The new terminal buildings measure more than . The new terminals buildings are expected to cater to 14 million more passengers per annum, including 4 million per annum at the international terminals. With the existing terminals handling 9 million, the airport will be able to handle 23 million passengers per annum after the integration with 16 million in domestic and 7 million in the international terminal. After expansion, the aircraft movements in the airport is likely to increase at the rate of 5 to 7%. By 2020–21, the airport is expected to handle 700 movements a day. The new terminals are expected to clock between 72 and 75 green points of the total 100 for integrated inhabited assessment. The AAI has divided the building for land-side and air-side operations. The spaces are connected with a central security checkpoint for departure and there is a glass bridge on each side of the building for arriving passengers. On the roadside, the new terminals are connected with an elevated corridor, which will have approach and exit ramps. The power requirement at the expanded airport is around 110 kV•A – more than three times the current needs. A new 11,000 kV sub-station has been built by the Tamil Nadu Generation and Distribution Corporation (TANGEDCO) at the airport to serve the terminals, for which the power has been sourced from Kadapperi near Tambaram. The retail space earmarked in the new international and domestic terminals is about 9,000 sq m, nearly thrice as much as the existing one.