Steam is water in its gaseous form It is obtained by heating water to the temperature at which the water pressure equals the atmospheric pressure, causing the water molecules to escape into the air as gas. Steam is widely used in industry for energy transfer, heating, evaporation and steam turbines. In thermal power plants, for example, steam is used to generate electricity by driving turbines. Steam also has many household applications such as softening stiff laundry and sterilising food. It is important to monitor your steam system for leaks and losses to save costs. Significant costs can be saved in this way.