panels often degrade at a slower rate, retaining more of their efficiency over time.

Kent homeowners can expect the rate of solar panel degradation to be on the lower end, thanks to the area’s mild climate. However, solar panels installed by a well-established company in Kent will ensure you receive solar energy that can resist degradation effectively.

When To Consider Replacing Solar Panels

Although solar panels can last well beyond their official lifespan, there are situations when replacing them may be necessary or more economical:

• Significant decline in performance: If you notice a considerable drop in solar power that can’t be improved by maintenance or cleaning, it may be time to consider new panels.
• Physical damage: Panels can suffer damage from extreme weather or accidents. If repair isn’t viable, replacing your solar panel system might be the best option.
• Inverter replacement: The inverter, a key component in your solar system, typically needs replacing every 10 to 15 years. If you’re considering upgrading your inverter, it may be an opportune time to also evaluate the overall performance of your panels.

Partnering With A Trusted Solar Panel Company In Kent

Choosing the right solar panel company in Kent can make all the difference in getting the most out of your solar investment. A reputable company will guide you through every step, from selecting the right panels to ensuring a quality installation and offering long-term maintenance support.

The Future Is Bright For Solar Energy In Kent

Installing solar panels is a long-lasting and financially savvy option for Kent homeowners who want to embrace renewable energy while reducing energy bills and their carbon footprint.

With an average lifespan of 25 to 30 years and possibly beyond, solar panels represent a lasting commitment to sustainability. As you consider your options, remember that a well-maintained solar system can provide reliable energy production for decades, allowing you to reap the benefits of your investment.

If you’re ready to install solar PV systems for your home, contact The Little Green Energy Company today. With our expertise—and 5-star customer reviews—we’re here to help you find the ideal solar solution tailored to your needs. Let us guide you towards a sustainable, energy-efficient future in Kent.