Showing posts with label Hinkley C. Show all posts
Showing posts with label Hinkley C. Show all posts

Tuesday, September 20, 2016

Hinkley C – the shock of faith in the wrong technology

The British Government's decision to back Hinkley C nuclear power station is another success for the snake oil salesmen of a defunct technology that sends completely the wrong message.

I once wrote a novella about nuclear power that satirised the ease with which politicians fell for its sales pitch, seduced by that strong subtext of sexual potency, the Promethean glamour of seeming to commission the ultimate power source.

Except the reality was and remains a lengthy catalogue of dangerous failures, ineptitude, accidents and catastrophes – of which Chernobyl is the most famous.

A recent scientific study shows that "accidents on the scale of the 1979 meltdown at Three Mile Island in the USA (a damage cost of about 10 Billion USD) are more likely than not to occur every 10-20 years".

The same study highlights the "'flawed and woefully incomplete' public data from the nuclear industry" that is "leading to an over-confident attitude to risk".

Once nuclear power was sold to us as electricity supply that would be "too cheap to meter". Now, even though the British Tory government knows it's amongst the most expensive power sources on the planet...

relative cost of nuclear, wind power, solar power, and gas powered electricity


... they're still keen to sell Hinkley C to a British public that doesn't want it [original data here].

They know, too, that the specific technology to be deployed at Hinkley C already has "a lengthy catalogue of dangerous failures, ineptitude, accidents and catastrophes" at the previous attempts to deploy it – Flammanville, Taishan and Olkiluoto – but they still want to commission another one like it.

They know that the nuclear industry was forced to become so secretive that its secrets – usually cover-ups of the lengthy catalogues of dangerous failures, ineptitude, accidents and catastrophes – were kept from governments and the public for years (and who knows what has yet to come to light) – and yet the fact that the Chinese government might have access to the secrets of the British nuclear industry and national grid is only offered as a bogus concern, not a serious obstacle to the much more important aim – remaining in the Chinese and French governments' good books.

If I didn't think that it was unlikely that members of the Tory government have read my novella, I'd think it was a case of life imitating or parodying art. (Although I wouldn't put it past the potential of civil servants to be consciously doing so – twisted, devious creatures capable of not just double-think, but triple-, quadruple-, and even octople-think that they are.)

I have observed the British government's grotesque and contorted dance of death with EDF and Hinkley C since it was begun by Tony Blair, with a mixture of fascination, horror and contempt, of the sort I normally reserve for watching the calculated relapse of an ex-alcoholic drawing themselves into a terminal vortex, the culmination of which is starkly obvious to all powerless onlookers.

When Theresa May hit the pause button on approving the Hinkley C decision when everyone expected her to rubber stamp it, she was like the pantomime villain horsing around with the expectations of the audience, just so that when they finally commit the Terrible Deed, they can reap even more opprobrium from the audience than they would have received had they dealt the blow straight away.

There has been so much coverage in the press that everyone can see what a terrible decision this is. The tail has wagged the dog, but it's the taxpayer who will foot the bill if the thing ever does get built. Here's 5 reasons why it shouldn't be built.

There is still a chance it might not. There is still a chance that May could be playing a double bluff: in her wish not to offend the Chinese she has greenlighted the project even though she knows it is an awful bet (she can't be so blinkered that she doesn't know this, can she?) hoping that some other factor – technical, financial, legal – there are a few in the pipeline – will prevent it ever being built, thereby exonerating her from possible future blame by the Chinese.

There's a chance, but it's a slim one. I wouldn't bet on it if I were a gambler.

The whole thing is a farce, but it's more than that, it's a parody of a farce that is still a farce. A post-post-modern farce. Grotesque, and embittered with the self-hypnotised reflection of irony in love with itself.

Meanwhile, if you have a spare hour, watch the video below which shows how, by the time Hinkley C is built, technological disruptions in the fields of energy storage, electric vehicles, autonomous vehicles, solar power and computing will mean there will be absolutely no market for its over-expensive electricity.

It will be old. Out of date. Unnecessary. But still producing nuclear waste we cannot yet render safe.


