As part of the Italian project CANVAS, a new study published on the Solar RRL Journal aimed to develop a robust predictive model to evaluate the electrical performance of colored photovoltaic (PV) modules, facilitating their seamless integration into building designs without compromising energy efficiency.

The ability to accurately predict PV module performance based on the optical properties of colored layers addresses a critical need in the BIPV industry. It significantly reduces the time and resources required for prototype development, enabling rapid optimization of both aesthetic appeal and energy generation efficiency. This capability is particularly valuable as it empowers architects, designers, and manufacturers to create visually appealing solar solutions without sacrificing performance.

The research encompassed experimental analysis, model development, and validation. The authors conducted detailed measurements of the optical and electrical properties of PV cells integrated with various colored layers, including absorptive, diffusive, and fluorescent films. Using this data, they developed a predictive framework capable of simulating short-circuit currents and spectral responses. The model was rigorously tested and validated with different materials, ensuring its reliability and applicability across a wide range of color-rendering technologies.

"This research addresses one of the most critical challenges in colored BIPV: achieving a balance between aesthetic appeal and energy efficiency. This work introduces a predictive model that not only evaluates the visual impact of colored layers but also quantifies their effect on electrical output with high accuracy. The model is applicable to diverse coloring technologies, including absorptive materials, diffusive layers, and fluorescent films. Notably, fluorescent films offer the potential to mitigate efficiency losses by re-emitting absorbed light toward the photovoltaic cells. By significantly reducing the reliance on trial-and-error in prototyping, the model enables faster and more cost-effective optimization of colored PV modules, advancing both the aesthetic and functional integration of solar energy in building applications" explains Martina Pelle first author of the scientific article.

Here the scientific article