Refrigeration TechnologyRefrigeration Technology0023-124X2782-4241Eco-Vector10085710.17816/RF100857Research ArticleOffice building using natural energy sourcesBoardEditorialinfo@eco-vector.com1501200493140401602202216022022Copyright © 2022, Board E.2022<p>Germany has built the world's largest office building using natural energy sources (the so-called "passive building"). The 7000 m2 building will be able to employ 420 employees. On its facade, which has a rounded shape, there are no usual large windows. They open onto an internal atrium with a glass roof.</p>natural sources of energy"passive building"atrium with skylightестественные источники энергии«пассивное здание»атримум с застекленной крышей