David Thorpe is the author of:

Thursday, March 10, 2016

Why the Labour Party needs a new policy on Hinkley C nuclear power station

Hinkley B nuclear power station. C doesn't necessarily follow B.

The resignation of Electricite de France's Chief Financial Officer Thomas Piquemal – after opposing the announcement next month of an investment decision on the building of a new nuclear reactor at Hinkley Point C in the UK – is the latest in a long line of expert denunciations of this project.

The Labour Party has always supported this project. It has been championed by the British government since the days of Tony Blair, despite expert criticism over the years.

The mystery is not just why the Conservative Party stubbornly remains so wedded to it, but why the Labour Party does too. It should distance itself and come up with a new strategy – and below I outline why.

Hinkley C would be the first new nuclear power station to be built in the UK in two decades. Originally planned for completion in 2017, it is now unlikely to be built until at least 2025 – if ever.

Bloomberg quoted sources close to EDF as observing that the finance officer was forced to quit because he believed that proceeding with construction would be disastrous for the company, while the French and British governments are putting pressure on EDF to proceed anyway. EDF is 85% owned by the French state.

The French company is at the heart of electricity generation in Britain and been the most committed supporter of new nuclear build here.

If EDF and the French and British governments do announce next month that construction will proceed, it will be at a massive cost to the British taxpayer [see below for how much].

The British government faces serious questions as to why it is persisting with Hinkley C. To understand the seriousness of these questions we need to look at the history of Britain's enthusiasm for this particular plant and technology.

The proposal


NNB GenCo, a subsidiary created by EDF Energy to build and operate two new nuclear power stations at Hinkley Point C and Sizewell, proposes to build a twin reactor power station at Hinkley Point C using an EDF / Areva UK European Pressurised Water Reactor (EPR) design.

Each of the EPR reactors would generate 1600MW of electricity, enough to power about five million homes together. Regulatory and planning hurdles were surmounted in 2013, and yet the project still has not been given the go-ahead. Hinckley Point B was supposed to come to the end of its life cycle this year, but is likely to be extended for another four years.

It began with Tony Blair


In 2010, Hinkley Point was one of eight sites identified by the Government for new nuclear power stations. This followed a new enthusiasm by Tony Blair's Labour government for new nuclear power following almost two decades of disinterest in the subject following the Chernobyl disaster. Commentators at the time credited Tony Blair's conversion to lobbying by the nuclear industry using the argument that nuclear power could help to fight global warming.

David Kennedy, the watchdog Climate Change Commission's chief executive, went on to talk of the country's carbon emission reduction target of a 90% cut in power sector emissions being delivered by 40GW of new nuclear, wind and clean coal and gas power – equivalent to 25 large power stations.

At the same time, the government put its faith in carbon capture and storage (CCS), technology. CCS from the start was condemned by environmentalists as being too expensive to work and was also dubbed a white elephant. It was finally abandoned late last year by the Chancellor George Osborne when he withdrew £1 billion of public support for this technology.

In July of the following year EDF received permission from West Somerset district council to carry out new preparatory groundwork for Hinckley C, and the company lent its support to the local Bridgwater College’s new Energy Skills Centre in order to develop the skills necessary to build the power station.

The government received surprising support from a group of environmentalists led by Mark Lynas and George Monbiot, who broke ranks to back nuclear power. This shocked many other environmentalists such as Jonathan Porritt  and Jeremy Leggett. But even these supporters later came out and said that the Hinkley C deal with EDF was a disaster for the taxpayer and should be scrapped.

Targeting women


In 2012 EDF began a publicity campaign in the UK to soften up the public, which was predominantly anti-nuclear, including paying for editorial in women's magazines because its market research found that women were more like to oppose nuclear power than men.

A complaint I made to the Advertising Standards Authority was upheld, about the use of advertising from EDF that was not labelled as advertising and looked like editorial, in Marie Claire, the "magazine for women who want to think smart and look amazing". The articles were provided by EDF, under the headline “Nuclear power: the facts" but contained inaccuracies.

Even after the ASA ruled in my favour, EDF still continued making dubious claims in the pages of the magazine, such as that in the 2030s “nuclear reactors in Somerset and Suffolk could supply around 40% of the country's energy needs".

