From the Technical University of Denmark, FOLD is "naive… and realistic."
The sloped roof is designed to be tuned to local conditions and site specific resources, following three steps:
• REDUCE: The first step is to reduce energy consumption by limiting unwanted heat loss and gain by means of improved geometry and the transparency of the building envelope.
• OPTIMIZE: Then we optimize the necessary systems. This might be cause additional cost on the building budget – but the operating costs will be significantly minimized.
• PRODUCE: Finally, the building achieves net zero energy by building integrated energy production methods.
Inhabitat called it "a comfortable, well-lit and ventilated home that people from all walks of life will enjoy."
More at Inhabitat and the gorgeous team website.