Watch closely: a defining point emerged this week in the Building-Powered Car Master Plan. Adrian Smith + Gordon Gill Architecture was selected to design the first large-scale positive energy building (producing more power than it consumes). The surplus power this building makes could charge plug-in hybrid electric cars.
But it won't. The city will be car-free.
Still, Masdar's headquarters may serve in perhaps the more important role of modeling what can be done elsewhere. Keep an eye out for points that emerge, one by one, to define a new way to power our vehicles.