In its dreams, maybe. because even while this was going on the French National Audit Office had recommended abandonment of the EPR as too complex and expensive. As Tom Burke, founder director of E3G, commented at the time: "The French National Audit Office recently recommended dropping the EPR as too expensive. This repeated a recommendation made to (French President) Sarkozy two years ago by the former head of EDF, François Roussely, who saw no future for it."

So: as long ago as 2010 the French government was told by EDF's own chief that they shouldn't go ahead with Hinkley C.

"The decision to extend the life of EDF’s existing fleet of reactors in France will put huge pressure on its capital budget over the next decade," the NAO went on to say, and it could support no further expenditure on its balance sheets. This budget, to repair existing nuclear power stations, is now estimated at 50 billion euros, and that work clearly takes precedence over new build.

Six years after Roussely, Piquemal came to the same conclusion, and realised that EDF could not afford to build Hinkley C and repair its old reactors. Now he's gone too.

Anyway, back then, heedless of this 2012 report, British Prime Minister David Cameron made an agreement with the then French President Nicolas Sarkozy to boost nuclear co-operation, which Charles Secrett, co-founder of The Robertsbridge Group and ex-leader of Friends of the Earth  labelled "a massive rip-off for the the British taxpayer". In that letter, he and many other environmentalists warned the government that "EDF will have us over a barrel".

Last month Cameron made the same commitment he made to President Sarkozy to his successor, François Hollande.

Centrica jumps ship


Originally, Centrica, owner of British Gas, was part of a consortium with EDF and Areva to build the plant, but in 2013 it pulled out, citing "uncertainty about overall costs and the construction schedule". Centrica wrote off £200 million and launched a share buy-back scheme to return another £500 million of unused capital to its investors.

Other energy companies such as RWE and E.ON had already decided not to get involved with new nuclear build.

At the time the MP Martin Horwood, said, "like any sane investor in my view, Centrica has decided that it is not going to touch these new nuclear plans with a bargepole".

The British Government would have been wise to heed this comment, but instead continued to persist, opening negotiations with China over financing of Hinkley C which handed the 20% stake formally taken by Centrica to the state-owned Chinese group China Guangdong Nuclear Power Corp., along with access to state secrets concerned with nuclear power, which raised a few eyebrows connected to national security.

The government also awarded Hinkley C a Government Infrastructure Loan Guarantee, a type of financial support that is available to a large infrastructure project.

The plant was then expected to cost around £14 billion. Latest estimates are £18 billion. The Treasury agreed to guarantee some of the cost, reducing the impacts on EDF's balance sheet and allowing a low strike price for the electricity generated – despite a Coalition Government commitment at the time not to subsidise nuclear power.

The wrong technology


Part of the problem is that the UK government backed the wrong technology: the European Pressurised Water Reactor (PWR). Not a single one of these has been completed.

The first, the 1,600 megawatt Olkiluoto 3 plant in Finland, was begun in 2005 and should have gone on line in 2009. It is still not generating power. The initial cost estimate was €3.7 billion; this has now risen to €8 billion.

A prominent factor in Centrica's decision to pull out was EDF's progress in construction a second plant at Flamanville, France. When construction began in 2007 it was to have cost €3.3 billion, according to Le Monde. The price tag is now €10.5 billion and it is seven years late.
Martin Horwood, a British MP, in a debate in the UK Parliament [Hansards 7 Feb 2013 : Column 471] about subsidies for nuclear power in 2013 said: "The Energy Fair group of energy consultants and academics has stripped out all subsidies and says that the real cost of nuclear power is at least £200 per MWh, which is much more than the cost of offshore wind power at £140 per MWh or that of onshore wind power at less than £90 MWh."

British taxpayers will pay the French £45 billion for Hinkley C


The strike price was eventually settled at £92.5/MWh over 35 years.

Professor Tom Burke, who was an adviser to a previous Government, commented that: "this would require a subsidy of £1 billion/year above today’s wholesale price for electricity. This would lead to a transfer of £30 billion to EDF”. He's recently upgraded this estimate to £45 billion.

