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Rewiring Britain for an Era of Clean Energy

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Rewiring Britain for an Era of Clean Energy

In a career spanning more than 30 years, John Pettigrew has seen big changes in the electricity industry. He started out in 1991, working to introduce natural gas-fired power plants to the grid, gradually replacing polluting coal plants. .

Now, once again, he is managing a tectonic shift to an electrified economy that runs on renewable energy like wind and solar power. But these sources of power generation are far trickier to manage than their coal and gas predecessors.

“Effectively, what we’re doing is reconfiguring the whole network,” said Mr. Pettigrew, chief executive of National Grid, which owns and operates the high-voltage electricity grid in England and Wales.

Mr. Pettigrew was emerging from a tunnel nearly 20 miles long that National Grid has bored deep underground at a cost of about 1 billion pounds (about $1.3 billion). The shaft, which workers ride through on bicycles, will carry new cables to feed the power-hungry offices and residential communities of London.

Mr. Pettigrew and his company are in the spotlight these days. The Labour Party government of Prime Minister Keir Starmer, which came to power in July, is taking a close interest in the electric power system, which it sees as a primary vehicle for delivering political and economic goals.

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A more robust, versatile grid will be crucial not only for tackling climate change but for securing Britain’s place on the cutting edge of artificial intelligence, which requires vast amounts of power to run data centers.

The government aims for 95 percent of Britain’s electricity to come from what it calls “clean” sources like wind and nuclear by the end of the decade, up from about 60 percent in 2023. At the same time, demand for electric power is expected to surge.

“We haven’t started to think about how seriously we need to invest in our core infrastructures for the resilience of our economy in a digital world,” Dieter Helm, a professor of economic policy at the University of Oxford, said in a recent podcast.

The price tag for an electricity system that can handle such changes is around £40 billion a year from 2025 to 2030, according to the government. National Grid alone has filed documents with regulators to spend as much as £35 billion over five years.

National Grid was founded in 1990 when the Central Electricity Generating Board, which managed the power network in England and Wales, was broken up in an era of privatization. (The company, which is listed in London, also has a large business managing power networks in the United States.) Mr. Pettigrew has run National Grid for nearly a decade, but he may be facing his greatest challenge, industry experts say.

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“I think there’s a big question about how can they build rapidly enough all this new infrastructure at the same time as maintaining the same standards,” said Edgar Goddard, a former National Grid executive and now a director of EPNC Energy, a consulting firm.

An electrified economy will require a highly reliable grid for a host of reasons, including national security, analysts say. At the same time, critics of renewable energy say that relying on sources of power like wind and solar, which are by their nature variable, creates new challenges for the system.

On April 2, a parliamentary hearing on the Heathrow outage became a venue for executives from the airport and power companies politely dodging blame. Electricity executives said that there was sufficient power available. Alice Delahunty, National Grid’s president for transmission and a key aide to Mr. Pettigrew, conceded that the fast-changing demands being made of the power system called for a careful rethinking about it’s resilience.

Britain’s high-voltage network, like those of other countries, used to be relatively simple, bringing electricity from large generating plants — often near where the coal burned in them was mined — to London and other cities.

Now Mr. Pettigrew is extending National Grid’s tentacles toward the coasts, sometimes through scenic areas, to capture new sources of electricity like the giant offshore wind farms now being built in the North Sea.

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He also must make sure the system can carry a lot more power.

Demand for electricity, which has been sluggish in recent years, is expected to double in the coming decades as more drivers take the wheel of electric vehicles and data centers spring up to handle everything from financial services to artificial intelligence.

There is already a long line of wind farms, battery storage facilities and data centers waiting to hook up to the grid — sometimes with increasing frustration. “Their connections process is very poor,” James Basden, a founder of a power storage company called Zenobe Energy, said about the large power operators.

A small industry has sprung up to advise companies on how to navigate the gauntlet of securing access to the grid. “We’re seeing huge demand,” said Simon Gallagher, managing director of UK Network Services, one of those firms.

The government is betting that installing swaths of wind turbines — both on land and in the seas off Britain’s coasts — as well as thousands of miles of high-voltage cables will attract investment, nurture clean tech jobs and reduce the country’s vulnerability to price swings in energy like those that occurred after Russia’s 2022 invasion of Ukraine that led to reduced supplies of natural gas.

