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www.reference.com/article/different-types-energy-sources-d4b612fcdeecb698

Non-renewable and renewable energy sources are the two types of energy. As the names state, non-renewable sources such as fossil fuels are not able to be used again. Renewable sources such as wind can be used over and over again.

www.reference.com/article/sources-chemical-energy-c67ba73937e7cfed

Chemical energy is that which is either released or absorbed when a chemical reaction takes place, such as the release of heat and electrical energy from a hydrogen fuel cell. Another example is the heat release derived from burning wood or other organic substances. Bur...

www.reference.com/article/source-sun-s-energy-76b4d49cced4ee03

The sun's energy comes from thermonuclear fusion reactions. Because the sun's gravity is so strong, hydrogen atoms fuse together to form helium. When they do so, they release a tremendous amount of energy.

www.reference.com/article/different-forms-energy-d4f7e4508ff54472

Kinetic, potential, thermal, chemical, electrical, electrochemical, electromagnetic and nuclear energy are the different forms of energy. Each energy form measures the ability of an object to do work on another object. Each energy form is a way that an object possesses ...

www.reference.com/article/ultimate-source-energy-9680828053141cd0

The ultimate source of energy is the sun. It sustains virtually every aspect of life on Earth. Other sources of energy, both renewable and nonrenewable, either directly or indirectly depend on the sun.

www.reference.com/article/difference-between-power-energy-5dc08c2aa3ca4126

Energy can be defined as the capacity to do work or accomplish a physical action like running, while power is the rate at which energy is transmitted or work is done. The unit of measurement for energy is Joules, calories or ergs. Power's unit of measurement is Watts, w...

www.reference.com/article/main-energy-source-planet-165c0bcd866e724c

The main source of energy for the planet is the sun. Solar energy includes light, radio waves and X-rays, all of which provide energy on Earth.