TwoLyon, Dominique Perrault Architecture : A new high-rise building (170m) to be built at Lyon La Part-DieuPublished 20/09/2016

TwoLyon, Dominique Perrault Architecture : A new high-rise building (170m) to be built at Lyon La Part-Dieu

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An aid for establishing energy performance contractPublished 20/09/2016

An aid for establishing energy performance contract

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Commissioning : towards a practical handbook for building professionalsPublished 20/09/2016

Commissioning : towards a practical handbook for building professionals

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Post-construction monitoring of Kibitzenau swimming-pool at Strasbourg (67) : objectives achieved!Published 28/06/2016

Post-construction monitoring of Kibitzenau swimming-pool at Strasbourg (67) : objectives achieved!

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An innovative and ecological gardening tower in Romainville (93)Published 28/06/2016

An innovative and ecological gardening tower in Romainville (93)

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Contemporary earthen architecture : Rediscovery of a historical building materialPublished 28/06/2016

Contemporary earthen architecture : Rediscovery of a historical building material

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A gas operated microcogeneration for a net zero energy hospital center for dependent elderly in Ormesson (94)Published 18/04/2016

A gas operated microcogeneration for a net zero energy hospital center for dependent elderly in Ormesson (94)

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Download ShadeUp!Published 11/09/2015

Download ShadeUp!

ShadeUp is a free plugin for Sketchup able to automatically draw horizon blocking masks based on the output given from Carnaval developed by Sober Software. This plugin allows you to easily insert the masks in Trnsys 3D or other building simulation softwares able to import geometry from Skethchup (Design Builder, IES VE,…). This plugin has been developed by Etamine in collaboration with Sober Software.

This plugin is free and you can download it here.

Hope it will be useful for some of you!

ETAMINE adds value to the innovative technical systems of the French Defense Ministry’s new headquarters (Paris 15e)Published 04/07/2014

ETAMINE adds value to the innovative technical systems of the French Defense Ministry’s new headquarters (Paris 15e)

Bouygues Construction undertakes the construction of the French Defense Ministry’s future headquarters, located Boulevard Victor in Paris, throughout a Private Finance Initiative (PFI) with Opal Défense.

© Arte Factory / ANMA

Balard project includes innovative technologies for heating and cooling.

Technical key points:

- Geothermal heat pumps on phreatic water producing heating cooling and domestic hot water
- Free chilling through direct heat transfer with phreatic water
- A heat pump for domestic hot water
- Chillers with dry coolers and a gas boiler for additional heating and cooling.

Some premises such as the data center have a high cooling demand and are not included in the French thermal regulation perimeter (RT 2005). Instead of losing all the heat rejected to cool those rooms, the heat is recovered for the heating of the rest of the building and domestic hot water.

In order to increase the value of such systems that cannot be modelized in the French thermal regulation calculation method (RT 2005), Bouygues Construction asked ETAMINE to provide all evidences of a specific calculation method for this project (“Titre V Opération”).

Using Dynamic Thermal Modelling (TRNSYS software), Etamine established a model of the future headquarters power plant and calculated the energy consumptions of the plot.

These calculations enabled us to upgrade the project from a 31% gain on the regulatory reference consumption to a gain of 52%.

After a year of exchanges with the commission in charge of approving such studies, it was finally approved in June 2014!

The swimming pool of KibitzenauPublished 26/05/2014

The swimming pool of Kibitzenau

On the 12th of july, the swimming pool of Kibitzenau in Strasbourg will reopen its doors, offering 1300m² of pools to the public.
Etamine has been working with the CUS (Urban Community of Strasbourg) on the renovation of the building from the first steps of the design to ensure energy sobriety. Social and educational facilities, the pools are also quite energy-consuming buildings.

This is why this has been particularly efficiently dealt with in the renovation of the Kibitzenau swimming-pool: envelope really well insulated with cellular glass insulation Foamglas to ensure its sustainability, in contact with damp walls. While under construction, a special attention was paid to airtightness of the envelope with the help of Alsatech: an ultrasound test was performed on all the glass frames to ensure their good installation. An airtightness test on total building envelope has been performed by Alsatech. Result is a Q4 value of 1.56 m3/h/m² for a mean target of 2.4, thus representing a gain of 34%!
Technical systems were also selected with a study of the overall costs, considering not only the investment in systems, but also maintenance costs and fuel costs. Heat treatment by a heat pump groundwater, ensuring an extremely efficient energy: 1 kWh of electricity consumed products 5.5 kWh thermal. The hot water for showers and a part of the pools’ water will also be preheated by solar collectors on the roof.

