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172 LUXEMBOURG Strassen 2011 Horizon Horizon is a near-zero energy building in Luxembourg City. It combines strong concern for architectural efficiency with the desire for very high energy performance. It is equipped with 900 sqm of photovoltaic cells which produce the greater part of its energy needs, exceeding national regulatory standards. In addition to a high quality protection against the sun’s rays, thermally-activated concrete slabs regulate both heating and cooling. The ventilation system combined with a heat recovery unit increases comfort while reducing energy costs. The building design is simple and flexible, combining open plan with individual office units. A multitude of design options are available to satisfy a wide range of working styles. CERTIFICATION HQE COST 9 000 000 EUR (without tax, fees, land and additional costs) CONCEIVED BY POLARIS ARCHITECTS SARL info@polaris.lu www.polaris.lu T. +352 26 38 99 10 HOUSETECH SA consulting building technologies engineer www.housetech.lu STINTEC SA consulting structural engineer PROJECT SA consulting engineer in other disciplines www.progroup.eu CLIENT GROUPE SCHULER