Southern Water is to build a desalination plant near Brighton and a wastewater recycling scheme for the Isle of Wight as part of its strategy to meet the demand for water in its area over the next 25 years.
The water plc published its Water Resources Management Plan yesterday. Total investment over the next 25 years to meet demand will be £614.5M, of which £426.9M will go towards demand management measures including universal metering and £186.7M towards developing new resources.
Population is anticipated to grow 13% in the region and there is predicted to be a particularly large water deficit in Brighton.
The solution is coastal desalination, says Southern's plan, along with augmentation of flows in the river Rother by using recycled wastewater. Both will use membrane technology.
On the Isle of Wight a 10Ml/d wastewater recycling scheme will be constructed to meet peak demand, along with an upgraded cross-Solent main which will allow water transfer from the mainland of up to 20Ml/d, up from the 12M/ld currently available.