The use of new fuels and vehicle technologies is an important step in reducing dependency on fossil fuels, bringing down emissions and particulate matter levels and increasing energy-efficiency. Donostia-San Sebastian had an ambitious plan to achieve these goals by introducing high biodiesel blends and new vehicle technologies in its public transport fleet.
The main objectives of the measure were to:
- Maximizing the opportunities for the take-up of second generation bio-fuels and EEV vehicles by gradually introducing the use of biodiesel from used cooking oils in the bus fleet of DBUS well beyond EU RTFO requirements.
- Reducing air pollutant and GHG emissions by renewing DBUS’ vehicle fleet (30 EEV buses and one hybrid bus) and using bio-diesel at high blends (up to B100) at a large scale in the city
The city wished to act as a local showcase and promotional actions were planned to convince also other fleet operators and individual car users to switch. Further future innovations in clean vehicles, like second-generation bio-diesel, hydrogen and hybrids were considered in a comparative study.