- Solar energy from the sun.
- Wind energy.
- Geothermal energy from the heat inside the earth.
- Hydropower from flowing water.
- Ocean energy in the form of wave, tidal, current energy and ocean thermal energy.
- Biomass from plants.
What are three things that produce energy?
The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources. Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy.18 Mar 2021