DTZ Montage & Sanierung

Onshore wind turbines already produce cheaper electricity than new power plants for generating energy from fossil fuels and they have an excellent environmental footprint. The industry also offers a sustainable workplace, including us as a service team for installation.

Concrete repair includes technologies for extending the durability of (steel) concrete. The highest demands are placed on the expertise and special material knowledge of those carrying out the work.

While DTZ Betonbau GmbH creates the foundation and with it the basis of your wind turbine, we complete the individual parts supplied by the manufacturer to form a functioning power plant for regenerative electricity.

• storage space & logistics planning and coordination (incl. large crane work)
• pre-assembly & assembly of steel, reinforced concrete & hybrid towers in segmental structure
• assembly & installation of turbine house as well as hub & rotor blades
• installation & cabling of the wind turbine's e-module according to manufacturer's specifications
• drawing in of steel tension litz wires and coordination of the bracing of individual tower segments

The main purpose of the tower of the plant is to reach the necessary height to take advantage of the kinetic energy of the wind. However, the heart of any wind turbine is the turbine house and its components. Only through the interaction of rotor and stator the mechanical rotation of the wheel gets transformed into electrical energy. In technical jargon, this construction is simply called a turbine.

We offer a wide range of maintenance and refurbishment measures to prevent your wind farms from failing due to structural defects. Whether high-voltage pylons, transformer stations or wind turbines, we adapt to your existing situation and deliver customized solutions.

• Angle sealing on steel tower foundations
• Sealing and renewal of connection joints on steel tower foundations
• Joint sealing
• Crack sealing through coating
• Crack injection by compression technique
• Reprofiling of concrete damages
• Core drillings in reinforced concrete to verify the resistance to pressure
• Sleeve installation for the protection of existing reinforced concrete segments
• Casting with high-strength concrete

Our teams can already look back on over 50 successfully renovated Enercon GmbH wind energy plants at 13 locations - and the trend is rising.

We have expanded our range of services in 2022 to include the replacement of large components.

Large components such as rotor hubs, rotor blades and generators are valuable parts of a wind turbine. If they fail or are even damaged by external factors, the only option is often the complete replacement of the individual large components.

Due to its complexity, the replacement of large components is a challenging task that requires a high degree of organization in the numerous work steps involved.

• Disassembly of the large component
• Assembly of the renewed component

Due to our many years of experience, we are able to complete the exchange of large components in the shortest possible time, despite the high requirements.

Sooner or later, every wind energy system reaches its intended service life. More and more frequently, the large components installed will show signs of damage. For this reason, we offer the dismantling of wind turbines.

• disassembly of rotor blades & turbine house
• deconstruction of steel & concrete tower segments

We also organize the professional disposal of all components and the logistics of reusing the system.

The deconstruction and removal of the foundation can be realized within our group of companies, as DTZ Betonbau GmbH already has experience in this field.