Energy Use FAQ

What is primary energy?

Ireland’s energy supply is discussed in terms of changes to the total primary energy requirement (TPER), defined as the total amount of energy used within Ireland in any given year. This includes the energy requirements for the conversion of primary sources of energy into forms that are useful for the final consumer, for example electricity generation and oil refining.

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What is final energy?

Final energy demand is a measure of the energy that is delivered to energy end users in the economy to undertake activities as diverse as manufacturing, movement of people and goods, essential services and other day-to-day energy requirements of living. This is also known as Total Final Consumption (TFC).

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What is the difference between primary and final energy?

Total Final Consumption (TFC) and is essentially total primary energy less the quantities of energy required to transform primary sources such as crude oil into forms suitable for end use consumers such as refined oils, electricity, patent fuels etc (Transformation, processing or other losses entailed in delivery to final consumers are known as “energy overhead”).

Primary energy supply gives a more complete measure than final energy demand (accounted for in the gas, oil, electricity and coal bills) of the impact of the individual sectors on energy use and on energy-related CO2 emissions.

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What is Gross Final Energy Consumption?

“Gross final consumption of energy” (GFC) means the energy commodities delivered for energy purposes including the consumption of electricity and heat by the energy branch for electricity and heat production including losses of electricity and heat in distribution

GFC = TFC( Transport) + GFC(Elec) + GFC(Heat)

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Where can I get information on Residential energy use?

Please read the following EPSSU publications:

Energy in the Residential Sector

Source data and graphs can be downloaded from the databank. 

Click here for instructions on how to download data from the databank.

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Where can I get information on Transport energy use?

Please read the following publications:

Source data and graphs can be downloaded from the databank. 

Click here for instructions on how to download data from the databank.

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Where can I get information on Industry energy use?

Please read the following publications:

Source data and graphs can be downloaded from the databank.

Click here for instructions on how to download data from the databank.

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Where can I get information on Services energy use?

Please read the following publications:

Source data and graphs can be downloaded from the databank. 

Click here for instructions on how to download data from the databank.

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Where can I get information on energy efficiency?

Please read the following publications:

Source data and graphs can be downloaded from the databank. 

Click here for instructions on how to download data from the databank.

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Where can I get information on energy security?

Please read the following publications:

Source data and graphs can be downloaded from the databank.

Click here for instructions on how to download data from the databank.

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Where can I get information on energy use in Ireland?

Please read the following publications:

Source data and graphs can be downloaded from the databank. 

Click here for instructions on how to download data from the databank.

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Where can I get information on Combined Heat and Power (CHP)/Cogeneration in Ireland?

Please read the following publications:

Source data and graphs can be downloaded from the databank. 

Click here for instructions on how to download data from the databank.

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Where can I get information on Renewable energy use in Ireland?

Please read the following publication:

Source data and graphs can be downloaded from the databank. 

Click here for instructions on how to download data from the databank.

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