A new nuclear power station needs a vast supply of water. But where will Sizewell C get it from? | Will Atkins

Plans for the site have got the go-ahead. The knock-on effect for Suffolk's rivers and seawater will soon be clear

Last week, the government gave the go-ahead for a new nuclear power station to be developed on the Suffolk coast. Providing low-carbon electricity for about 6m homes, Sizewell C will stand alongside two existing stations, Sizewell B and the decommissioned Sizewell A. I live close enough to see the 60-metre tall, white dome of Sizewell B almost every day. When I want to torture myself, I look at developer EDF's construction phase visualisations" of the 1,380-acre building site, with its towering spoil heaps and forest of cranes, and wonder if this is what it will take to save the planet.

What might not have been immediately obvious in the coverage of the government's decision was that the Planning Inspectorate, tasked with assessing such projects, had recommended that permission be refused. The problem, the examiners explained, was fairly simple: EDF couldn't say exactly where it would obtain one of the main substances needed to make a nuclear power station work, that substance being water.