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If you're considering purchasing solar panels, it's important to understand what warranties apply to the products you're buying. In the solar industry there are different types of guarantees that you as a customer have to take into account.

Types of guarantees

In this article, we will discuss the main warranty types, namely product warranties, linear yield warranties, legal warranties, and the ability to extend warranties under certain conditions.

  1. Product Warranties: Product warranties protect you against defects or damage to the solar panels you purchased. This warranty period usually ranges from 10 to 25 years, depending on the manufacturer. If a defect occurs during the warranty period, the manufacturer will cover the cost of repair or replacement. It is important to check whether the warranty covers the full cost of replacement and installation, or whether any restrictions apply.

  2. Linear output guarantees: In addition to product warranties, many manufacturers also offer linear yield guarantees for their solar panels. This guarantee guarantees that the yield of the panels will not decrease too much over time. For example, a manufacturer may offer a 25-year straight-line yield guarantee that guarantees that the panels will retain at least 80% of their original output. If the yield drops below this level, the manufacturer will rectify the problem, either through repair or replacement.

  3. Legal guarantees: In addition to the guarantees offered by the manufacturer, customers in the Netherlands also have legal guarantees on their purchases. According to Dutch law, a product must meet the expectations that you may reasonably have. If you buy solar panels and they show defects within a reasonable period of time after purchase, you are entitled to a free repair, replacement or refund.

  4. Extendability of warranties under certain conditions: Some manufacturers offer the possibility to extend warranties under certain conditions. This can be done, for example, by purchasing a warranty extension package. It is important to carefully research the terms and cost of the warranty extension before deciding to use it.

Our role in

However, we would like to point out that as a customer of our webshop, we do not offer product guarantees ourselves and that you must submit any warranty claims directly to the manufacturer. Following are some key points from our terms and conditions (clause 12) regarding warranties:

  1. Product guarantees: We as a webshop do not offer product guarantees. These guarantees are provided exclusively by the manufacturer of the solar panels. If you want to make a warranty claim, you must contact the manufacturer directly. Any warranty claims must be submitted in accordance with the manufacturer's applicable warranty procedure. Make sure that you report the problem in writing within 5 days of discovering a defect.

  2. Warranty claims: While we do not provide warranties, we can support you in communicating with the manufacturer in case of warranty claims. We can only provide assistance if you have strictly followed the manufacturer's installation instructions. Please note that we cannot be held responsible for any obligations arising from the manufacturer's warranty.

  3. Factory Warranty Exclusions: It is important to note that certain conditions are excluded from the factory warranty. These include color differences of the products, network errors, damage caused by external factors such as fire, flood, lightning, war, vandalism and misuse of the products. Refer to the manufacturer's warranty terms for a full list of exclusions.


When purchasing solar panels, it is important to understand the warranties that apply to the products. Although we do not offer product guarantees as a webshop, we are ready to support you in submitting warranty claims to the manufacturer. Always refer to the manufacturer's warranty terms for specific details and limitations. If you have any questions about guarantees, please do not hesitate to contact us.

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