Procurement of charging infrastructure for the operation of HST electric buses

LOT-0001
Depot Existing Facility.
Lot 1 includes the delivery and integration of 8 liquid-cooled chargers and associated charging points (including charging hoods compatible with the pantograph system by company Schunk) into the existing charging infrastructure at the depot. The focus is on the functional and structural integration of additional chargers into existing technical facilities and the establishment of charging points in the vehicle hall, including the necessary hardware, cabling, and integration into the existing IT communication system.

Services include in particular:
• Execution planning, delivery, and installation of additional chargers and associated charging points in the vehicle hall (including all necessary hardware components).
• Integration of the 8 chargers with a charging power of 150 kW/device into the existing infrastructure of the depot, especially connection to the existing low-voltage switchgear system and connection to the existing cooling system (liquid cooling).
• Installation according to fire protection requirements.
• Communication and system integration: ISO 15118 for vehicle communication and OCPP connection for coupling to higher-level IT/backend systems.
• Commissioning, parameterization, and functional verification (individual components, overall system, and interaction with vehicles).
• Training/handover to the client and provision of defined maintenance services within the agreed performance period.

The contractor must ensure that the charging points are professionally installed and commissioned during ongoing operations, considering local conditions. Necessary auxiliary work (e.g., cable routes, steel construction work, breakthrough work, etc.) must be included in the scope of services.

LOT-0002
Depot Expansion.
4. Lot 2 - Depot: Extension of the existing medium-voltage connection, 2 transformer-charging technology stations, 24 chargers, 30 charging points in the vehicle hall for buses on an existing and yet-to-be-erected truss construction.

Lot 2 includes the expansion of the power supply and the establishment of new charging infrastructure at the depot. The focus is on the establishment of two new transformer-charging technology stations including medium-voltage connection, transformers, switching and distribution technology, and chargers. Additionally, the lot includes the construction of a truss to accommodate charging hoods and cable systems in the vehicle hall and the construction of charging points on an existing truss. Integration into the client's IT infrastructure and IT communication is also required. The goal is to provide electrical power at the depot for the continuously growing electric bus fleet. For this, an extension of the medium-voltage ring already installed at the depot is necessary. Transformer-charging technology stations typically include transformers, medium and low-voltage switchgear, chargers, buildings, and ancillary facilities.

Services include in particular:
• Planning and construction of the medium-voltage connection and integration into the existing transformer-charging technology station.
• Delivery, assembly, and commissioning of two transformer-charging technology stations with transformers, medium-voltage switchgear, and necessary low-voltage distribution.
• 24 chargers with 150 kW charging power each for a total of 30 charging points. 6 of the chargers should be able to serve 2 charging points each.
• Construction of the truss in the vehicle hall for mounting charging hoods and cable systems.
• Implementation of switching and distribution devices for charging power to multiple charging points including functionality and safety verification. We award additional points to applicants offering chargers that can distribute their power to 2 charging points simultaneously.
• Planning (including structural analysis) and integration of the truss construction considering existing building architecture and installations (pipework, ventilation systems, sprinkler radii, etc.).
• Execution planning including coordination and approval processes.
• Acceptance and testing concept for functionality testing of individual components and system tests in the interaction between charging infrastructure and vehicles.
The contractor is responsible for the turnkey realization of the technical infrastructure within the defined interfaces with Lot 2. In addition to the electrical equipment, all necessary construction services (e.g., foundations, cable routes, civil engineering, steel construction) must also be provided.

LOT-0003
Line Locations Bathey, Eilperfeld, and Kabel.
Lot 3 – Line: Charging points in the route network and conversion of stops (Stop "Kabel", "Bathey", "Eilperfeld")

Lot 3 includes the planning and establishment of charging points in the route network at specified stops. This includes electrical installations (transformer-charging technology stations, chargers, mast, charging hood) and all necessary construction services in the area of stops and traffic areas. Additionally, the relevant stops must be upgraded to be barrier-free according to specifications, which entails civil engineering work.

The route charging points must be designed to ensure safe and reproducible operation. In particular, the charging mast must be designed so that the charging hood fits over the vehicle-side pantograph. In addition, reliable access and positioning of the vehicles must be ensured even under adverse weather conditions and considered in the planning of construction services.

Services include in particular:
- Construction of transformer-charging technology stations at line locations including connection to medium and low-voltage supply.
- Delivery and installation of chargers (300 kW per charging point) and masts with charging hoods per charging point.
- Construction of cable systems including all necessary civil engineering work.
- Conversion of bus stops and traffic areas to create the required geometry and operation (e.g., sawtooth bus platforms, widening of roads, form-edges, track guidance, adaptation of ancillary facilities).
- Barrier-free expansion of stops according to current requirements (level entrances, tactile guidance systems, safe pedestrian guidance).
- Commissioning and acceptance including functional verification with vehicles and proof of safe operational procedures (approaching, charging, departing).

The contractor must plan the construction processes so that public transport and traffic safety around the construction site are ensured at all times. Interfaces with network operators, road construction authorities, and approval authorities must be considered and coordinated during the execution of the order.