Industry Buildings Use over 3 Lakh Litres of Water for Cooling. This Tech Brings It down to Zero. Tanaya Singh May 27, 2016 Technology An air conditioner that consumes 40-60% less electricity than normal and zero water in the cooling process? This technology is a reality today, thanks to two men who are not just saving their clients huge bills, but also saving the environment. Here’s the nitty gritty of it.