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18. Energy savings calculations
Energy savings are calculated either before (ante) or after (post) implementation.
Before carrying out an energy-saving action, a calculation will be made to assess the operation's profitability and feasibility: the result will be based on an estimated calculation (ex ante).
This calculation is mandatory in the case of an energy audit or diagnosis, where each recommendation for improving energy performance and reducing energy consumption must be accompanied by an estimate of energy savings and profitability (Ademe specifications, AFNOR normative document BP X 30 120 and European standard NF EN 16247).
The estimate is based on the elements in the appraiser's possession, using a more or less precise method. It is accepted that the margin of error should not exceed 25%.
The accuracy of this...
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Energy savings calculations
Energy-saving sector actions
Bibliography
Standards and norms
- Document normatif français et traduit en anglais : Référentiel de bonnes pratiques du diagnostic énergétique dans l'industrie - AFNOR BP X 30 120 - 2006
- Audit énergétique : l'audit énergétique parties 1 à 5, de 2012 à 2015 - NF EN 16247 -
- Energy metering and monitoring plan – Design and implementation – Principle of energy data collection – Energy measurement and monitoring plan – Design and implementation...
Regulations
Law no. 2005-781 of July 13, 2005 on energy policy (Loi POPE)
Directive 2010/75/EU on industrial emissions (known as "IED") adopted in 2010 (recast of Directive 2008/1/EC concerning integrated pollution prevention and control, known as IPPC, from 2008)
Directive 2012/27/EU of the European Parliament and of the Council of October 25, 2012 on energy efficiency
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Public bodies
Public body responsible for implementing the energy transition – Ademe http://www.ademe.fr
Public Investment Bank – Bpifrance http://www.bpifrance.fr
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