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The heights of the “AquaTurm” design hotel in Radolfzell can be effortlessly scaled by Schindler elevator.
10/2/2017
The “AquaTurm Hotel plus Energie” produces electricity completely independently.
The “AquaTurm Hotel plus Energie” produces electricity completely independently.
© Schindler
The “AquaTurm Hotel plus Energie” produces electricity completely independently.

The first zero-energy high-rise in the world stands on the shores of Lake Constance: In idyllic Radolfzell architect Norman Räffle has converted the former water tower into an energy-efficient design hotel. The “AquaTurm Hotel plus Energie” produces electricity completely independently as it relies exclusively on regenerative energy sources. During the eight years required for the conversion, the project received support from the Federal Ministry of the Environment as a demonstration plant.

Guests reach the 20 rooms with their panorama view are reached using a Schindler 5500 elevator. The cabin design reflects the tower’s techy outside appearance: It consists entirely of stainless steel, with futuristic ceilings and energy-saving LEDs, emphasizing not only a sense of security but of aesthetic appeal, too. As regards efficiency and eco-awareness, the elevator is certainly a match for the building: The weight of the drives and suspension media has been reduced by 50 percent compared to customary plant using steel cables, thus minimizing the energy consumption. To this end, the elevator relies on energy recovery to transform braking energy into power. Thanks to this technology, it requires 30 percent less energy than conventional elevators. Yet at up to three meters a second, you get even to the 11th floor super-quickly. Where the terrace and lounge, open all day, give you a grand view out over nearby Lake Constance. (am)

The architect Norman Räffle transformed the former water tower into an energy-efficient design hotel in an eight-year construction phase.
The architect Norman Räffle transformed the former water tower into an energy-efficient design hotel in an eight-year construction phase.
© Schindler
The architect Norman Räffle transformed the former water tower into an energy-efficient design hotel in an eight-year construction phase.
All signs on environmentally friendly efficiency: The Schindler 5500 generates power by energy recovery.
All signs on environmentally friendly efficiency: The Schindler 5500 generates power by energy recovery.
© Schindler
All signs on environmentally friendly efficiency: The Schindler 5500 generates power by energy recovery.
Aesthetic view: The interior of the elevator, which is held in stainless steel, is set in scene with a futuristic ceiling design and LED lighting.
Aesthetic view: The interior of the elevator, which is held in stainless steel, is set in scene with a futuristic ceiling design and LED lighting.
© Schindler
Aesthetic view: The interior of the elevator, which is held in stainless steel, is set in scene with a futuristic ceiling design and LED lighting.
Easy to read: The Schindler 5500 displays are user-friendly.
Easy to read: The Schindler 5500 displays are user-friendly.
© Schindler
Easy to read: The Schindler 5500 displays are user-friendly.
Symbiosis: The stainless steel handrails provide an additional sense of security.
Symbiosis: The stainless steel handrails provide an additional sense of security.
© Schindler
Symbiosis: The stainless steel handrails provide an additional sense of security.

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