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5. Assessing grey energy: a complex problem
While the definition of grey energy is fairly clear, its precise evaluation is more complex. It is necessary to define the boundaries of the evaluation, as the result can vary greatly depending on the perimeter chosen.
Let's take a simple example to illustrate this point and show the complexity of the problem: that of an electric convector.
Energy in use, or operational energy, can be defined quite simply, even if its assessment involves considerable uncertainties in practice. In fact, users don't have a battery of measuring instruments in place at home to measure radiator consumption in real time. To make a reliable measurement, it would be necessary to measure the electricity consumption of each convector by installing it in a representative sample of the population. If each appliance is fitted...
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Assessing grey energy: a complex problem
Environmental impact of embodied energy
Bibliography
- (1) - POUROUCHOTTAMIN (C.L.E.M.P.) - Nouvelles représentations des consommations d'énergie. - Les cahiers du CLIP, n° 22 (2013).
- (2) - - http://labo-energetic.eu/fr/a_telecharger/Concept_energie_grise.pdf...
Websites
French Environment and Energy Management Agency http://www.ademe.fr
International Energy Agency http://www.iea.org
Areva http://www.areva.com
BP statistical review...
Further information
In the BE "Génie énergétique" bases of Techniques de l'ingénieur.
Events
European Conference on Sustainable Renovation of Buildings http://www.eurima.org
Software tools
Gabi software developed in Germany http://www.gabi-software.com
Simapro software http://www.evea-conseil.com
initially developed in the Netherlands by Pré Consultant http://www.pre.nl
...Standards and norms
- Environmental management – Lifecycle analysis – Principles and framework - NF EN ISO 14040 - 10-06
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