On August 21, the first field exercise for power supply to the Summer Davos Forum 2018 was launched by the State Grid Tianjin Electric Power Company, aiming to make a whole inspection on the ability of connecting emergency generator and emergency operation etc. so as to lay a solid foundation for reliable power supply to the main venues on the occasion. The exercise also marks the full start-up of power support for the Summer Davos Forum 2018 in Tianjin.