{"id":484696,"date":"2026-03-19T21:36:06","date_gmt":"2026-03-19T21:36:06","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/484696\/"},"modified":"2026-03-19T21:36:06","modified_gmt":"2026-03-19T21:36:06","slug":"coastal-erosion-raises-questions-over-protection-for-40bn-sizewell-c-nuclear-plant","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/484696\/","title":{"rendered":"Coastal erosion raises questions over protection for \u00a340bn Sizewell C nuclear plant"},"content":{"rendered":"<p class=\"A8Lwr BVYCX\">The accelerating pace of coastal erosion after a damaging winter on the UK&#8217;s east coast has raised fresh questions over protection for a new \u00a340bn nuclear plant under construction.<\/p>\n<p class=\"A8Lwr BVYCX\">Sizewell C is being built on the Suffolk coast, near the site of two previous nuclear power plants, with an operational and decomissioning timeline stretching for more than 100 years.<\/p>\n<p class=\"A8Lwr BVYCX\">But a bruising winter along the coast, which has seen dozens of homes demolished before they fall into the sea, has led to concerns about the wisdom of building the plant on one of the fastest-eroding coastlines in Europe.<\/p>\n<p class=\"A8Lwr BVYCX\">Sizewell C said the plant would be built on a &#8220;more stable section of the coast between two hard points&#8221; and an offshore bank of sediment known as the the Sizewell-Dunwich Bank.<\/p>\n<p class=\"A8Lwr BVYCX\">Prof Sir David King, chair of the Climate Crisis Advisory Group, said a secure future for Sizewell lay in adaptable and robust defences. <\/p>\n<p class=\"A8Lwr BVYCX\">\u201cThe question is no longer should it be built there, because it is being built; but rather &#8216;How do we protect it?&#8217;\u201d, he said. <\/p>\n<p class=\"A8Lwr BVYCX\">\u201cI would be constructing a wall around Sizewell B and Sizewell C, and I would see the foundations for this wall going in quite soon.<\/p>\n<p class=\"A8Lwr BVYCX\">&#8220;Build the foundations now so that in later years, as sea levels rise, we can build them all up to defend appropriately,&#8221; he advised.<\/p>\n<p>Prof David King believes that work done now could prepare the plant for future scenarios. Credit: ITV News Anglia<\/p>\n<p class=\"A8Lwr BVYCX\">The plans are for Sizewell C to be built on a platform approximately 7m above today\u2019s sea level. <\/p>\n<p class=\"A8Lwr BVYCX\">It will be protected by a sea defence structure more than 14m above today\u2019s sea level, which will take the form of temporary sheet-pile sea defences during construction and will be replaced by permanent structures throughout the plant\u2019s operational lifetime and decommissioning until 2140. <\/p>\n<p class=\"A8Lwr BVYCX\">Sizewell C said the plant would be built on a stretch of coastline which had been shown by data to be &#8220;comparatively stable&#8221;, while the beach will also be enlarged and maintained to form a soft coastal defence.<\/p>\n<p class=\"A8Lwr BVYCX\">It adds that it will all be adaptable, meaning if sea levels rise beyond predictions, so too can the defences. <\/p>\n<p class=\"A8Lwr BVYCX\">But communities along the coast complain there is an inequality of defence.<\/p>\n<p class=\"A8Lwr BVYCX\">While millions are being pumped into defences at Sizewell, others living elsewhere along the coast are being left to fend for themselves and there is a big debate on whether what happens at Sizewell will have an impact on neighbouring areas further down the line.<\/p>\n<p>Thorpeness resident Roger Hawkins is battling to save his home from erosion. Credit: ITV News Anglia<\/p>\n<p class=\"A8Lwr BVYCX\">The campaign group Together Against Sizewell C believes planning approval should not have been granted without Sizewell C demonstrating it had a viable plan to protect the site from an extreme climate change scenario.<\/p>\n<p class=\"A8Lwr BVYCX\">Chris Wilson from the group said: \u201cWhy was the modelling for flood-risk in the [development consent order] restricted to a site lifetime of 2140 when it was clearly evident that spent fuel would be on site beyond that date?\u201d<\/p>\n<p class=\"A8Lwr BVYCX\">\u201cAnd why was it allowed to be based on an unchanging coastal geomorphology assuming that the protective sand bars\u2026 would remain intact throughout the full lifetime of the project?\u201d<\/p>\n<p class=\"A8Lwr BVYCX\">There have also been concerns raised about how the defence work to protect Sizewell C will impact further down the coast. <\/p>\n<p class=\"A8Lwr BVYCX\">Local resident Jenny Kirtley said erosion had escalated in the past year &#8220;far more than anybody thought it would&#8221;.