EDF May Cut Nuclear Output in North France as River Levels Drop.

By Eva Brendel, August 19, 2025
Electricite de France SA will likely cut nuclear power production in northern parts of the country this week because of forecast shallow waters on the Meuse River.
Low flows may affect output from the Chooz plant located near the Belgian border starting Friday, according to a company statement.
“The Meuse is quite far north for this sort of restriction, so it’s notable for that reason,” said William Peck, senior power analyst at Energy Aspects Ltd. “But given the weather forecasts and the time of year, I don’t think we’ll see a major ongoing issue or much additional upside risk from it.”
The country’s atomic power plants have been disrupted recently amid weather-related pressures. A heat wave forced several reactors to curb output because the river water used to cool them became too warm.
In addition, four reactors were shut down after a swarm of jellyfish clogged the filter drums. Their growing numbers can be linked to climate change.
Elsewhere, EDF ended heat-related production warnings on the Garonne and Rhône rivers that were imposed almost two weeks ago………………… https://www.bloomberg.com/news/articles/2025-08-18/edf-to-cut-nuclear-output-in-northern-france-on-low-river-levels
Hellish’: heatwave brings hottest nights on record to the Middle East.

Temperatures did not drop below 36C in Sedom, Israel on Tuesday
night, while several parts of Jordan stayed above 35C on Monday.
Guardian 15th Aug 2025, https://www.theguardian.com/world/2025/aug/15/hellish-heatwave-brings-hottest-nights-on-record-to-the-middle-east
Heat Waves Are a Growing Threat to Europe’s Nuclear Power Supply

Bloomberg News, Eamon Akil Farhat, Aug 08, 2025, https://financialpost.com/pmn/business-pmn/heat-waves-are-a-growing-threat-to-europes-nuclear-power-supply
Heat waves across Europe are increasing the need for nuclear power plants to be taken offline, with the situation expected to worsen in the coming decades and few options for mitigation.
(Bloomberg) — Heat waves across Europe are increasing the need for nuclear power plants to be taken offline, with the situation expected to worsen in the coming decades and few options for mitigation.
Weather-related nuclear outages, mainly caused by elevated temperatures of cooling water, increased threefold in the period from 2010 to 2019, compared with 1990 to 2009, according to a study published in Energy Economics. Due to climate change, the intensity and length of these heat waves is expected to increase.
“Summer heat waves are climbing fast — 0.85 more days each year since 2010,” said Jess Hicks, a weather analyst at BloombergNEF. “That trajectory spells growing cooling-water risks for French nuclear plants.”
…………………………….A separate study published in the journal Energy in April looked at two reactors operated by Electricite de France SA, Chooz and Golfech, which rely on river water for cooling. It concluded that climate change will increase water temperature and also reduce flow volumes. If both plants are still operating by 2050, the level of outages would have doubled at Chooz and increased tenfold for Golfech. In the worst years, about 14% of Chooz’s generation would need to be curtailed.
When faced with high water temperatures and low flows, nuclear operators have limited options.
A closed-cycle cooling system, which relies less on the external environment, is one option. However, the Energy Economics study found that retrofitting such systems would cost about $500 million per nuclear power plant.
Another option would be to relax environmental limits on river temperatures, allowing reactors to keep operating for longer during heat waves. Such restrictions have been waived in the past, for example in 2022 when the French nuclear regulator ASN temporarily allowed five nuclear plants to discharge hotter water into rivers as the nation struggled with an energy crisis.
EDF has been studying other methods to reduce water consumption at nuclear power plants, such as capturing the cooling vapor given off by the facilities.
Europe’s electricity system tested by heatwaves as air-conditioning use soars – nuclear power plants affected.

