Low voltage grid resilience: Evaluating electric vehicle charging strategies in the context of the grid development plan Germany (Reibsch et al. 2024)
28. March 2024
H2CE – Strategy for hydrogen regions in Central Europe
4. April 2024Study for the e-bus strategy of Verkehrsbetriebe Hamburg-Holstein
In this project, RLI scientists are supporting Verkehrsbetriebe Hamburg-Holstein (VHH) in developing a strategy for the electrification of its entire bus fleet. To this end, the RLI project team is preparing a simulation-based feasibility study.
Inventory analysis
In a comprehensive analysis, the project team examines the initial situation of the twelve VHH depots. This includes an inventory of the vehicle and charging infrastructure as well as a route and deployment analysis of the current timetable. In consultation with the VHH, the scientists are developing the framework conditions for the e-bus strategy based on the regulatory requirements and political specifications (EU, federal government, state, local authority).
Transition concept for alternative drives
As part of the feasibility study, the project team is developing a conversion concept in the form of a roadmap up to 2030. This defines the technological parameters of a fleet with purely alternative drive concepts, such as the required battery capacities and air conditioning concepts. The roadmap also contains the individual measures for implementation and their chronological sequence. The project team is developing various deployment scenarios and using a simulation-based analysis to determine the necessary dimensioning of the charging infrastructure both in the depots and on the route.
Potential analysis for energy generation and storage
In order to determine the potential for the use of photovoltaic systems, the project team records available roof areas and existing energy generation systems at the VHH depots and creates power generation time series for these systems. The proportion of self-consumption is determined based on the consumption of the sites and the electric bus fleet. The RLI experts also use energy system simulations to determine relevant applications for stationary batteries at VHH. Finally, the influence of the integration of renewable energy systems and stationary storage systems on investment and operating costs is presented.
Project period: February 2024 - July 2024
Inventory analysis
In a comprehensive analysis, the project team examines the initial situation of the twelve VHH depots. This includes an inventory of the vehicle and charging infrastructure as well as a route and deployment analysis of the current timetable. In consultation with the VHH, the scientists are developing the framework conditions for the e-bus strategy based on the regulatory requirements and political specifications (EU, federal government, state, local authority).
Transition concept for alternative drives
As part of the feasibility study, the project team is developing a conversion concept in the form of a roadmap up to 2030. This defines the technological parameters of a fleet with purely alternative drive concepts, such as the required battery capacities and air conditioning concepts. The roadmap also contains the individual measures for implementation and their chronological sequence. The project team is developing various deployment scenarios and using a simulation-based analysis to determine the necessary dimensioning of the charging infrastructure both in the depots and on the route.
Potential analysis for energy generation and storage
In order to determine the potential for the use of photovoltaic systems, the project team records available roof areas and existing energy generation systems at the VHH depots and creates power generation time series for these systems. The proportion of self-consumption is determined based on the consumption of the sites and the electric bus fleet. The RLI experts also use energy system simulations to determine relevant applications for stationary batteries at VHH. Finally, the influence of the integration of renewable energy systems and stationary storage systems on investment and operating costs is presented.
Project period: February 2024 - July 2024
The RLI assumes the following tasks in this project:
- Fleet and location analyses
- Route and deployment analyses
- Development and evaluation of various transition scenarios
- Layout of the necessary infrastructure
- Potential analysis for energy generation and storage
- Planning the gradual implementation
