US Patent 9103320 Energy recovery cooling unit

A renewable energy power generation system for a cooling unit which comprises a housing sized to fit the cooling unit. The housing has an upper aperture and a lower aperture positioned over an exhaust port of the cooling unit. A rotor mounted wind turbine is in the housing between the upper aperture and the lower aperture. A venting flow coming through the exhaust port of the cooling unit will travel past the lower aperture of the housing to operate the wind turbine and then pass out of the upper aperture of the housing to cause the wind turbine to generate electricity.