Abstract: A combined vertical axis wind turbine (VAWT) and vertical axis solar turbine (VAST) is disclosed. The apparatus has a plurality of counter rotating solar/wind collection panels which are mounted on respective counter rotating collars. The orientation of the panels is controlled by servo motors. Torque from the counter rotating collars is combined by a set of gears with the combined torque driving rotation of a power collecting column. Torque from the power collecting column is transmitted to a power transfer column through gears in a gearbox and then to a flywheel which has an armature as part of a motor generator whereby mechanical energy can be converted to electrical energy with the motor generator. Solar energy from the PV panels is routed to a power conditioning unit which is also connected to the motor generator.

Abstract: The first goal in this design is to combine Wind and Solar energy creating a new system that will increase the efficiency of the power collection system and which will therefore operate at a higher power density than conventional horizontal axis wind turbines (HAWT). The second goal is to store the generated energy where it is generated efficiently. The design is designated as a Vertical Axis Solar Turbine (VAST) which maybe suitable for grid power application. The unique method of construction of the VAST would be more visually appealing to the communities that will use it. Further there would be less risk of killing flying animals and insects and the noise level would also be less as there are no spinning blades.