<\/p>\n<p class=\"A8Lwr BVYCX\">&#8220;A worry will be when they start the work out at sea,&#8221; she said.<\/p>\n<p class=\"A8Lwr BVYCX\">\u201cThere will be two jetties built and huge intake and outfall tunnels built under the seabed. We know what&#8217;s happened to Thorpeness already.  Is this going to make to make it more difficult for Thorpeness? Will these sea defences cause more problems?\u201d<\/p>\n<p class=\"A8Lwr BVYCX\">The answers are inconclusive. <\/p>\n<p>Work has been going to demolish homes at Thorpeness over the winter. Credit: ITV News Anglia<\/p>\n<p class=\"A8Lwr BVYCX\">Robert Nicholls, professor of coastal adaptation at the University of East Anglia, has studied the coastline for many years.<\/p>\n<p class=\"A8Lwr BVYCX\">\u201cThe effects of Sizewell become significant if we are forced to protect it\u201d, he said. <\/p>\n<p class=\"A8Lwr BVYCX\">\u201cAt the current time, Sizewell doesn&#8217;t need much protection. So probably I would argue it&#8217;s not having a huge effect on its neighbouring coasts, if it suddenly began to erode and you had to protect it, then it might start to have a big effect both on the coast to the north and the south.\u201d<\/p>\n<p class=\"A8Lwr BVYCX\">At the village of Thorpeness, 11 families have already lost their clifftop homes to erosion in the last few months.<\/p>\n<p class=\"A8Lwr BVYCX\">Residents have been given permission to take matters into their own hands and are raising hundreds of thousands of pounds to place rock bags at the bottom of what is left of the sandy cliff. <\/p>\n<p class=\"A8Lwr BVYCX\">But with millions being pumped into defences for Sizewell C, residents want support from the project to help secure their future too.<\/p>\n<p class=\"A8Lwr BVYCX\"> Dennis Skinner from the Thorpeness Community Interest Company said: &#8220;The scientists can do all the studies but, as we&#8217;ve seen in the last two months with the amount of erosion here in Thorpeness, I don&#8217;t think anyone can be certain about what impact different things are having up and down the coastline<\/p>\n<p class=\"A8Lwr BVYCX\">\u201cSizewell C have got a budget in excess of \u00a350bn, so contributing to Thorpeness will just be a rounding sort of figure.\u201d<\/p>\n<p class=\"A8Lwr BVYCX\">A spokesperson from Sizewell C told ITV News Anglia it was monitoring local coastal processes and the situation at Thorpeness.<\/p>\n<p>Sizewell B on the Suffolk coast, next to the construction site for Sizewell C. Credit: ITV News Anglia<\/p>\n<p class=\"A8Lwr BVYCX\">\u201cWe\u2019ve performed thousands of hours of flood risk modelling using the highest plausible estimates for sea level rise and therefore have the highest level of confidence that Sizewell C is in the right location,&#8221; they said. <\/p>\n<p class=\"A8Lwr BVYCX\">\u201cIt&#8217;s located on a more stable section of the coast and [\u2026] drones are regularly producing 3D maps of changes, coastal erosion, and accretion [&#8230;] If there are any unexpected developments, we will take action to address them.<\/p>\n<p class=\"A8Lwr BVYCX\">\u201cOur assessments show that the power station will be built to withstand a 1-in-10,000-year storm and 1-in-100,000-year surge\u201d.<\/p>\n<p class=\"A8Lwr BVYCX\">Roger Hawkins is desperately trying to save his house at Thorpeness from the inevitable erosion. <\/p>\n<p class=\"A8Lwr BVYCX\">\u201cWe recognise that it&#8217;s impossible to defend the whole coast, and there are some areas where you&#8217;ve got areas of dense population like towns and docks and infrastructure like Sizewell C, where you can obviously need to have a hard defence. <\/p>\n<p class=\"A8Lwr BVYCX\">&#8220;But at what point do you stop providing the hard defence?\u201d<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"The accelerating pace of coastal erosion after a damaging winter on the UK&#8217;s east coast has raised fresh&hellip;\n","protected":false},"author":2,"featured_media":484697,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[1397,90,56,54,55],"class_list":["post-484696","post","type-post","status-publish","format-standard","has-post-thumbnail","category-environment","tag-environment","tag-science","tag-uk","tag-united-kingdom","tag-unitedkingdom"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/484696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=484696"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/484696\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/484697"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=484696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=484696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=484696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}