The reduction in GHG emissions depends strongly on the source of the ethanol. Using cellulosic
ethanol, the reduction in GHG can be up to 87 per cent relative to petrol.
The 3 ethanol buses in the NCT fleet have generated annual savings in CO2 emissions of 258 tonnes.
So far the impact of the trial on Nottingham is a reduction in CO2 emissions of 774 tonnes.