London Daily

Focus on the big picture.
Thursday, Sep 18, 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
US Tech Giants Pledge Billions to UK AI Infrastructure Following Starmer's Call
Saudi Arabia cracks down on music ‘lounges’ after conservative backlash
DeepMind and OpenAI Achieve Gold at ‘Coding Olympics’ in AI Milestone
SEC Allows Public Companies to Block Investors from Class-Action Lawsuits
Saudi Arabia Signs ‘Strategic Mutual Defence’ Pact with Pakistan, Marking First Arab State to Gain Indirect Access to Nuclear Strike Capabilities in the Region
Federal Reserve Cuts Rates by Quarter Point and Signals More to Come
Effective and Impressive Generation Z Protest: Images from the Riots in Nepal
European manufacturers against ban on polluting cars: "The industry may collapse"
Sam Altman sells the 'Wedding Estate' in Hawaii for 49 million dollars
Trump: Cancel quarterly company reports and settle for reporting once every six months
Turkish car manufacturer Togg Enters German Market with 5-Star Electric Sedan and SUV to Challenge European EV Brands
US Launches New Pilot Program to Accelerate eVTOL Air Taxi Deployment
Christian Brueckner Released from German Prison after Serving Unrelated Sentence
World’s Longest Direct Flight China Eastern to Launch 29-Hour Shanghai–Buenos Aires Direct Flight via Auckland in December
New OpenAI Study Finds Majority of ChatGPT Use Is Personal, Not Professional
Hong Kong Industry Group Calls for HK$20 Billion Support Fund to Ease Property Market Stress
Joe Biden’s Post-Presidency Speaking Fees Face Weak Demand amid Corporate Reluctance
Charlie Kirk's murder will break the left's hateful cancel tactics
Kash Patel erupts at ‘buffoon’ Sen. Adam Schiff over Russiagate: ‘You are the biggest fraud’
Homeland Security says Emmy speech ‘fanning the flames of hatred’ after Einbinder’s ‘F— ICE’ remark
Charlie Kirk’s Alleged Assassin Tyler Robinson Faces Death Penalty as Charges Formally Announced
Actor, director, environmentalist Robert Redford dies at 89
The conservative right spreads westward: a huge achievement for 'Alternative for Germany' in local elections
JD Vance Says There Is “No Unity” with Those Who Celebrate Charlie Kirk’s Killing, and he is right!
Trump sues the 'New York Times' for an astronomical sum of 15 billion dollars
Florida Hospital Welcomes Its Largest-Ever Baby: Annan, Nearly Fourteen Pounds at Birth
U.S. and Britain Poised to Finalize Over $10 Billion in High-Tech, Nuclear and Defense Deals During Trump State Visit
China Finds Nvidia Violated Antitrust Laws in Mellanox Deal, Deepens Trade Tensions with US
US Air Force Begins Modifications on Qatar-Donated Jet Amid Plans to Use It as Air Force One
Pope Leo Warns of Societal Crisis Over Mega-CEO Pay, Citing Tesla’s Proposed Trillion-Dollar Package
Poland Green-Lights NATO Deployment in Response to Major Russian Drone Incursion
Elon Musk Retakes Lead as World’s Richest After Brief Ellison Surge
U.S. and China Agree on Framework to Shift TikTok to American Ownership
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
×