India is emerging as a key player in exercising influence over the global climate change initiatives, and no significant global reduction of green house emissions can be attained without active Indian participation. According to the McKinsey Global Institute report of July 2008, cost-effective opportunities in energy productivity could reduce the growth in energy demand by half and substantially shear greenhouse gas emissions. Interestingly, US President Barack Obama in his G20 summit meet with Prime Minister Manmohan Singh mentioned the need for energy efficiency while talking about climate change. Ecocrystal Private Limited, a Bangalore-based water treatment company, has been contributing in its own modest way towards designing and launching water treatment devices which would lower energy usage, particularly in the area of industrial applications that involve heating water and where water is a major medium of heat transfer. Chilling plant: One of the very successful instances of the application of Ecocrystal technology in attaining energy efficiency by reducing energy consumption is in the case of chilling plants. Chilling water plants are used for a wide variety of applications ranging from storage of food to operating air-conditioning systems. In all these applications, the scale in the pipes reduces the heat transfer efficiency, thus draining huge amount of energy. Says Kaustav Bhattacharyya, director of Ecocrystal and a German-trained engineer with MBA in technology management from Brussels: "If we have to define our core strength it is successful adaptation of European technology for Indian conditions at lower cost." Hydro-Ion system: It is a technology to covert calcium crystals into micro-fine colloidal form, which cannot adhere to water pipes, along with/ the formation of some amount of carbonic acid.