Investigadores concluyen que las plantas fotovoltaicas con seguidores experimentan una degradación por UV superior a las que usan estructura fija
Why it matters: Reevaluate tracker ROI calculations to account for potential UV degradation impacts on long-term performance.
Why This Matters for European Solar Installers
This research from UNSW reveals a critical operational trade-off that European installers must now factor into system design and warranty calculations. While trackers typically deliver 15-25% more annual energy yield in Southern Europe, this study suggests they may experience accelerated UV degradation that could impact long-term performance guarantees and maintenance costs.
Market Context & Implications
Tracker adoption has been growing steadily across Southern Europe, particularly in Spain, Italy, Portugal and Greece where irradiance levels justify the additional CAPEX. However, this research introduces a new variable to the ROI equation. Installers who've been promoting trackers primarily on yield enhancement now need to consider potential degradation differentials that could affect LCOE calculations over 25-year system lifetimes.
The Mediterranean climate presents a particular challenge - high UV exposure combined with tracker movement creates what researchers call a "double exposure" effect. This could mean faster-than-expected degradation of backsheets, encapsulants, and even cell coatings in tracker systems.
What Solar Businesses Should Watch For
This research doesn't mean abandoning trackers - but it does require more sophisticated system design. The smart approach will be to balance the yield benefits against potential degradation costs, possibly through hybrid solutions or advanced material specifications.