All of these choices have been modeled and quantified precisely using a dynamic building model, updated throughout the design. The pool will soon reopen and be occupied. Etamine will monitor the actual energy consumption of the project for the first three years: an opportunity for commissioning the settings and compare theory of the calculations and reality of the energetic costs.

See reference leaflet.

Architect: DFA - Dietmar Feichtinger Architectes

VEOLIA Environment World Headquarters at Aubervilliers, a building ahead of timePublished 06/04/2014

VEOLIA Environment World Headquarters at Aubervilliers, a building ahead of time

At the end of a consultation for the construction stage, BATEG, a daughter company of VINCI Construction France, was appointed by ICADE Foncière in march 2014 to build the new world headquarters of VEOLIA Environment at Aubervilliers outside Paris.
Designed by Dietmar Feichtinger Architects, this 45000 m² office building is due to host the central services of the different activities of VEOLIA. A double environmental certification labelling is forsaken: BREEAM “Excellent” and HQE “Outstanding Passport”. Standard thermal performance is 40% better than the regulation level, which allows the building to seek Effinergie+ label without the addition of a PV plant. Beyond these flattering grades, a number of innovations enhance the building environmental performance, these are not considered in the different certification schemes. Among those, the use of passive cooling of the building through underground water source and adiabatic evaporative air cooling. These low energy cooling systems are fully effective since the thermal emission in the offices is performed through “hybrid radiant cooling panels” which involve the concrete ceiling slab in the heating and cooling process and allow for night-time natural cooling as a compensation for a limited day-time cooling capacity.

Architect: DFA - Dietmar Feichtinger Architectes

Haut-Rhin Department CAF HeadquartersPublished 17/03/2014

Haut-Rhin Department CAF Headquarters

Companies are due to present their offer by the end of march for the construction of the CAF Headquarters at Strasbourg. This 10 000 m² office building was designed by DFA and is HQE certified. Building users pay much attention to thermal comfort and energy consumption. Heating is provided by a 100% wood energy heating plant and there is only passive cooling through underground water source connected to “hybrid radiant cooling panels”. High acoustic comfort standard is achieved altogether. A difficulty was to combine the building owner preference for wooden floor together with HQE certification acoustic requirements. It was achieved thanks to an appropriated space planning.

Architect: DFA - Dietmar Feichtinger Architectes

Strasbourg Exhibition ComplexPublished 17/03/2014

Strasbourg Exhibition Complex

The future Strasbourg Exhibition Complex (110 M€HT, 30 000 m² exhibition area) is in its design stage. This project, designed by DFA, has high environmental expectations. The architecture makes full use of north orientated sheds which reduce by 75% the use of electric lighting. Heating is provided by a wood energy thermal plant, which is due to cover the heating need of the entire neighborhood. Thermal comfort in summer is entirely achieved through dessicant cooling air handling units, with no use of HFC. Regeneration of dessicant is performed with solar collectors and wood energy.

Architect: DFA - Dietmar Feichtinger Architectes

Wind analysis in an open shopping complex in Cagnes-sur-Mer (06)Published 04/03/2014

Wind analysis in an open shopping complex in Cagnes-sur-Mer (06)

ETAMINE has expanded its range of tools with a wind modeling and analysis software for urban areas: UrbaWind developed by Meteodyn. This CFD software (Computational Fluid Dynamics) allows an accurate assessment of wind flow conditions with an objective of assessing climate pedestrian comfort in outdoor areas. It also allows an estimation of natural ventilation potential in buildings through the calculation of pressure coefficients on the facades.
SOCRI, the developer of the Polygon Riviera project in Cagnes-sur-Mer, an opencast 94,000 sqm shopping complex designed by L35 which includes a cinema multiplex, a bowling, a fitness center, business premises and a hundred shops, wanted to assess the influence of climatic phenomena, especially the wind, on the outside comfort conditions for visitors.
As part of its mission of sustainability consultancy, Etamine developed through UrbaWind software a modeling of the project in order to apprehend wind sensitive areas of the site wind and test the effectiveness of the proposed solutions to reduce discomfort periods for visitors on these areas.
This wind analysis has been divided into three steps:
- firstly, the site has been fully defined in a 3D model that incorporates the construction volumes, site topography, location of the vegetation and its porous properties, and finally the location of areas of interest for the analysis;
- then, for each significant wind direction for of the site, the software has automatically generated the mesh and boundary conditions of the CFD model and solved numerically the equations of fluid mechanics in order to converge on the wind flow conditions in the model ;
- finally, the results for each wind direction have been correlated with climate data of the site to achieve a mapping of climate conditions on the site, showing informations on frequency of exceeding the threshold of 3.6 m / s, introduced by the CSTB, corresponding to the first appearance of discomfort (when faces feel the sensation of the wind, and the hair is disturbed).

