The Glanhof multi-story housing complex in Klagenfurt, Austria, is a crystalline zig-zagging structure that integrates hundreds of photovoltaic elements. Vienna-based Architects Collective created a solar design that integrates photovoltaic panels into the street-facing facade, which helps make the building virtually energy autonomous.
The complex comprises three structures housing 150 living units organized around a green courtyard. All of the 50 to 75-square-meter subsidized apartments have large balconies overlooking the courtyard. The project was conceived as a residential mix of different profiles-from families with kids and single parents to singles and the elderly. The fully-glassed ground floor features common areas such as a cafe, buggies and bicycle parking and multi-use spaces.
Pivotal to the project are its impressive solar design and energy efficiency. Energy for hot water and heating is mostly generated by the rooftop solar panels, a heat pump system and a geothermal reservoir. Excess energy is stored in a geothermal brine reservoir and released when the weather turns cold.