It is my belief that there is a simple source of energy that is universal.
It's a simple matter of extracting the energy to make it Kinetic.
EXAMPLE:
Say you take a vessel and charge it with 100 psi of air pressure.
You then inject a spinning wheel much like a bike wheel only the spokes are hollow and can transport a fluid.
The center of the wheel has a inlet pipe that extends outside the vessel.
Butterfly valves are used to keep the air pressure from coming out the inlet.
If you use a motor to spin the wheel and inject a liquid into the inlet pipe you will be able to release the liquid into the vessel once you have surpassed the pressure difference of 100 psi.
Now you have a liquid that is under 100psi that can be released out the bottom to turn a turbine or some other mechanical device.
The potential difference you develop by spinning the device stays in tact as the fluid flows. and remarkably doesn't cost any additional energy to keep a state of potential difference while the fluid flows through. (I have a working model that exhibits this truth).
It is not perpetual motion you have to develop the potential difference by a external motor.
Now it's all about fluid volume, you have to have enough fluid movement to power the motor and extra for what ever device you want to power up like your car or boat!