nuclear-news

Nuclear- not good vibrations in France

Renew Extra 25th Jan 2025, https://renewextraweekly.blogspot.com/2025/01/nuclear-not-good-vibrations-in-france.html

France is having problems with nuclear power.  It was once the poster child for nuclear energy, which, after a rapid government funded build-up in the1980s based on standard Westinghouse Pressurised-water Reactor (PWR) designs, at one point supplied around 75% of its power, with over 50 reactors running around the country. Mass deployment of similar designs meant that there were economies of scale and given that it was a state-run programme, the government could supply low-cost funding and power could be supplied to consumers relatively cheaply.

But the plants are now getting old, and there has been a long running debate over what to do to replace them: it will be expensive given the changed energy market, with cheaper alternatives emerging. At one stage, after the Fukushima disaster in Japan in 2011, it was proposed by the socialist government to limit nuclear to supplying just 50% of French power by 2025, with renewables to be ramped up. 

That began to look quite sensible when, in 2016, faults were found with the steel forgings of some of the old PWR plants. There was an extensive programme of reactor checks, with some units having to be shut down for the duration. But the industry, though chastened by stories about cover-ups, survived, and, with a new government in power led by Macron, the 50% limit was delayed. Indeed, proposals were made for significant expansion, based in part on an upgrade European Pressurised-water Reactor (EPR) design.  

Macron said ‘Our energy & ecological future depends on nuclear power; our economic and industrial future depends on nuclear power; and France’s strategic future depends on nuclear power’:

The first EPR in France has been built at Flamanville on the Normandy coast, but all did not go well.  It was 12 years late and four times overbudget.  And new vibration problems could mean that it may not be able to run at full power. In addition, more problems (this time with stress corrosion) have been found with some of the old plants. 

With at one stage, 28 of them shut down for tests and/or repairs, EDFs financial situation became increasingly weak. And, it has got worse. With, in 2024, the French government and economy also being in some disarray, it looked as if plans for more projects might have to be reconsidered, their being reports that ‘in the absence of financial commitment from the State, EDF (is) raising the possibility of halving the investments planned in the EPR2 program in 2025.’

It was the same for EDFs programme of building more EPRs in the UK- with one at Sizewell in Suffolk being proposed to follow on from the part-built one at Hinkley Point in Somerset.  Indeed, the French Court of Auditors has just recommended ‘not approving a final investment decision for EDF in Sizewell C before obtaining a significant reduction in its financial exposure in Hinkley Point C’. 

So what next? The somewhat beleaguered French government evidently wants the European Commission to revise EU renewable energy directive to also provide support for new nuclear!  But back home, it is arguably ‘far from ready’ for a new nuclear expansion programme.  And, with nuclear costs rising, the idea of treating it as ‘low risk’ compared with renewables in EU plans is being resisted.  Then again EDF evidently think some new nuclear options are too risky- it has pulled out of work on its initial design for a Small Modular Reactor, so it is no longer a contender for the UK SMR competition.

What does all this mean for the UK?  Well, although its overall finances are not good, up until recently, EDF has done quite well out of the UK, still running its fleet of old AGRs and its single PWR, with the UK’s funding subsidy schemes providing support for French profit-making via surcharges on UK consumers bills – in the case of the proposed new RAB scheme for Sizewell C, in advance of project completion. Indeed, some might say EDF’s exploitation of the UK has been overdone and not helpful! 

Certainly, EDF’s current troubles add to the increasing level of uncertainty about Sizewell C. China had provided some backing for Hinkley, but, with there being growing concerns about security, the UK government decided that China could not be allowed to back Sizewell. So the hunt was on for new backers. However, it has proven to be hard, and with talk of the bills for these projects ballooning, allegedly to £46bn for Hinkley, the opposition lobby is getting more assertive. Hinkley Point C was originally meant to start up in 2017, but may finally get going in 2031 or so. It is a giant project, impressive in a way, but arguably not what is needed, with renewables getting so much cheaper. Same for Sizewell C- it’s getting increasingly hard to justify it.

EDF do seem to be having it tough with nuclear of late, but although the costs of the EPRs  may be disputed, whatever they turn out to be, it’s far from clear if the French EPRs will be value for money.  The UK has done quite well so far with renewables, which have helped it get its emissions down by a half between 1990 and 2022, compared to a 23% reduction in France, where nuclear is still predominant and renewable are, so far, less developed.  Time for a change everywhere? Certainly, back in 2021, the IEA and RTE Agency in France produced a study asking if it was technically possible to integrate very high shares of renewables in large power systems like that in France. It concluded that, if coupled with adequate storage and system balancing, for renewables to supply 85-90% of power by 2050 and 100% by 2060. However, it would be expensive. But then so would continuing with nuclear, maybe more so.

January 28, 2025 Posted by Christina Macpherson | business and costs, France | Leave a comment