When fully installed, the three sites will provide an annual output of more than 4,500MW of hours electricity, which will be sufficient for about 970 average-size homes.
The solar arrays will be installed on the roof of the Beckton desalination plant in Newham, on the top of vast storm tanks built in the 1800s at Crossness sewage works in Bexley, and on redundant sand filters at Walton water treatment works in Sunbury.
Once installations are completed at the three sites, Thames Water will plan to fit more photovoltaic systems at up to 100 of its smaller locations, delivering a further 0.5% of the firm’s annual energy requirement.
