Transsolar Blog
Introducing Klima Engineering in the Building Sector in Lebanon as a tool for Comfort and Sustainability

“Buildings consume more than 45% of the energy in a typical community, and if the energy for travel between residence and work is included, the ratio increases to 75%.” (Transsolar GmbH)

For my individual project, I will work on studying the advantages of introducing climate engineering as a tool to increase user comfort, promote sustainability and provide a financial solution for an existing school facility in Bekaa, Lebanon. Bekaa is an elevated valley with different climatic characteristics over the year which includes both a hot arid summer season and a cold winter season. This requires the development of unique comfort strategies relevant for each season. I selected this site because it combines characteristics of both the typical Lebanese mountainous terrain climate, which covers more than 70% of the country, and the hot arid climate, which prevails around the year in the adjacent region. Therefore the strategies I develop can be implemented in these diverse regional contexts.

I am focusing on a school for two main reasons of interest. First, through developed comfort strategies students will understand the importance of sustainability and will have a chance to get a better quality of education (comfort-productivity relationship). Second, optimizing energy consumption for a facility with a high number of users will have a drastic impact on the energy bill. Consequently, schools are also likely to be keener to adopt and realize the proposed strategies. 

To carry out my project, I will first assess the existing envelope and HVAC systems and the behavior of the school. Later, I will work on reducing the energy required to operate it. The study will also include a cost benefit analysis in which current operation costs of the building will be estimated and compared to cost savings of adopting the presented strategies. The goal will be to provide the existing facility a concrete recommendation to optimize their building performance. ©By Fadi Charaf

Shigeru Ban Wins 2014 Pritzker Architecture Prize

Congratulations to Shigeru Ban:

One of the projects we did with Shigeru Ban:

Aspen, Art Museum:

Founded in 1979, the Aspen Art Museum (AAM) is a noncollecting museum for contemporary art located in Aspen, Colorado (USA). The new Aspen Art Museum designed by Shigeru Ban Architects is located in the center of Aspen which will house their ever-expanding travelling exhibitions program in 30’000sft for Art and culture. The architectural scheme is a building volume in a predominantly heating dominated, cold climate. Glazed facades allow an inside outside connection and the required transparency. Meanwhile, the galleries must meet the
stringent indoor climate conditions required for display of high quality artwork. Thus the zoning strategy aims to minimize direct exposure
of gallery spaces to exterior facades with extreme diurnal and seasonal swing (solar and temperature). Circulation areas and offices taking advantage of passive solar gains and natural ventilation surround the gallery spaces and acting as climate buffer zones for the gallery spaces.
The publicly accessible rooftop allows a stunning view over Aspen and the stunning mountain range.


imageSolutions to Turkish Green Building Market Barriers

The aim of my project is to develop a sustainable building design guideline for developers, which includes a list of energy efficient technologies, natural and cost effective solutions or alternatives depending on climate conditions.

In my thesis, I tried to answer “What are the motivators and barriers of the Turkish Green Building Market?” by surveying practitioners in the sector.  The results of the survey revealed the barriers as high initial cost, lack of government support (no energy efficient regulations and incentives) and shortage of experienced professionals.  Hence, my individual project at the Transsolar Academy is to find specific ways to overcome these barriers with the assistance of Transsolar employees’ wide knowledge and experience. The core idea of the project is to find out the most economic, effective and natural design strategies for residential and commercial buildings located in Turkey, in terms of ventilation, heating, cooling, lighting, etc. I believe that these strategies will eliminate most of the barriers and contribute greatly  to the possible solutions shown on the daisy petals, and lead to the development of  the Turkish Green Building Market. © Handan Gündogan

Thomas Auer, Transsolar 1. April 2014, 19.00 Uhr

1. April 2014, 19.00 Uhr afo, Herbert-Bayer-Platz 1, 4020 Linz

Kooperation von afo architekturforum oberösterreich und Sustainable Architecture + Spatial Tactics
Gastgeber: Matthias Böttger

In der Zusammenarbeit mit führenden Architekturbüros entwickelt Transsolar seit nunmehr über 20 Jahren Energie- und Klimakonzepte für Gebäude bzw. Städte. Der Zusammenhang zwischen Energieeffizienz und Aufenthaltsqualität ist hierfür eine zentrale Grundlage. Die im Team entwickelten innovativen Konzepte sind integraler Bestandteil des architektonischen Konzepts und nehmen damit – aus Sicht des Ingenieurs – Einfluss auf die Architektur. In diesem Kontext arbeitet Transsolar Stuttgart/München/New York/Paris mit Büros wie Behnisch, Sauerbruch Hutton, Sanaa, Frank Gehry, u.v.m.  Für die Architekturbiennale im Jahr 2010 entwickelte Transsolar eine Wolke (Indoor) – Cloudscapes –, die auf eine ästhetische Weise das Thema Klimaengineering visualisiert und für eine breite Öffentlichkeit erlebbar macht. Die Frage ist, wie dieses know-how genutzt werden kann, so dass Gebäude mit möglichst wenig Einsatz von Technik und Energie ein hohes Maß an Aufenthaltsqualität erzielen. Diese Fragestellungen lassen sich auch auf den städtischen Kontext übertragen. Stadtklima, Maßnahmen zur Vermeidung bzw. Minimierung des „urban heat island effects“ mittels der urbanen Form, Grün- bzw. Wasserflächen, etc. erhöhen die Aufenthaltsqualität und reduzieren gleichzeitig den Energiebedarf zur Klimatisierung der Gebäude.

