An innovative, decentralised energy and technology concept makes a high level of flexibility possible. Filigree Strexx office luminaires from Siteco with daylight-dependent lighting control are standard.

The Köln Triangle, a 103 metre-high glazed tower, is situated directly on the Rhein and opposite to the Cologne Dome. The name is a play on the ground plan of the skyscraper that resembles a rounded triangle. The symbiosis of intelligent architec-ture, high tech and a location that is ideal in terms of accessability makes the Köln Triangle unique. The building, designed by the architects Gatermann + Schossig and completed in 2006, additionally places importance upon innovative building technol-ogy and energy efficient lighting solutions from Siteco.

The building is characterised by an unusual ground plan: a reuleaux triangle con-structed with three convex sides and a round centre resulting in variable room depths. This in turn allows a high degree of flexibility when designing the interiors: combi-office, open-plan office, single office and other variations are possible. The generously volumetric corner areas of the triangular form are eminently suitable as meeting zones, conference rooms, relaxation areas or reception lobbies.

An innovative, decentralised energy and technology concept allows flexibility accord-ing to building level. Filigree office lighting with daylight-dependent control from Siteco have been installed as standard. Daylight is submitted to permanent fluctua-tions from the seasons of the year or passing cloud formations. According to the lighting ambience, insufficient daylight must be substituted with artificial light. Strexx luminaires from Siteco were therefore deployed in the offices that are partially equipped with sensor technology from Tridonic. The lighting system registers whether the office is occupied and adapts the lighting ambience automatically and with regard to energy criteria according to the current requirements.

A special characteristic of the modularly designed Strexx luminaires are their ex-tremely compact construction size and slimline design. The axially oriented ar-rangement harmonises perfectly with the rounded centre of the building and allows a flexible office furniture arrangement.

Glare-reduced light coupled with an installation directly above the workstation is made possible with the combination of an indirect beam central module and an asymmetrical beam end module. In this way the Strexx can replace up to six louvre luminaires, meaning less light points and lower use of energy. Spacial and task area lighting blend together harmoniously.

Siteco lighting solutions were relied upon on all building storeys.
Asymmetrical beam distribution ceiling washers with light directed upwards lend a uniform, large-area illumination deep into the room space. And outside of the work-ing areas as well the soft and homogenous lighting creates a pleasant atmosphere.

The Cologne Triangle is the highest tower in Cologne on the right hand side of the river, and was planned by the Landschaftsverband Rheinland (LVR) for its Rhein Benefits Society. As a result of this the building bore the name of LVR Tower during its planning and construction phase. The building is well known as the headquarters of the European Agency for Aviation Safety.