Stenco carried out an energy saving project by studying and improving the quality of the water supply to a Steam Production Plant, through the implementation of a Reverse Osmosis System. With the start-up of this solution, the consumption of water, regeneration salt of the softener and other chemical products has been reduced. The reduction of the purge flow of the boilers provides very important economic benefits by reducing fuel consumption, in addition to reducing the emissions of CO2 into the atmosphere. The global saving has been evaluated at € 24,000 / year and the return on investment period of the new Reverse Osmosis Equipment has been 1.6 years