Primary Energy Factor Definition

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Due to the fact that the target is defined on primary energy level the primary energy factor pef that is applied for electricity is a crucial aspect.

Primary energy factor definition.

More background on primary energy factors in relation to the energy performance of buildings directive epbd and relevant cen standards is given in chapter 2. Primary energy is the energy that s harvested directly from natural resources sources of primary energy fall into two basic categories primary fuels and primary energy flows see fuel vs flow for a detailed discussion. It is energy contained in raw fuels and other forms of energy received as input to a system primary energy can be non renewable or renewable. There are several internationally recognised definitions for primary and secondary energy.

To reduce eu primary energy consumption in 2020 by 20 in compari son to a given baseline development. Primary energy factors on the building practices in european countries. A more detailed description can be found in the sap 2016 consultation paper consp 072. Approaches for definition of primary energy differ in eu member states.

The use of primary energy factor pef was chosen by european union policy makers as an obligatory part of methodology for comparing the primary energy consumption of products using different energy sources. Primary energy pe is an energy form found in nature that has not been subjected to any human engineered conversion process. The fuels in primary energy are all primary fuels a country s different sources of primary energy are aggregated into a quantity called total primary energy supply tpes. Primary energy is reported in energy content terms such as gj or kwh.

Our findings on the primary energy factors used by a number of european countries are discussed in chapter 3. Where primary energy is used to describe fossil fuels the embodied energy of the fuel is available as thermal energy and. This amounts to total required savings of 368 mtoe. Sap uses primary energy factors to convert the calculated energy requirements of a dwelling into a primary energy demand figure.

The definition in en iso 52000 1 is primary energy is energy that has not been subjected to any conversion or transformation process. The purpose of the primary energy factors pefs set out in annex iv of the eed is to assist member states to translate final energy savings into primary energy savings in the framework of article 3 energy efficiency targets and art 7 energy efficiency obligation schemes. Bpie proposes using delivered energy as the main building performance indicator to determine and set requirements for its energy performance.

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