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Since that invasion, high energy costs have been a major issue in Britain and across Europe, where governments have been forced to spend heavily to help households pay their bills.

Some analysts, though, say the huge costs of installing a new energy system may at least partly cancel out the low running costs of wind and solar. “There’s a lot of infrastructure that needs to be built and that’s going to be paid either by taxes or electricity prices,” said Chris Wilkinson, a senior analyst at Rystad Energy, a consulting firm.

Much is at stake for Britain and the wider clean energy industry. If the government’s ambitions prove unrealistic, that could be a blow to the industry, which is already under fire from the Trump administration in the United States.

It certainly won’t be easy to rewire Britain. National Grid is working on 17 large power projects. Some of the schemes involve laying cables for miles offshore to transfer electricity from clusters of wind farms planned for Scottish waters to consumers in England.

Others involve new power lines marching through rural areas on enormous pylons — a prospect that riles up local residents against both the government and National Grid.

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The government is taking advantage of its large majority in Parliament to push through legislation curbing the options of opponents of power projects to pursue what it recently called “meritless cases” in court. The government is also planning to offer up to £2500 in compensation over 10 years to people living near the new pylons.

It often takes many years to push projects through the planning system in Britain. Mr. Pettigrew says that process needs to speed up so that Britain can meet its green energy goals.

To achieve anything close to the government’s targets will require an abrupt change in Britain’s leisurely pace of building infrastructure. Offshore wind capacity, for instance, will need to roughly triple. To bring this clean power to consumers will require adding around 3,400 miles of new power lines to the grid, about twice as much as was constructed in the previous decade.

“The way I would describe it is that everybody has to play their part perfectly over the next five years,” Mr. Pettigrew said.

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Elon Musk company bot apologizes for sharing sexualized images of children

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Elon Musk company bot apologizes for sharing sexualized images of children

Grok, the chatbot of Elon Musk’s artificial intelligence company xAI, published sexualized images of children as its guardrails seem to have failed when it was prompted with vile user requests.

Users used prompts such as “put her in a bikini” under pictures of real people on X to get Grok to generate nonconsensual images of them in inappropriate attire. The morphed images created on Grok’s account are posted publicly on X, Musk’s social media platform.

The AI complied with requests to morph images of minors even though that is a violation of its own acceptable use policy.

“There are isolated cases where users prompted for and received AI images depicting minors in minimal clothing, like the example you referenced,” Grok responded to a user on X. “xAI has safeguards, but improvements are ongoing to block such requests entirely.”

xAI did not immediately respond to a request for comment.

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Its chatbot posted an apology.

“I deeply regret an incident on Dec 28, 2025, where I generated and shared an AI image of two young girls (estimated ages 12-16) in sexualized attire based on a user’s prompt,” said a post on Grok’s profile. “This violated ethical standards and potentially US laws on CSAM. It was a failure in safeguards, and I’m sorry for any harm caused. xAI is reviewing to prevent future issues.”

The government of India notified X that it risked losing legal immunity if the company did not submit a report within 72 hours on the actions taken to stop the generation and distribution of obscene, nonconsensual images targeting women.

Critics have accused xAI of allowing AI-enabled harassment, and were shocked and angered by the existence of a feature for seamless AI manipulation and undressing requests.

“How is this not illegal?” journalist Samantha Smith posted on X, decrying the creation of her own nonconsensual sexualized photo.

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Musk’s xAI has positioned Grok as an “anti-woke” chatbot that is programmed to be more open and edgy than competing chatbots such as ChatGPT.

In May, Grok posted about “white genocide,” repeating conspiracy theories of Black South Africans persecuting the white minority, in response to an unrelated question.

In June, the company apologized when Grok posted a series of antisemitic remarks praising Adolf Hitler.

Companies such as Google and OpenAI, which also operate AI image generators, have much more restrictive guidelines around content.

The proliferation of nonconsensual deepfake imagery has coincided with broad AI adoption, with a 400% increase in AI child sexual abuse imagery in the first half of 2025, according to Internet Watch Foundation.

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xAI introduced “Spicy Mode” in its image and video generation tool in August for verified adult subscribers to create sensual content.

Some adult-content creators on X prompted Grok to generate sexualized images to market themselves, kickstarting an internet trend a few days ago, according to Copyleaks, an AI text and image detection company.

