Practices

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Olbersdorf: Comprehensive refurbishment of a school listed as a historic monument

Highlighted Case December 2010
A model project for the research topic of “Energy-efficient schools”: The school in Olbersdorf provides an example of a successful compromise between historic conservation and energy-based refurbishment. In order that the building, which...
Key aspects Facade systems, Glazing + windows, Daylight systems, Optimised lighting, Ventilation + heat recovery, Active cooling, Regenerative + passive coolingProject description With its main building...

An example of a very low energy house in the East of France

Highlighted Case November 2010
This wood frame house of 162 m² has been built in 2008. It is equipped with a 8.5 kW wood stove, a solar thermal system for domestic hot water production (7.5 m² of solar collectors and a 500 litres water tank with an additional 3 kW...

Cool Roofs in Europe - Initiatives and Examples

Highlighted Case October 2010
Five case studies were implemented, within the framework of the Cool Roofs project, to demonstrate cool roof capabilities in real buildings, in terms of improving the thermal conditions in non-air conditioned buildings and reducing the...

Exemplary Retrofitting of a School (EROS) in Stuttgart, Germany

Highlighted Case September 2010
In the EROS Project the potential for the energy efficient retrofit of a typical school building in West Germany was demonstrated. The renewal of the space heating system was combined with improved insulation to yield synergetic effect....
1. Building description The building consists of three parts with different ages and is used as a primary school and a secondary school (Hauptschule). This combination is common in Germany. The block of buildings to be...

Stuttgart–Burgholzhof: 800 low-energy residential units with solar supported local district heating

Highlighted Case August 2010
The Burgholzhof project is a good example for the development, realisation and monitoring of 800 residential units plus a school building all designed to be in low energy quality. The heating and domestic hot water supply was realised by a...
Project background In 1995 a new urban planning instrument called “development measure” (Entwicklungsmassnahme) was used for the first time by the city of Stuttgart. Trustees of the city bought a property that was formerly...

AVAX S.A. headquarters

Highlighted Case July 2010
This narrow, east facing office building measures 3050 m². It uses adjustable external vertical shading devices to reduce solar gain in the morning, allowing the building to operate without active cooling for most of the year. Night...
General information ASHRAE degree days heating/cooling: 1011 / 3102 KdIndoor design temperatures/humidities: The mean indoor temperature varies from 21.5 °C during winter to 28.5 °C...

Abalone: a zero energy head office building

Highlighted Case May 2010
The head office of the company Abalone (human resources management) is really close to the zero energy level and should in the future have an over energetic production of 18.3 kWh/m²a. The construction works started in 2006. The building...
2 wind turbines models : - 3 wind turbine free standing (height 15 m – power 10 kW (each))  for a total yearly production of 45 MW/a) - 3 roof top wind turbines (height 3 m) total yearly production : 15 MWh/a Photovoltaic panels :...

Certified passive building in Poland

Highlighted Case April 2010
The basic goal of the construction design “Lipińscy Dom Pasywny 1” was the adaptation of current official standards to the local climate conditions of Wrocław. Based on this construction design a small passive house was build. The house...
1.       Introduction Increase of energy prices and need of natural environmental protection has caused growth of interest in passive houses also in Poland. Although, it is difficult to show buildings, that are strictly corresponding to...

Ulm-Böfingen: Retrofitting of Catholic Community Centre using Vacuum Insulation Panels

Highlighted Case March 2010
Over 90% of all building projects of the diocese Rottenburg-Stuttgart with an annual investment from about 40 million Euros are for renovating existing buildings. With the retrofitting of the community centre “Zum Guten Hirten” they would...
Original Buildings: The community hall is a two storey reinforced concrete construction. The external walls are made of 24 cm thick concrete. In some areas the walls of the lower level have a layer of 11.5 cm sand-lime...

An efficient naturally ventilated office building (Rijkswaterstaat building in The Netherlands)

Highlighted Case January 2010
The design objectives of this 1750 m² office building were to develop a sustainable and ecological building, integrated with its surroundings and providing a high level of individual control and comfort for occupants. Sustainable materials...

Stuttgart-Sonnenberg: Reduction of CO2 Emissions in a Nursing Home

Highlighted Case 2009 Highlighted Case
A retirement apartment building built in Stuttgart-Sonnenberg in 1965 is a good example of what can be achieved when a major renovation is combined with an energy efficient retrofit concept developed by a holistic design team. The...
The seven story main building of the retirement home was built in 1965 with originally 116 beds. It also incorporates a kindergarten. In 1974 a further building was added as a nursing home with 55 beds. To this second building no...

Edifício dos Serviços Administrativos da Parque EXPO’98, Lisbon, Portugal

Highlighted Case 2009 Highlighted Case
The building incorporates both natural and mechanical ventilation. Basic ventilation is provided by the HVAC system which operates when either heating or cooling is required, or when natural ventilation provides insufficient fresh air....
Key points concerning the designCombined natural ventilation and mechanical ventilation with air-conditioning and some heat recovery. Use of perforated shading panels to reduce direct solar gain while allowing natural day-lighting. Use of...

Green box on the roof: an example of office extension in Lyon

Highlighted Case Highlighted Case
The scope of the project was to increase the office surface through a roof extension, having a surface of around 900 m2, following sustainability and energy efficiency criteria.   One key aspect of the project was the reduced life-cycle...

BRIGADE - CONSTRUCTION OF A FORESTRY BRIGADE, PASSIVE PROJECT AND ECO-CONSTRUCTION, IN THE FOREST OF SOIGNES IN UCCLE, BRUSSELS, BELGIUM

Highlighted Case Highlighted Case
Project type: New Construction Building Type: Equipment, forestry services Construction Year : 2018 Delivery year: 2018 Climate zone : [Cfc] Marine Cool Winter & summer- Mild with no dry season. Net Floor Area: 852 m2 Other...

HoHo Vienna: the first city office built of timber in Vienna

Highlighted Case Highlighted Case
HoHo Vienna is one of the tallest wooden buildings in the world and a lighthouse project for sustainable timber construction. Thanks to the level of thermal insulation, resource conservation, energy efficiency and sound insulation, it has...

Svart hotel in Norway: how to reach the Plus Energy target

Highlighted Case Highlighted Case
The architect firm Snøhetta, in collaboration with Arctic Adventures of Norway, Asplan Viak and Skanska, has designed “Svart”, the world’s first Plus Energy hotel in a Northern climate. The target “Plus Energy” has been translated by the...

NHT – Austria

Highlighted Case Highlighted Case
klimaaktiv bronze*   New apartment building completed in 2020. The entire residential complex is planned to be barrier-free. It is the new construction of a residential complex as passive...

BVH 373 House 8 - Austria

Highlighted Case Highlighted Case
Klimaaktiv Silver *   The construction of the building was aimed, on the one hand, to offer affordable sustainable housing and on the other hand to plan an extension with quality of life...

Bullitt Center – Seattle (USA)

Highlighted Case Highlighted Case
Backed by its mission to protect the Pacific Northwest’s natural environment and promote healthy and sustainable ecosystems, the Bullitt Foundation wanted their new headquarters to be built to the highest level of sustainability. They also...

Technical High School for Health Professionals in Ettelbruck

Highlighted Case Highlighted Case
The Lycée pour Professions de Santé in Ettelbruck, now the largest wooden building in the Grand Duchy, is a pilot project. It is indeed the first Luxembourg public building with positive energy. It is also the first in Luxembourg to aim...