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Solar Decathlon Europe 2021 logo

Solar Decathlon Europe 21-22

​The Solar Decathlon Europe 21 (SDE21) is the university competition for sustainable building and living in cities. The main concept of the competition is “From the idea to fully operational buildings”.  Eighteen teams from eleven European countries has been accepted to the competition, with Team C-Hive from Chalmers, being the only Scandinavian contestant.   

Team Sweden – C-Hive from Chalmers 

The urban development challenge of C-Hive/Team Sweden’s choosing is “Renovation & addition of storey”, and the team is "interested in exploring how live/work spaces can form a public/private interface around the kitchen and living areas." The team behind the C-Hive project say they "aim to develop a component and cellulose-based ultra-lightweight building system using additive manufacturing. This would allow the construction of rooftop addition of stories to cause minimum disruption whilst using a fully recyclable renewable resource which is a waste product of the Swedish forestry industry."

Read all about the C-Hive project and the team behind it on their website:     

Connection with education

The Solar Decathlon project is integrated with ongoing courses and design studios of the School of Architecture at Chalmers, such as ‘Material and Detail Studio’, ‘Sustainable Building Competition’ and ‘Dare to Build’, but also welcome students from other parts of Chalmers to join and contribute theur special knowledge to the project.  

About the competition  

Design – build – operate’ – is the unique principle of the Solar Decathlon. Unlike other architecture competitions, teams do not only design their houses, they also need to build and operate them. Remaining faithful to this successful principle, the SDE21 consist of two parts: The Design Challenge  and  The Building Challenge.
Both challenges will be assessed according to ten different contests (hence "Decathlon"), which are: Architecture, Engineering & Construction, Energy Performance, Affordability & Viability, Communication, Education & Social Awareness, Sustainability, Comfort, House Functioning, Urban Mobility and Innovation. In total, there are four different ways for the teams to earn points: jury evaluation, task completion, tests and monitored performance. The team achieving the highest combined score will be the winner of the SDE21.    
The main focus of the ten contests is determined by the venue and specific emphasis of the current year’s competition. For the Solar Decathlon Europe 21 (SDE21), the main emphasis lies on sustainable urban building and living.  Five of the ten contests therefore address urban challenges. The remaining five contests represent the core challenges of the SDE – Architecture, Communication, Comfort, Sustainability, and Energy Performance. 

Page manager Published: Tue 03 May 2022.