Record temperatures force temporary shutdowns at power plants.
Europe’s energy systems have come under intense strain this summer as
repeated heatwaves have driven up demand for electricity and forced plants
to pause production. June was the hottest on record in western Europe,
fuelling a rise in the use of air conditioning and prompting a sharp
increase in electricity prices. Most parts of the region experienced at
least two intense periods of heat in June and July, with some suffering
more.
The barrage of heatwaves this summer marked a “massive change”
for Europe’s energy systems, said Jan Rosenow, leader of the energy
programme at Oxford university’s Environmental Change Institute. Peak
electricity demand has historically happened in winter in Europe, but as
“summers get hotter at some point that might flip”, he said. SSE, the
UK power company, said generation from its hydropower plants dropped by 40
per cent quarter on quarter to the end of June, as Britain also grappled
with heatwaves and severe drought. Inland nuclear power plants across
France and Switzerland temporarily suspended or reduced activity earlier in
the summer, as it is harder to cool reactors in hot weather.
In France, 17 out of 18 nuclear power plants faced capacity reductions during the
June-July heatwave, Ember said. Most inland nuclear plants rely on rivers
to cool reactors and spent fuel, heating the water in the process before
discharging it back. But with many rivers already hot, the plants could not
discharge heated water without potentially damaging the river ecology.
FT 3rd Aug 2025, https://www.ft.com/content/23b3dc59-b40f-48e2-ad93-e301de7ac5f2
Melting glaciers threaten to wipe out European villages – is the steep cost to protect them worth it?

Melting glaciers threaten to wipe out European villages – is the steep
cost to protect them worth it? Switzerland spends almost $500m a year on
protective structures, but a report carried out in 2007 for the Swiss
parliament suggested real protection against natural hazards could cost six
times that. Is that a worthwhile investment? Or should the country – and
residents – really consider the painful option of abandoning some of their
villages?
BBC 3rd Aug 2025,
https://www.bbc.co.uk/news/articles/cj4w9ggzxv4o
Russian nuclear submarine base hit by tsunami.
Waves triggered by 8.8 magnitude earthquake damaged base that houses Pacific Fleet
Russia’s far east nuclear submarine base appears to have been damaged by
the tsunami that swept the country’s Pacific coast on Wednesday,
according to satellite imagery obtained by The Telegraph. The waves,
triggered by an 8.8 magnitude earthquake, hit the Rybachiy base in
Kamchatka peninsula, which houses most of the nuclear submarines in
Russia’s Pacific Fleet. A section of one pier has bent away from its
original position, possibly indicating that it was detached from its
moorings, images taken by the Umbra Space satellite on Thursday morning
have revealed.
It does not appear that a submarine was moored alongside at
the time of impact and experts said damage to the structure alone would
have little military significance. However, questions were raised about
whether the tsunami caused any further harm to the base, which was thought
to have been hit within 15 minutes of the earthquake.
Telegraph 1st Aug 2025, https://www.telegraph.co.uk/world-news/2025/08/01/russian-nuclear-submarine-base-earthquake-satellite/
We’re having a heatwave -and nuclear power can’t cope.

