Can someone explain why this is not possible? All just spam and say that is not possible, some explanation pls sorry on my bad english...
The reason you can't get energy for free is "conservation of energy".
You can't get more energy out of something than you put into it.
Lets say for example you power a motor using 1kW of electrical energy, if you couple this motor to a generator, it's impossible to get more than 1kW out of this generator.
In theory it's even impossible to get close to this 1kW since you have to account for losses (friction in bearings that gets converted to heat, heat because of the resistance of wires, etc etc).
The energy has to come from somewhere.