23/04/2026
may be more vulnerable to UV degradation than many models have assumed.
While most performance models focus on heat, moisture, and mechanical wear, exposure is emerging as an increasingly important factor in how solar panels degrade over time. Recent research suggests current testing and lifespan models may not always capture real-world UV conditions well enough, especially for some newer photovoltaic technologies.
Constant exposure to ultraviolet radiation can slowly break down materials within the panel, affecting encapsulation layers and backsheets, weakening durability, and contributing to performance loss over time.
This is important because solar energy systems are designed with long lifespans in mind, often around 20 to 30 years. If degradation accelerates earlier than predicted, it affects energy output and long-term return on investment.
For large scale solar deployments, even small shifts in lifespan assumptions can translate into significant economic and operational consequences.
The focus is now shifting toward better material design and more accurate lifespan modeling, where environmental factors like UV are treated as major variables rather than secondary ones.
