French Energy Minister Agnes Pannier-Runacher reportedly said last month that EDF was committed to restarting all its nuclear reactors this winter.
Jean-marie Hosatte | Gamma-rapho | Getty Images
France faces a winter of discontent, energy analysts say, as deep-rooted problems with its nuclear-heavy energy strategy raise serious questions about its preparedness for the colder months.
A long-standing source of national pride, France generates roughly 70% of its electricity from a nuclear fleet of 56 reactors, all operated by state-owned utility EDF.
It makes France home to the world’s largest fleet of reactors after the U.S. and ensured Paris was less exposed than its neighbors to a dramatic cut in Russian gas supplies.
However, more than half of EDF’s nuclear reactors have been shut down for corrosion problems, maintenance and technical issues in recent months, thanks in part to extreme heat waves and repair delays from the Covid pandemic. The outages have resulted in French power output falling to a near 30-year low just as the European Union faces its worst energy crisis in decades.
“I find the France nuclear relationship really interesting because it just bluntly shows you all of the pros and cons of nuclear,” Norbert Ruecker, head of economics and next generation research at Julius Baer, told CNBC via telephone.
“Yes, its low carbon but it’s not economic. You need to nationalize EDF to make it happen. Yes, it offers baseload but wait a second, sometimes a whole plant disappears for weeks and months, so that baseload promise is not really there,” Ruecker said.
A harshly cold winter after a harshly dry and hot summer would test the country’s power supplies to the limit.
Mujtaba Rahman
Managing director of Europe at Eurasia Group
French Energy Minister Agnes Pannier-Runacher said last month that EDF was committed to restarting all its nuclear reactors this winter, Reuters reported, with closed reactors reopening each week from October.
French grid operator RTE, meanwhile, reportedly said there is no risk of a total blackout this winter but some power cuts during peak demand periods cannot be ruled out.
“Most of the nuclear power plants should be back online before the winter, so basically by November or December. So, if you trust France’s grid operator, things will be fine,” Ruecker said.
“There should be some conservatism in terms of whether France will be able to bring these reactors back on time, but we shouldn’t be overly pessimistic. The track record shows they have more or less been on time as of late.”
A ‘winter of discontent’?
French power prices climbed to a string of all-time highs this summer, peaking at an eyewatering level of around 1,100 euros ($1,073) per megawatt hour in late August. Analysts fear the country may struggle to produce enough nuclear energy to support both its own needs and those of its neighbors in the coming months.
Underlining the structural problems in the country’s nuclear fleet, France not only lost its position as Europe’s biggest exporter of electricity this year but also, remarkably, actually imported more power than it exported.
Data from energy analysts at EnAppSys that was published in July found that Sweden clinched the top spot as Europe’s largest net power exporter during the first six months of 2022. Prolonged outages in France’s nuclear fleet saw the country’s exports halve from the same period last year, and analysts at EnAppSys warned the situation showed “no signs of improving any time soon.”
To compensate, France imported expensive electricity from U.K., Germany, Spain and elsewhere.
“Thanks to the market, thanks to the power lines that we have, Europe saved France from a big blackout” this summer, Julius Baer’s Ruecker said.
“It was the U.K., Germany, Spain and to some extent Switzerland that all stepped in. So, for me, the past month really has just uncovered some of the political talk which was not always objective,” he added, referring to talk of nuclear energy as a climate solution among politicians.
France not only lost its position as Europe’s biggest exporter of electricity this year but also, remarkably, imported more power than it exported.
Bloomberg | Bloomberg | Getty Images
In a bid to protect households and businesses over the coming months, President Emmanuel Macron’s administration last month announced plans to cap power and gas price increases at 15% next year.
It represents a substantial jump from this year when the added cost of electricity for homes and small businesses was capped at 4% and gas at 0%.
Mujtaba Rahman, managing director for Europe at political risk consultancy Eurasia Group, said the extended subsidies — the most generous in the EU — are likely to add to the French government’s difficulties in facing down fiscal and budgetary battles.
