Chemical: DescriptionChemical energy is the potential of a chemical substance to undergo a chemical reaction to transform into other substances. Examples include batteries, food, gasoline, and etc. Breaking or making of chemical bonds involves energy, which may be either absorbed or evolved from a chemical system
Mechanical: Mechanical energy is energy that results from movement or the location of an object. Mechanical energy is the sum of kinetic energy and potential energy. ... A moving car has kinetic energy. If you move the car up a mountain, it has kinetic and potential energy
Geothermal: Geothermal energy is thermal energy generated and stored in the Earth. ... The adjective geothermal originates from the Greek roots γη (geo), meaning earth, and θερμος (thermos), meaning hot. Earth's internal heat is thermal energy generated from radioactive decay and continual heat loss from Earth's formation.
Nuclear: the energy released during nuclear fission or fusion, especially when used to generate electricity.
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