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Primary energy
 
 
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Primary energy is energy that has not been subjected to any conversion or transformation process.

Primary energy is energy contained in raw fuels and any other forms of energy received by a system
System

System is a set of interacting or interdependent entities, real or abstract, forming an integrated whole.The concept of an "integrated whole" can also be stated in terms of a system embodying a set of relationships which are differentiated from relationships of the set to other elements, and from relationships between an element of the se...
 as input
Input

Input is the term denote either an entrance or changes which are inserted into a system and which activate/modify a process. It is an abstract concept, used in the model ing, system design and system exploitation....
 to the system. The concept is used especially in energy statistics
Energy statistics

Energy statistics refers to collecting, compiling, analyzing and disseminating data on commodities such as coal, crude oil, natural gas, electricity, or renewable energy sources , when they are used for the energy they contain....
 in the course of compilation of energy balance
Energy balance

Energy balance has the following meanings in several fields:* In physics, energy balance is a systematic presentation of energy flows and transformations in a system....
s. Primary energy includes non-renewable energy
Non-renewable energy

Non-renewable energy is energy taken from "finite resources that will Hubbert peak theory, becoming too expensive or too environmentally damaging to retrieve", as opposed to renewable energy sources , which "are naturally replenished in a relatively short period of time." ...
 and renewable energy
Renewable energy

Renewable energy is energy generated from natural resources—such as sunlight, wind, rain, tidal energy and geothermal energy—which are Renewable resource ....
.

ary energies are transformed in energy conversion
Energy conversion

In physics, the term energy describes the amount of work which may potentially be done by forces within a system. Changes in energy in systems can only be accomplished by adding or subtracting energy from them, as energy is a quantity which is conserved....
 processes to more convenient forms of energy, such as electrical energy and cleaner fuels.






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Encyclopedia


Primary energy is energy that has not been subjected to any conversion or transformation process.

Primary energy is energy contained in raw fuels and any other forms of energy received by a system
System

System is a set of interacting or interdependent entities, real or abstract, forming an integrated whole.The concept of an "integrated whole" can also be stated in terms of a system embodying a set of relationships which are differentiated from relationships of the set to other elements, and from relationships between an element of the se...
 as input
Input

Input is the term denote either an entrance or changes which are inserted into a system and which activate/modify a process. It is an abstract concept, used in the model ing, system design and system exploitation....
 to the system. The concept is used especially in energy statistics
Energy statistics

Energy statistics refers to collecting, compiling, analyzing and disseminating data on commodities such as coal, crude oil, natural gas, electricity, or renewable energy sources , when they are used for the energy they contain....
 in the course of compilation of energy balance
Energy balance

Energy balance has the following meanings in several fields:* In physics, energy balance is a systematic presentation of energy flows and transformations in a system....
s. Primary energy includes non-renewable energy
Non-renewable energy

Non-renewable energy is energy taken from "finite resources that will Hubbert peak theory, becoming too expensive or too environmentally damaging to retrieve", as opposed to renewable energy sources , which "are naturally replenished in a relatively short period of time." ...
 and renewable energy
Renewable energy

Renewable energy is energy generated from natural resources—such as sunlight, wind, rain, tidal energy and geothermal energy—which are Renewable resource ....
.

Conversion to secondary energy

Primary energies are transformed in energy conversion
Energy conversion

In physics, the term energy describes the amount of work which may potentially be done by forces within a system. Changes in energy in systems can only be accomplished by adding or subtracting energy from them, as energy is a quantity which is conserved....
 processes to more convenient forms of energy, such as electrical energy and cleaner fuels. In energy statistics these forms are called secondary energy. Secondary energy is a energy which has been transformed from one form to another. Electricity is the most common example being transfromed from coal, oil, natural gas, wind, etc.

See also

  • Energy development
    Energy development

    Energy development is the ongoing effort to provide sufficient primary energy sources and secondary energy forms to fulfill civilization's needs....
  • Future energy development


External links

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