Power company ELES has conceptualized terrifically virtuous, carbon neutral office campus in Ljubljana, Slovenia for OFIS. Made in aluminum, the buildings have been massively outfitted with solar panels. To make the carbon neutral office even greener, the interiors have lush green a series of daylit atriums inside the buildings. While the real buildings will have concrete shells, they will be lined with aluminum panels too. Carbon neutrality will be achieved by determining renewable energy sources around the area. The groundwater will be used for direct cooling and heating purposes, and wind and sun for ventilation and daylighting respectively.