“Much will depend on two factors,” Rahman said in a research note. “First, the success of the government’s energy austerity programme (which will be voluntary for households and compulsory for public bodies and industry). Secondly, the weather. A harshly cold winter after a harshly dry and hot summer would test the country’s power supplies to the limit.”
“For now, we maintain our 65% base case that Macron will dissolve the National Assembly by the middle of next year, but only if he believes that his centrist alliance has a strong chance of restoring its majority, albeit under downward pressure if France suffers a cold and troubled winter,” Rahman said.
“A winter of discontent is not a good preparation for an election.”
What does it mean for Europe?
France’s ailing power output has renewed criticism of its nuclear-heavy energy strategy at a time when many others in Europe are turning to atomic power as a replacement for a shortfall in Russian gas.
“It is important to say that if France has a nuclear problem, Europe has a problem as well in terms of electricity,” Alexandre Danthine, senior associate for the French power market at Aurora Energy Research, told CNBC via telephone.
“They are, in general, a big exporter, but in winter they need energy from neighboring countries in order to satisfy demands — whatever the situation,” Danthine said.
At the start of his presidency, Macron had committed to reducing the share of nuclear power in France’s energy mix.
Ludovic Marin | Afp | Getty Images
In France, Eurasia Group’s Rahman noted, Macron reacted angrily last month to suggestions, including from outgoing EDF boss Jean-Bernard Levy, that his “stop-start approach” to nuclear power in the last five years was partly responsible for the crisis.
In what was widely seen as a policy U-turn, Macron announced in February his intention for France to build at least six new nuclear reactors in the decades to come, with the option for another eight. At the start of his presidency, Macron had committed to reducing the share of nuclear power in the country’s energy mix.
The reversal controversially placed atomic power at the center of France’s bid to achieve carbon neutrality by the middle of the century.
Advocates of nuclear power argue it has the potential to play a major role in helping countries generate electricity while slashing carbon emissions and reducing their reliance on fossil fuels.
To critics of the energy source, however, nuclear power is an expensive distraction to faster, cheaper and cleaner alternatives. Instead, environmental campaign groups argue technologies such as wind and solar should be prioritized in the planned shift to renewable energy sources.
Sam Altman, chief executive officer of OpenAI Inc., during a media tour of the Stargate AI data center in Abilene, Texas, US, on Tuesday, Sept. 23, 2025.
Kyle Grillot | Bloomberg | Getty Images
OpenAI has finalized a secondary share sale totaling $6.6 billion, allowing current and former employees to sell stock at a record $500 billion valuation, according to a person familiar with the transaction.
Bloomberg was first to report that the deal had closed.
CNBCreported in August that OpenAI was looking to conduct a secondary share sale at a valuation of $500 billion, with investors including Thrive Capital, SoftBank, Dragoneer Investment Group, Abu Dhabi’s MGX, and T. Rowe Price.
While OpenAI had authorized up to $10.3 billion in shares for sale — an increase from the original $6 billion target — only about two-thirds of that amount ultimately changed hands.
The person briefed on internal discussions said that lower participation is being viewed internally as a vote of confidence in the company’s long-term prospects, and a sign that investor appetite remains strong, even at a $500 billion valuation — up sharply from $300 billion earlier this year.
The offer was presented to eligible current and former employees in early September, with participation open to those who had held shares for more than two years.
The sale also comes amid intensifying competition for AI talent. Meta, in particular, has reportedly offered nine-figure compensation packages in a bid to recruit top researchers.
OpenAI is among a growing cohort of high-profile startups — including SpaceX, Stripe, and Databricks — using secondary sales that allow employees to cash out while staying private. The move is widely seen as a strategy to retain talent and reward long-term employees without pursuing an IPO.
It’s October 1st, which means the $7,500 Federal EV tax credit is dead and gone. That doesn’t mean it’s the end of the road for EVs, however – BMW, Ford, GM, and others are stepping up with big rebates, clever accounting tricks, and huge discounts to keep the deals rolling! All this and more on today’s stylin’, profilin’, limousine-riding, jet flying, kiss-stealing, wheelin’ n’ dealin’ episode of Quick Charge!
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We’ve also got a hard-hitting look at both the EV and oil subsidies impacting the auto market at large, and what it means to give these two different technologies a level playing field to compete for customers on.
