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Generators transform energy into electrical energy. The output of the generator is the electric power it "makes". The input is whatever is used to create mechanical energy to turn the "prime mover", or the thing that makes the generator spin (be it steam / thermal energy, water, wind, etc.).
no there must at least be an initial input to get it started.
Build a generator that uses the kinetic energy in water as it motivational input.
Then the motor will act as generator by principle
Electric motor is an example of conversion of energy. Electric generator is another example.
A generator typically converts mechanical energy (from, for example, fuel combustion or wind) into electrical energy. This electrical energy is then used to power various devices or systems.
Motors and Generators are Transducers which convert one form of energy to another form. Constructionally both are same. Theoretically, same machine can function as both motor and generator depending upon the input it recieves. If it is supplied with mechanical input it gives out electrical output (Generator). If it is given electrical input, it gives out mechanical output (Motor).
You can provide mechanical input to a generator by connecting it to a rotating source, such as a turbine or an engine, using a drive shaft. The rotation of the source will then be converted into electrical energy by the generator through the process of electromagnetic induction. Proper alignment and sizing of the mechanical components are essential to ensure efficient power generation.
An example of mechanical energy converting to electromagnetic energy is when a generator converts the kinetic energy from a spinning turbine (mechanical energy) into electrical energy (electromagnetic energy) through electromagnetic induction.
Mechanical energy is supplied to a generator from an engine, a steam turbine for example, and converted to electrical energy
It can use wind, wave, solar, thermal, geothermal, hydroelectric.
An example of kinetic energy being transformed into electrical energy is when a wind turbine is in motion due to wind. The kinetic energy of the moving blades is converted into electrical energy through a generator attached to the turbine, producing electricity.