Nuclear power ……….is a sitting technological duck when extreme temperatures strike.
by beyondnuclearinternational, https://beyondnuclearinternational.org/2025/07/27/were-having-a-heatwave/
And nuclear power can’t cope. Worse still, it’s actually a liability under ever more extreme climate conditions, write Karl Grossman and Harvey Wasserman
At the core of the latest attempted “renaissance” of nuclear power is the Big Lie that atomic reactors are an answer to global warming. In fact, they are significant sources of heat.
There are more than 400 nuclear power plants in the world today that fission atoms at 300 degrees Centigrade, (572 degrees Fahrenheit). More are under construction or proposed. As the International Atomic Energy Agency states, “water-cooled reactors offer heat up to 300 degrees Celsius. These types of reactors include pressurized water reactors (PWRs), boiling-water reactors (BWRs), pressurized heavy-water reactors, and light-water-cooled graphite-moderated reactors (LWGRs).”
Some heat is absorbed in the water—drawn from water bodies—used to cool these nuclear power plants and then returned, still with considerable heat, to rivers or seas.
The heatwave going on in recent weeks in Europe, in combination with this discharge of heated water from nuclear plants, has caused nuclear plants there to shut down.
Consider these headlines from recent days:
“France and Switzerland shut down nuclear power plants amid scorching heatwave,” was the July 3rd headline on Euronews. As the piece explained: “To cool down, nuclear power plants pump water from local rivers or the sea, which they then release back into water bodies at a high temperature. However, Europe’s ongoing heatwave means that the water pumped by nuclear sites is already very hot, impacting the ability of nuclear plants to use it to cool down. On top of this, nuclear sites run the risk of posing a dangerous threat to local biodiversity, by releasing water which is too hot into rivers and seas.”
A New York Times article, also dated July 3rd, related how in Europe, “operators shut down one of the two reactors at the Golfech nuclear power plant in southern France after forecasts that the Garonne River, from which it draws water and then discharges it after it is used in the plant as coolant, “could top…82 degrees Fahrenheit.” The Times continued: “The Beznau Nuclear Power Plant in Switzerland, built along the Aare River followed suit, shutting down one of its reactors on Tuesday and the other on Wednesday.”
It quoted its European program director, Pawel Czyzak, saying: “Heatwaves will not go away—they will only get more severe in the future…Luckily, there is no lack of sunshine during heatwaves. The biggest opportunity is to store solar electricity…”
“The French nuclear fleet has been impacted the most, with all but one of the 18 facilities experiencing some type of capacity reduction,” said the report.
It continued: “While heatwaves bring major changes, these are partially offset by the large volumes of solar energy available during daytime. In fact, June 2025 was the highest European Union solar electricity production month on record.” And this “kept the grid well-supplied during daytime hours.”
The Ember report also pointed out, “Solar power is one of the cheapest forms of electricity that Europe has.”
Nuclear power, beyond being subject to catastrophic accidents such as those that occurred at Fukushima, Chernobyl and Three Mile Island, extreme cost, substantial carbon emissions during the nuclear “lifecycle”—mining of uranium, milling it, enrichment of the uranium fuel and other operations—is a sitting technological duck when extreme temperatures strike.
Ember, an independent London-based global energy think tank, on July 4th issued a report headed: “Heat and power: Impacts of the 2025 heatwave in Europe.” It noted: “Heatwaves are becoming more frequent in Europe, putting electricity grids under severe stress.”
“Europe embraces its new reality with heatwaves: ‘They are no longer an exception,’” was the headline of a July 3rd El Mundo article. “Heatwaves in Southern Europe are becoming increasingly early and intense,” it reported.
It quoted Meto-France climatologist Christine Berne saying: “Heatwaves are no longer an exception. They are now more frequent, longer, and spread over larger geographical areas…The phenomenon is directly related to global warming, which is profoundly altering weather patterns, both in France and elsewhere.”
In California, a “bait and switch” to continue operation of the Diablo Canyon atomic reactors is super-heating the Pacific Ocean. In 2018, Pacific Gas & Electric was being forced to stop violating state and federal water protection laws with its massive heat emissions from the twin nuclear power plants. Facing the expensive requirement to build cooling towers, the company agreed to shut down Diablo in 2024 and 2025, ushering in a transition to cheaper, safer, cleaner, more reliable and more job-producing renewables. But in 2022, Governor Gavin Newsom killed the phase-out agreement he had signed as Lieutenant-Governor. So, Diablo still pours billions of gallons of irradiated super-heated water into the Pacific, joining the billions of gallons of irradiated liquid that are pouring in from the site of the Fukushima catastrophe.
In addition to that heat, all nukes emit radioactive fallout, including a radioactive form of carbon, Carbon 14, along with other lethal pollutants, while costing ratepayers up to 10 times more than solar, wind, geothermal and battery backup.
Solar energy, its cost having plummeted in recent years, is now 90 percent cheaper per watt than nuclear power. Further, its efficiency level — its efficiency in converting sunlight to electricity — has dramatically increased. Safe, clean, renewable energy sources — primarily in the form of solar panels and wind turbines — now account for more than 80 percent of the world’s new electric generating capacity.
What’s gone on in the last several weeks in Europe is no exception. The heat is on all over the globe. But there’s solar (and wind) power continuing to function well, while adding no heat, radiation or carbon of its own — unlike the planet’s hyper-lethal nuke reactors.
Meanwhile, the nuclear industry is pushing a new kind of reactor — a fusion reactor that would operate at an astronomical level of heat. It would utilize, instead of fission, the fusion of atoms — the process that happens on the sun, and notes the World Economic Forum: “Temperatures in excess of 150 million degrees Celsius — 10 times hotter than the center of the sun — re required for fusion to occur on Earth.”
“Unsurprisingly,” says the Geneva, Switzerland-based organization, “achieving and controlling these enormous temperatures is a substantial technological challenge. This usually requires using incredibly powerful magnets to contain a hot plasma, preventing it from touching and melting the sides of vessels. Fusion research reactors have achieved temperatures in excess of 300 million degrees Celsius.”
The World Economic Forum’s 2020 analysis is headed: “What is fusion energy, and what will it take for it to go mainstream?”
What does 150 million degrees Celsius convert to in Fahrenheit: 270 million degrees!
To fantasize that Earth-threatening global warming happening now and gaining in intensity can be dealt with by fission nuclear power plants operating at 572 degrees Fahrenheit or fusion nuclear power plants operating at 270 million degrees Fahrenheit is among the great follies in human history.
Harvey Wasserman wrote the books Solartopia! Our Green-Powered Earth and The Peoples Spiral of US History and co-convenes the Grassroots Emergency Election Protection Coalition . Karl Grossman is the author of Cover Up: What You Are Not Supposed to Know About Nuclear Power and Power Crazy. He the host of the nationally-aired TV program Enviro Close-Up with Karl Grossman.
Greenpeace hails Italian court ruling allowing climate case against energy company Eni to continue

