A brand new building with a shiny solar facade has popped up in the Park Slope, Brooklyn. Designed by McMahon Studio, this cool structure features a 7KW photovoltaic-clad front that brings a futuristic new aesthetic to the traditionally brick and brownstone neighborhood. While there’s no denying that this building is a nice piece of architecture eye-candy, we can’t help but question how sustainable this “super green” condo actually is. As you may know, there’s a reason why solar panels are placed on roofs and not on building facades, and it has to do with exposure and efficiency. And in a city like New York where shadows from trees and tall buildings are pretty much a given, McMahon’s eco-friendly claim may not be all it’s cracked up to be. So is this building really green?