Design, Control and Simulation of a Geothermal and Solar Generation System Integrated with Hydrogen Storage and PEM-FC

Geothermal and solar energy have become two of important renewable energy sources for power generation in the context of carbon reduction and carbon peaking. In order to improve the power supply stability and peak shaving ability of the system, a geothermal and solar-powered renewable generation system integrated with a proton exchange membrane fuel cell (PEMFC) is designed and analyzed. The system includes both hydrogen production, storage, and generation processes to overcome the intermitted shortcoming of renewable energy sources. The design parameters of the system are analyzed and optimized. A multi-objective optimization (MOO) is conducted, considering both energy efficiency and economic competitiveness. The result shows that the system can better meet the electricity demand of a community. The unmet demand for electricity falls from 8.1% to 4 % and the system generates additional 0.12 MWh/day.