Italy’s highest court has ruled that a lawsuit brought by climate
activists against Italian energy company Eni and its government
shareholders can go ahead, in what Greenpeace said on Tuesday was a victory
for efforts to pursue climate justice in Italy.
In an ordinance released on
Monday, the Court of Cassation rejected the company’s motions to dismiss
the lawsuit on jurisdictional grounds and ordered the case to be heard on
its merits by a Rome tribunal. Eni said that it was greatly satisfied with
the decision, and said it expected that the Rome court would ultimately
“dismantle” the climate activists’ claims of responsibility.
Yahoo News 22nd July 2025, https://uk.news.yahoo.com/greenpeace-hails-italy-court-ruling-130205151.html
‘Keeping us hooked on fossil fuels’: how can we negotiate with autocracies on the climate crisis?

When it comes to the climate crisis, how do you negotiate with an
autocracy? It is the case today, and it is almost certain to remain so for
the dwindling number of years in which we can hope to stave off the worst
of climate breakdown, that the bulk of the world’s greenhouse gas
emissions come from countries that are not democratic. Add to that, many of
the major suppliers of oil and gas – the Gulf petrostates for instance,
plus Russia, Venezuela and a few others – are likewise authoritarian.
Their outsize impact puts autocratic nations in the spotlight when it comes
to global climate talks. How their governments decide to act will be
crucial to the planet’s future. But while democracies are subject to the
whims of electorates, which can often be unpredictable, autocratic nations
tend to be far more inscrutable. Take the small handful of the world’s
biggest fossil fuel companies, referred to as the “carbon majors”. They
hold our future in their hands, and of the top 20 with the biggest carbon
output globally, 16 are state-owned and were responsible for 52% of global
emissions in 2023.
Guardian 18th July 2025, https://www.theguardian.com/environment/2025/jul/18/climate-crisis-fossil-fuels-autocracies-authoritorian-countries
Wildfires: Could this be the worst year ever?

The area of land burnt in Europe this year is significantly higher than the average, and Britain is at risk as well thanks to sustained high global temperatures. Even Britain,
a country with a climate not normally conducive to wildfires, is recording
record amounts of burnt land for this stage of the summer. These fires are
starting abnormally early, and appear to be more severe than previous
years. What is causing them, and could 2025 be the worst year yet?
Times 13th July 2025, https://www.thetimes.com/uk/environment/article/wildfires-could-this-be-the-worst-year-ever-twnx25v7s
SIZEWELL C, RISING SEA LEVELS AND EDF’s SILENCE

The dust has just about settled since Labour’s ‘golden nuclear
moment’ laid out by Rachel Reeves in her recent Spending Review. Plans
for the monstrous Sizewell C took another step forward, nudged along by the
offer of another £14.2 billion of taxpayers’ money, together with a
further £2.5 billion promised for Small Modular Reactors, and roughly the
same amount for fusion, the nuclear industry’s very own black hole.
So
loud were the fanfares, so overblown the hype, that the real story of that
week got lost. EDF’s deeply ingrained habits of secrecy and deceit were
– yet again – exposed to the harsh light of a Freedom of Information
request from the indefatigable Together Against Sizewell C (TASC). One of
the principal concerns that TASC has doggedly pursued over the last few
years is the vulnerability of Sizewell C being built on one of Europe’s
most rapidly eroding coastlines and its lack of resilience to the impacts
of climate change. The evidence regarding future sea level rise goes from
deeply worrying to totally terrifying – with the very real possibility of
at least a 1 metre rise – and possibly as much as 2 metres – by 2100.
Given that the spent fuel used at Sizewell C throughout its operating life
(around 4,000 tonnes) will need to be stored on site until at least 2160
this is clearly a matter of the greatest concern.
Johnathon Porritt 7th July 2025, https://jonathonporritt.com/sizewell-c-flood-risk-and-edf-silence/
The Australia-Tuvalu climate migration treaty is a drop in the ocean

