Transsolar Blog
Celebrating the Goodbye Transsolar Academy Fellows 2013/2014…..

Celebrating the Goodbye Transsolar Academy Fellows 2013/2014 and welcoming the Fellows of 2014/2015 with the setup of the installation of Ahmad Nouraldeen’s “Earth Shell” image




Energieeffizienz-Kongress - Prof. M. Schuler über Energieeffizienz bei Nichtwohngebäuden

Energieeffizienz-Kongress - Prof. M. Schuler über Energieeffizienz bei Nichtwohngebäuden am 23. Oktober in Heidelberg[tt_news]=150&cHash=e996c54514c4e52cc8f6faa301ff889b

We are honored to be a part of the Team. What an amazing project.

World Energy Forum 2014

Matthias Schuler about Sustainable Architecture and Cities.

When?: October 22nd, 2014

Where?: Montjuïc Palace, Barcelona, Spain

For more information please click the Link below:

Show off your DIVA skills for a chance to win $750!

How are you using DIVA? It’s time to showcase your DIVA skills in the first ever DIVA Day Student Competition held by DIVA-for-Rhino. The winner will receive a $750 stipend to cover travel costs to DIVA Day, free conference registration, and will have their poster displayed during DIVA Day 2014 in Seattle, WA

DIVA-for-Rhino is a daylighting and energy modeling plug-in for the Rhinoceros modeler. DIVA carries out environmental performance evaluations such as Radiation Maps, Photorealistic Renderings, Climate-Based Daylighting Metrics, Annual and Individual Time Step Glare Analysis, LEED and CHPS Daylighting Compliance, and Single Thermal Zone Energy and Load Calculations.

How to enter:

Must be an undergraduate or graduate student

Submit application form and (1) ARCH D (24” x 36”) poster (portrait or landscape) including images and text describing your project.

Submit to by September 6, 2014

Deutsche Post Tower rewarded for being consistently awesome in the last decade


We are proud to be part of the team that helped Post Tower achieve such high performance. The CTBUH or Council on Tall Buildings and Urban Habitat has given its 10 year award in recognition of this building’s continuous value and performance 10 years after its completion.

Transsolar played a vital role in this project by developing the energy concept: focusing on achieving the maximum thermal and visual comfort while minimizing the impact on the environment. A typical building of this size uses around 376 kWh/m ² of energy per year. By using building-integrated technology such as two elliptical volumes and an atrium that work together with site and wind orientation, as well as a double skin, operable façade and stack ventilation, Post Tower consumes only 75 kWh/m ² of energy per year. That’s about 79% less energy usage.  If Post Tower were a 10 year old boy, he would be consuming 399 calories out of the normal 2000 calorie range…and still be healthier than the average boy.

imagePost Tower’s operable windows

imagePost Tower’s atrium

These types of awards provide incentive and reward for the growing “green-building” industry. Check out the other awards for tall buildings here.

Secret rockclimbing spot in Italy


There are any number of reasons to visit Italy –the food, the beaches, the gorgeous… art.  But what you probably didn’t know is that nestled in the valley just south of the Italy-Austrian border, is Brixen (or Bressanone), home to the new Vertikale Kletterhalle. It is probably one of the most beautiful rockclimbing facilities in the world and I’m not even exaggerating. See for yourself:

I spoke with Christian Frenzel, who developed the climate concept for the Kletterhalle.  The goals were to have year-round access to climbing for the highly physically active community in Brixen and to do it with as little barrier to the outside as possible. Architects Wolfgang Meraner and Martin Mutschlechner, both climbers themselves, worked with Christian to design a perforated exterior shade that works like some Harry-Potter-esque cloak of invisibility; it is virtually non-existent when looking out from the inside.  So daylight and views of the mountains are spectacularly unhindered but climbers are still protected from the sun and solar gains into the space are dramatically reduced—so much that the building runs solely on natural ventilation, without cooling, for most of the year. 

For the few times mechanical cooling is necessary, like during seriously intense league tournaments, the radiant floor is fed by a geothermal system.  And even though only 50% of the radiant floor is exposed after the fall-break-padding, this maintains comfortable conditions, because the design team considered the climbers’ expectations that they would be warm up top anyway. 

So while everyone else is climbing out in the hot Brixen sun, rest assured that you now know a spot where you can ascend in comfort.

Reining in the forces of nature

The operable windows on the outer skin of the Manitoba Hydro Tower in Winnipeg flutter open like the wings of butterflies, a gentle signal to the people within that they can open the windows on the inner skin if they wished. The sun-drenched atrium of the Angelos Law School at the University of Baltimore hums with student activity, the roar of an air handling unit uncommonly absent. A child walks through an indoor cloud in Venice.

Inspiring. Enlightening. Provocative.  This is just a glimpse of the art and science behind Transsolar’s work.

Welcome to Transsolar’s Climate Engineering universe, where we handpick and share stories of the best destinations, the roads less travelled, and the hidden sweet spots. Get ready for interviews with eccentric engineers, sneak peaks on the latest creations brewing in the shop—maybe even pick up a few conversation pieces of value for your next social event—and, finally learn, what is climate engineering anyway?

So tune in next week when Transsolar (rock)climbs to the top!

(photo credit: Tetsuo Kondo Venice Bienale 2010)



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We've changed our look! But you can still access old blog posts in the Archives link. We may gradually revive archived posts which are oldies but goodies. Stay tuned!

Call for applications
is now closed.

Fellowship notifications will be made beginning of June 2014.

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.