The UN Headquarters in Copenhagen is recognized as one of themost energy efficient buildings in the world. The building consumes only 50 kWh of electricity per 1 sq. m. This is 55% less than the needs of an ordinary building of the same area. The authors of this attractive project received the prestigious The GreenBuilding Award. And the European Commission on Energy Efficiency gave the building LEED platinum status. How did they do it? We will see! 
The building is indeed unusual: On the roof there is a membrane reflecting the sun's rays and protecting the building from overheating, and photovoltaic panels producing electricity. Inside the building, too, there is something to be surprised: for cooling, sea water is used; Bathrooms and showers work by collecting rainwater. And this saves 3 million liters of water per year! 
The headquarters itself (you have not yet forgotten that speechis not a hipster office, but the UN headquarters in Denmark?) is located on a bulk island in the north of Copenhagen. From above, the building looks like an irregular star. And this form was not chosen by chance: each "ray" has its own department. The total area of the building is 20,000 sq. m. But, of course, the main decoration is the fantastically beautiful symbolic avant-garde black staircase, the flights of which sometimes converge, then diverge, symbolizing the main diplomatic methods: dialogue and interaction. 
The most energy efficient UN headquarters
