Water management

The sustainable management of site water during withdrawal and use encourages the maintenance and improvement of water use efficiency, ensuring less waste of the resource and reduced environmental impact. The water is mainly used for sanitary purposes and for the operation and cooling of air conditioning systems; in certain locations it is also used for watering the green areas. Ansaldo STS’s water procurement sources include aqueducts and water tables where water is drawn through wells.

To reduce water consumption, Ansaldo STS has installed devices that mix water and air or, alternatively, photocells or timed controls that effectively control the water flow, in order to minimise the waste of the resource.

Rainwater recovery projects at the Riom plant in France and the replacement of cooling towers with "dry" systems also contribute to sustainable water management.

The use of water is mainly for civil purposes. Water consumption at the Tito Scalo (Italy), Riom (France) and Batesburg (US) sites is very low. From 2016 to 2017, these sites reduced their water withdrawals (-6.5%), also considering that the Tito Scalo plant cut the amount of industrial water it used for fire drills and irrigation of green areas, while the amount of water used for production decreased because electrical circuit boards are no longer rinsed. Compared with 2016, withdrawal also fell at the office sites (-30.0%); particularly affecting this result was the decrease recorded at the Naples site.

  2015 2016 2017 2015 2016 2017 2015 2016 2017
Water drawn from aqueducts (m3/year) 14,726 12,329 11,529 160,942 143,153 98,468 175,668 155,482 109,997
Water drawn from wells (m3/year) - - - 41,906 10,616 9,128 41,906 10,616 9,128
Other sources (m3/year) - - - 132 - - 132 - -
TOTAL 14,726 12,329 11,529 202,980 53,769 107,596 217,706 166,098 119,125

The water consumption per employee indicator16 shows a reduction of 31.4% compared to 2016, due to the combined effect of reduced consumption and increase in the number of employees.



16 The number of employees considered by the calculation does not represent the entire Group workforce but rather the scope of the environmental data (see Reporting Scope in the Note on Methodology).