WP3: Rail Passenger Transport - TOSCA Project

Table 5-3b
Energy use and GHG emissions (per passenger-km, at public grid), for highspeed
electric trains, as estimated for new trains by 2050 compared with
reference train, at public grid or fuel tank.
Most
likely
Energy Use
(MJ / pass-km)
LB
UB
GHG Emissions
(g CO 2 -eq / pass-km)
Most
likely
Reference high-speed train (2009) 0.243 31
1. PA Low-drag 0.203 0.18 0.23 26 44 47
6. Pcomb electric (incl incremental) 0.126 0.11 0.15 16 23 32
7. Pcomb (as 6) + higher speed 0.165 0.15 0.20 21 19 25
8. Pcomb (as 7) + low-GHG el mix 0.165 0.15 0.20 4 4 5
Results are presented graphically in Fig 5-2 (energy use) and Fig 5-3 (greenhouse gas emissions),
in both cases aggregated over all types of electric rail passenger services. In Fig 5-2
Scenario 8 with low-GHG electric power is omitted because energy use is equal to Scenario 7.
In Fig 5-3 the combination Scenario 6 (with constant speed) is omitted for simplicity reasons.
2050 2025 2009 reference
LB
UB
Low drag
100.0%
93.8%
89.7%
Low mass
100.0%
97.5%
93.8%
Energy recovery
100.0%
92.2%
87.0%
Space efficiency
100.0%
91.5%
85.8%
Eco drive
100.0%
91.1%
85.2%
All comb
44.3%
66.6%
100.0%
All comb + Higher
speed
53.7%
72.2%
100.0%
Figure 5-2
Estimated trends of energy use (per passenger-km) by technology over time,
including all combinations and higher speeds, aggregated and weighted over
all types of electric rail passenger services.
Deliverable D4 – WP3 passenger 22