Quick Answer
You can expect a 5-10 year warranty for inverters, with some manufacturers offering up to 15 years. The warranty typically covers parts and labor for defects and failures. Some manufacturers may also offer extended warranties or maintenance plans.
Warranty Types for Inverters
When selecting an inverter, look for manufacturers that offer comprehensive warranties. Inverter warranties can be categorized into three main types: standard, extended, and premium. Standard warranties typically cover parts and labor for defects and failures for a specified period, usually 5-10 years. For example, a standard warranty for a solar string inverter might cover parts and labor for defects and failures for 5 years or 50,000 hours of operation.
Factors Influencing Warranty Duration
The warranty duration for inverters is influenced by several factors, including the inverter’s design, build quality, and manufacturer reputation. Manufacturers that produce high-quality inverters with advanced technology and robust designs tend to offer longer warranties. Additionally, inverters that have undergone rigorous testing and certification, such as UL (Underwriters Laboratories) or CE (Conformité Européene), may also come with longer warranties.
Microinverters vs. Solar String Inverters
When it comes to warranties, microinverters and solar string inverters differ slightly. Microinverters, which are typically more expensive than solar string inverters, often come with longer warranties, sometimes up to 25 years. This is because microinverters are designed to be more modular and easier to replace, reducing the risk of costly repairs. Solar string inverters, on the other hand, may have shorter warranties, but they are often cheaper and easier to install.
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