在混乱的建筑群中，圆柱形的埃森ＲＷＥ办公大楼，矗立在其自带的湖水和绿色花园的环绕之中２５ｍ高的入口环形遮阳棚，使得该大楼整个形体在城市规划的意义上向外扩展，成为一个公共空间。节约能源，首先在于大楼的形体及设备。圆形平面不仅有利于面积的使用，而且圆柱状的外 Among the chaotic buildings, the cylindrical Essen RWE office tower, with a 25m-high entrance ring awning surrounded by its own lake and green gardens, has made the entire building in the urban planning sense External expansion, become a public space. Energy conservation, above all in the shape and equipment of the building. Circular plane not only conducive to the use of area, but also cylindrical outside