In order to continue to back the project EDF's costs will be underwritten by the French government as well, which announced last month that it would take this dividend in shares to help conserve cash for the company. [See link at the top of the article.]

EDF's stake in Britain


EDF has a key role to play in keeping the lights on in Britain with low carbon electricity. It already manages eight existing nuclear power stations at sites across the country.

It is also coming to the end, on March 31, of what is believed to be the UK’s largest ever electricity supply contract by annual volume ever awarded by the Government Procurement Service, to supply an annual electricity consumption of about 7.6TWh over four-years to a "a vast range" of public buildings across England and Wales, from inner city academies to museums, from central Government departments to major hospitals, from defence sites, courts, to the British Museum, equivalent to powering 2.3 million typical households. 

Because it was supplied from nuclear power, this contract helped the Government meet its Greening Government Commitments of a 25 per cent reduction in greenhouse gas emissions by 2015 from a September 2010 baseline. Even so, the government failed to meet its own targets for cutting the environmental impact of the state’s operations, according to its last annual report.

What to do with the waste?


Meanwhile, there remains the problem of the storage of nuclear waste. The UK doesn't know what to do with its existing nuclear waste, let alone any future waste. The UK's Public Accounts Committee has published a damning report on the subject. Its Chair, Margaret Hodge, noted that: "a solution to the problem of long-term storage of the waste is as far away as ever. Taxpayers will have to foot the bill" and they "are not getting a good deal".

Questions to answer


Given all of this, the British and French governments have two questions to answer.

Firstly: why do they persist in pursuing EPR technology when, for as long as they have been doing so, they have been warned against it on cost and technical grounds?

This is hugely important, especially in the context of the UK government's widely criticised energy policy, which includes many government U-turns on support for renewable energy in the last six months, an increase in support for fossil fuels, persistent backing of shale gas, leading to criticism by many investors, such as asset manger Schroders, that confidence in the UK energy plans has “evaporated”. As a result of policy inconsistency and unpredictability Schroders said last week it would no longer recommend clients invest in the energy sector.

At least the British government realised the folly of continuing to pursue unproven and over-expensive carbon capture and storage. With this precedent it should now abandon EPR.

The second question is: why does the British government instead not aggressively pursue energy efficiency, when it is proven to be far more cost-effective than investing in new generating plant, especially nuclear power?

Only last week the government's own National Infrastructure Commission issued a report, Smart Power, arguing that a smarter use of power built around three innovations, interconnection, storage, and demand flexibility, could save consumers up to £8 billion a year by 2030, help the UK meet its 2050 carbon targets, and secure the UK’s energy supply for generations.

In the same week, a report from UNEP shows that the potential for energy policy to increase energy efficiency in industry alone is massive. [Disclosure: I am one of the authors.]

In a webinar to promote the report's release, co-author Kit Oung made the overwhelming case, based on research: "A report from the University of Cambridge has said that 73% of energy used in industry can be saved using currently available technical know-how and technology. This could result in 22 power stations not needing to be built in 2020 if just between 21 and 47% of those savings were to be achieved in the UK. And yet, according to the International Energy Agency less than 1% of global average energy savings are achieved by industrial energy efficiency around the world," he said.

The above statistics, taken together, point to a complete failure to use economic and scientific evidence in the design and implementation of a sensible UK energy policy that would put security, efficiency, emission reductions and value for money at its heart.

It's unlikely that we will get a proper answer to either of these questions from the British Government. So we must supply our own. As another of the report's authors, Stephen Fawkes, puts it: "The problem is, politicians like big projects. By contrast, energy efficiency, although much more beneficial, is almost invisible, and is certainly lots of small projects."

And energy projects don't come much bigger than nuclear power. As Jimmy Cliff might have put it: "the bigger they come, the harder they fall."

Labour must now choose


All of this shows why Labour finally see the folly of its continuing support for Hinkley C.

It must condemn the deal. It must use this stance to attack the folly of Tory policy.

And it must come up with a clean, green, nucelar-free low carbon energy policy based on demand reduction and demand management, renewable energy, community energy and energy storage – as Germany is doing – which would save everyone money: industry, consumers and the taxpayer.