Australia has offered a lifeline to the people of Tuvalu, whose island is threatened by rising sea levels. But the deal comes with strings attached – and there will be millions more climate migrants in need of refuge by 2050
By New Scientist, 2 July 2025, https://www.newscientist.com/article/mg26635502-900-the-australia-tuvalu-climate-migration-treaty-is-a-drop-in-the-ocean/
A lifeline has been extended to the people of Tuvalu, a low-lying Pacific nation where rising sea levels are creating ever more problems. Each year, Australia will grant residency to 280 Tuvaluans. The agreement could see everyone currently living in Tuvalu move within just a few decades.
Effectively the world’s first climate migration agreement, the Australia-Tuvalu Falepili Union will also provide adaptation funds to help those who stay behind.
Is this a model for how climate migration can be managed in an orderly way, before disaster strikes? Far from it. To get this deal, Tuvalu must allow Australia a say in future security and defence matters. Few other countries are likely to agree to similar terms.
Tuvalu’s population is also very small. Taking in around 10,000 climate migrants would be inconsequential for a country of 28 million like Australia. Worldwide, it is estimated that between 25 million and 1 billion people might be forced to move by 2050 because of climate change and other environmental factors. Where will they go?
Many argue that the wealthy countries that emitted most of the carbon dioxide that is warming the planet have a moral duty to help people displaced by climate change. But these kinds of discussions have yet to be translated into the necessary legal recognition or acceptance of forced climate migrants. On the contrary, many higher-income nations seem to be becoming more hostile to migrants of any kind.
There has been a little progress in setting up “loss and damage” funds to compensate lower-income countries for the destruction caused by global warming. This could help limit the need for climate migration in the future – but the money promised so far is a fraction of what is required.
The most important thing nations should be doing is limiting future warming by cutting emissions – but globally these are still growing. Sadly, the Falepili Union is a drop in the ocean, not a turning of the tide.
What Greenland’s Ancient Past Reveals about Its Fragile Future

The collapse of the world’s second-largest ice sheet would drown cities
worldwide. Is that ice more vulnerable than we know?
Last year, Scientific American chief multimedia editor Jeffery DelViscio spent a month on the
Greenland ice sheet, reporting on the work of scientists taking ice and
rock cores from the Northeast Greenland Ice Stream (NEGIS) and the bedrock
underneath. This massive flow of ice drains ice into the ocean, and its
melt has been speeding up in the past decade.
Bedrock samples under ice
from an area in northwest Greenland indicate it was ice-free as recently as
about 7,000 years ago when global temperatures were only a few degrees
warmer than they are now. The sheet won’t melt all at once, of course,
but scientists are increasingly concerned by signs of accelerating
ice-sheet retreat. A recent report showed that it has been losing mass
every year for the past 27 years. Another study found that nearly every
Greenlandic glacier has thinned or retreated in the past few decades.
The NEGIS itself has extensively sped up and thinned over the past decade. If
the entire Greenland ice sheet melted, global sea levels would rise by
about 24 feet, inundating coastal cities, farmland and homes. “I have,
for the first time ever in my career, datasets that take my sleep away at
night,” says Joerg Schaefer, GreenDrill’s co-principal investigator.
“They are so direct and tell me this ice sheet is in so much trouble.”
Scientific American 17th June 2025, https://www.scientificamerican.com/article/greenlands-ice-sheet-collapse-could-be-closer-than-we-think/
France and Switzerland shut down nuclear power plants amid scorching heatwave

