The article discusses the urgent need for green energy solutions to combat the greenhouse effect, with a focus on hydrogen as a zero-carbon fuel with high energy density. Researchers are exploring innovative approaches like using photovoltaic devices for water electrolysis to efficiently produce hydrogen from solar energy, addressing limitations in energy storage. Different methods of integrating photovoltaic devices for hydrogen generation are highlighted, emphasizing the need for cost-effective and environmentally sustainable practices. Various studies propose novel techniques involving nanotechnology and specific device configurations to streamline systems and improve efficiency. Challenges like high costs and material selection are identified, with ongoing research aiming to develop simplified, standalone systems for widespread adoption of photovoltaic hydrogen production.