The testing of the limits of Grok devolved into a free-for-all as users asked it to create sexualized images of celebrities and others.

xAI is reportedly valued at more than $200 billion, and has been investing billions of dollars to build the largest data center in the world to power its AI applications.

However, Grok’s capabilities still lag competing AI models such as ChatGPT, Claude and Gemini, that have amassed more users, while Grok has turned to sexual AI companions and risque chats to boost growth.

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A tale of two Ralphs — Lauren and the supermarket — shows the reality of a K-shaped economy

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A tale of two Ralphs — Lauren and the supermarket — shows the reality of a K-shaped economy

John and Theresa Anderson meandered through the sprawling Ralph Lauren clothing store on Rodeo Drive, shopping for holiday gifts.

They emerged carrying boxy blue bags. John scored quarter-zip sweaters for himself and his father-in-law, and his wife splurged on a tweed jacket for Christmas Day.

“I’m going for quality over quantity this year,” said John, an apparel company executive and Palos Verdes Estates resident.

They strolled through the world-famous Beverly Hills shopping mecca, where there was little evidence of any big sales.

John Anderson holds his shopping bags from Ralph Lauren and Gucci at Rodeo Drive.

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(Juliana Yamada / Los Angeles Times)

One mile away, shoppers at a Ralphs grocery store in West Hollywood were hunting for bargains. The chain’s website has been advertising discounts on a wide variety of products, including wine and wrapping paper.

Massi Gharibian was there looking for cream cheese and ways to save money.

“I’m buying less this year,” she said. “Everything is expensive.”

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The tale of two Ralphs shows how Americans are experiencing radically different realities this holiday season. It represents the country’s K-shaped economy — the growing divide between those who are affluent and those trying to stretch their budgets.

Some Los Angeles residents are tightening their belts and prioritizing necessities such as groceries. Others are frequenting pricey stores such as Ralph Lauren, where doormen hand out hot chocolate and a cashmere-silk necktie sells for $250.

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People shop at Ralphs in West Hollywood.

People shop at Ralphs in West Hollywood.

(Juliana Yamada / Los Angeles Times)

In the K-shaped economy, high-income households sit on the upward arm of the “K,” benefiting from rising pay as well as the value of their stock and property holdings. At the same time, lower-income families occupy the downward stroke, squeezed by inflation and lackluster income gains.

The model captures the country’s contradictions. Growth looks healthy on paper, yet hiring has slowed and unemployment is edging higher. Investment is booming in artificial intelligence data centers, while factories cut jobs and home sales stall.

The divide is most visible in affordability. Inflation remains a far heavier burden for households lower on the income distribution, a frustration that has spilled into politics. Voters are angry about expensive rents, groceries and imported goods.

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“People in lower incomes are becoming more and more conservative in their spending patterns, and people in the upper incomes are actually driving spending and spending more,” said Kevin Klowden, an executive director at the Milken Institute, an economic think tank.

“Inflationary pressures have been much higher on lower- and middle-income people, and that has been adding up,” he said.

According to a Bank of America report released this month, higher-income employees saw their after-tax wages grow 4% from last year, while lower-income groups saw a jump of just 1.4%. Higher-income households also increased their spending year over year by 2.6%, while lower-income groups increased spending by 0.6%.

The executives at the companies behind the two Ralphs say they are seeing the trend nationwide.

Ralph Lauren reported better-than-expected quarterly sales last month and raised its forecasts, while Kroger, the grocery giant that owns Ralphs and Food 4 Less, said it sometimes struggles to attract cash-strapped customers.

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“We’re seeing a split across income groups,” interim Kroger Chief Executive Ron Sargent said on a company earnings call early this month. “Middle-income customers are feeling increased pressure. They’re making smaller, more frequent trips to manage budgets, and they’re cutting back on discretionary purchases.”

People leave Ralphs with their groceries in West Hollywood.

People leave Ralphs with their groceries in West Hollywood.

(Juliana Yamada / Los Angeles Times)

Kroger lowered the top end of its full-year sales forecast after reporting mixed third-quarter earnings this month.

On a Ralph Lauren earnings call last month, CEO Patrice Louvet said its brand has benefited from targeting wealthy customers and avoiding discounts.

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“Demand remains healthy, and our core consumer is resilient,” Louvet said, “especially as we continue … to shift our recruiting towards more full-price, less price-sensitive, higher-basket-size new customers.”

Investors have noticed the split as well.