Further Reading: Books by David Thorpe


Thursday, October 01, 2015

The UK Government's new nuclear dreams & the reality of EPR delays and costs

Last week the British Chancellor of the Exchequer, George Osborne, was in China. Despite the economic woes facing that country he still thinks that is possible to obtain further inward investment into the UK and he went carrying a £2 billion sweetener: a guarantee underwritten by public funds for investment in a new nuclear power station Hinkley Point C in Somerset, England.

Osborne is hoping to do a deal with the China General Nuclear Corporation and China National Nuclear Corporation. China is building half of the 60 new nuclear power stations being constructed in the world. Its expertise would be invaluable were the project ever to go ahead... but this is still a remote prospect. The persistence of the government in pursuing this is perplexing.

While Vincent de Rivaz, chief executive of EDF Energy, welcomed the announcement of the infrastructure guarantee as a “clear sign” of the government’s commitment to Hinkley Point C, everybody but the UK government has doubts about it.

This even applies to the leading environmentalists George Monbiot, Mark Lynas and Chris Goodall, who had previously argued the case for nuclear power, earning the wrath of many of the colleagues in the green movement. They have now committed another U-turn and are saying that because the project will be so expensive and so late in delivery, it is better to spend the estimated £24.5bn investment on other low-carbon technologies.

Greenpeace UK’s chief scientist, Dr Doug Parr, issued a statement calling the announcement “a PR smokescreen to give the impression that this project is moving forward when it’s actually bogged down in a swamp of troubles. Hinkley hasn’t got funding or safety clearance, and everyone outside the nuclear industry and our blinkered government thinks it’s absurd, yet the Chancellor is ignoring them all to plough ahead with this overpriced, overrated, and overtime project.”

The proposals have passed all the regulatory hurdles so far set by the Office for Nuclear Regulation.

Amber Rudd, the Secretary of State for the Department of Energy and Climate Change (or should that be Nuclear Waste? See my prrevious article) went on the radio to make the point that since the future has to be low carbon and nuclear power provides that reliably, although expensive the plant is worth the money.

Part of the problem is that the government is backing the wrong technology.

European Pressurised Reactor delays and costs


Hinkley Point C is a European Pressurised Reactor. There are no completed examples of this model and the four under construction have suffered huge delays and cost overruns:

Name
Start of work
Original completion date
Currently expected completion date
Initial cost
Current estimated cost
Budget over-run
Olkiluoto 3 in Finland
2005
2009
2018
€3.7bn
€8.5bn
230%*
Flamanville 3 in France
2007
2013
End 2018
€3.3bn
€10.5bn
318%
Taishan 1 in China
2009
2013
2016
€7bn
unknown

Taishan 2 in China
2010
2014
2016
€7bn
unknown


* Since Areva guaranteed a price at the start of €3 billion and is now locked in legal dispute with operator TVO, the actual costs to both companies are secret and likely to be above €8.5bn if we consider that the plant was the first of its kind to be attempted and the extent of the budget overrun for Flamanville 3.

How this compares to Hinkley C: Hinkley C was granted planning permission in 2013. The estimated cost has risen from €7.71bn to €33.75 billion in 2015 (450% increase) – over three times the final estimated cost of Flamanville 3. And building hasn't begun yet.

Originally planned to start generating electricity by the end of 2017 it looks likely as though, if it ever does start generating, it will be after 2024 (7 year delay – & building hasn't begun yet.

An investigation into Hinkley Point C by HSBC bank saw “ample reason for the UK Government to delay or cancel the project”. Austria has launched a legal challenge to the European Commission’s ruling that the guaranteed price for the new Hinkley reactors amounts to legal state aid and the case is expected to last over two years.

But none of this seems to bother the British government.

It is significant that France itself does not plan to build another EPR, but it is quite happy to build them elsewhere, and this is why it welcomes Osborne's announcement of the investment guarantee: EPRs are built by two French state-owned companies, Areva and EDF.

The French government owns 86.52% of Areva and needs foreign cash to bail out the company, which is in deep financial trouble; it posted a €4.8 billion loss for 2014. A rescue plan is under consideration, which may include some form of bailout from EDF, itself owned 85% by the state.

