Om tjänsten
The Stockholm region is growing rapidly, with increasing numbers of people commuting to, from, and within the county. Rapid
population growth and rising passenger expectations require a more attractive and efficient public transport system. The expanding
region also creates challenges related to road network capacity, environmental impact, and climate change. The aims not only to
provide an attractive public transport experience for existing passengers, but also to strengthen the competitiveness of public
transport and encourage more people to choose sustainable travel options. In this way, public transport becomes an important part
of solving Stockholm’s future mobility challenges. Background As Stockholm's bus fleet electrifies, energy management becomes a
critical operational challenge: heating and cooling alone can account for 30 to 50% of total consumption. This thesis is part of
ElbusTransTherm, a KTH research project run in parallel across four theses, one per operator, so your work sits alongside a small
cohort of students tackling the same problem from different angles. Purpose Project highlights - Industry data and placement. Work
directly with fleet telemetry from a commercial Stockholm public transport operator, and in collaboration with SL. - A shared
cohort. Four parallel theses across different operators mean regular contact with peers, potentially from other technical
backgrounds, working the same core problem, with shared methodology and a joint results seminar at the end. - Applied AI and data
science. Large-scale real data analysis and modeling, directly relevant to careers in energy, mobility, and industrial AI. - Open
research problem. Energy mapping and thermal-battery optimization for electric buses is an active, unresolved research area, with
outputs intended for operational use. Academic rigour in thesis is ensured through academic supervisor from KTH. Method and
implementation Phase 1, Energy Mapping. Develop a detailed empirical breakdown of fleet energy use across drivetrain, HVAC, and
auxiliaries, by time of day, season, and route. Deliverable: a data-driven Sankey diagram with quantitative variance analysis
identifying key energy drivers. Phase 2, Optimization. Choose one of three tracks: - Track A, Passenger-Centric Climate Control:
Dynamic thermal modeling and ISO 7730 comfort analysis to develop adaptive HVAC strategies (preconditioning schedules, adaptive
setpoints, comfort-energy decision tools). - Track B, Integrated Thermal-Energy Management: Electro-thermal vehicle modeling
linking battery health, powertrain efficiency, and HVAC demand, to reduce energy use and extend battery lifespan. - Track C,
Managing Operational Phases: understanding the operational phases in electric bus operations (pre-conditional, dead-heading, in
depot etc) and energy consumption across different parameters and optimisation possibilities. Both tracks contribute to a reusable
data pipeline and analysis methodology intended for operational deployment. Your education and experience Open to students across
relevant fields: energy systems, mechanical/thermal engineering, data science, machine learning, electrical engineering, or
applied mathematics, with an interest in modeling, optimization, or applied AI, and the ability to work with real-world data.
Supervisor Erik Dunkars, Energy Strategist Contact Information Erik Dunkars, Trafikförvaltningen Region Stockholm,
erik.dunkars@sl.se If you have any questions regarding this thesis project, please contact the supervisor, Erik Dunkars, at
erik.dunkars@sl.se For all other inquiries, please contact student@sl.se. Application All thesis projects at the are published on
the Student Collaborations at the Traffic Administration – Region Stockholm website as well as on the KTH Degree Project Portal.
Applications must be submitted through our recruitment system. Unfortunately, we are unable to accept applications via email.
Apply today, as interviews may be conducted on an ongoing basis. The final application date is 4th of November. We look forward to
receiving your application! Where are we Located? The offices of the are located on Kungsholmen in Stockholm, at Lindhagensgatan
100. About us According to our employees, our collective expertise and shared commitment are what distinguish our organization. We
also have managers and leaders who actively work to create and maintain an open and inclusive working environment. Together, we
contribute to the development of the Stockholm region by building and continuously improving a sustainable, modern, and accessible
public transport system for 2.3 million residents. Our mission: the shared journey. Website and Social Media To learn more about
what it is like to work with us, visit our careers page: www.regionstockholm.se/tfjobb You can also find us on LinkedIn.
Keywords: Energy mapping, electric bus fleet