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Photo Credit: Onix Building, Lille – Architect: Dominique Perrault

Over the past two years IES has collaborated with Somfy and Philips Lighting to analyse their shade & light combined solution “Light Balancing System” and its potential impact on energy savings. Most recently IES analysed the potential energy savings of a pilot project, the Onix office building in Lille. In this blog post, we invited Christelle Granier from Somfy to tell us a bit more about the collaboration, why they chose to work with IES and the importance of manufacturing companies integrating with the world of Building Physics and Building Performance Analytics…

We (Somfy and Philips) wanted to find a way to provide building design professionals with an effective and worthwhile product that would fit in with a holistic design process and help them to design both comfortable and energy efficient buildings. To do this we needed to validate the impact that the Light balancing system had on energy consumption.

To us, IES was the best choice because it is well known for its advanced dynamic simulation tools with the capabilities to conduct the most accurate analysis. After working closely with its Business Development Consultant, Luc Delestrade for over a year, he taught us a great deal which changed the way in which we demonstrated our solution.

More and more building regulations are being implemented worldwide and current ones are becoming much more stringent. We knew that in order to help industry professionals comply with these regulations we had to validate the Light Balancing System and prove its effect on a buildings energy consumption. In our pilot study, the Onix Building in Lille we proved that the System could reduce energy consumption by 29% in one year.

We understand that Building Physics and performance analytics is key to validating manufacturers building products.  Collaborations such as this one are extremely important for the future of sustainable building design. IES was vital in helping us prove our work. Automated shading should be part of the lifecycle management of the building. Working with IES helped us to democratise this product and make it more accessible to more building professionals.

The collaboration was a deep learning experience on both sides. We now have a much better understanding of where the Light Balancing system fits in the building lifecycle analysis process and how it effects occupant comfort and energy efficiency. The product should be analysed as part of a holistic model looking at HVAC, lighting and façade which includes automated blinds.

I’d like to extend a big thanks toIES, our collaboration helped to leverage our knowledge and understanding of building physics and performance analytics. I look forward to a future that holds further industry collaborations that help validate manufacturer products and their potential energy savings through building performance analysis.

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