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Today’s episode is brought to you by Climate XChange, a nonpartisan, nonprofit organization working to help states pass effective, equitable climate policies. The nonprofit just kicked off its 10th annual EV raffle, where participants have multiple opportunities to win their dream EV.
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Solar and wind accounted for 90% of new US electrical generating capacity added in the first seven months of 2025, according to data just released by the Federal Energy Regulatory Commission (FERC). In July, solar alone provided 96% of new capacity, making it the 23rd consecutive month solar has held the lead among all energy sources.
Solar’s new generating capacity in July and YTD
In its latest monthly “Energy Infrastructure Update” report (with data through July 31, 2025), which was reviewed by the SUN DAY Campaign, FERC says 46 “units” of solar totaling 1,181 megawatts (MW) were placed into service in July, accounting for over 96.4% of all new generating capacity added during the month.
The 434 units of utility-scale (>1 MW) solar added during the first seven months of 2025 total 16,050 MW and were 74.4% of the total new capacity placed into service by all sources.
Solar has now been the largest source of new generating capacity added each month for 23 consecutive months from September 2023 to July 2025. During that period, total utility-scale solar capacity grew from 91.82 gigawatts (GW) to 153.09 GW. No other energy source added anything close to that amount of new capacity. Wind, for example, expanded by 10.68 GW, while natural gas increased by just 3.74 GW.
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Renewables were 90% of new capacity added YTD
Between January and July, new wind provided 3,288 MW of capacity additions – significantly more than the new capacity provided by natural gas (2,207 MW). Wind thus accounted for 15.2% of all new capacity added during the first seven months of 2025.
For the same period, the combination of solar and wind (plus 4 MW of hydropower and 3 MW of biomass) was 89.6% of new capacity, while natural gas provided just 10.2%; the balance came from coal (18 MW), oil (17 MW), and waste heat (17 MW).
Solar + wind are 23.23% of US utility-scale generating capacity
Utility-scale solar’s share of total installed capacity (11.42%) is now almost equal to that of wind (11.81%). Taken together, they constitute 23.23% of the US’s total available installed utility-scale generating capacity.
Moreover, at least 25-30% of US solar capacity is in the form of small-scale (e.g., rooftop) systems that are not reflected in FERC’s data. Including that additional solar capacity would bring the share provided by solar + wind to more than a quarter of the US total.
With the inclusion of hydropower (7.61%), biomass (1.07%), and geothermal (0.31%), renewables currently claim a 32.22% share of total US utility-scale generating capacity. If small-scale solar capacity is included, renewables are now more than one-third of total US generating capacity.
Solar still on track to become No. 2 source of US generating capacity
FERC reports that net “high probability” additions of solar between August 2025 and July 2028 total 92,631 MW – an amount more than four times the forecast net “high probability” additions for wind (22,528 MW), the second fastest-growing resource.
FERC also foresees net growth for hydropower (579 MW) and geothermal (92 MW) but a decrease of 131 MW in biomass capacity.
Taken together, the net new “high probability” capacity additions by all renewable energy sources over the next three years – the bulk of the Trump Administration’s remaining time in office – would total 115,120 MW.
There are now 35 MW of new nuclear capacity in FERC’s three-year forecast, while coal and oil are projected to contract by 25,017 MW and 1,576 MW, respectively. Natural gas capacity would expand by just 8,276 MW.
Should FERC’s three-year forecast materialize, by mid-summer 2028, utility-scale solar would account for more than 17% of installed U.S. generating capacity – more than any other source besides natural gas (40%). Further, the capacity of the mix of all utility-scale renewable energy sources would exceed 38%. Inclusion of small-scale solar systems would push renewables ahead of natural gas.
“With one month of Trump’s ‘One Big Beautiful Bill’ now under our belts, renewables continue to dominate capacity additions,” noted the SUN DAY Campaign’s executive director, Ken Bossong. “And solar seems poised to hold its lead in the months and years to come.”
The 30% federal solar tax credit is ending this year. If you’ve ever considered going solar, now’s the time to act. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them.
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