Well coming from the industrial side of view, most electrical energy that we consume is Generated like the name implies by a gearbox motor generator whose shaft is spun by turbine fueled by for example gas or coals .But coming from a hobbyist side, a gearbox motor generator can be useful for windmill experiments which you know is always fun. So, Let's imagine. We got a steady breeze and thus a constant torque on the gearbox motor generator shafts to simulate the situation, I will be using an ODrive BLDC motor With a 3d printed motor mount and an attached encoder to the motor shafts In combination with the fitting o drive control boards, this motor becomes powerful and quite versatile.

   Since it can be rotated very slowly, Almost completely silent and best of all, it can go to a position and stay there with a holding torque- Due to the utilization of the encoder So, all in all, the ODrive is pretty awesome But, since a more appealing graphical interface would be more suitable for this experiment. .