Zahlreiche Projekte zeigen, dass Nachhaltigkeit architektonische Möglichkeiten nicht zwangsläufig einschränkt, sondern durchaus bereichern kann.

Thomas Auer ist Co-Geschäftsführer von Transsolar Energietechnik. Der Ingenieur für Verfahrenstechnik aus Stuttgart ist seit vielen Jahren international in der Lehre aktiv, u.a. an der Universität Yale in New Haven (USA) und der Ecole Speciale d’Architecture (ESA) in Paris. Seit 2014 ist er Professor für Gebäudetechnologie und Bauklimatik an der Technischen Universität München.

Post-Oil City Living without Fossil Energy

ECOLOGY.DESIGN.SYNERGY in Taschkent at the O’zbekiston tasviriy san at galereyasi/ Art Gallery of Uzbekistan in Cooperation with Goethe-Institut Taschkent

The exhibition Ecology.Design.Synergy has opened on March 6, 2014 in the Art Gallery of Uzbekistan/ O’zbekiston tasviriy san at galereyasi and will be shown until April 12th, 2014. Matthias Rammig was representing Transsolar and had a great welcome and was confronted with great interest. image



Schulen sind nicht nur Lernorte, sondern Lebensorte für unsere Kinder

Ein Vortrag von Prof. Thomas Auer am 26.03.2014 in der Freien Waldorfschule in Stuttgart.

Poverty … Can KlimaEngineering Have an Impact?

Improving Situation in Local Souq in Shbien Al-Qanater


Egypt is considered one of the most vulnerable countries to climate change, mainly because of rising sea levels and increasing temperatures. This project is about improving a daily local market in a very typical city in the Delta, called Shbien Al-Qanater city, almost 35 kilometers north of Cairo. This local market is a typical activity that you can find in every city of Egypt, where local farmers sell their products. The market and the buildings surrounding it face multiple problems such as the huge amount of organic waste produced every day and thermal discomfort, i.e. moderate to extreme heat stress in the summer and cold stress in winter, as well as lack of energy supplies. These problems influence the productivity and health of the people. In such a context where the city is unplanned and suffers from poverty and spontaneous patterns of development, the question arises: how can climate engineering be employed to find solutions for these areas? The solutions should be affordable and take into consideration the available local resources and the local levels of technology.

The project follows a result-oriented methodology, which starts with outlining the energy and sustainability situation in Greater Cairo. Then we will focus on the market and its surrounding buildings. The next step is to define the main causes of heat stress, pollution, and insufficient energy supply. To define these causes, we will search for and compare the most suitable tools that can assess issues of urban heat island, urban energy balance and outdoor comfort. Ultimately, this will lead to the main measures of intervention. © Eslam Mahdy

2 nouvelles récompenses pour Garden by the bay,  au MIPIM cette fois-ci !

-          Projet écologique le plus innovant

-          Prix spécial du jury


Félicitations à toute l’équipe pour ce beau projet !

Final chance to submit your voting for John and Frances Angelos Law Center!

The voting for this year’s Architizer A+ Awards is ending tonight.

So if you haven’t had a chance to submit your vote, please do so today. Please go to

Transsolar is proud that the new John and Frances ANgelos La Center in Baltimore is nominated in the category “Architecture + Sustainability”.

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The application process
for 2014 is now open.

The symposium "Connect Ideas – Maximize Impact" taught us about the importance of the "majority world" and education on our path to making greater impact.

The TS Academy Fellows 2013, primarily from the "majority world," connect us to areas of the world where our impact has been negligible so far. We are gaining knowledge and discover the opportunities that exist for climate engineering in their home countries. We are confident our Fellows will increase their impact upon returning home by applying the knowledge and skills they gained through the year long program.

Design for Outdoor Comfort

Great cities are made by great outdoor spaces. Good thermal comfort on urban spaces will increase the intensity of outdoor activities.

As climate engineers we always have been curios how we could inform design processes for best adaptation to the local climate. For our outdoor comfort projects we developed new design tools based on up to date human bio-metereological parameters.

Design for Outdoor Comfort is an interactive publication by Transsolar about strategies, how to measure and calculate outdoor comfort as well showcasing concepts for MASDAR (Abu Dhabi) and the FIFA World Cup 2022 Qatar.

There is a lot of common sense what people like in their cities. So cars are hardly found on any favored place. Enjoy and let us know "what place do you like in your city".

What is Green & Sexy?
About us
What is Green & Sexy?

Green & Sexy is a blog about sustainability in the built environment by Transsolar.

The building sector is responsible for almost 50% of all domestic CO2 emissions and energy use (Europe and North America) and has to reduce carbon emissions by 90% by 2050 (compared to 1990).

How is this possible? Collecting and connecting ideas to maximize impact is the goal of this blog.