Some households with smart meters could be eligible for discounts if they cut their use of electricity between 5 and 6pm today.
The National Grid ESO (electricity system operator) is, for the first time, activating the “demand flexibility service (DFS)” – which allows it to access additional flexibility when national demand is at its highest during peak winter days.
The scheme entitles households with up-to-date smart meters, who are signed up to the scheme via their supplier, to discounts if they cut their use of electricity by turning off energy intensive appliances during set times.
National Grid ESO added that its announcement should not be interpreted as a sign that electricity supplies are at risk and said “people should not be worried”.
“These are precautionary measures to maintain the buffer of spare capacity we need,” National Grid said in a tweet.
A spokesperson added: “Our forecasts show electricity supply margins are expected to be tighter than normal on Monday evening.
The cold weather means more people are heating their homes which increases demand for energy, but a lack of wind has reduced the amount of renewable energy available.
Three UK coal plants – two at Drax’s site in North Yorkshire and one at West Burton in Nottinghamshire – have been ordered to begin warming up in case they are needed for the country’s energy supply as the cold snap bites.
A man was later seen wielding a sword and attacking members of the public on a road near Hainault tube station.
The suspect was arrested 22 minutes later. Doorbell footage showed the moment officers cornered the hooded man, who was still holding his weapon, in a driveway.
Police confirmed on Tuesday that one person – a teenage boy – had died and four others were injured during the incident.
Among those injured were two police officers who suffered wounds that required surgery, but were not life-threatening, and two members of the public.
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Video of part of the incident showed how officers shouted at the suspect, saying “Don’t move, don’t f****** move” after he was brought to the ground by three separate Taser discharges before being arrested.
Other footage showed the suspect being chased by police as an officer is heard shouting “Lock your doors” as the sword-wielding man entered residential gardens.
In another clip, a police car arrives before the man verbally confronts the police and shouts “Is there anybody here who believes in God?” while standing next to a body.
Metropolitan Police Assistant Commissioner Louisa Rolfe said there had been speculation about whether police had been aware of the suspect before the incident.
She said that, despite urgent and extensive checks, police had “found no trace of a prior incident involving him so far, but we will of course continue to make those inquiries”.
A neighbour from a nearby road, who witnessed the incident, told PA news agency the suspect pulled a “samurai sword from the back of his trousers”.
James Fernando, 39, said the suspect had asked one of his neighbours to “take the telephone from him to tell whoever was on the phone his location”.
“Within two seconds she realised something wasn’t right, started running, and he pulled a samurai sword from the back of his trousers,” he said.
“She shouted to the other neighbour – a boy who was on his way to school. As he’s turned around, he’s struck him on the face.”
Mr Fernando said the suspect then started “running around with the sword in his hand looking for victims”.
Another witness, who asked not to be named, said: “He was wielding his sword trying to attack the police but then they sprayed him and he ran away.
“We were very scared and trying to hide and not show ourselves through the window, because he was standing right next to our house and he could have seen us if he looked up.
The UK has sent the first failed asylum seeker to Rwanda under a voluntary scheme.
The scheme is for those who have gone through the asylum process and had permission rejected, rather than for migrants who have illegally entered Britain by crossing the Channel on small boats.
The migrant was sent on a commercial flight and handed a fee from the British taxpayer to help relocate under the terms of a deal with Rwanda.
According to The Sun, the man of African origin claimed asylum in the UK but was rejected at the end of last year. He then accepted the offer to go to Rwanda.
He left the UK on Monday.
This was not done using the powers set out in the Safety of Rwanda Act, but rather a parallel scheme that allows someone to choose to make the trip if their attempts to claim asylum in the UK fails.
And upon arrival in Kigali, the person is able to claim around £3,000 in UK taxpayer money as help.
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1:56
Migrants ‘will be found and removed’
The development was criticised by both the Labour Party and Reform UK director Nigel Farage.
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Yvette Cooper, Labour’s shadow home secretary, said: “The Tories are so desperate to get any flight off to Rwanda before the local elections that they have now just paid someone to go.
“British taxpayers aren’t just forking out £3,000 for a volunteer to board a plane, they are also paying Rwanda to provide him with free board and lodgings for the next five years. This extortionate pre-election gimmick is likely to be costing on average £2m per person.
“Former Tory Home Office ministers warned that the government’s plan was just to get token flights off before a General Election. Now we know what they mean.”
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0:50
Rwanda plan: ‘What does success mean?’
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Less than a week after she survived a migrant boat disaster in which five people died, Heivin is standing in a car park next to a shabby hotel near London, smiling and joyous.
After a string of failed attempts to reach England, her dream has finally been fulfilled.
“It was really hard and dangerous for me, but I finally made it here, thanks to God,” she said.
“I am very happy to be here because I think it is a safe country and it is very suitable for me. But part of me is still in shock that the journey is finally over.”
She is a slight young woman, just 18 years old but blessed with a confidence that allowed her to persevere when others might have given up.
She left Kurdistan around a year ago, crossing Europe to France, and living in camps, woodland and in underpasses along the way.
“It was very hard,” she says.
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“Especially when you’re on your own, and a young woman. It can be very dangerous.”
Kurdistan is a region that straddles Turkey, Syria, Iran and Iraq, and whose people have historically faced ethnic and political persecution from the governments of those countries.
Heivin tried 30 times to reach England from the coast of northern France, with her penultimate attempt seeing her take a place on a boat that was wildly overcrowded after it was violently hijacked by a rival group of migrants.
In the ensuing melee, five people died, including a young child.
It was shortly after that trauma that we met Heivin for the first time, as she was recovering from the ordeal of that boat. The memories still haunted her of seeing people crushed.
Even then, Heivin said she would be trying again and, in the early hours of Saturday morning, she made it. Her boat left a French beach in the early hours and chugged towards Britain.
The people smugglers who arranged the crossing, she says, were “good with us”.
“We only had to wait for three to four hours, then we went down the beach and boarded the dinghy.”
But the boat, as so often with these crossings, was ill-equipped and struggled in the water before being intercepted by a French coastguard vessel, which offered assistance.
Of nearly 60 people on board, 33 were taken off, but the others, including Heivin, remained at sea, determined to get to Britain.
“This time I went, but I always had the feeling that I would not make it and have to return like the other times.
“It was also extremely cold that night and my clothes were soaking wet. I kept saying to myself “I won’t make it”, but thank God, I did make it.”
The decisive point came when the dinghy entered British waters and, before long, the passengers on board were collected by a Border Force vessel and taken to the mainland.
“How did you feel when you saw the British boat,” I asked.
Heivin’s face breaks into a broad smile and she says “so happy” with a shake of her head that is loaded with emotion.
“I felt overjoyed. I didn’t expect that we would make it to Britain. I thought we would just end up back in France again, like the other times. When I saw the British boat, I was extremely happy – I just can’t explain it. I’m so happy.”