Conclusion
Photovoltaic Electricity. Principles

Today, photovoltaic solar energy stands as a key pillar of the global energy transition. In the face of pressing climate challenges, it offers a viable and sustainable alternative to fossil fuels, whose environmental impact continues to grow. Indeed, solar radiation is an inexhaustible and clean source of energy capable of meeting a significant portion of the world’s energy needs.

Despite having reached a certain level of maturity—particularly with silicon-based modules—numerous technological advancements are underway or being developed in laboratories and companies. Examples include high-efficiency silicon cells featuring new structures (such as TOPCon or heterojunction cells) that generate more electricity from the same surface area, or the upcoming tandem cells, which stack two materials (perovskite on silicon) to capture more light, with potential efficiencies exceeding 33% (compared to...