The rapid expansion of the photovoltaic solar system market has resulted in a significant increase in waste generated during installation, presenting a substantial environmental challenge. In response, the adoption of environmentally sustainable materials from various industries can play a crucial role in mitigating the effects of the ongoing climate crisis. This study explores the use of plastic polymer-based materials, including recycled and nanomaterials, for supporting photovoltaic solar panels. A preliminary structural design was subjected to static analysis, which facilitated the identification of a mechanically appropriate material for topological optimization. This optimization process led to a reduction in material usage and the proposal of three alternative support models. Among these, structures featuring hexagonal perforations demonstrated enhanced mechanical properties, achieving a mass reduction of up to 17.89%. The results of this study underscore the potential for incorporating recycled materials in the design of structural supports for photovoltaic solar panels, offering a viable pathway toward more sustainable photovoltaic infrastructure.