How do you assess the environmental and economic impacts of solar panel degradation?

My experience on this highlights that the environmental and economic impacts of solar panel degradation extend far beyond mere efficiency loss. As panels degrade, their reduced energy output not only translates to diminished returns on investment but also affects the overall sustainability of renewable energy goals. Understanding these impacts is crucial, as even slight degradations can ripple through economic projections and environmental benefits, ultimately shaping the future of solar energy.

La literatura indica tasas de degradación del 0,5% anual en general. Pero se han observado plantas fotovoltaicas que al primer a?o tienen un redimiento del 87%

14% es el promedio habitual de pérdida de un sistema fotovoltáico producto de todos los periféricos utilzados (cables, conectores, etc)

Es un factor que disminuye en relación a la degradación natural de los paneles solares. Debe estar permanentemente monitoreado

La vida útil de un panel solar con una degradación declarada promedio de 0,5% anual es de 20 a 25 a?os. Lo interesante es que al final de su vida útil, siguen generando energía, y así un panel de 450W, puede generar 360W y más. Es por ello que hoy se estan haciendo estrategias de reutilización de paneles solares para una segunda vida útil

Ultraviolet (UV) exposure is a well-documented cause of solar panel degradation. Over time, the protective coating on the photovoltaic cells can break down, allowing harmful UV rays to damage the semiconductor layers. In a coastal project I oversaw, where panels were exposed to higher UV radiation levels due to saltwater reflection, I noticed an accelerated degradation rate. By investing in panels with higher-quality UV-resistant coatings, we managed to extend their operational efficiency by 25% over their expected lifespan, providing a much higher return on investment for the project.

Es importante considerar que como todo elemento industrial, éste alarga su vida útil con la mantención. Pero si aún así, en el caso de las plantas fotovoltaicas, es necesario considerar un repowering de la planta cuando su pérdida de generación es muy alta. El repowering, consiste en mejorar la generación con el cambio de paneles, inversores, conectores, etc.

Assessing the impacts of solar panel degradation involves a multifaceted approach. Environmentally, I’d conduct a life cycle assessment to evaluate emissions and resource use throughout the panel’s lifespan. Economically, I’d analyze cost-benefit ratios, considering repair and replacement costs against energy output losses. I’d also examine market trends for panel longevity and efficiency. This comprehensive analysis helps in understanding the full scope of degradation effects on both the environment and the economy.