Hydrogen is a rich, green, and low-carbon secondary energy source, which is an important trend in the next energy revolution. China is a solid foundation for large-scale hydrogen production and commercial applications, but faces challenges such as rising costs and increased carbon dioxide emissions. For example, the purpose of this article is to address the issues of high hydrogen production costs and increased carbon emissions in the development of the hydrogen industry. Studied and analyzed are the optimal photothermal performance, hydrogen production system, thermal photocondensation, and hydrogen production system. The maximum power point monitoring algorithm was used to understand the thermal performance and hydrogen production system, and the results showed that the system can achieve high energy conversion and hydrogen production efficiency under appropriate working conditions, while ensuring system safety. We evaluated the performance of a BIM hydrogen production system that regulates the circulating water temperature and found that the system used in this study has the highest energy conversion efficiency and the ability to produce hydrogen under appropriate working conditions. In this study, optical simulations were conducted on the hydrogen production system, and it was found that the flow mode of cooling water has significant advantages in energy conversion efficiency and system stability. By comparing the performance of different systems, this study indicates that it provides a new method and simulation results for the development of renewable energy hydrogen production, and also contributes to the development and application of hydrogen technology. The study of this system will make significant contributions to the future of the energy revolution.