Britain is at the lowest risk of a winter power blackout than at any point in the last six years, the national electricity grid operator has said.

Not since the pre-pandemic winter of 2019-2020 has the risk been so low, the National Energy System Operator (NESO) said.

It’s thanks to increased battery capacity to store and deploy excess power from windfarms, and a new subsea electricity cable to Ireland that came on stream in April.

The margins between expected demand and supply are now roughly three gas power stations greater than last year, the NESO said.

It also comes as Britain and the world reached new records for green power.

For the first time, renewable energy produced more of the world’s electricity than coal in the first half of 2025, while in Britain, a record 54.5% of power came from renewables like solar and wind energy in the three months to June.

More renewable power can mean lower bills, as there’s less reliance on volatile oil and gas markets, which have remained elevated after the invasion of Ukraine and the Western attempt to wean off Russian fossil fuels.

“Renewables are lowering wholesale electricity prices by up to a quarter”, said Jess Ralston, an energy analyst at the Energy and Climate Intelligence Unit (ECIU) thinktank.

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In a recent winter, British coal plants were fired up to meet capacity constraints when cold weather increased demand, but still weather conditions meant lower supply, as the wind didn’t blow.

Those plants have since been decommissioned.

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There will, however, be some “tight” days, the NESO said.

On such occasions, the NESO will tell electricity suppliers to up their output.

The times Britain is most likely to experience supply constraints are in early December or mid-January, the grid operator said.

The NESO had been owned by National Grid, a public company listed on the New York Stock Exchange, but was acquired by the government for £630m in 2023.

Sir Jim Ratcliffe, the co-owner of Manchester United and head of Ineos, one of Europe’s largest chemical producers, has staged an “11th-hour intervention” in an effort to “save” the chemical industry.

Sir Jim has called on European legislators to reduce price pressures on chemical businesses, or there “won’t be a chemical industry left to save”.

“There’s, in my view, not a great deal of time left before we see a catastrophic decline in the chemical industry in Europe”, he said.

The “biggest problem” facing businesses is gas and electricity costs, with the EU needing to be “more reactive” on tariffs to protect competition, Sir Jim added.

Prices should be eased on chemical companies by reducing taxes, regulatory burdens, and bringing back free polluting permits, the Ineos chairman and chief executive said.

It comes as his company, Europe’s biggest producer of some chemicals and one of the world’s largest chemical firms, announced the loss of 60 jobs at its acetyls factory in Hull earlier this week.

Cheap imports from China were said to be behind the closure, as international competition facing lower costs has hit the sector.

What could happen?

Now is a “moment of reckoning” for Europe’s chemicals industry, which is “at a tipping point and can only be saved through urgent action”, Sir Jim said.

European chemical sector output declined significantly due to reduced price competitiveness from high energy and regulatory costs, according to research funded by Ineos and carried out by economic advisory firm Oxford Economics.

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The report said the continent’s policymakers face a “critical” decision between acting now to safeguard “this vital strategic industry or risk its irreversible decline”.

As many as 1.2 million people are directly employed by chemical businesses, with millions more supported in the supply chain and through staff spending wages, the Oxford Economics report read.

Average investment by European chemical firms was half that of US counterparts (1.5%, compared to 3%), a trend which is projected to continue, the report added.

The Bank of England sees trouble ahead for global financial markets if investors U-turn on the prospects for artificial intelligence (AI) ahead.

The Bank‘s Financial Policy Committee said in its latest update on the state of the financial system that there was also a risk of a market correction through intensifying worries about US central bank independence.

“The risk of a sharp market correction has increased,” it warned, while adding that the risk of “spillovers” to these shores from such a shock was “material”.

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Fears have been growing that the AI-driven stock market rally in the United States is unsustainable, and there are signs that a growing number of investors are rushing to hedge against any correction.

This was seen early on Wednesday when the spot gold price surpassed the $4,000 per ounce level for the first time.

Analysts point to upward pressure from a global economic slowdown driven by the US trade war, the continuing US government shutdown and worries about the sustainability of US government debt.

The political crisis in France has also been cited as a reason for recent gold shifts.

Money has also left the US dollar since Donald Trump moved to place his supporters at the heart of the US central bank, repeatedly threatening to fire its chair for failing to cut interest rates to support the economy.

Jay Powell’s term at the Federal Reserve ends next spring but the White House, while moving to nominate his replacement, has already shifted the voting power and is looking to fire one rate-setter, Lisa Cook, for alleged mortgage fraud.

She is fighting that move in the courts.

Financial markets fear that monetary policy will no longer be independent of the federal government.

“A sudden or significant change in perceptions of Federal Reserve credibility could result in a sharp repricing of US dollar assets, including in US sovereign debt markets, with the potential for increased volatility, risk premia and global spillovers,” the Bank of England said.

British government borrowing costs are closely correlated with US Treasury yields and both are currently elevated, near multi-year highs in some cases.

It’s presenting Chancellor Rachel Reeves with a headache as she prepares the ground for November’s budget, with the higher yields reflecting investor concerns over high borrowing and debt levels.

On AI, the Bank said that 30% of the US S&P 500’s valuation was made up by the five largest companies, the greatest concentration in 50 years.

Share valuations based on past earnings were the most stretched since the dotcom bubble 25 years ago, though looked less so based on investors’ expectations for future profits.

A recent report from the Massachusetts Institute of Technology found that 95% of businesses that had integrated AI into their operations had yet to see any return on their investment.

“This, when combined with increasing concentration within market indices, leaves markets particularly exposed should expectations around the impact of AI become less optimistic,” the statement said.