Built in 1994 as the private residence and special project of Rolf Disch in Freiburg, the Heliotrope is claimed by its designer to be the first building in the world to create more energy than it uses, being reliant on entirely renewable power, and being emissions free and CO2 neutral.
Rolf Harris | Rolf Hochhuth | Rolf Singer | Rolf Köhler | Rolf Martinsson | Rolf Stommelen | Rolf Liebermann | Rolf Hachmann | Rolf-Dieter Heuer | Rolf Wolfshohl | Rolf van der Vlugt | Rolf Stranger | Rolf Steiner | Rolf Landauer | Rolf Gehring | Rolf Ellmer | Rolf Dieter Brinkmann | Rolf | Rolf Wilhelm Brednich | Rolf Wallin | Rolf Steininger | Rolf Schimpf | Rolf Pfeifer | Rolf Nesch | Rolf M. Zinkernagel | Rolf Mulka | Rolf Mellde | Rolf Maximilian Sievert | Rolf Majcen | Rolf Kirkvaag |