Part of the rationale of the Blair Labour government, which began the Hinkley C project, was that it should replace coal and other power stations that will be ending their life in the next two years in the UK. This rationale no longer holds water.

What's a better design for a modern nuclear power plant than the EPR? Well, a Japanese company, Hitachi, is interested in building a new nuclear power station of a different type on an island off the north-west coast of Wales in the UK: Anglesey. A previous old nuclear power station on the site is being decommissioned. The new plant would be an Advanced Boiling Water Reactor: ABWR, said to be safer and cheaper.

Even so, a telephone survey of local residents being conducted by Natural Resources Wales, the Welsh Environment Agency, is uncovering significant local opposition to the nuclear new-build despite the project being favoured by the local MP and council.

Safety

The Chinese EPR reactors may not be subject to the same degree of safety scrutiny as those in Europe.

Safety tests at the Flamanville EPR nuclear power plant were only carried out in 2014 after France tightened its nuclear safety regulations, France’s Nuclear Safety Authority (ASN) told the South China Morning Post in April this year, adding that no such tests were conducted on the two Taishan reactors before French nuclear manufacturer Areva shipped them to China.

Since shipping, the Chinese authorities have been alerted and Areva has said that the Taishan reactors meet Chinese nuclear standards.

“The reactor vessel heads for the Taishan reactors were evaluated as being in compliance with the Chinese regulations. The French and Chinese safety authorities are in contact following the information provided by the French watchdog,” the company told the South China Morning Post.

Nuclear waste

One thing that Amber Rudd has not quizzed about by the media today was what to do with the nuclear waste that would be generated by any new nuclear power stations.

I mentioned last week the problems the UK persists in having with its existing high-level nuclear waste stockpile, which nobody wants to have buried in their backyard.

The French have the same problem, having been struggling to overcome public opposition and legislative obstacles to a plan to bury hundreds of thousands of cubic metres of high-level, long-lived nuclear waste 500 metres below the rural village of Bure.

The CIGEO project, managed by l’Agence nationale pour la gestion des déchets radioactifs (ANDRA), was estimated to cost €16.5bn in 2005, but an estimate in 2009 set the figure at €36bn. The final cost is unknowable, and work has not yet begun.

Of course, China, not being a democracy, can bury nuclear waste wherever it wants.

Perhaps we should ship all of Britain and France's to China, as part of the deal.

Monday, March 12, 2012

Protestors mark Fukushima anniversary by blockade of EDF nuclear site

Jonathan Porritt at Hinkley C protest
Jonathan Porritt addressing the crowd at this weekend's Stop Hinkley anti-nuclear rally slammed the LibDems for their U-turn on nuclear newbuild.
The one year anniversary of the devastating earthquake and tsunami on Japan's north east coast was marked in the UK over the weekend by the first 24-hour blockade of a nuclear site in over 30 years.

Following a demonstration by over 1000 people at Hinkley Point C on the Severn estuary in Somerset, which veteran campaigner Martyn Lowe described as the largest anti-nuclear action in this country since protests against the Torness power station in 1979, 100 people blocked the main entrance to the site, stopping all traffic from entering or leaving for over 24 hours.

The peaceful demonstration and blockade were organised by Stop New Nuclear, a coalition of anti-nuclear groups which includes the Somerset-based Stop Hinkley. Its spokesperson, Camilla Berens, called this a “double record" for nuclear protest in this country.

The blockade formally ended at 2pm on Sunday when Japanese Buddhist monks performed a prayer for the victims of the tsunami that precipitated the Fukushima disaster and urged the UK government to take a more enlightened view on energy provision.

Martyn Lowe added, “It is clear that the tide is turning against the government’s push for a ‘nuclear renaissance’. The British public is waking up to the fact that ‘new nuclear’ is dangerous, expensive and completely unnecessary.”

Among those who addressed the crowd were Green MP Caroline Lucas, environmental campaigner Jonathon Porritt, and Makoto and Akiko Ishiyama, a Japanese couple who were evacuated from the area around Fukushima, Japan.

