London Daily

Focus on the big picture.
Sunday, Sep 13, 2026

First winter cold snap tests French power grid

First winter cold snap tests French power grid

Temperatures hovering near zero in coming days will test the resilience of France's power network, even as President Emmanuel Macron urged the French not to panic amid warnings of possible blackouts.
Temperatures hovering near zero in coming days will test the resilience of France's power network, even as President Emmanuel Macron urged the French not to panic amid warnings of possible blackouts.

French utility EDF saw its electricity output drop to a 30-year low earlier in 2022 due to a record number of nuclear reactor outages arising from corrosion problems, and it is racing against time to ensure its fleet can run at full capacity for the depths of winter.

French utility EDF saw its electricity output drop to a 30-year low earlier in 2022 due to a record number of nuclear reactor outages, and it is racing against time to ensure its fleet can run at full capacity for the depths of winter.

France is more vulnerable to Europe's energy crisis, unleashed by the fallout from the war in Ukraine, than some other European nations due to low nuclear availability and demand there being particularly temperature-sensitive, said Jean-Paul Harreman, director of EnAppSys energy consultancy.

After an unusually mild November helped reduce electricity use in France, temperatures dropped on Monday and are set to linger near zero later this week and next.

On Monday, lower-than-forecast nuclear availability was offset by higher imports from all of France's neighbours and high production from gas-fired power plants.

RTE's EcoWatt alert app - which the government is urging people to download to be warned of peaks in demand or risk of cuts - remained green.

"It is not cold enough for that yet, but we do see France hitting its import limitations," Harreman said.

Refinitiv analyst Nathalie Gerl said that with forecasts showing colder temperatures next week, "the coming Monday Dec. 12th will be even tighter.

"Consumption is set to peak at 80 GW (versus 73 GW on Dec. 5), while wind power is expected to be below normal. Should the nuclear availability remain at 37-38 GW the supply gap risk will be much more acute than today," she said.

Government ministers have warned of possible power outages in case of a gap between supply and demand, which they said would last no longer than two hours and be flagged in advance.

Warnings abound, with telecoms operator Orange (ORAN.PA) saying emergency phone calls may not be possible in parts of France if there are prolonged power cuts, and France's Banking Federation (FBF) acknowledging cash machines would be affected.

"First of all, let us be clear: no panic!" Macron told TF1 television at the weekend.

He added: "It is legitimate for the government to prepare for the extreme cases which would mean cutting off electricity for a few hours per day if we did not have enough power."

Meanwhile, further delays on nuclear reactors were announced on Monday.

A pair of the 900 megawatt (MW) Dampierre reactors in central France had their outages extended, with the second reactor in the park being pushed back 10 days to Dec. 19 and the third reactor being extended six days to Dec. 12.
Newsletter

Related Articles

0:00
0:00
Close
Chinese Crypto Entrepreneur Leon Li Identified as Seller of £190 Million London Mansion
Trades Union Congress Proposes Social Energy Tariff Funded by Higher Bank Surcharge
British Chambers of Commerce Calls for State Pension Triple Lock to Be Scrapped
Anthropic Says Claude Helped Disrupt Biological Weapons and Cyber Espionage Threats
UK Imposes Sanctions Over Israeli Settlements and West Bank Violence
UK Reimposes Sectoral Sanctions on Iran’s Aviation, Shipping and Energy Networks
UK Economy Grows 0.4% in July as AI and Programming Services Lift Activity
UK House of Commons Rejects Assisted Dying Bill by 286 Votes to 270
UK Reviews Nationwide Emergency Alert Tests After Systems Meet Reliability Targets
UK Seeks Faster Rail Links Across Northern Industrial Corridors
British Business Bank Allocates £150 Million for High-Growth Companies in Northern England
BBC Warns Staff Strikes Are Possible Amid Pay Dispute and £500 Million Savings Drive
UK Backs Short Extension of UN Sudan Sanctions Regime
Prime Minister Andy Burnham Defends Early Prison Release Reforms and Growth Strategy
Reform UK Faces Scrutiny Over Alleged Effort to Circumvent Foreign Donation Rules
UK Analysts Warn Tax Rises or Spending Cuts May Be Needed to Preserve Fiscal Headroom
Jaguar Land Rover Plans Up to 4,000 Job Cuts in £1.7 Billion Cost-Saving Drive
UK Chancellor Warns of Difficult October Budget as Borrowing Costs Rise
UK Declares Israeli Occupation of West Bank Unlawful and Expands Sanctions
UK House of Commons Rejects Assisted Dying Bill for England and Wales
English Councils to Gain Power to Introduce Tourist Taxes by 2028
Kemi Badenoch Reshuffles Conservative Shadow Cabinet
Firefighters Make Progress Containing Major Wildfires in South Wales
John Lewis Partnership Reports £124 Million Loss
Study Says UK AI Data Centres Will Create Only a Quarter of Forecast Jobs
UK Government Considers Higher Industrial Water Prices Amid Supply Pressures
Andy Burnham Holds First Call With Donald Trump as UK Prime Minister
NHS Records Busiest Summer on Record as Heatwaves Drive Hospital Admissions
Home Secretary Orders Police Crackdown on Far-Right Anti-Migrant Vigilantes
UK Supreme Court Rules Northern Ireland Religious Education Curriculum Breaches Human Rights Standards
Markets Price in Four Bank of England Rate Rises by Next Summer
House of Commons Prepares Free Vote on Assisted Dying Bill
UK Government Bans Trade With Israeli Settlements in Occupied Territories
UK Economy Grows 0.4% in July as Artificial Intelligence Investment Supports Expansion
Andy Burnham Becomes UK Prime Minister After Keir Starmer Resigns
John Lewis Partnership Loss Widens to £124 Million
UK Government to Put White Working-Class Social Mobility at Centre of Equality Policy
McLaren Plans £450 Million Technology Investment Creating 1,000 UK Jobs
UK Chancellor Faces Calls for Wealth Taxes and Public Ownership in Autumn Budget
English Mayors to Gain Powers to Impose Uncapped Overnight Tourist Taxes
JPMorgan’s Jamie Dimon Warns UK Government Against Bank Windfall Taxes
UK Air Traffic Control Outage Cancels More Than 2,000 Flights
UK Imposes Trade Ban on Israeli Settlements in the West Bank
UK Borrowing Costs Surge as Middle East Tensions Push Long-Term Gilt Yields to Highest Since 1998
Buckingham Palace Says Prince Harry and Meghan Will Not Resume Official Royal Duties
UK Treasury Faces Calls to Scrap £100,000 Childcare Support Threshold
Trades Union Congress Urges Labour Government to Rewrite Migration Policy
Riot Police Deployed After Anti-Migrant Protests Turn Violent in Portsmouth
UK Considers Replacing Some Disability Cash Payments With Direct Services
JPMorgan’s Jamie Dimon Warns UK Chancellor Against Higher Banking Taxes
×