Jersey Water to start major desalination plant upgrade

(by Karma Loveday)

Starting a major desalination plant upgrade forms the keystone of Jersey Water’s business plan for 1 October 2026 to 30 September 2027, the second year of its strategy to 2030.

The £26m upgrade will increase the plant’s output by 50%, as part of the company’s adaptation to a changing climate as evidenced by this year’s prolonged hot weather. It marks the company’s biggest investment for 35 years.

Other priorities in the plan include continuing preparations for future PFAS requirements with pilot trials and treatment technology evaluations, alongside investment in water infrastructure to bolster operational resilience.

From 1 January, average households can expect to pay an extra 8 pence per day for their water, which is equivalent to an additional £2.55 per month or £30.60 per year.

Chief executive Helier Smith said: “When we published our 2030 strategy last year, we were clear that increases in water charges would be necessary to support the investment required to secure Jersey’s long-term water supply. The increase will enable us to deliver that investment, strengthening the Island’s resilience and helping to ensure a safe, reliable water supply for generations to come.”