Pvt Power has engineered a prototype in order to demonstrate the H-Turbine technology.

The drive shaft, left in the video, is powered with an electro-starter, which in turn is supplied in electricity with a 24V battery. Although just briefly, but long enough to enable the first rotor to rotate and to generate an airflow into the H-turbine. This airflow is heated up to expand manifold. This increased air pressure sets the rotors on the exit shaft in motion (righthand side in the video, at the exit of the H-turbine) and allows for the alternator to produce electricity.

There is no physical connection between the drive shaft and the exit shaft.

 

The second video shows the Pvt Power 40 KW Prototype: