ViP Verkehrsbetrieb Potsdam GmbH is the operator of inner-city public transport in the state capital Potsdam. The ViP's own infrastructure as well as the vehicle fleet must be kept up with the development of the state capital, with increased needs in view of the traffic transition or adapted. For this purpose, a corresponding adaptation of the depot at Fritz-Zubeil-Str. 96 in 14482 Potsdam-Babelsberg is required. In order to implement the requirements of the Clean Vehicle Directive (VCD), the existing bus fleet, which currently consists of around 60 vehicles, is to be gradually replaced by emission-free vehicles with alternative electric propulsion. As a first step, 23 "Ebusco 3.0" electric buses have already been ordered, including 13 articulated buses (E-GOM) and 10 solo buses (E-SOM), which are expected to be delivered in the first quarter of 2026. In the long term, it is planned to convert the entire fleet to emission-free drives by 2029. In order to operate this forward-looking drive technology efficiently at the depot of the transport companies, extensive infrastructural measures are required. In addition to the construction of an efficient charging infrastructure (LIS), the construction of a special structure is also necessary, which serves as a parking system for the buses during the charging process. This project includes both the provision of the necessary electrotechnical primary technology and the implementation of structural measures to ensure a smooth integration of the new technology into everyday operations. The aim of the project is to build the infrastructure for a fully electrified fleet and to enable the operation of electric buses. In the final state of expansion, the plant will have the following capacities: 8x fast charging stations (High Power Charger = HPC): These are realized in free standing and are not weather-protected. They are used to charge E-SOM and E-GOM vehicles with a charging power of 300 kW each. 59x Depot loader: These are installed under the roof of the bus port and offer a charging power of 150 kW each. The task includes a comprehensive package of measures, which includes the demolition and conversion of the existing facilities affected by the construction project as well as the construction of new structures for the medium- and high-voltage infrastructure. These include in particular the technical buildings for chargers and transformers, which are necessary for the operation of the charging infrastructure. In addition, the underground and above-ground lines between the bus port and the technical buildings must be planned and constructed in order to ensure a reliable connection between the individual components. In addition, the task includes the installation of all necessary electrical systems, including safety technology, lighting, the photovoltaic system (PV system) and the undervoltage supply. Due to the promotion of the measure - both for the procurement of the fully electric buses and for the necessary charging infrastructure - there is a high urgency for the implementation of the project. In order to ensure the continuous operation of local public transport and to implement the planned fleet changeover on time, it is crucial to initiate the construction measure promptly. In consultation with ViP Verkehrsbetriebe ViP Potsdam GmbH and external project management, the overall project was subdivided into the following subprojects (TP): TP 1.3 - Medium Voltage (MS) Transfer Station & 8 HPCs: 10 kV transfer station with self-consumption transformer with grid connection power of the responsible energy supply company (EVU) of 7 MW; Central interface between the external power supply and the internal technical facilities In addition, 8 fast charging stations of 300 kW will be built. TP 2.3 - Disaster sites In the first expansion stage, an area of the sub-camp is to be designated as an accident site for electric buses in accordance with the requirements and coordination with the insurers and the fire brigade. TP 2.4 - Pantographs in urban area 1. Location Hauptbahnhof (Friedrich-Engels-Str. 101, 14467 Potsdam): Construction of three fast charging points for electric buses, consequently charging masts, transformer station in compact design, chargers and NSHV 2. Location Campus Jungfernsee (Konrad-Zuse-Ring 10, 14469 Potsdam): Construction of a fast charging point for electric buses, consequently a charging mast, transformer station in compact design, charger and NSHV This tender comprises the first expansion stage of the charging infrastructure on the factory premises. The aim is to supply the first 23 electric buses with eight HPC charging points at the depot as well as four more in the urban area and a new medium-voltage transfer station. The construction of the technical building TP 1.7 as well as the covered bus parking (busport) is expressly not part of the service. However, the interfaces for the later final expansion must be taken into account. For this purpose, both technical and structural measures must be planned as an interim solution. The MS transfer station (TP 1.3), as well as the two technical building blocks LIS North and South (TP 1.7) are located in the area of the currently undeveloped green strip between the tram bypass track along the east side of the tram parking hall, as well as the existing bus parking. This green strip will be built over the entire length of the straight section of the tram track.
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