Understanding Linear Performance Warranty on Solar Panels

Engineer in a white helmet. Man near solar panel.

Solar panels have become an increasingly popular choice for homeowners and businesses looking to harness clean and renewable energy. 

When considering solar panel options, you’ll likely come across the term “linear performance warranty.” But what exactly does this mean, and how does it affect your solar panel investment? 

What Is a Linear Performance Warranty?

A linear performance warranty is a guarantee offered by solar panel manufacturers that specifies how the energy output of their panels will degrade over time. It assures customers that the panels will maintain a certain level of efficiency for a predefined period. This warranty is essential because it provides you with a clear understanding of how your solar panels will perform throughout their lifespan.

Key Elements of a Linear Performance Warranty

Degradation Rate: Solar panel manufacturers typically specify a degradation rate, usually expressed as a percentage. This rate indicates how much the panel’s efficiency will decrease each year. Common degradation rates range from 0.3% to 0.8%. A lower degradation rate means slower efficiency loss.

Warranty Duration: The linear performance warranty usually covers a specific number of years, often ranging from 25-30 years. Make sure to check the warranty duration for the panels you’re considering.

How Does It Benefit You?

Performance Assurance: A linear performance warranty provides assurance that your solar panels will maintain a certain level of efficiency over the years. This ensures that your investment in solar energy continues to pay off.

Predictable Savings: With a clear understanding of how your solar panels will perform over time, you can more accurately predict the savings and energy production of your solar system.

Investment Protection: Solar panels are a significant investment. The linear performance warranty helps protect this investment by offering coverage for an extended period.

Tips for Evaluating Linear Performance Warranties

Degradation Rate: Look for solar panels with lower degradation rates, as they will maintain efficiency better over time. Compare the degradation rates offered by different manufacturers.

Reputable Manufacturers: Choose solar panels from well-established and reputable manufacturers known for honouring their warranties. At Solar Select, we pride ourselves on providing the perfect solar solution for your residential or commercial premises. 

Document Everything: Keep a record of your solar panel installation, maintenance, and performance data. This documentation will be valuable if you ever need to make a warranty claim.

Understanding the concept of a linear performance warranty is essential when considering solar panels. It provides you with a clear picture of how your panels will perform over time, helping you make an informed decision and protect your solar investment. 

When selecting solar panels, we’ll be sure to advise you of the degradation rate and warranty duration to ensure you choose panels that best suit your energy needs and long-term goals. By doing so, you can enjoy the benefits of clean, renewable energy for decades to come. Get in touch with the team to find out more.