“The government says it is now safe and they want local people to come back, but it’s a total lie,” Makoto Ishiyama told the crowd. “There is still a risk, it’s not safe and the accident isn’t over.”

Jonathon Porritt, who is launching a new book which provides a 'warts and all' overview of nuclear giant EDF Energy’s influence on Whitehall and Westminster, told the assembly that new nuclear power stations like Hinkley C could never operate without massive public subsidies towards their costs, including insurance and radioactive waste management.

Such potential subsidies are currently the subject of a legal complaint to the European Commission.

Jonathon Porritt said he found it “unbelievable" that nuclear energy was being put forward as a solution to climate change due to the expense and the timescale, as well as EDF's recent record in constructing plants which have been over budget and over schedule, and he called on the government reconsider its energy strategy.

He added: “It is clear we can do everything we need to do without nuclear power. The whole thing is being fixed to suit the nuclear industry. In Germany, they are working towards a nuclear-free future that affordable and realistic. Why is it we don’t think Germany is a really good model to follow?”

Porritt slammed the Liberal Democrats as they gathered for their annual conference. Referring to the U-turn on their previous anti-nuclear policy, he said: “It seems there is no betrayal to which they will not stoop to keep in power.”

Green Party MP, Caroline Lucas, echoed Porritt’s call for an end to nuclear power in the UK. She added, “The £60 billion the government wants invested in new nuclear is £60billion that should be channelled into developing renewable energy sources and making them fit for purpose in the 21st century”.

Stop Hinkley spokesman Crispin Aubrey said: “This has been one of the biggest protests ever held at Hinkley Point and shows the strength of feeling against EDF’s plans. The new reactors would be a constant drain on public funds and we don’t need nuclear power to keep the lights on.”

Plans for new nuclear

Currently, EDF has permission to carry out “preparatory works” on the 400 acre Hinkley C site but does not yet have safety approval for their new nuclear plant or planning consent to build the twin reactors.

The Office for Nuclear Regulation, which overlooks the safety aspects of nuclear power in this country, has granted an interim Design Acceptance Confirmation (DAC) and interim Statement of Design Acceptability (SoDA) to two designs for new reactors in the UK: Westinghouse's AP100 and EDF / AREVA’s EPR (European Pressurised Reactor). All the reports supporting this are here.

However, Westinghouse has not found a customer in this country, leaving EDF / AREVA's design as the only one being progressed at the moment; the first instance of this design is intended to be Hinkley Point C.

These companies are this year to provide the ONR with further information in an attempt to achieve final Design Acceptance Confirmation (DAC) and a Statement of Design Acceptability (SoDA).

The ONR are says that EDF has missed deadlines due to "their resources being deployed on assessment of the impact of the Fukushima event".

The Environment Agency last month granted an environmental permit to EDF Energy's and Centrica's joint venture company, NNB Generation Company Limited (NNB GenCo), which will be constructing the power station, relating to discharges of waste water generated from site preparation and construction activities at the Hinkley site.

Clean-up costs

Luckily, no one has yet died of radiation poisoning after the Fukushima accident, but the Japan Centre for Economic Research has estimated the entire cost of compensation and decommissioning of the six Fukushima reactors at between £330bn and £415bn.

The Japanese government has already agreed to provide nuclear operator TEPCO £9bn and the company has asked for an additional £7bn. This does not include government funds used to underwrite the cost of compensating the victims of the disaster.

This puts in perspective the public liability of just £1 billion accepted by EDF for any accident at one of their new nuclear power stations. The UK Government has agreed that it would foot the bill for any amount over this, were the worst to happen.

Back at Hinkley, Crispin Aubrey said that the weekend's action followed an occupation by protesters at the end of February of a barn in the middle of the building site for Hinkley C.

This barn was occupied by the group for two weeks. Aubrey said that EDF obtained an injunction to remove the protesters but tried to extend the ban to any action by Stop New Nuclear.

"This was opposed successfully in the High Court by the organisation and by Stop Hinkley, on the basis of the right to free speech," he said.

He added that EDF still lacked the finance to proceed and there were strong doubts that the power station would ever be completed.