The building was originally constructed in 2012 with traditional fluorescent luminaires. At that time, control consisted solely of PIR detectors with relays above the ceiling, controlling both lighting and ventilation. Due to the need to replace the old luminaires in accordance with the RoHS Directive, a thorough assessment of the installation was carried out with a focus on both economics and sustainability. In addition, the project aimed to achieve BREEAM Excellent certification.

Zenisk AS, led by Eyveig Antonsdottir and Magnus Hatlemark, was awarded the contract to rehabilitate the lighting system. The task was to meet high standards for cost efficiency and sustainability, while also ensuring the use of luminaires that delivered a refined and comfortable lighting design.

After evaluating several alternatives, wireless lighting control with Casambi was selected. Calculations compared to a wired DALI system showed the following results:

• 20% cost reduction
• 60% improvement in CO₂ footprint

Casambi – A Natural Choice

With more than 14,000 luminaires planned – 7,000 of which are already installed – it was crucial to choose a solution that was scalable, reliable, and future-proof. Casambi was selected not only because of previous positive experience and strong cost and CO₂ performance, but also due to its flexible wireless control, which is ideally suited for large buildings.

Sensor-Based and Intelligent Programming

The entire building is sensor-controlled using Casambi sensors. Each meeting room and support room has its own sensor and switch, while open-plan areas are controlled by time-based sensors. Programming was completed in advance using construction drawings in Casambi Pro, where all devices—luminaires, sensors, and switches—were defined and grouped.

Once the devices are powered, they appear in the Casambi Pro app, are paired, and automatically receive the predefined control settings. Installation was carried out floor by floor, and the programming was thoroughly tested to ensure sensors activate the correct luminaires and switches function as intended.

Integration and Innovation

In this project, Casambi is not just a lighting control system—it also serves as an integration platform:

• Cloud Gateway extracts API data from the sensors and sends signals to the building’s BMS system to map usage patterns for meeting rooms and support spaces.
• Pharos, a DMX-based multimedia system, receives information via the Casambi Ethernet Gateway and controls lighting, sound, and visuals in auditoriums and event areas—providing full flexibility regardless of protocol or supplier.

User Experience and Operation

Once programming is completed, all functions can be remotely controlled and modified via password-protected access. In daily operation, lighting is controlled solely by sensors and switches, while Casambi Pro and the app remain in the background for adjustments if needed.

Users have been very satisfied with the upgraded lighting. As Magnus Hatlemark puts it:

“It’s a completely new experience—intuitive, efficient, and sustainable.”

An Alternative Contracting Model

Project owner Eivind Bengtson and project manager Magnus Hatlemark (Hatlemark AS) delivered the project as a construction contract, rather than a traditional design-and-build contract. Through strong project management, direct procurement, and skilled consultants, the project saved the client significant costs while achieving the high quality required in terms of equipment, lighting quality, and operation—something that would most likely not have been possible under a design-and-build model.

Luminaires with Casambi Drivers Supplied by:

• Signex – “Sky Objects” installation in the conference hall
• Erco – Track systems and spotlights
• Zumtobel – Recessed downlights and pendant luminaires for support rooms
• Nortronic – LED strips and LED Neon, Casambi sensors and switches, plus programming in collaboration with Magnus Hatlemark
• Rebel Lighting – Decorative pendants
• Glamox – Office luminaires in double-height areas
• Fagerhult – Corridor luminaires
• XAL – Meeting room luminaires, recessed wall washers and downlights
• Kinly and LTB – Event lighting and AV equipment