The results allowed us to identify several sensitive areas and therefore we were able to make concrete proposals to reduce climatic discomfort: for example, we made the recommendation to create a dense wooded area on the north boundary of the site along the bed of Malvan river, in order to create a screen against the entry of the winds from north sector which impact the comfort on two pedestrian gateways and on a significant site entrance area. Several landscaping solutions have also been proposed to protect other sensitive areas of the site. These facilities helped making the shopping center more welcoming and pleasant for visitors, with reduced costs.

A Minergie Standard Building for the university in AnnecyPublished 02/09/2013

A Minergie Standard Building for the university in Annecy

The “Maison de la Mecatronique” building was built for the engineering school of Savoie and the LAPP laboratory in Annecy-le-Vieux, and delivered in January 2013. It contains, in a total surface of 3 000 m², around 1 200 m² of offices and 800 m² of laboratories and computer room. Designed by WOLF Architect with ETAMINE for the environmental en energetic performance, the building respects the Minergie Standards and was labelled Minergie in May 2013.
The Swiss Minergie Label ensures an energy consumption lower than 40 kWh of primary energy per m², for the heating, domestic hot water and ventilation uses. It is widely accepted across Europe, with more than 15 000 buildings Minergie certified. Several standards exist within the range of Minergie, from the low consumption building to the positive energy buildings.
ETAMINE assists contractors and designing teams to obtain any of the Minergie Standards, from the advices in the designing phase, the energy calculations based on the Swiss SIA 380 norm, to the relation with the French Minergie Certifier.

Environmental designing of a footbridgePublished 29/05/2013

Environmental designing of a footbridge

ETAMINE participated in the conception of the footbridge over a railway in Villetaneuse, double winner of the first A+ Awards in New York on the 16th May, 2013, organized by Architizer website. The footbridge, deigned in 2009 par DVVD agency and delivered in 2011, creates a link between the north and south of Villetaneuse, over the station. It is the winner of both the Jury Award and the Popular Choice Award, in the Architecture + Mobility category.
Concerning the environmental designing, our main goal was to limit the natural resources exhaustion and to reduce the energy consumption used to produce the construction material of the footbridge. Rather than the usual concrete and steel, we chose to use as much possible of a renewable material: local wood.
The other environmental aspects developed during the designing and construction phases of the footbridge are the energy consumption in use, thanks to a lighting optimization, and the reduction of the impacts during the construction phase, via a maximal prefabrication

Architect : DVVD Ingénieurs Architectes Designers
See web site

The importance of technical adjustments at the building deliveryPublished 23/04/2013

The importance of technical adjustments at the building delivery

A local public worker agency moved into its new working building in Ste Foy Les Lyon in May 2010. The building was conceived to reduce its energy consumption of 20 %, compared to the up-to-date regulation.

After realizing during the first winter that the energy consumption was very high and the thermal comfort not satisfying, a task was given to ETAMINE to optimize the performance of the building and reduce the global energy consumptions.
To accomplish this task, ETAMINE lead a measure campaign in the building:
- Temperature and humidity in 10 different zones for two months
- Infrared thermography on the building
- Measure of air flows and speeds inside the working spaces

This campaign showed several problems, including:
- An important air leak problem around all the windows
- Several unnotified stops in the ventilation system
- Several undone adjustments on the ventilation and heating systems

The dynamic thermic simulation model was used to estimate the part of the consumption due to each of these problems. It was estimated that without any new investments, other than adjustments and fixing the window air leakage, a reduction of more than 35 % of the heating consumptions could be obtained.

All the fixings were done at the end of the first year on the windows, heating and ventilation systems. This lead to a reduction of the global energy consumptions of 50 %, form 246 kWhEP/m² for the first year, to 119 kWhEP/m² at the end of the second one, and the heating consumption was even divided by 3.

