London Daily

Focus on the big picture.
Monday, Sep 15, 2025

Risk of three-hour daily blackouts this winter, says UK’s National Grid

Risk of three-hour daily blackouts this winter, says UK’s National Grid

Britain faces blackouts for up to three hours a day this winter if it is unable to import enough energy. Households could earn more than £10 a day by reducing energy use if supplies run short
National Grid has warned that households and businesses could be cut off for periods of time if electricity supplies run short.

The electricity would be cut off in some areas of the country to ensure power does not go down more widely.

Consumers will also be relied on to accept payments to cut their energy usage at peak times if supplies are looking tight.

Households could be paid more than £10 a day for reducing their energy use. National Grid plans to use the scheme at least 12 times even without energy shortages to encourage people to take part.

Coal-fired power plants are also being kept online longer than planned to help cover imbalances.

It comes as cuts to Russian supplies of gas to Europe amid its war on Ukraine have wreaked havoc on gas and electricity markets.

Supplies of electricity from France are also strained due to outages on its nuclear fleet.

National Grid describes the prospect of insufficient gas supplies as “unlikely” but says the winter is likely to be “challenging” and it needs to be prepared.

Fintan Slye, executive director of National Grid’s electricity system operator, which is in charge of balancing Britain’s electricity supplies, said he was “cautiously confident” there would be adequate supplies this winter.

But he added: “As an expert and responsible operator of Great Britain’s electricity system it is incumbent on us to also factor in external factors and risks beyond our control like the unprecedented turmoil and volatility in energy markets in Europe and beyond.”

National Grid produces annual outlooks of electricity and gas supplies ahead of winter to help industry and consumers prepare.

In the documents published today, the electricity system operator says its “base case” is that Britain will have enough electricity to meet demand including buffer supplies.

However, this assumes that Britain can import from the continent when it needs to.

It has also modelled scenarios in which it cannot import enough electricity from Europe, and in which it cannot buy enough gas.

This could happen for example due to gas shortages in Europe or continued outages on continental power plants.

In the first scenario, National Grid will turn to five coal-fired power plants, owned by EDF, Uniper and others, which have been asked to stay online beyond planned closure dates this September.

It will also use a new scheme, which will run from November to March, in which households and businesses can agree in advance to be paid to stop using electricity temporarily if needed.

In practice it means households being paid to put on their washing machines or charge their electric cars away from peak hours, or factories to shift hours.

National Grid expects to be able to secure about two gigawatts of reduced demand – enough to power about 600,000 homes. The scheme could involve hundreds of thousands of households as well as large businesses.

But if the scheme did not deliver the savings required on a cold day, it may need to “interrupt supply to some customers for limited periods of time”.

In the second scenario of insufficient supplies of both electricity and gas, National Grid has looked at what would happen if ten gas-fired power plants were unable to operate as a result.

“Should this scenario happen it may be necessary to initiate the planned, controlled and temporary rota load-shedding scheme,” it says.

“In the unlikely event that we were in this situation, it would mean that some customers would be without power for pre-defined periods during a day – generally this is assumed to be for three hour blocks.

“This would be necessary to ensure the overall security and integrity of the system across Great Britain.”

Load-shedding is frequently used in South Africa, where problems at state utility Eskom mean businesses and households routinely have the power switched off.

All areas are not cut off at the same time, but power cuts are shared out across the day.

In a separate outlook looking at gas supplies, National Grid highlights the importance of shipments of natural gas imported from around the world to balance supplies.

Ian Radley, director of gas system operations, said: “Great Britain benefits from access to a range of diverse and flexible sources of gas, supported by flexible infrastructure.”
Newsletter

