Mumbai-based RK Systems, a long-time partner of NRG Limited, supplied and executed India’s tallest lattice met tower in June 2017. The tower is 150 metres in height and features an array of NRG products, including 40C anemometers, 200P wind vanes, 110S temperature sensors, a BP20 barometric pressure sensor, and a SymphoniePRO data logger with iPackGPS for bankable, secure and reliable data collection. The decision to commission the tower was spurred by the growing proliferation of taller turbines. A tall tower performs accurate resource assessment, which reduces uncertainty and gives a better estimation. One of the major challenges faced by RK Systems was the erection of the tower which weighs 250 kg. To keep the tower stable and secure was a task. Realising the challenges, Arun Mehra, director, RK Systems, and his team introduced a design that uses square tubes. Square tubes are stronger than an “L” angle or channel, which solved the problem. The tower was then subjected to the government’s current wind load software, which is 10 per cent more demanding than the preceding software. The company’s experience in manufacturing and installing over 1,100 met towers in India and in the neighbouring countries coupled with their ability to produce such tall towers will help the Indian wind industry grow by enabling developers to measure at increased hub heights and, in turn, better predict the energy output at a potential site.