Trade 04 · Charging infrastructure
E-mobility
From the grid connection to the first charge: we build rapid charging parks – trench, cable, foundation, station and commissioning.

The path of power
From grid connection to charge.
Grid connection
Substation or low-voltage distribution – this is where the route begins.
Cable route
Trench, conduits and pulling the underground cables.
Foundation and installation
Setting foundations, installing and connecting power unit and chargers.
Commissioning
Testing, commissioning, connecting via the charger's web interface.
Items
What we build for charging parks.
Item 04.10 · m
Cable route and cable pulling
From the grid connection or substation to the charging point: trench, conduits, underground cable.
Item 04.20 · pc
Foundations and conduits
Foundations for chargers and power units, conduits with spare capacity.
Item 04.30 · pc
Installing rapid chargers
Setting up and connecting rapid charging stations with 150 and 300 kW.
Item 04.40 · pc
Commissioning
Commissioning the station and connecting it via the charger's web interface.
Item 04.50 · pc
Maintenance and upgrade
Annual preventive maintenance and power stack upgrades to manufacturer specification.
Certificate
Trained by the manufacturer.
Certificate of 14 November 2023
Manufacturer training in rapid charging technology
Jens Kalwer
Jens Kalwer has completed the manufacturer's training for rapid charging stations: installation, commissioning and annual preventive maintenance of 150 and 300 kW stations as well as power unit upgrades.
Sites
Photos from charging park construction.
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Enlarge photoLocations
Where we build charging parks.
Service areas and truck stops
Rapid charging on the motorway.
Retail charging parks
Car parks of supermarkets, hotels and restaurants.
Company premises
Charging points for fleet and staff.
Municipalities
Public charging points on streets and squares.
Site board
Request a project.
Send us your bill of quantities, route plan or simply location and scope. We will get back to you personally.
- Project
- Your project
- Contractor
- Kalwer Netzbau, Bergedorf
- Contact person
- Jens Kalwer
- Working hours
- Monday to Friday, 8 am – 5 pm
- Phone
- 040 66969 120