
How Long Do Solar Panels Actually Last? What Texas Property Owners Need to Know
Oct 24, 2024
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As Texas basks in abundant sunshine, property owners are increasingly turning to solar panels to harness this natural resource. However, a key concern remains: how long do solar panels actually last? In this post, we will discuss the lifespan of solar panels, the factors that affect their durability, and what you need to know before investing in solar energy for your property.
So...How Long Do Solar Panels Last?
Solar panels are engineered for durability, with an average lifespan ranging from 25 to 30 years. Factors like material quality, installation methods, and local weather conditions can cause variations in this timeframe. Most manufacturers back this up with warranties, often ensuring that panels will maintain at least 80% of their energy production after 25 years. While panels might still work beyond this point, their efficiency may decline.

Factors That Affect Solar Panel Longevity
When exploring the lifespan of solar panels, consider these critical factors:
Quality of Materials: The durability of solar panels often corresponds with the quality of materials used. For example, a study found that high-efficiency panels can produce 10-15% more energy over their lifetime compared to lower-quality counterparts. Customers from Stephens Solar Solutions have sent us their electricity bills with a negative balance owed. This indicates to us that investing in certified panels can be a smart long-term choice for Texas property owners.
Installation Quality: The quality of installation plays a crucial role in the performance and lifespan of your solar panels. If installed incorrectly, it can result in misalignment, inadequate sealing, or improper mounting, leading to reduced efficiency and an increased risk of early damage to the system.
Weather Conditions: Texas experiences extreme weather, from scorching summer heat to occasional hailstorms. The Texas sun is strong and UV radiation will degrade the panel materials over time. Choosing panels rated for extreme conditions can enhance longevity. In hail-prone areas like Texas, it's essential to invest in high-quality solar panels that can withstand extreme weather conditions. We recommend opting for top-tier panels with a UL 61730 rating, such as those provided by our supplier, Mission Solar Energy. These high-impact panels are built to withstand hail, with a Hail Safety Impact Velocity of 25mm at 23 m/s (about 51 mph).
Maintenance: Regular maintenance can greatly extend the life of your panels. The National Renewable Energy Laboratory (NREL) states that factors like dirt, debris, and other contaminants can affect solar panel output. Maintaining clean panels can help minimize efficiency losses.
The Importance of Warranties
When investing in solar panels, understanding warranties is vital. Most reputable companies provide performance warranties lasting up to 25 years, ensuring a certain level of energy production. Additionally, a service warranty typically spans 5 to 10 years, covering defects in materials and workmanship. As the demand for solar energy rises in Texas cities like San Antonio, it's wise to compare warranties among various options such to ensure you select a reliable product.
Are Solar Panels Worth It?
Property owners may question whether investing in solar panels offers good returns. Consider the following advantages: