In a desert about 50 kilometers east of Cairo, Egypt, a modern new city is rising rapidly. The construction of the main structure and exterior decoration of all 20 buildings of the new administrative capital CBD project in Egypt undertaken by CSCEC Egypt Branch (CSCEC Egypt) has been completed, and it has entered the stage of decoration and electromechanical installation. "During the construction of the new administrative capital CBD in Egypt, the Chinese and Egyptian participating units made joint efforts to respond to the advocacy of green environmental protection, energy conservation and emission reduction, and took a number of measures in project planning, architectural design, construction and other aspects, actively contributing to the response to global climate change." Yuan Hao, the design director of CSCEC Egypt, said in an interview with Xinhua News Agency at the project site a few days ago. Yuan Hao said that Egyptian officials proposed "green development" at the beginning of the new administrative capital planning, which coincided with the green "the Belt and Road" initiative proposed by China. They also discussed and communicated with Egypt in this regard, which not only made the project construction more smooth, but also enhanced mutual trust between the two sides. In terms of planning, the CBD project has set up an efficient public transport system and pedestrian system in combination with municipal and landscape design to encourage people to take public transport and walk to achieve "green travel". In design, the project uses different kinds of concrete scientifically, saving construction energy consumption; The unit glass curtain wall is used to cooperate with high-performance glass and sunshade components to reduce energy consumption in production and operation. In the construction, the project uses aluminum mold to replace the traditional wood mold, which has a high recycling rate and greatly reduces the material consumption; A reclaimed water system is set up on site to purify sewage and wastewater for on-site dust removal, greening irrigation, vehicle cleaning, etc., saving a lot of water resources. In addition, the project has set up a regional energy station to centralize the "cooling" of 20 buildings with a total area of 1.92 million square meters for unified supply and management, which has improved the efficiency of energy use, and also set up a supporting "heat storage tank" to improve the utilization rate of electric energy. "China and Egypt are both developing countries, with relatively similar backgrounds in the construction industry." Yuan Hao said that China took the lead in exploring a set of green construction technologies suitable for developing countries. After practical tests, more mature programs and measures have been formed, providing Egypt with practical reference in green construction, helping Egypt quickly complete the transformation from concept to practice, and laying the foundation for Egypt's green scientific and technological innovation and green industry upgrading. In the opinion of Mohamed Hamdi Salama, the local mechanical engineer of the project, China has accumulated rich experience by focusing on ecological protection while developing its economy. In the CBD project, CSCEC Egypt practices the concept of sustainable development from material selection to the application of new technologies, so that Egypt can benefit from it. He said that the use of rock wool insulation board and double glass curtain wall improved the thermal insulation performance of the building, effectively reduced the cold and heat load of the building, and reduced energy consumption; The "heat storage tank" can balance the power supply during the peak period of power consumption and improve the power supply efficiency; Building intelligent management system is adopted to intelligently control all equipment according to different use scenarios. Yuan Hao said that Egypt is rich in solar and wind energy resources and has the talent of "green development"