The plans include an administration building with offices, a canteen, a sports room, and recreation areas, as well as a spacious workshop and service hall, outdoor and green areas, and extensive parking facilities with integrated charging infrastructure for electric buses. The workshop hall will be equipped with twelve workshop bays and eight service bays, some with roof workstations, crane systems, and service pits, as well as two drive-through washing facilities and an underbody washing system.
The construction of the new depot involves impressive quantities of materials and structural components: 11,240 m³ of in-situ concrete and 3,845 m² of prestressed hollow-core slabs will be installed, along with 1,510 tonnes of reinforcing steel, 3,280 m² of masonry, and 100 tonnes of structural steelwork. The halls include 120 cantilever columns with socket foundations weighing 9 tonnes each, 97 main beams – the largest measuring 30.30 meters in length and weighing 49 tonnes – as well as 492 secondary beams.
A key focus of the new construction is the charging infrastructure for electric buses. The depot will be equipped with a total of 259 charging points and 203 charging units. These include 194 chargers with 150 kW each and nine HPC chargers with 300 kW, seven of which can be upgraded in the future to up to 450 kW. The charging infrastructure primarily provides hood charging, with optional plug-in charging under consideration. The installed capacity amounts to 31.8 MW with a grid connection capacity of 10 MW. Sophisticated load and charging management, as well as integrated depot management systems, ensure efficient operation. In addition, a complex IT network with enhanced security standards is being installed. The 36 charging-technology buildings are organized into nine station rows, each with two 1,600 kVA transformers, medium- and low-voltage systems, and up to 24 chargers per row. The depot’s own medium-voltage ring structure and air‑cooled systems with noise absorbers ensure reliable and safe system operation. The charging points and operational processes are designed for various bus sizes, from 12‑meter standard buses to 18‑meter articulated buses and double-deckers. The structural design includes a total of 192 fire-wall panels with a combined length of 607 meters, dividing the charging areas into separate fire sections and ensuring a particularly high level of safety. In addition, 49 trusses with a total length of 940.5 meters and 155 supports are being installed to carry the structures of the charging zones. The entire depot is connected to BVG’s central control systems, supporting efficient, safe, and future-proof management of electric bus operations.
Uniform components, flooring, and systems enable optimized service and maintenance processes, while high safety standards for fire protection, building security, and IT infrastructure are implemented.
“With this new construction, we are creating the infrastructural foundation for an emission-free bus fleet and consistently driving forward the transition toward a future-oriented public transport system in Berlin,” emphasizes Ingo Hiller, Senior Project Manager at ZECH Bau SE, Berlin branch. “Delivering a turnkey depot for an all-electric bus fleet demonstrates how rapidly the planning of high-performance charging infrastructure for large commercial vehicle fleets is advancing. All the more, we are pleased to implement our innovative and flexible charging solutions in the federal capital,” adds Dr. Stephan Nahmer, Managing Director of SBRS GmbH.