How the climate fight is coming into your home
Something has changed dramatically in your home in a way you won’t have even noticed.
The electricity in your plug socket no longer comes from coal, the workhorse of the industrial revolution that powered our economy for decades but which is also the most polluting fossil fuel.
Now it is generated by cleaner gas, renewable and nuclear power.
That shift has helped the UK cut greenhouse gas emissions by 50% since 1990 – a world-leading feat – and you won’t have batted an eyelid.
That’s about to change.
The country’s climate advisers, the Climate Change Committee (CCC), say in new advice today that emissions of greenhouse gases need to fall 87% by 2040.
Emissions need to fall by 87% by 2040, during the period covered by the ‘seventh carbon budget’, published today by the CCC
One third of those emissions cuts will come from decisions made by households.
While the first stage of the country’s national climate action has “gone largely unnoticed”, the next phase will be “a lot more difficult”, said Adam Berman from Energy UK, which represents energy suppliers.
“It’s going to be technically more difficult, it is going to be much more visceral and tangible to people in their everyday lives. It affects how they get to work, what they use to heat their homes and even diet.”
Experts say if we get it right, it will make our lives better with cleaner air and better public transport.
It would also shave hundreds of pounds off annual household bills.
But it depends on what the government does next to help people.
The way we travel
The two “most impactful” things households can do are replacing their car with an electric one and a gas boiler with a heat pump (only when they pack up, and not before), the advice said.
By 2040, the share of electric cars on the road needs to jump from 2.8% in 2023 to 80% in order to meet net zero, according to the recommendations, which the government is not obliged to accept.
They are already cheaper to run than petrol or diesel cars, while the falling cost of batteries means EVs should finally cost the same upfront in the next three years.
The committee’s chief executive Emma Pinchbeck said: “Frankly, by the time a lot of people are going to be choosing a new car, the electric vehicle is just going to be the cheapest [option].”
The share of heat pumps must jump to 52%, while electric cars need to reach 80% by 2040, the CCC said
How we heat our homes
But while the switch to electric vehicles is powering ahead, the move to greener home heating has barely left the starting blocks.
Homes are currently the second highest-emitting sector in the UK economy, and much of that comes from the way we heat them.
The CCC today put to bed calls to keep gas boilers but run them on hydrogen, recommending there be “no role for hydrogen heating in residential buildings”.
Hydrogen is hard to produce in a green way, and so would be reserved for other sectors that have no other viable alternatives.
The government is yet to confirm this decision, which would dismay the gas networks and boiler manufacturers.
Instead, the advisers said people should eventually replace boilers with heat pumps, which run on electricity and work a bit like a fridge in reverse: grabbing and compressing warmth from the outside air and using it to heat your home.
Amid a political row over the costs of net zero, the analysis concluded these two switches could save households around £700 a year on heating bills and a further £700 on motoring costs.
Cutting down on meat and on excessive flying will also play an important, but smaller role they said.
The upfront investment will cost the equivalent of 0.2% of GDP, most of which would come from the private sector.
Overcoming the costs
But at the moment the benefits of these green switches are not spread fairly, and some people can’t access them at all.
The upfront costs of a heat pump – and home upgrades needed alongside – are “sizeable” and price out poorer households, even with current government subsidies, campaigners and the CCC said.
Zachary Leather, an economist at the Resolution Foundation thinktank, said: “While politicians fret and argue about the cost of net zero, today’s report shows that there are long-term benefits for consumers and the environment.”
But the government needs to “get serious” about helping lower-income households to adopt heat pumps and EVs so they can save money too, he said.
Meanwhile, it is still cheaper for someone with a driveway to charge their EV than someone who charges theirs on the street – and electricity prices overall should be made cheaper to help people reap the benefits.
Mr Berman from Energy UK said: “All through the energy system there are these small examples that tend to mean working class households find it more expensive to take up low carbon alternatives.”
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The energy transition is ‘not fair yet’
It also comes at a time of wavering support for climate action. While Labour was elected on a mandate to go faster on climate action, the Conservatives have retreated from green issues, and Reform UK wants to dismantle net zero altogether.
Mr Berman said a way to “resolve that question of public consent is to ensure we’re rolling out that infrastructure in a really, really fair and inclusive way. And we’re not there yet”.
The public are also confused about if, when and how to switch to these green technologies, and which government should tackle this with clearer guidance, the CCC said.
Energy Secretary Ed Miliband said: “This advice is independent of government policy, and we will now consider it and respond in due course.
“It is clear that the best route to making Britain energy secure, bringing down bills and creating jobs is by embracing the clean energy transition. This government’s clean energy superpower mission is about doing so in a way that grows our economy and makes working people better off.
“We owe it to current generations to seize the opportunities for energy security and lower bills, and we owe it to future generations to tackle the existential climate crisis.”
The world’s most valuable company, and first to be valued at $4trn (£2.9trn), beat market expectations in keenly anticipated financial results.
Microchip maker Nvidia recorded revenues of $46.7bn (£34.6bn) in just three months up to July, latest financial data from the company showed, slightly better than Wall Street observers had expected.
