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IFEU Heidelberg

[TREMOD 2001]. A value 55 % net weight share of the total gross weight including lo- comotive has been calculated. This signifies a 5.5 % reduction of the gross weight for a 10 % net weight reduction.

The relative energy savings for a 10 % weight reduction have been derived in sec- tions 5 and 6. For the heavy trucks and freight trains we use relative energy savings which take into account a 10 % and 20 % share of weight limited transport respectively. The annual savings will be projected to the total life-time of the vehicles derived in sections 5 and 6 as well.

Passenger

City

Long distance

Heavy duty

Cars

buses

buses

vehicles***

Tab. 30: Scenario of life-time primary energy savings for new road vehicles in 2000

Vehicle

[PJ]

1700

22

30

412

Share of new vehicles*

6.7 %

7.2 %

7.2 %

15 %

Primary energy consumption (2000)

[PJ]

6.10

0.08

0.05

1.22

Life-time [years]

15

14

14

10

Life-time primary energy savings [PJ]

91.6

1.1

0.7

12.2

Life-time CO2 savings [kt]****

6600

83

48

900

Annual energy consumption of new registrations [PJ]

113.1

1.6

2.2

61.9

Reduction of gross weight

9.5 %

9.0 %

9.0 %

5.0 %

Relative energy savings [%/ 10% weight reduction]**

5.7 %

5.6 %

2.4 %

4.0 %

Source: IFEU 2002 from various sources

  • *

    derived from [BMVBW 2000]

** derived from absolute fuel savings in section 5 *** vehicles > 32 t maximum gross weight **** Figures rounded

IFEU 2003

Annual energy savi ngs of 10% weight reduced new registrations

Energy savings by light-weighting

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