Running on solar may seem simple enough, but it isn’t always the most affordable option. Some institutions, such as the famed solar high school in Copenhagen, can afford to maintain thousands of panels. But for those on a budget, alternatives such as solar blocks may be a more suitable option. Either way, engineers continue to develop more efficient methods for going solar. Designed in Zurich, this concrete roof prototype can generate solar power.
The self-supporting, doubly curved shell roof has multiple layers: the heating and cooling coils and the insulation are installed over the inner concrete layer. A second, exterior layer of the concrete sandwich structure encloses the roof, onto which builders install thin-film photovoltaic cells.
The fully-developed prototype will create more energy than it consumes. The structure’s components are reusable and the concrete itself is highly robust. The team considers its success a milestone — and rightfully so.
“We’ve shown that it’s possible to build an exciting, thin concrete shell structure using a lightweight, flexible formwork, thus demonstrating that complex concrete structures can be formed without wasting large amounts of material for their construction.”
There isn’t yet word on recreating the roof commercially, but after four years of research, the wait shouldn’t be much longer.