Telegrammed by our man in 222 Marylebone Road
According to Appendix A – 'Indicative Strategic Research Projects' of DafT's 'Rail industry research strategy implementation plan':
"A recent modelling study by Birmingham University demonstrated an energy saving of 6.75% for hybrid use on the East Coast Main Line and 14.75% for the Great Western Railway."
Aside from a wormhole of 60 years that allowed the GWR to slip into the appendix why a Desk study?
Whilst DafT postures the real railway industry (in the form of Brush Traction, Hitachi and Porterbrook Leasing) have already designed and developed a hybrid High Speed Train power car 'proof-of-concept-demonstrator', tested it, run it in daily service powering Network Rail's New Measurement Train and measured the fuel consumption savings.
The Hayabusa hybrid is now being converted back to standard configuration because East Midlands Trains need more traction.
So lucky it didn't win the innovation award on Thursday night.