By Euronews, 02/07/2025, https://www.euronews.com/2025/07/02/france-and-switzerland-shut-down-nuclear-power-plants-amid-scorching-heatwave
To cool down, nuclear power plants pump water from local rivers or the sea, which they then release back into water bodies at a higher temperature. However, this process can threaten local biodiversity if water is released which is too hot.
Due to a scorching heatwave which has spread across Europe in recent days, a number of nuclear power plants in Switzerland and France have been forced to either reduce activity or shut down completely as extreme temperatures have prevented sites from relying on water from local rivers.
To cool down, nuclear power plants pump water from local rivers or the sea, which they then release back into water bodies at a higher temperature.
However, Europe’s ongoing heatwave means that the water pumped by nuclear sites is already very hot, impacting the ability of nuclear plants to use it to cool down. On top of this, nuclear sites run the risk of posing a dangerous threat to local biodiversity, by releasing water which is too hot into rivers and seas.
In light of the heat, Axpo – which operates the Beznau nuclear power plant in Switzerland – said it had shut down one of its reactors on Tuesday, adding that a second reactor was operating at limited capacity.
“Due to the high river water temperatures, Axpo has been increasingly reducing the output of the two reactor units at the Beznau nuclear power plant for days and reduced it to 50 per cent on Sunday,” said the operator.
The Beznau nuclear power plant’s reactors are located directly on the River Aare, where temperatures have reached 25 degrees Celsius in recent days, leading Axpo to curtail its activities to prevent “excessive warming of the already warm water” which could strain local biodiversity.
Although Switzerland has decided to phase out nuclear power by 2033, existing plants are able to continue to operate as long as they are safe.
Meanwhile, on Monday French electricity company EDF shut down the Golfech nuclear power plant, located in the southern department of Tarn-et-Garonne, amid extreme heat warnings in the region and concerns that the local river could heat up to 28 degrees, even without the inflow of heated cooling water.
France has a total of 57 active nuclear reactors in 18 power plants. According to EDF, the country obtains around 65% of its electricity from nuclear energy, which the government considers to be environmentally friendly.
Output has also been reduced at other sites, including at the Blayais nuclear power plant in western France, as well as the Bugey nuclear power plant in southern France, which could also be shut down, drawing their cooling water from the Gironde and Rhône rivers.
Although the production of nuclear power has had to be curtailed in light of extreme heat, the impact on France’s energy grid remains limited, despite the fact that more electricity is being used to cool buildings and run air conditioning systems.
Speaking to broadcaster FranceInfo, French grid operator RTE ensured that “all the nuclear power sites which are running are able to cover the needs of the French population. France produces more electricity than it consumes, as it currently exports electricity to neighbouring countries.”
EDF shuts down Golftech nuclear plant due to high river temperature

French utility EDF said it shut down the No. 1 reactor at the Golftech
nuclear power plant in southwestern France late on Sunday, ahead of an
anticipated rise in the temperature of the Garonne river that supplies the
plant’s cooling water.
Reuters 30th June 2025, https://www.reuters.com/business/energy/edf-shuts-down-golftech-nuclear-plant-due-high-river-temperature-2025-06-30/
-
Archives
- April 2026 (173)
- March 2026 (251)
- February 2026 (268)
- January 2026 (308)
- December 2025 (358)
- November 2025 (359)
- October 2025 (376)
- September 2025 (257)
- August 2025 (319)
- July 2025 (230)
- June 2025 (348)
- May 2025 (261)
-
Categories
- 1
- 1 NUCLEAR ISSUES
- business and costs
- climate change
- culture and arts
- ENERGY
- environment
- health
- history
- indigenous issues
- Legal
- marketing of nuclear
- media
- opposition to nuclear
- PERSONAL STORIES
- politics
- politics international
- Religion and ethics
- safety
- secrets,lies and civil liberties
- spinbuster
- technology
- Uranium
- wastes
- weapons and war
- Women
- 2 WORLD
- ACTION
- AFRICA
- Atrocities
- AUSTRALIA
- Christina's notes
- Christina's themes
- culture and arts
- Events
- Fuk 2022
- Fuk 2023
- Fukushima 2017
- Fukushima 2018
- fukushima 2019
- Fukushima 2020
- Fukushima 2021
- general
- global warming
- Humour (God we need it)
- Nuclear
- RARE EARTHS
- Reference
- resources – print
- Resources -audiovicual
- Weekly Newsletter
- World
- World Nuclear
- YouTube
-
RSS
Entries RSS
Comments RSS


