kEiThZ
Superstar
The question is how much energy is required to make ethanol from organic waste (which is typically low energy)? While it might (I'm not convinced) be a good option for areas where it is difficult to electrify, the petroleum industry will want to use it use it to keep their market share and have people use it instead electrification. While it might be "carbon neutral" in terms of CO2 in vs CO2 out (assuming all energy used in processing and transportation are carbon free or neutral), there are other pollutants created when burning fuels.
I'm not in any way suggesting that biofuels are the best solution. Only that in the case of North American railways, it's the likely solution because the economics of biofuels outweighs the alternatives right now. Our major rail operators don't seem to be at interested in electrification through OCS. Hydrogen and battery cars can't yet deliver the ranges they need. That leaves only one obvious solution. Could that change in the future as technologies evolve? Certainly. For now though, the obvious bet for the freight rail cos that operate most of the networks VIA runs on, looks like biofuels.
At least Corridor passenger rail could be substantially electrified with HFR (even if it's not under VIA). Given that the Corridor is over 90% of VIA's ridership, even half of that ridership moving to an electrified corridor would be a massive improvement. And if the other half is on biofuels, VIA's net emissions could be an order of magnitude lower than today.




