CHEMICAL ENERGY (ELECTRIC)

Substances with chemical energy can supply energy once they undergo a chemical reaction that involves the interactions of atoms. For example, food has stored energy and our bodies supply the chemical reaction. Biomass and fossil fuels also have stored chemical energy.

NUCLEAR ENERGY

Atoms have a lot of energy stored in their nucleus. When atom is split apart through fission, the nuclear energy can be released and used.

HYDROPOWER (GRAVITATIONAL)

Water held in a reservoir has stored energy. The dam keeps the water from moving down river. When the dam is released, the water starts moving and falling which creates an energy that can be captured.