What are primary and secondary sources of energy?
Answers
Answer:
Primary energy sources are usually either natural or refined resources.
They undergo an energy conversion process to produce a secondary (usually more convenient) form of energy.
What Are Secondary Energy Sources?
Secondary energy sources are forms of energy produced from the above mentioned energy conversion process of primary energy sources.
Secondary energy sources are the ones we as humans usually directly use in a more convenient way e.g. the burning of coal at coal power plants is the primary energy source that delivers us the secondary energy source of electricity to use at work, in our homes etc.
Secondary energy sources are also referred to as energy carriers, because they move energy in a useable form from one place to another [secondary energy is essentially a good that has been changed from it’s original state to another state for ease of consumption]. The two most well-known energy carriers are electricity and hydrogen.
What Are Examples Of Primary & Secondary Energy Sources?
coal, raw oil, natural gas, wind, sun, streaming water, [… and uranium are all examples of primary energy sources]
Gasoline is a secondary product better suited for motor transport uses than crude oil, the primary product from which it is made.
Electricity production based on hydropower, solar PV, wind and ocean energy is considered to be primary energy.
For geothermal and solar thermal, however, heat is the primary energy, which can be transformed into secondary geothermal or solar electricity.
[Bioenergy is a more complicated/complex form of energy as not all bioenergy sources are primary energy products]
Explanation: