Systems and methods for generating electrical electricity use a wind turbine vent and an electrical generator operably coupled to the wind turbine for generating electricity from spinning of said wind turbine. An air flow guiding device extends between the wind turbine and a fan for guiding fan generated moving air between the wind turbine and fan. One or more solar panels for powering said fan are provided. When the system is installed on a building, the wind turbine turns as a result of outside wind, hot rising air escaping outside through the wind turbine vent, moving air generated by the fan powered by the solar panel, or a combination thereof, and thereby generates electricity. A solar battery can also be used for powering the fan. The system can be used to cool or heat the building while generating electricity.