A solar chimney system that can produce fresh water from air and generate electricity was proposed. One-dimensional compressible flow and heat transfer model for air condensation and power generation inside the chimney was established to analyze the output performance of this engineering structure which combines water production and power generation. The results show that

the influence of chimney height on condensed water production is relatively large

more water can be obtained by increasing the chimney height under certain conditions. There is some relationship of mutual restraint between the wind turbine output power and the hydraulic turbine output power. With the increasing wind turbine pressure drop factor

the system total power increases first and then decreases. However

when the chimney height changes

the hydraulic turbine output power cannot be ignored

it shows that the wind turbine pressure drop factor corresponding to the maximum system total power reduces

which proves that the hydraulic turbine output power is considerable.