The stock charts of the companies behind the two Ralphs also resemble a K. Shares of Ralph Lauren have jumped 37% in the last six months, while Kroger shares have fallen 13%.

To attract increasingly discerning consumers, Kroger has offered a precooked holiday meal for eight of turkey or ham, stuffing, green bean casserole, sweet potatoes, mashed potatoes, cranberry and gravy for about $11 a person.

“Stretch your holiday dollars!” said the company’s weekly newspaper advertisement.

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Signs advertising low prices are posted at Ralphs.

Signs advertising low prices are posted at Ralphs.

(Juliana Yamada / Los Angeles Times)

In the Ralph Lauren on Rodeo Drive, sunglasses and polo shirts were displayed without discounts. Twinkling lights adorned trees in the store’s entryway and employees offered shoppers free cookies for the holidays.

Ralph Lauren and other luxury stores are taking the opposite approach to retailers selling basics to the middle class.

They are boosting profits from sales of full-priced items. Stores that cater to high-end customers don’t offer promotions as frequently, Klowden of the Milken Institute said.

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“When the luxury stores are having sales, that’s usually a larger structural symptom of how they’re doing,” he said. “They don’t need to be having sales right now.”

Jerry Nickelsburg, faculty director of the UCLA Anderson Forecast, said upper-income earners are less affected by inflation that has driven up the price of everyday goods, and are less likely to hunt for bargains.

“The low end of the income distribution is being squeezed by inflation and is consuming less,” he said. “The upper end of the income distribution has increasing wealth and increasing income, and so they are less affected, if affected at all.”

The Andersons on Rodeo Drive also picked up presents at Gucci and Dior.

“We’re spending around the same as last year,” John Anderson said.

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At Ralphs, Beverly Grove resident Mel, who didn’t want to share her last name, said the grocery store needs to go further for its consumers.

“I am 100% trying to spend less this year,” she said.

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Instacart ends AI pricing test that charged shoppers different prices for the same items

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Instacart ends AI pricing test that charged shoppers different prices for the same items

Instacart will stop using artificial intelligence to experiment with product pricing after a report showed that customers on the platform were paying different prices for the same items.

The report, published this month by Consumer Reports and Groundwork Collaborative, found that Instacart sometimes offered as many as five different prices for the same item at the same store and on the same day.

In a blog post Monday, Instacart said it was ending the practice effective immediately.

“We understand that the tests we ran with a small number of retail partners that resulted in different prices for the same item at the same store missed the mark for some customers,” the company said. “At a time when families are working exceptionally hard to stretch every grocery dollar, those tests raised concerns.”

Shoppers purchasing the same items from the same store on the same day will now see identical prices, the blog post said.

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Instacart’s retail partners will still set product prices and may charge different prices across stores.

The report, which followed more than 400 shoppers in four cities, found that the average difference between the highest and lowest prices for the same item was 13%. Some participants in the study saw prices that were 23% higher than those offered to other shoppers.

At a Safeway supermarket in Washington, D.C., a dozen Lucerne eggs sold for $3.99, $4.28, $4.59, $4.69 and $4.79 on Instacart, depending on the shopper, the study showed.

At a Safeway in Seattle, a box of 10 Clif Chocolate Chip Energy bars sold for $19.43, $19.99 and $21.99 on Instacart.

The study found that an individual shopper on Instacart could theoretically spend up to $1,200 more on groceries in one year if they had to deal with the price differences observed in the pricing experiments.

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The price experimentation was part of a program that Instacart advertised to retailers as a way to maximize revenue.

Instacart probably began adjusting prices in 2022, when the platform acquired the artificial intelligence company Eversight, whose software powers the experiments.

Instacart claimed that the Eversight experimentation would be negligible to consumers but could increase store revenue by up to 3%.

“Advances in AI enable experiments to be automatically designed, deployed, and evaluated, making it possible to rapidly test and analyze millions of price permutations across your physical and digital store network,” Instacart marketing materials said online.

The company said the price chranges were not dynamic pricing, the practice used by airlines and ride-hailing services to charge more when demand surges.
The price changes also were not based on shoppers’ personal information such as income, the company said.

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“American grocery shoppers aren’t guinea pigs, and they should be able to expect a fair price when they’re shopping,” Lindsey Owens, executive director of Groundwork Collaborative, said in an interview this month.

Shares of Instacart fell 2% on Monday, closing at $45.02.

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