- Building Type : Other commercial buildings
- Construction Year : 2013
- Delivery year : 2013
- Address 1 - street : 1, rue du Président Kennedy 78340 LES CLAYES SOUS BOIS, France
- Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
- Net Floor Area : 25 328 m2
- Construction/refurbishment cost : 55 000 000 €
- Number of Visitor : 90 Visitor
- Cost/m2 : 2171.51 €/m2
Primary energy need
(Calculation method : )
One Nation is a shopping center "outlet" dedicated to ETDE luxury fashion brands. It is located in Clayes-Sous-Bois, west of Paris and near the Palace of Versailles (less than 10 km).
The architect took into account the life cycle of the building in the long term. Hence the shopping center is built on a regular grid of concrete for easy modulation how businesses are distributed and to adapt over time to new shop cncepts and to the future needs of visitors.
The public areas are open to the outside and protected from the weather with a beautiful glass roof. This eliminates the air conditionning and heating consumptions in common areas.
Heating is provided by two gas condensing boilers equipped with modulating burners with oxygen regulation.
Air conditioning consumptions represents the largest energy use (before heating). It was optimized through chilled water production groups allowing free chilling for the building. The indoor air is treated with air handling units incorporating energy recovery exchangers with a thermal efficiency of 85%.
To increase the floor area ratio by 20%, the building was designed following the CERTIVEA repository "NF Commercial or Sports Buildings with HPE."
In order to achive this goal, the Energy Performance and Associated Quality level is assessed and all measures have been taken to meet this standard and make this "outlet" a Low Consumption Building.
Sustainable development approach of the project ownerThe Owner wanted an exemplary building in terms of energy performance and achieve a commercial complex that is a showcase dedicated to sustainable development, while meeting the expectations of future tenants in terms of environmental quality. The objective was to show that, even in the context of a shopping center that has a bad reputation regarding its regular environmental footprint, we can make efforts to preserve the planet by choosing ingenious systems to save energy.
Architectural descriptionThe architecture of One Nation Paris was designed by the firm of architects AWO. The architect, Gregory Genaux designed the mall around the light and natural lighting. This building has a contemporary architecture, sleek design, raw materials: the envelope of One Nation Paris "is organized around three elliptical and majestic patios, enrolled in a set of curves defining the visitor walks. These shapes of glass and concrete and free fluids create, in every corner of the building, luxurious bright and grandiose spaces, ."
See more details about this projecthttp://www.onenation.fr
Thermal consultancy agency
Bureau d'Etudes Alain Garnier
Type of market
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- 53,00 kWhep/m2.an
- 113,00 kWhep/m2.an
- 0,74 W.m-2.K-1
- Condensing gas boiler
- Individual electric boiler
- Water chiller
- Double flow heat exchanger
- Other, specify
- 30,00 %
Chilled water unit with Free Cooling
Monsieur Philippe Pineauhttp://www.climaveneta.com/EN/
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Outdoor unit for the production of chilled water, equipped with semi-hermetic screw compressors dedicated for the use of R134a.
High efficiency of operation of the chiller.
These ice water production units are equipped with FREE COOLING batteries. When the cooling load demand is continuous during the winter season or in any case when the outside temperature is less than the return liquid temperature of the installation.
In FREE-COOLING mode the fluid is cooled by the outside air, reducing the work of compressors; can even cancel completely the work of the compressors.
This process allows energy savings without compromising user comfort
Construction and exploitation costs
- 900 000,00 €
Reasons for participating in the competition(s)
Shopping centers generally need significant amounts of energy (occupations, significant artificial lighting, etc...). More specifically, energy consumptions are related to air conditioning (enormous even in winter) to the point where air conditioning consumptions exceeds heating consumptions.
Alain Garnier engineering consultants looked for a way to reduce these consumptions by implementing production units of chilled water, allowing free chilling in the building.
This method, produces cold by using the difference of temperature with the outside to trigger a natural cooling, without switching compressors on.