Abstract: An attic evacuation system having a solar energy transfer section supported on a roof with a spacer between the energy transfer section and the roof. Air from the attic passes through the energy transfer section through two flow channels. A turbine is provided in one of the flow channels and drives a compressor which supplies compressed air to the other flow channel. A plurality of energy absorbing blades are provided in the flow channel having the compressed air. A transparent window is provided in the energy transfer section adjacent the energy absorbing blades. A diffuser nozzle is provided at the end of the flow channel without the energy absorbing blades. The flow channel containing the energy absorbing blades has an ejector nozzle at the exit end thereof. The ejector nozzle flow is directed into the diffuser nozzle to entrain air to draw air through the turbine to drive the compressor.