When we last brought news of BrightBuilt Barn in September, it was only partially constructed. Now it's all built and looks quite good. Its trademark feature is the exterior LED lightskirt, which was designed to change color depending on the home's energy use. GREEN means the BrightBuilt Barn is generating more energy than it consumes; YELLOW indicates a borderline condition; and RED means the energy usage is higher than required to meet the yearly net energy goal. And like the lightskirt, everything about this home has been planned with meticulous care to create a livable, sustainable, replicable, flexible, and educational net-zero energy home.