B10 Prefab House + Garage for Electric Car + Sustainable Energy

In addition to housing in the architectural sense, the house of the future will also be a decentralized energy producer and 'provider' for emission-free electromobility. As an intelligent component in the energy system of the future, it is grid-connected and supplies neighboring buildings and electric cars with energy from renewable sources. A new construction technology enables 100% recyclable buildings with high design quality, which are affordable thanks to prefab series production and modular system construction.

Floor plans
About Werner Sobek
About E-Lab Projekt GmbH
About AlphaEOS AG and B10 Future Living Lab
Project participants

ArchitectureWerner Sobek, E-Lab Projekt GmbH
BuilderE-Lab Projekt GmbH
Energy conceptWSGreenTechnologies
ElectromobilityDaimler AGKonstruktion: SchwörerHaus
ManufacturersSky-Frame, CLIPSO, Leicht
Testing and researchAlphaEOS AG and B10 Future Living Lab
LocationStuttgart, Germany
PhotographyZooey Braun


At the beginning of the project was the vision of an innovative and sustainable prefab house, which not only generates all the energy needed in-house from sustainable sources and that can be 100% recycled into the material cycle. The building should also create a link between the built environment and electromobility - and show ways of optimally coordinating energy generation and energy consumption at the local level through a smart grid.


The prefab house is located at Bruckmannweg 10, in the heart of the famous Weissenhofsiedlung in Stuttgart. Built in 1927 within a few months, this settlement on the Killesberg was like a revolution in construction. The designs of various world-famous architects showed how we can build and live in the future. Parts of the Weissenhofsiedlung were destroyed and rebuilt after the war - except for the property in the Bruckmannweg, which lay fallow since 1945. Here, for a period of three years, appears B10, a new forward-looking building that shows how innovative materials, designs and technologies can sustainably improve our design environment.


The research project - named "B10" after its location in Bruckmannweg 10 - is an active house. Thanks to a sophisticated energy concept and self-learning building control, it generates twice as much energy itself - from sustainable sources. With the surplus gained, two electric cars and the listed building of the architect Le Corbusier (since 2006 the home of the Weissenhof Museum) have been supplied. Upon completion of the research project, the prefab house will be completely dismantled, rebuilt elsewhere or 100% recycled. The property is then returned to the city of Stuttgart in its original condition.

In an initial phase of use, interested visitors can find out more about the energy concept and the applied construction technology in B10 prefab house. In the second phase of use, the building will be inhabited free of charge by two students. During the entire project period, energy generation and energy consumption as well as a large number of other highly relevant data for building research are continuously measured and scientifically evaluated at the University of Stuttgart.


The developer of the project is E-Lab Projekt GmbH, a project company of the non-profit Stuttgart Institute of Sustainability Foundation e.V. (SIS). SIS is a non-profit association. It supports and develops methods and technologies for sustainable construction. SIS combines science with industry and crafts. The association was founded in 2011 and has its headquarters in Stuttgart. Further information can be found at http://www.sis-stiftung.de/verein.php

Description from architects

Active House B10 is part of a research project examining how innovative materials, structural designs and technologies can improve our built-up world in a sustainable manner. Thanks to a sophisticated energy concept and a predictive, self-learning building control system the house generates twice as much energy from sustainable resources as it actually requires for its own needs.

The surplus energy is used to power two electric cars and – utilizing smart grid technology – the neighbouring house built by the architect Le Corbusier (home to the Weissenhof Museum since 2006). Combining mobile and permanent infrastructures is an extremely promising approach towards achieving an integrated and decentralized power supply to serve the needs of both electro-mobility and the built-up environment.

Throughout the entire life of the project the consumption and generation of energy as well as a large spectrum of data relevant to building research will be measured on a continual basis and scientifically evaluated at the Institute for Lightweight Structures and Conceptual Design (ILEK) of the University of Stuttgart.

B10 is part of a network of projects known as "Shop window LivingLab BWe mobile", in which some 40 projects are being promoted in the Stuttgart and Karlsruhe regions. The project is supported by the Federal Ministry of Transport and Digital Infrastructure in Berlin. The state capital Stuttgart has made available property belonging to the city for a period of three years to allow the project to be implemented.

The building plot is located in Bruckmannweg 10, which is in the heart of Stuttgart's famous Weissenhof Estate. In the 1920s the estate was a ground-breaking signal for essential improvements to our built-up environment. Located on the Killesberg hills Active House B10 is following the innovative character of the estate and transferring it to new realms – where real-estate and mobility are considered and designed as an integral unit.

B10 dovetails the energy systems of electro-mobility solutions and buildings to an overarching integral control system. As a consequence, it combines the charging infrastructure and the building services equipment to generate, store and manage energy in a central element – that in turn makes B10 the link between the user, building, vehicle and the smart grid.