This example shows the importance of the adjustments of the technical installations to achieve the expected performances. ETAMINE decided to invest a lot towards its clients to assist and help them in the optimization of the energy performance after the delivery. Several buildings are following this process, including the building Woopa in which we moved a year ago.

See reference leaflet.

Designing the first Positive Energy High School in the Région Rhône-AlpesPublished 14/03/2013

Designing the first Positive Energy High School in the Région Rhône-Alpes

ETAMINE was the winner of a contest in June 2012, with Arche Architect, to design and build the first Positive Energy High School of the Région Rhône-Alpes, in Saint Genis Pouilly, near Geneva. The building will have a heating energy consumption smaller than 15 kWh/m², despite the rough winters. 800m² photovoltaic panels will then produce each year more energy than the total consumption of the building.

To reach this energy performance, ETAMINE has assisted the architect and engineers, in designing a building easy to use, compact and extremely well insulated, with 20cm of mineral wool on the façades, 24 cm of polyurethane insulation on the roof, and wooden windows with a Uw coefficient of 2.4 W/(m².K). The building is designed with a wide area in the middle, for the schoolyard and a green space. This organization presents many benefits, to reduce energy but also on other aspects:
- Rain water dealt with in the center area
- Comfort of the users
- Easy maintenance

Currently near the end of the design phase, the secondary school should be in use in September 2015. Then ETAMINE will have a task to follow up the real consumptions, compare them to the estimated ones, and give advice to the users in order to reach in use the energy performance targeted.

After two positive energy primary schools in Montpelier, currently in construction, ETAMINE uses its expertise for its clients, in order to design positive energy building.

See fiche référence

Architect : Atelier Arche

The marriage of the architecture and the technique : EDF Headquarters Building - ReimsPublished 15/02/2013

The marriage of the architecture and the technique : EDF Headquarters Building - Reims

A new building is under way in the EDF (Electricity of France) site of Clairmarais, and should be achieved in October 2013. The Nicolas Michelin and partner’s architecture agency designed a out-of-state building of 4000 m², recognized as a very low energy consumer. EDF show by the way its leadership in this issue.
The design is based on a technical architecture, with the air entrances under the windows for instance, and uses the natural or passives elements to work: wind (for ventilation), inertia (for comfort and refreshment) or underground water (for heat and cold production). These items enable the building to consume five times less than a classical building. Performance is completed by a rather good insulation of walls and roofs, or good windows. The energy consumption is evaluated at 90 kWh per m² per year, that is 60% better than the French rules. A monitoring will check the reach of this target.
Comfort of users was a priority of the design team. The ambiance is warming equally, thanks to a innovative system: the heating an refreshment are made by tubes inside the concrete slab, which spread the same temperature in every space of the building. The incoming volume of air is heated or refreshed too. A large natural lighting gives office users a pleasant sensation during work time. Noises are absorbed by perforated layers of plaster under the concrete slab.
To be complete, EDF engaged this operation in a HQE certification procedure. The building will be one of the 8 others certified projects of the Champagne-Ardenne district.

See reference leaflet.

Architects: Agence Nicolas Michelin et Associés

The Grand Hotel Dieu in LyonPublished 11/08/2011

The Grand Hotel Dieu in Lyon

Assisting Eiffage Immobilier, Etamine intervenes in the environmental field for this great emblematic refurbishment and extension project. The site, part of the French listed buildings, was built partly during the 16th century, and partly during the 19th. The surface of 62 000 m², including 12 000 m² of new buildings, will be divided into:
- A five star hotel of 13 000 m², for 145 bedrooms, run by Intercontinental,
- 12 000 m² of retail areas, a 3 000 m² museum, a conference centre,
- Offices areas whether refurbished or new-build.

All the buildings will obtain a BREEAM certification, and the new-build offices aim at the French certification PEQA.

See reference leaflet and web site.

Architects: AIA Architectes
Architect of French listed buildings: Didier Repellin
Constructor: Eiffage Immobilier

PFI of the French department of defence on the site BalardPublished 01/08/2011

PFI of the French department of defence on the site Balard

Etamine assists the firm Bouygues Construction on the great Private Finance Initiative of the new department of defence buildings on the site Balard.
Etamine gets involved in the conception and commits with the building manager Exprimm about the future energy consumptions of the development. The calculation of the energy consumptions are led by dynamic thermal simulations, meaning a precise work on the hypotheses, more and more realistic, in order to guarantee the results.

