Not in the literal sense of the words "Mechanical Energy". It depends on the source of the mechanical energy.If the source is renewable, like solar or wind generated electricity, then the mechanical energy is renewable.If the source is non-renewable, like electricity from burning oil, then it is non-renewable.
The oil thermal plant refers to the chemical energy that is stored in the fossil fuel like the natural gas, oil shale, fuel oil, and coal. They are usually successively converted into thermal energy, mechanical energy, and electrical energy.
If an object has kinetic energy, then almost BY DEFINITION it has mechanical energy. "Mechanical energy" is the sum of kinetic energy and potential energy.
Most of the devices that we use in society is a kind of mechanical energy. Mechanical energy is the energy of the other. Elevators. Convert electrical energy into mechanical. The car. Converted to mechanical energy is fossil. A bicycle. Muscular body converts energy to mechanical energy.
The most common way is to be ignited and burnt in an internal combustion engine, thus giving mechanical energy.
potiental energy
Motors convert electrical energy to mechanical energy. Generators transfer mechanical energy to electrical energy.
As far as I know, there is no such thing as "mechanical heat energy"; there is mechanical energy, and there is heat energy.
Three types? I can think of more than that. But I suppose if we group some together: there is mechanical energy, solar energy, wind energy, hydro energy. Thermal energy in a power station is transformed into mechanical energy so is covered by that. But then both wind energy and hydro energy convert to mechanical before the electricity is produced. So really at a fundamental level there seems only mechanical and solar. Mechanical would include fossil fuels, (coal, oil, natural gas,), nuclear, wind, incinerators, hydro, geothermal, and biomass, which all drive a mechanical device to produce the electricity. Solar produces electricity directly from photovoltaic cells so that is not mechanical.
a mechanical energy is a kind of energy
Not in the literal sense of the words "Mechanical Energy". It depends on the source of the mechanical energy.If the source is renewable, like solar or wind generated electricity, then the mechanical energy is renewable.If the source is non-renewable, like electricity from burning oil, then it is non-renewable.
Wind!