The north façade was specifically shaped to respond to the prevailing winds on site to maximize the energy generation potential of the integrated wind turbines. It channels the wind through the turbines, minimizing turbulence and optimizing wind speed. The SFPUC features a dual contextual design to maintain compatibility with both the classically styled government buildings and more modern urban city scape. The south side faces City Hall and completes the Civic Center as San Francisco’s urban living room while the north side features a more contemporary design to mirror the city. It was very important for the neighbors on the northwest side that the SFPUC accommodate San Francisco’s sun-shadow ordinance and enable sun to shine on a neighboring school’s play yard.