See reference leaflet.

Architects: Agence Nicolas Michelin et Associés, Wilmotte et Associés, Ateliers 2/3/4
Constructor: Bouygues Bâtiment Île-de-France
Maintenance manager: Exprimm (Bouygues Construction subsidiary) and Dalkia France

ETAMINE becomes « BREEAM International assessing organization»Published 18/11/2010

ETAMINE becomes  « BREEAM International assessing organization»

BREEAM (BRE Environmental Assessment Method) is the leading and most widely used environmental assessment method for buildings. It has been developped by BRE (Building Research Establishment), the British equivalent for French CSTB.

The BREEAM International scheme is declined into nine sections, each of which consisting of a number of issues. Each issue seeks to mitigate environmental by defining a performance target and assessment criteria that, when they are achieved, allow the assessed project to achieve a certain number of BREEAM credits.
The final score is calculated from the sum of the BREEAM credits and translated into a rating benchmark, which can be “pass”, “good”, “very good”, “excellent” or “outstanding”. Because of this rating benchmark, BREEAM assessment method differs from French environmental method HQE®, under which a project can either be “certified” or “not certified”.
Tanguy Mulliez, engineer at ETAMINE since 2009, is now licensed “International BREEAM assessor”, he’s therefore allowed to assess certification projects under the BREEAM Europe commercial scheme, which covers office, retail and industrial new or refurbished buildings.

See web site.

Woopa : 10 500 m² positive energy office building in Carré de Soie, at Vaulx en Velin, near LyonsPublished 28/09/2009

Woopa : 10 500 m² positive energy office building in Carré de Soie, at Vaulx en Velin, near Lyons

The project consists of 10 500 m² offices and retail, and 92 social dwellings. The total built area is 20 000 m². The future users are cooperative companies involved in ethic funds, social housing, and building engineering, as well as representative institutions from the cooperative sector. It is there that Etamine and Quadriplus Groupe will join their premises at the end of 2011. The two operations, offices and dwellings, were selected by the PREBAT program and as such will endorse a detailed monitoring of their energy performance during two years after completion.

See reference leaflet and web site.


Contractor: Premier Plan (Offices) and Rhône-Saone-Habitat (dwellings)
Architects: Rau and Soho

The first positive energy building in Auvergne is coming outPublished 25/09/2009

The first positive energy building in Auvergne is coming out

The works for the premises of Credit Agricole in Aurillac (15) have started. This 6 100 m² building was designed by AFAA Architects. Il minimizes energy consumption and CO2 emissions, thanks to its wood structure, its high insulation, triple glazing, and a bioclimatic green house on the south façade. The photovoltaic plant that is integrated in the roof allows overcomes the total energy consumption of the building. The building is expected to be completed within no more than 14 months!

See reference leaflet.

Architect: AFAA Architecture

Opening of the international school of ManosquePublished 23/09/2009

Opening of the international school of Manosque

Opening of the international school of Manosque Michel Vauzelle, President of the Provence Region, inaugurated on September 14th the first batch of the works of the international school of Manosque, which cover administration, catering facilities and a primary school. 1000 children will be hosted upon final completion of the works. The total work amount is 35 M€HT, to be completed in a short two year duration by Léon Grosse enterprise. Although the performance objectives were set in 2005, the BBC level is reached without taking into account neither the photovoltaic electricity production, nor the wood energy bonus (EP/EF = 0,6). This school has a number of salient figures : integration in the near-by environment (35cm intensive green roof), excellent thermal comfort (shaded galleries around open air patios), high insulation of façades, and efficient technical equipment (80% heat recovery double flux ventilation system, 1200 m² photovoltaic array).

See reference leaflet.

Architects: Jean-Michel Battesti and Rudy Ricciotti

Minergie® dwellings in Epagny (74) : very satisfactory air leakage testsPublished 19/09/2009

Minergie® dwellings in Epagny (74) : very satisfactory air leakage tests

ALDES realized the air leakage tests of the windows frames in may 2009. The results under 4 pa are I4 = 0,25 m3/h/m² and the air change rate under 50 pa is 0,50 h-1. These results are in the range of Minergie-P standard. The success is due to constant implication during the works, so to correct all errors.

See reference leaflet and the powerpoint presentation that was made at ADEME Congress in Lyons in June 2008.

Contractor: SOGIMM
Architect: Atelier Galbe