Ensuring the heating of energy-efficient buildings using renewable energy sources, particularly solar energy, is a key challenge for modern energy systems. Due to the limited space for solar collectors, a promising solution is the integration of solar heaters into the construction process of buildings, such as walls and facades. This article presents the results of a study on a hybrid heating system based on a solar collector that combines thermal and electrical energy production. A computer model of the system was developed using the SolidWorks software suite. The system consists of a hybrid solar collector, a thermal accumulator, a heat source, and pipelines. The operation of this system was simulated under various operating conditions, and graphs of temperature and thermal power variations in the solar collector and thermal accumulator were obtained. The research aims to analyze the efficiency and optimize the design of the hybrid solar collector to ensure maximum thermal comfort and energy savings. The modeling results demonstrated that the hybrid heating system can achieve significant energy savings. It was established that the system’s efficiency depends on the design of the solar collector, the volume of the thermal accumulator, and the operational parameters of the heat source. The obtained results can be used for the design and optimization of hybrid solar heating systems for residential and public buildings, as well as industrial facilities. Future research may focus on developing more efficient designs for hybrid solar collectors and thermal energy storage systems.