Abstract: A power generating system for a building is provided, the building has a wall structure and a curtain wall covering the wall structure. The power generating system includes an energy conversion module, a detecting module, a control module and a regulating module. The energy conversion module is integrated with the curtain wall for generating a first electrical power. The detecting module is used for detecting a second electrical power related to the consumption of an electrical system of the building. The control module is communicatively connected with the energy conversion module and the detecting module, for generating a control signal based on the first electrical power and the second electrical power. Additionally, the regulating module is communicatively connected with the control module, for receiving the control signal and regulating a cooling fluid flow between the wall structure and the curtain wall based on the control signal.