The first “zero emission capability” buses to be used by Dublin Bus and Bus Éireann are to be deployed in Dublin and regional cities by the end of the year. The NTA has previously purchased nine hybrid diesel electric buses for service in Dublin and the regional cities. Three of these are deployed in Dublin, via Dublin Bus. But these buses can not run in zero emissions mode. It expects electric buses rather than biogas-fuelled vehicles are more likely to be deployed.
Source: The Irish Times January 30, 2020 20:49 UTC