# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 4.3: Calculation of electric energy consumption


For the determination of the electric energy consumption based on the current and voltage determined according to Appendix 3 of this Sub-Annex, the following equations shall be used:
ECDC,j=ΔEREESS,jdjwhere:
ECDC,jis the electric energy consumption over the considered period j based on the REESS depletion, Wh/km;
ΔEREESS,jis the electric energy change of all REESSs during the considered period j, Wh;
djis the distance driven in the considered period j, km;
and
ΔEREESS,j=∑j= 1nΔEREESS,j,iwhere:
ΔEREESS,j,iis the electric energy change of REESS i during the considered period j, Wh;
and
ΔEREESS,j,i=13600×∫t0tendUtREESS,j,i× Itj,i dtwhere:
U(t)REESS,j,iis the voltage of REESS i during the considered period j determined according to Appendix 3 to this Sub-Annex, V;
t0is the time at the beginning of the considered period j, s;
tendis the time at the end of the considered period j, s;
I(t)j,iis the electric current of REESS i during the considered period j determined according to Appendix 3 to this Sub-Annex, A;
iis the index number of the considered REESS;
nis the total number of REESS;
jis the index for the considered period, where a period can be any combination of phases or cycles;
13600is the conversion factor from Ws to Wh.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/8n1/division/division/4./division/4.3. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/8n1/division/division-4./division-4.3.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.