How thermal energy is produced?

Matter is made up of atoms and molecules (groupings of atoms) and energy causes the atoms and molecules to always be in motion - either bumping into each other or vibrating back and forth. The motion of atoms and molecules creates a form of energy called heat or thermal energy which is present in all matter. read more

Solar thermal panels harness energy from the sun to energize homes and commercial buildings, according to Solar Systems USA. How Stuff Works mentions that geothermal energy is created by tapping into hot water or steam under the Earth to generate heat. read more