nuclear-news

About a quarter of the world’s nuclear power stations are on coasts or estuaries. The sites on the east coast and Severn Estuary are especially vulnerable to flooding, tidal surges, and storms. Potential impacts include loss of cooling and problems of access and emergency response in the event of a major incident and inundation of the plant, including spent fuel storage facilities.

In areas like the east coast of England, natural protection from saltmarshes, mudflats, shingle beaches, sand dunes and sea cliffs has been rapidly declining. Recent projections indicate substantial parts of the coast below annual flood level in 2100 and a loss of between a quarter and a half of the UK’s sandy beaches, leading to extensive inland flooding. The problems of managing such coasts through adaptive measures such as managed realignment and hard defenses may be insuperable in the uncertain circumstances of climate change over the next century. It seems imprudent and irresponsible to contemplate development of new nuclear power stations in conditions which may become intolerable.

Climate predictions have focused especially on the period up to the end of the century, by which time planned new nuclear power stations starting up in the 2030s will only just have ceased operating. At the turn of the next century the legacy of today’s new build will become the decommissioning wastes of tomorrow, adding to that already piled up in coastal locations. ……

Beyond 2100 sea levels continue rising and the radioactive legacy of new nuclear power stations will remain at the sites, in reactor cores and in spent fuel and waste stores exposed to the destructive processes of climate change. It is predicted that decommissioning and clean-up of new build sites will last for most of the next century.

The logistics, let alone the cost of transplanting, decommissioning and decontaminating the redundant plant and wastes to an inland site, if one could be found, would be well beyond the range of managed adaptation. The government’s claim that it ‘is satisfied that effective arrangements will exist to manage and dispose of the wastes that will be produced from new nuclear power stations’ is an aspiration, and by no means a certainty……..https://wordpress.com/read/feeds/72759838/posts/3061243158

‘It was now that wind and sea in concert leaped forward to their triumph.’
Hilda Grieve: The Great Tide: The Story of the 1953 Flood Disaster in Essex. County Council of Essex, 1959 

The Great Tide of 31 January/1 February 1953 swept down the east coast of England, carrying death and destruction in its wake. Communities were unaware and unprepared as disaster struck in the middle of the night, drowning over 300 in England, in poor and vulnerable communities such as Jaywick and Canvey Island on the exposed and low-lying Essex Coast.

Although nothing quite so devastating has occurred in the 67 years since, the 1953 floods remain a portent of what the effects of climate change may bring in the years to come.

Since that largely unremembered disaster, flood defences, communications and emergency response systems have been put in place all along the east coast of England, although it will only be a matter of time before the sea reclaims some low-lying areas.

Among the most prominent infrastructure on the East Anglian coast are the nuclear power stations at Sizewell in Suffolk and Bradwell in Essex, constructed and operated in the decades following the Great Tide.

Sizewell A (capacity 0.25 gigawatts), one of the early Magnox stations, operated for over 40 years, from 1966 to 2006. Sizewell B (capacity 1.25 gigawatts), the only operating pressurised water reactor in the UK, was commissioned in 1995 and is currently expected to continue operating until 2055.

Further down the coast, Bradwell (0.25 gigawatts) was one of the first (Magnox) nuclear stations in the UK and operated for 40 years from 1962 to 2002, becoming, in 2018, the first to be decommissioned and enter into ‘care and maintenance’.

These and other nuclear stations around our coast were conceived and constructed long before climate change became a political issue. And yet the Magnox stations with their radioactive graphite cores and intermediate-level waste stores will remain on site until at least the end of the century.

Meanwhile, Sizewell B, with its highly radioactive spent fuel store, will extend well into the next. Inevitably, then, the legacy of nuclear power will be exposed on coasts highly vulnerable to the increasing sea levels and the storm surges, coastal erosion and flooding that accelerating global warming portends.

Managing this legacy will be difficult enough. Yet it is proposed to compound the problem by building two gargantuan new power stations on these sites, Sizewell C (capacity 3.3 gigawatts) and Bradwell B (2.3 gigawatts) to provide the low-carbon, ‘firm’ (i.e. consistent-supply) component of the energy mix seen as necessary to ‘keep the lights on’ and help save the planet from global warming.

But these stations will be operating until late in the century, and their wastes, including spent fuel, will have to be managed on site for decades after shutdown. It is impossible to foresee how any form of managed adaptation can be credibly sustained during the next century when conditions at these sites are unknowable.

New nuclear power is presented as an integral part of the solution to climate change. But the ‘nuclear renaissance’ is faltering on several fronts. It is unable to secure the investment, unable to achieve timely deployment, unable to compete with much cheaper renewables, and unable to allay concerns about security risks, accidents, health impacts, environmental damage, and the long-term management of its dangerous wastes. 

It is these issues that will be played out in the real-world context of climate change. There is an exquisite paradox here. While nuclear power is hubristically presented as the ‘solution’ to climate change, the changing climate becomes its nemesis on the low-lying shores of eastern England. ………. https://wordpress.com/read/feeds/72759838/posts/3061243158