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Power Tower, Linz
Offices and Administrative Buildings
Project: High-rise office block
User: Energie AG Upper Austria
Location: Linz, Austria
Object Information:
The new group headquarters of Energie AG Upper Austria is currently under construction in Linz. Known as the Power Tower, this nineteen-storey construction will be the first high-rise office building in the world that uses renewable energies – from the sun, the earth and water – to meet almost its entire energy requirement for heating, cooling and fresh air. The solar power station on the south-western side of the Power Tower is one of Austria's largest photovoltaic facilities. Geothermal energy ranks as an equally inexhaustible source of energy. Forty-six geothermal sensors draw thermal energy from deep underground. In summer, the cooler temperature below ground ensures a pleasant climate in the offices. Thermal energy is pumped from the ground-water via two wells in order to operate the heating system in winter. In summer, the well water is mainly used as cooling water for the computer centre. Thanks to the novel process, the office building should use only half of the energy that conventional building technology would require for heating and cooling. The Power Tower saves about 300 tonnes of CO2 per year – an active contribution to climate protection.
Task:
The heating, cooling and ventilation for the Power Tower are supplied and controlled via seven central technical units. Radiators, chilled beams and fan convectors are controlled by SAUTER's ecos intelligent unitary controllers. About 6,000 data points will be linked to the building automation system. A separate bus system is being developed to monitor about 420 fire protection dampers in the ventilation system. Visualisation for the control centre (which also provides a graphic display of monitoring for the fire protection dampers) is implemented with SAUTER's novaPro Open building management software. SAUTER is also developing an energy monitoring system with separate display units.
System employed: Sauter novaPro Open
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