Tired of hearing about building integrated photovoltaics? Well, the next wave of energy-producing architecture may look quite different. Strawscraper, a project currently underway in Stockholm, will see a building coated in a hair-like material that harvests energy from the wind. The process is known as piezoelectricity. Designed by Swedish firm Belatchew Arkitekter, Strawscraper is an addition to Stockholm’s Söder Torn building, which was completed in 1997. Once transformed into the Strawscraper, the building will stand at 40 stories tall and will act as an “urban power plant,” according to the architect’s website.