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Environment & Resources

Sustainability forms part of our corporate culture

________________ With the help of mechanized tunnelling technology tunnel projects have become possible in ground conditions or at depths and lengths which would not be realizable or feasible using conventional methods - also due to strict environmental regulations. As the market leader for mechanized tunnelling technology, Herrenknecht not only sets new standards in matters of safety and efficiency, but also continues to be a role model in terms of environmental protection.

Eco-friendly use in all areas of application

Thanks to mechanized tunnelling technology, traffic infrastructures can be built with only minimum intervention; this protects the environment and leaves people and nature almost undisturbed. Efficient underground supply and disposal systems also benefit the environment and avoid untreated wastewater from polluting rivers and lakes. Using reliable Herrenknecht technology, tunnels can be built even through delicate littoral ecosystems, complying with strict environmental regulations. With the trenchless pipeline installation method, the company also provides an efficient and ecologically sophisticated technology, avoiding the destruction of often unspoiled nature. All application areas have one goal: to keep intervention in nature as low as possible.

Energy-efficient tunnel boring machines

Herrenknecht also assumes responsibility in terms of energy efficiency. In times of scarce fossil fuels and continuously rising energy prices, the worldwide demand for innovative technologies that reduce energy consumption is increasing. Therefore, Herrenknecht AG is a member of the "Energy Efficiency - Made in Germany" initiative, which was established by the Federal Government as an energy efficiency export initiative. Our products are developed taking into consideration energy efficiency and savings in energy costs.

Herrenknecht relies on deep geothermal energy

Our products create essential prerequisites for the targeted exploration of energy sources. Herrenknecht is strongly committed to the development of geothermal energy with new technology, events and the financing of a professorship for technical petrophysics in Karlsruhe. Geothermal energy is a decentralized energy source; electricity and/or heat can be generated there where it is needed. And no high-voltage transmission lines of thousands of kilometers are necessary. The deep drilling rigs made by Herrenknecht Vertical GmbH have drilled down to a depth of 5,000 meters so far. The "Terra Invader 350" drilling rigs have been used successfully in different projects in the Bavarian municipalities of Mauerstetten, Dürrnhaar, Kirchstockach, Kirchweidach and also in Hanover (Lower Saxony). These are research as well as power and heating plant projects.

In-house renewable energy production

At its headquarters in Schwanau, Herrenknecht has established its own reference project: a near-surface geothermal plant for heating and cooling our administrative buildings. It will produce 324,000 kilowatt hours of energy per year, thus saving 31 metric tonnes of CO2 (compared to conventional heating systems). Furthermore, two photovoltaic plants on the roofs of the workshops have been producing approximately 251,000 kilowatt hours of electricity per year since 2005 and 2007.

 

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