Division Formula 5

United Kingdom

{ΔP}_{mTA} = \frac{P_{TA}}{η_{B}} - \frac{P_{TA}}{η_{EI}}

where

P_RW

Power requirement under ‘real-world’ conditions [W], which is 750 W

P_TA

Power requirement under type-approval conditions [W], which is 350 W

η_B

Efficiency of the baseline alternator [%], which is 67 %