Enabling zero emissions zones through optimal design of electric bus systems with the VTT Smart eFleet toolbox

VTT can help you design a reliable and cost-efficient electrified transportation system for your city. With our VTT Smart eFleet toolbox, we can help you to optimally plan and deploy electric bus fleets, taking into account the city topography, charging options, and type of the vehicles. VTT Smart eFleet supports your low-emission zone roadmap and cost-oriented decisions of how to succeed in your fleet electrification project.

Key facts

System level planning of re-designing the system and forecasting the costs of the project

Various scenarios for electrical transportation with techno-economical evaluation to support the tendering/electrification of varying routes and planning the needed charging infrastructure

The plan will comply with the adopted policies and requirements at city level

Design the best techno-economical solution for your electric public transportation system

Public transportation systems are facing many challenges towards complying with the latest emission regulations. According to our studies, most cities need to find the right answers to the following questions when starting to plan the transformation:

How to maintain reliability and improve customer experience?

Reliability and customer experience problems cause severe damage to public transport usage and thus create losses for the operation. These can be avoided with careful simulation and planning of the electric fleet deployment.

VTT has a very good understanding of key vehicle qualities and route optimisation. Collaborating with VTT ensured Santiago wasn’t deploying buses without knowledge on how they would perform.
Sebastián Galarza, Transport & energy sector lead at CMM

How to meet ambitious emission targets and higher energy efficiency?

The change is inevitable for cities to meet the ambitious goals with low-emission targets. Analyses based on simulation support the transition and enable cities to become low-emission zones.

Which is the best technological and economical solutions optimised for your specific need?

There are many technologies available, and the development is faster than ever. For instance, some battery types may serve best in near-by city operation, but show a lack of performance in other landscapes. VTT can help you choose right technology, based on simulation and analysis which will ensure the optimal and cost-efficient operation of your fleet.


The VTT Smart eFleet is the solution that increases predictability and ensures successful transformation in electrifying public transportation.

Science-based simulation & consultation for an electric transportation system

VTT Smart eFleet toolbox enables optimal sizing and dimensioning of electric vehicle systems and techno-economical evaluations for your city. It will scale up modularly and analyse geographical operation environments, different vehicles and infrastructure. Our toolbox is based on decades of research and VTT’s experimental measurements database and technical data.

Customer references

Centro Mario Molina

Centro Mario Molina used the VTT Smart eFleet toolbox to create a Santiago-specific drive cycle that optimises fleet electrification for Santiago’s infrastructure and conditions. The optimised electric bus fleet is cost-efficient, reduces pollution and has created a standard for future investments on electric buses in Chile.


Electric buses offer a way for HSL to reach its emissions goals, but fleet renewal requires careful planning. HSL used the VTT Smart eFleet toolbox to optimise the planning of routes and infrastructure along with the vehicle purchases. The toolbox has significantly increased the energy efficiency of HSL’s fleet while cutting emissions.


Nysse traffic took advantage of VTT Smart eFleet simulation service in preliminary studies for electrification and examined alternatives to electrification. The solution is intended to support the planning of the electrification of public transport and the related decision-making.

Heikki Rajasalo

Heikki Rajasalo

Solution Sales Lead
Yancho Todorov

Yancho Todorov

Senior Scientist
Research expertise