As well as its energy efficiency the building offers important design innovations. B10 was planned and industrially prefabricated within a few months. It was then assembled on-site in just a day. The diverse constructive innovations of the building include, for example, the use of just 17 mm thick vacuum glazing in the form of a storey-high glazed front. Other important innovations include the installation of a prefabricated technology rack with a central cable harness, fold-down facade elements (that fulfil a dual function as a patio), a fully recyclable timber-and-textile wall construction et cetera.

As is the case with all research buildings designed by Werner Sobek, B10 requires a minimum of resources and is completely recyclable. As a consequence, it fulfils all of the requirements demanded by the Triple Zero standard: the building generates more energy than it needs itself (zero energy), it does not produce any emissions whatsoever (zero emissions) and it can be returned to the materials cycle without leaving behind any residual waste (zero waste).

Description from AlphaEOS AG and B10 Future Living Lab

The Aktivhaus B10 serves alphaEOS as an experimental prefab house for the testing of new technologies and as a showcase for the networking of buildings and electromobility. The term "active house" coined by Werner Sobek stands for buildings that generate more energy than they themselves need alone or in conjunction with others (in a so-called active house network). It stands for buildings that can actively react to changes in the external space or in the interior, if these affect the energetic performance of the building or the comfort of the users. With other buildings, energy producers, energy stores and energy consumers, active houses can form a self-organizing network with the goal of the greatest possible energy self-sufficiency.

A unique project

A house that generates twice as much energy from renewable sources as it needs for operation and intelligently provides the excess for electromobility and electricity - that was the vision of the B10 Active House. A challenge on the whole track and a project that has no equal.

For alphaEOS, however, the Aktivhaus B10 is more than just a research project. On the one hand, the extraordinary architecture and the prominent building site in the Stuttgart Weissenhofsiedlung attract visitors from all over the world. On the other hand, we and our customers are always inspired by this place. The prefab house is the perfect environment for meetings and workshops on building and living in the future. For us B10 is therefore a magical place, no matter who we meet here, it always opens a space for new exciting ideas.

The birthplace of the active house

As consortium leader of the research project, alphaEOS AG was instrumental in the implementation of the Aktivhaus vision and was able to make a major contribution to the successful completion and fulfillment of the vision through the ingenious alphaEOS system. The energy concept and the self-learning building management make it possible to provide energy not only to the B10 prefab house itself but also to an electric car and the UNESCO World Heritage Site of the architect Le Corbusier (now the Weissenhof Museum). In cooperation with the University of Stuttgart, the recorded data are scientifically evaluated and used for further development.

A laboratory for the future of living

Here we are testing new networking technologies and developing forward-looking, network-compatible energy management for prefab houses with Active House standard. The enormous demand for home automation has given us ample opportunity to test new and existing technologies. Today we can share this practical experience with our customers to implement innovative projects very effectively.


Thanks to its ingenious energy concept and forward-looking control, the Aktivhaus »B10« at the Weissenhof in Stuttgart generates twice its own energy requirement from renewable sources. The required, highly efficient and yet slim prefab house envelope was made possible by the use of vacuum insulation. The insulation materials Vacuspeed and Vacupor from Porextherm were used. Vacuspeed XPS panels have 3 mm thin XPS laminations on both sides to protect them from film foil damage and to facilitate attachment of the insulation material. The insulation panels were installed in walls and ceilings of the prefab house. For floor insulation, however, the choice fell on the insulating element Vacupor TS-B2-S with a lamination of recycled impact sound insulation panels.

Insulation manufacturer: http://www.porextherm.com/



Floor plans

About Werner Sobek

Werner Sobek stands throughout the world for engineering, design, and sustainability. Our studio comprises more than 350 employees and maintains a global presence. We work on all types of buildings and materials. Special emphasis lies on lightweight structural design, transparent facade systems, and sustainable building concepts. Our work is defined by premium design on the basis of high-class engineering combined with sophisticated green technologies. The overall objective is to reach the highest quality possible – this is also reflected in the company’s quality management system which has been certified according to ISO 9001.

Werner Sobek works with many leading architects such as Christoph Ingenhoven, Barkow Leibinger, Helmut Jahn, Populous, Sauerbruch Hutton, Ole Scheeren, UNStudio, Zaha Hadid Architects, and others. Our company was founded in 1992 by Prof. Dr. Dr. E.h. Dr. h.c. Werner Sobek. He is an architect, consulting and proof engineer for all fields of structural engineering. Prof. Sobek heads the Institute for Lightweight Structures and Conceptual Design (ILEK) at the University of Stuttgart and is chairman of the DFG Collaborative Research Centre SFB 1244 (Adaptive Building Skins and Structures). In addition, he is founder and president of various non-profit organizations such as aed and SIS.