The company’s performance is seen as a bellwether for artificial intelligence (AI) demand, with investors paying close attention to see whether the hype is overblown or if significant investment will pay off.
Originally a creator of gaming graphics hardware, Nvidia’s chips help power AI capability – and the UK’s most powerful supercomputer.
Nvidia’s graphics processors underpin products such as ChatGPT from OpenAI and Gemini from Google.
Other tech giants – Microsoft, Meta and Amazon – make up Nvidia’s biggest customers and are paying large sums to embed AI into their products.
Why does it matter?
Nvidia has been central to the boom in AI development and the surge in tech stock valuations, which has seen stock markets reach record highs.
It represents about 8% of the value of the US S&P 500 stock market index of companies relied on to be stable and profitable.
Strong results will continue to fuel record highs in the market. Conversely, results that fail to live up to the hype could trigger a market tumble.
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Nvidia itself saw its share price rise more than 40% over the past year. Its value impacts anyone with cash in the US stock market, such as pension funds.
The S&P 500 rose 14% over the past year, and the tech-company-heavy NASDAQ gained 21%, largely thanks to Nvidia.
As such, its earnings can move markets as much as major economic or monetary policy announcements, like an interest rate decision.
Sir Keir Starmer with NVIDIA chief Huang at London Tech Week. Pic: AP
What next?
Revenue rises are forecast to continue to rise as Nvidia said it expected a rise to roughly $54bn (£40bn) in the next three months, more than the $53.14bn (£39.3bn) anticipated by analysts.
This excludes any potential shipments to China as export of Nvidia’s H20 chip, designed with the Biden administration’s export crackdown on advanced AI powering chips in mind, had been banned under US national security grounds.
But in recent weeks, Nvidia and another chipmaker, AMD, reached an unprecedented agreement to pay the Trump administration a 15% portion of China sales in return for export licences to send chips to China.
There were no H20 sales at all to China in the second quarter of the year, the period for which results were released on Wednesday evening.
Previously, 13% of Nvidia’s revenue came from China, with nearly 50% coming from the US.
Market reaction
Despite the expectation-beating results, Nvidia shares were down in after-hours trading, as the massive revenue rises previously booked by the company were not repeated in the latest quarter.
Compared to a year ago, revenues rose 56% and 6% compared to the three months up to April.
The absence of Chinese sales in forecasts appeared to disappoint.
A larger than expected hike in the energy price cap from October is largely down to higher costs being imposed by the government.
The typical sum households face paying for gas and electricity when using direct debit is to rise by 2% – or £2.93 per month – to £1,755, the energy watchdog Ofgem announced.
The current price cap is £1,720 a year. A 1% increase had been widely forecast.
The latest bill settlement, covering the final quarter of the year until the next price review takes effect from January, will affect around 20 million households.
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There are 14 million others, such as those on pre-payment meters, who will also see bills rise by a similar level.
Those on fixed deals, which are immune from price cap shifts until such time as the term ends, currently stands at 20 million.
Wholesale prices – volatile since Russia’s invasion of Ukraine back in February 2022 – have been the main driver of rising bills.
But they are making little contribution to the looming increase.
Ofgem explained that government measures, such as the expansion of the warm home discount announced in June, were mainly responsible.
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Bills must rise to pay for energy transition
The discount is set to add £15 to the average annual bill.
It will provide £150 in support to 2.7 million extra people this year, bringing the total number of beneficiaries to six million.
The balance is made up from money needed to upgrade the power network.
Tim Jarvis, director general of markets at Ofgem, said: “While there is still more to do, we are seeing signs of a healthier market. There are more people on fixed tariffs saving themselves money, switching is rising as options for consumers increase, and we’ve seen increases in customer satisfaction, alongside a reduction in complaints.
“While today’s change is below inflation, we know customers might not be feeling it in their pockets. There are things you can do though – consider a fixed tariff as this could save more than £200 against the new cap. Paying by direct debit or smart pay as you go could also save you money.
“In the longer term, we will continue to see fluctuations in our energy prices until we are insulated from volatile international gas markets. That’s why we continue to work with government and the sector to diversify our energy mix to reduce the reliance on markets we do not control.”
The looming price cap lift will leave bills around the same sort of level they were in October last year but it will take hold at a time when overall inflation is higher.
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Food price increases, also partly blamed on government measures such as the national insurance contributions hike imposed on employers, have led the main consumer prices index to a current level of 3.8%.
It is predicted to rise to at least 4% in the coming months, further squeezing household budgets.
Ministers argue that efforts to make the UK less reliant on natural gas, through investment in renewable power sources, will help bring down bills in future.
Energy minister Michael Shanks said: “We know that any price rise is a concern for families. Wholesale gas prices remain 75% above their levels before Russia invaded Ukraine. That is the fossil fuel penalty being paid by families, businesses and our economy.
“That is why the only answer for Britain is this government’s mission to get us off the rollercoaster of fossil fuel prices and onto clean, homegrown power we control, to bring down bills for good.
“At the same time, we are determined to take urgent action to support vulnerable families this winter. That includes expanding the £150 Warm Home Discount to 2.7 million more households and stepping up our overhaul of the energy system to increase protections for customers.”
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