Related Articles

0:00
0:00
Close
London Daily Podcast: London Massive Pro Democracy Rally, Musk Support, UK Economic Data and Premier League Results Mark Eventful Weekend
This Week in AI: Meta’s Superintelligence Push, xAI’s Ten Billion-Dollar Raise, Genesis AI’s Robotics Ambitions, Microsoft Restructuring, Amazon’s Million-Robot Milestone, and Google’s AlphaGenome Update
Le Pen Tightens the Pressure on Macron as France Edges Toward Political Breakdown
Musk calls for new UK government at huge pro-democracy rally in London, but Britons have been brainwashed to obey instead of fighting for their human rights
Elon Musk responds to post calling for the murder of Erika Kirk, widow of Charlie Kirk: 'Either we fight back or they will kill us'
Czech Republic signs €1.34 billion contract for Leopard 2A8 main battle tanks with delivery from 2028
USA: Office Depot Employees Refused to Print Poster in Memory of Charlie Kirk – and Were Fired
Proposed U.S. Bill Would Allow Civil Suits Against Judges Who Release Repeat Violent Offenders
Penske Media Sues Google Over “AI Overviews,” Claiming It Uses Journalism Without Consent and Destroys Traffic
Indian Student Engineers Propose “Project REBIRTH” to Protect Aircraft from Crashes Using AI, Airbags and Smart Materials
French Debt Downgrade Piles Pressure on Macron’s New Prime Minister
US and UK Near Tech, Nuclear and Whisky Deals Ahead of Trump Trip
One in Three Europeans Now Uses TikTok, According to the Chinese Tech Giant
Could AI Nursing Robots Help Healthcare Staffing Shortages?
NATO Deploys ‘Eastern Sentry’ After Russian Drones Violate Polish Airspace
Anesthesiologist Left Operation Mid-Surgery to Have Sex with Nurse
Tens of Thousands of Young Chinese Get Up Every Morning and Go to Work Where They Do Nothing
The New Life of Novak Djokovic
The German Owner of Politico Mathias Döpfner Eyes Further U.S. Media Expansion After Axel Springer Restructuring
Suspect Arrested: Utah Man in Custody for Charlie Kirk’s Fatal Shooting
In a politically motivated trial: Bolsonaro Sentenced to 27 Years for Plotting Coup After 2022 Defeat
German police raid AfD lawmaker’s offices in inquiry over Chinese payments
Turkish authorities seize leading broadcaster amid fraud and tax investigation
Volkswagen launches aggressive strategy to fend off Chinese challenge in Europe’s EV market
ChatGPT CEO signals policy to alert authorities over suicidal youth after teen’s death
The British legal mafia hit back: Banksy mural of judge beating protester is scrubbed from London court
Surpassing Musk: Larry Ellison becomes the richest man in the world
Embarrassment for Starmer: He fired the ambassador photographed on Epstein’s 'pedophile island'
Manhunt after 'skilled sniper' shot Charlie Kirk. Footage: Suspect running on rooftop during panic
Effective Protest Results: Nepal’s Prime Minister Resigns as Youth-Led Unrest Shakes the Nation
Qatari prime minister says Netanyahu ‘killed any hope’ for Israeli hostages
King Charles and Prince Harry Share First In-Person Moment in 19 Months
Starmer Establishes Economic ‘Budget Board’ to Centralise Policy and Rebuild Business Trust
France Erupts in Mass ‘Block Everything’ Protests on New PM’s First Day
Poland Shoots Down Russian Drones in Airspace Violation During Ukraine Attack
Brazilian police say ex-President Bolsonaro had planned to flee to Argentina seeking asylum
Trinidad Leader Applauds U.S. Naval Strike and Advocates Forceful Action Against Traffickers
Kim Jong Un Oversees Final Test of New High-Thrust Solid-Fuel Rocket Engine
Apple Introduces Ultra-Thin iPhone Air, Enhanced 17 Series and New Health-Focused Wearables
Macron Appoints Sébastien Lecornu as Prime Minister Amid Budget Crisis and Political Turmoil
Supreme Court temporarily allows Trump to pause billions in foreign aid
Charlie Sheen says his father, Martin Sheen, turned him in to the police: 'The greatest betrayal possible'
Vatican hosts first Catholic LGBTQ pilgrimage
Apple Unveils iPhone 17 Series, iPhone Air, Apple Watch 11 and More at 'Awe Dropping' Event
Pig Heads Left Outside Multiple Paris Mosques in Outrage-Inducing Acts
Nvidia’s ‘Wow’ Factor Is Fading. The AI chip giant used to beat Wall Street expectations for earnings by a substantial margin. That trajectory is coming down to earth.
France joins Eurozone’s ‘periphery’ as turmoil deepens, say investors
On the Anniversary of Queen Elizabeth’s Death: Prince Harry Returns to Britain
France Faces New Political Crisis, again, as Prime Minister Bayrou Pushed Out
Murdoch Family Finalises $3.3 Billion Succession Pact, Ensuring Eldest Son’s Leadership
×