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Werner Sobek AG

Albstraße 14
70597 Stuttgart
Tel +49.711.76750-0
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Werner Sobek Group GmbH

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WSGreenTechnologies GmbH

Albstraße 14
70597 Stuttgart
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Fax +49.711.76750-44

Werner Sobek Design GmbH

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70597 Stuttgart
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Ingenieurbüro htp GmbH

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About E-Lab Projekt GmbH

Address: E-Lab Project GmbH
Albstr. 14, 70597 Stuttgart, Germany
Email: mail@aktivhaus-b10.de
Managing Director: Dr. Frank Heinlein
Website: https://www.aktivhaus-b10.de/

About alphaEOS AG and B10 Future Living Lab

Address: alphaEOS AG, Marienstraße 42, 70178 Stuttgart, Germany
Email: info@alphaeos.com
Website 1: http://www.alphaeos.com/stories-b10.html
Website 2: http://futurelivinglab-b10.de/

Project participants

1. Builder:

E-Lab Projekt GmbH, Stuttgart (a subsidiary of the Stuttgart Institute of Sustainability Foundation e.V., Stuttgart)

2. Architect:

Werner Sobek, Stuttgart

3. Planner:

General planning: Werner Sobek Design GmbH, Stuttgart
Structural design: Werner Sobek Stuttgart GmbH, Stuttgart
Facade planning: Werner Sobek Design GmbH, Stuttgart
Energy concept: WSGreenTechnologies GmbH, Stuttgart
Project coordination: Werner Sobek Group GmbH, Stuttgart
Interface: Werner Sobek Design GmbH, Stuttgart
Building automation: alphaEOS AG, Stuttgart
Lighting design: Candela Lichtplanung GmbH, Stuttgart

4. Executing companies:

Building construction: SchwörerHaus KG, Hohenstein
Foundation: Hanne Bau GmbH, Sankt Johann
Hydraulic system: Beetz-Hydraulik GmbH, Ottobeuren
Glass façade and gutter assembly: Wagner Glas- und Metallbau GmbH, Albstadt
Joinery and terrace covering: Thomas Hasselwander GmbH, Stuttgart
Roof sealing: Klaus Eberhardt GmbH & Co. KG, Lichtenstein
Installation Textile façade: Rafael Schyma Werbetechnik, Freudenberg
Substructure PVT plant: Schletter GmbH, Kirchdorf / Haag i. IF
Corian: Hasenkopf GmbH & Co. KG, Mehring
Linoleum flooring: Forbo Flooring GmbH, Paderborn
Stretch ceilings: Art Design Hahn, Stetten a.k.M.
Light: Candela Lichtplanung GmbH, Stuttgart
Horticulture: Jörg Seidenspinner Garten- und Landschaftsbau GmbH, Stuttgart
Locksmith work Exterior: Rainer Freese Metallbau, Stuttgart
Electric distributor: ISTAB Industrielle Steuerungstechnik GmbH, Freiburg
Linoleum: JMB Merz GmbH, Pfronstetten-Geisingen
Crane works: Scholpp Kran & Transport GmbH, Stuttgart

5. Manufacturer:

Vacuum glass: Beijing Synergy Vacuum Glazing Technology Co. Ltd., Beijing / VRC
Frameless sliding windows: Sky-Frame, Ellikon an der Thur / CH
Textile facade: Facid
PVT modules: PA-ID Process GmbH, Kleinostheim
Vacuum insulation panels: Porextherm insulation materials, Kempten
Thermal hydraulic system: me.Ahrendt GmbH, Idstein
Electric energy storage: Knubix GmbH, Bodnegg
Underfloor heating: Buderus, Wetzlar
Wall and ceiling heating: Variotherm, Leobersdorf / A
Hub: Bumat Bewegungsungssysteme, Hockenheim
External venetian blinds: Warema Renkhoff GmbH, Leinfelden
Stretch ceilings: Clipso, Vieux Thann / F
Kitchen carcass: Leicht Küchen AG, Waldstetten
Doors: Reinaerdt Doors GmbH, Saterland
Sliding doors (interior fittings): Astec GmbH, Albstadt
Fittings: Hansgrohe SE, Schiltach
Ice storage: Haase GFK-Technik GmbH, Großröhrsdorf
Heat exchanger ice storage: MEFA Befestigungs- und Montagesysteme GmbH, Kupferzell
Heat pump: Waterkotte GmbH, Herne
Switch: Albrecht Jung GmbH & Co. KG, Schalksmühle

6. Electromobility:

Daimler AG, Stuttgart

7. Monitoring:

Institute for Lightweight Design and Engineering (ILEK), University of Stuttgart

8. Furniture:

Walter Knoll AG & Co. KG, Herrenberg

9. Expert reports and expert opinions:

Archaeological preliminary investigation and accompaniment: Weihs office, Altenriet
Archival investigation: Inken Gaukel, Stuttgart
Soil expert: Geological office Behringer, Stuttgart
Topographical survey: Ingenieurbüro Köpf, Stuttgart
Material consulting: raumPROBE, Stuttgart

10. Virtual power plant:

Next Power Plants GmbH, Cologne

B10 Prefab House + Garage for Electric Car + Sustainable Energy