The main idea of the TASSIMA founders was clear and simple: "No more Sunday speeches about air pollution. Our inner cities must become cleaner and more livable again. Now. We want to make a significant contribution to clean, emission‑free mobility in cities."
As the transport sector is to contribute 40 to 42 percent (compared to 1990) to the 2030 climate target, TASSIMA wants to address precisely this issue and is initially targeting a group of particularly strong air polluters: city sightseeing buses, which are often operated with a special permit if they only meet the weak EURO II or EURO III emission standards as end‑of‑life vehicles or retro buses. For example, the NOX emission limits for diesel buses exceeding 3.5 t under the old EURO II standard are around 12 times higher than those of the latest EURO VI emission standard.
A modular conversion of such diesel buses to electric drive ("electric retrofit") will already create noticeable improvements in the city centres. Only in Berlin there is a potential of around 500 diesel buses on the roads.