An integrated renewable energy supply system is designed and proposed to effectively address high building energy consumption in Zhengzhou, China. This system effectively provides cold, heat, and electricity by incorporating various clean energy sources such as wind, solar, hydrogen, and geothermal energy. Technical and economic analyses are conducted to optimize the integration of these renewable sources. Technical and economic analyses are cond. An integrated renewable energy supply system is designed and proposed to effectively address high building energy consumption in Zhengzhou, China. This system effectively provides cold, heat, and electricity by incorporating various clean energy sources such as wind, solar, hydrogen, and geothermal energy. Technical and economic analyses are conducted to optimize the integration of these renewable sources. Technical and economic analyses are conducted to optimize the integration of these renewable sources. Rigorous system modeling and dynamic simulation using TRNSYS software evaluate the seamless integration and optimal functioning of the PV/T subsystem within the CCHP system. The interaction between Photovoltaic/Thermal (PV/T) and borehole heat exchanger (BHE) coupling is investigated, analyzing their impact on individual system performance. Furthermore, key indicators, including overall electricity consumption (OEC), life cycle cost (LCC), heat pump coefficient of performance (COPHP), and system coefficient of performance (COPSYS) are analyzed. The robust response surface methodology (RSM) and Box-Behnken experimental design approach are employed to show remarkable agreement between predicted and simulated values, with a maximum deviation of only 1.45%. The optimal configuration consists of a PV/T area of 132 m2, 20 wind turbines, 12 alkaline fuel cells, and 17 borehole heat exchangers, resulting in highly favorable outcomes: an OEC of −35648.72 kW∙h/year, an LCC of $209. ••A novel co-generation system integrated PV/T-HP with CCHP, a rarity in prior R-CCHP designs.••The comprehensive system achieved high-level low carbon and energy savings in energy supply.••RSM method optimized system design for technical and economic efficiency.Multi-energy complementaryRenewable energyPhotovoltaic/thermal-heat pumpResponse surface method modelA Area, m2AOC Operating cost of the system in one year,$A Axial induction factorB Tafel slopeCap Heat capacity of the floor, kJ/KCOPHP With the increasing global energy demand, the world is confronted with even greater challenges. Apart from grappling with the adverse effects of climate change, there is also a pressing need to address the developmental disparities arising from energy shortages. The proportion of energy consumed by buildings is on the rise, with research conducted by the International Energy Agency revealing that buildings account for nearly 30% of global energy consumption. Therefore, the problem of high energy consumption in buildings urgently needs to be solved. The development of renewable energy in building applications is an important way to develop clean heating and cooling energy and reduce pollutant emissions. The development and utilization of clean renewable energy sources such as hydrogen, solar, and wind energy has become a key focus of research in the field of building energy,,.The update and iteration of conventional energy systems are crucial given the widespread usage of renewable energy on a global basis. A novel form of combined renewable energy cooling, heating, and power system (R-CCHP) has been proposed recently. This system replaces conventional fossil fuels with a complementary renewable energy sources,,,. Energy costs, initial outlay, operating costs, maintenance costs, and other aspects of this developing energy system technology could be more than anticipated. Theref.
