Heliotrope (building)
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The Heliotrope is an environmentally friendly housing project by German architect Rolf Disch. There are three such buildings in Germany. The first experimental version was built in 1994 as the archite
Heliotrope in Freiburg
Heliotrop Rotating House
Bird's eye view of the Heliotrope in Freiburg
Heliotrope-Hotel Schloss Waretenstein
Energy-plus building
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An energy-plus building produces more energy from renewable energy sources, over the course of a year, than it consumes. This is achieved using a combination of microgeneration technology and low-ener
Heliotrope (building)
…Disch also designed the Sonnenschiff office complex. PlusEnergy is a concept coined by Rolf Disch that indicates a structure's energy efficiency. A PlusEnergy building holds a positive energy balance, generating…
Energy-plus-houses at Freiburg-Vauban in Germany
Prototype in Germany
The Solar Settlement with the Sun Ship in the background: two PlusEnergy projects in Freiburg