Realty of Solar Panel Warranty 10 Year vs 30 Year | Watch before buying Solar Panels

Types of Solar Panel Warranties
Many home appliances have a basic warranty that offers you a free replacement during a specified period. Solar panels are covered by different types of warranties, which protect you from several issues.
Product Warranty
The product warranty replaces your solar panels for free if they malfunction due to material or workmanship defects. The coverage period varies depending on the brand and specific product, but the solar industry standard is 10 years or more. The best warranties offer 25-year coverage, and you can get them from leading brands like SunPower and Q Cells.
As a bare minimum, you should look for a warranty that offers coverage against panel failure for at least 10 years. We at the Marketwatch Guides Team recommend solar panels with a 25-year product warranty, since there are now several brands who offer this benefit.
Power Warranty
Power warranties are also known as performance warranties, and they are offered with renewable energy equipment such as solar panels and wind turbines. Photovoltaic (PV) cells gradually lose performance, and this means the amount of electricity generated will decrease slightly each year. However, a power warranty ensures that this will happen at a very slow rate.
Solar panel manufacturers specify a maximum degradation rate, and the power warranty covers you if they deteriorate faster.
For example, if your manufacturer specifies a performance loss of 0.50% per year, and your solar panels start to lose 1% of their productivity per year, the performance guarantee comes into effect, and you get a replacement.
Power warranties are generally longer than product warranties, and most manufacturers offer 25 to 30 years. A high-quality panel loses around 2% to 3% productivity during the first year, and then less than 0.50% per year. This means the best solar panels can generate at least 85% of their initial electricity output after a 25-year period.
Ideally, you should look for a solar panel performance warranty with the following conditions:
No more than 2% to 3% degradation during the first year
No more than 0.50% degradation during the following years
25 to 30 year coverage against loss of productivity
Some solar manufacturers will guarantee a degradation rate as low as 0.25% per year, and a performance warranty period of up to 30 years.
Installation Warranty
The best solar companies offer homeowners an installation warranty of their own.
The manufacturer’s warranties only protect you from issues related to the solar panels themselves: material defects, workmanship defects and loss of power output.
The solar installation warranty offers additional protection, covering your photovoltaic system as a whole.
This includes issues related to other components such as racking and wiring.
Most solar brands are dedicated exclusively to manufacturing, and they delegate installation services to approved contractors. However, companies such as SunPower and Tesla also offer their own installation services. In these cases, you may get an integrated warranty with full coverage: product, performance and installation.
Solar installation warranties can range from around five years up to 25 years. Generally, you get the best warranties when you hire installation companies who are certified by the solar brands they represent. You can also get long warranties from solar manufacturers who offer their own installation services.
Realty of Solar Panel Warranty 10 Year vs 30 Year | Watch before buying Solar Panels #solarpanel

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[@techmansukhpal]

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