Britain’s electricity grid faced severe strain this week as soaring energy demand and declining domestic output were exacerbated by a relentless heatwave and flawed energy policies, forcing the nation to seek emergency power imports at unprecedented costs.
The British government has paid Europe 15 times the normal rate for emergency electricity imports as energy demand surged past domestic supply amid an ongoing heatwave. At the same time, it continues to block new oil and gas drilling in the North Sea.
This week’s crisis was intensified by a record-breaking heatwave that broke the UK’s June temperature record for the third consecutive day on Friday, with Suffolk in southern England recording 36.9°C. The extreme heat has driven a spike in energy consumption as households seek cooling relief. In response, the National Energy System Operator (Neso) urgently secured emergency energy suppliers after domestic generation fell short of demand, plunging the nation’s power grid into crisis. On Wednesday evening, it was revealed that Britain paid almost £1,400 per megawatt hour for European electricity—approximately 1,600 percent above typical European rates and around 15 times normal wholesale prices. The emergency imports, which came primarily from the Netherlands, totaled 2.3 gigawatts and cost an estimated £11 million in a single evening.
Neso required permission from the European Union to import the emergency energy. The crisis was compounded by reduced solar panel efficiency due to extreme heat, routine maintenance on gas-fired power plants, and four nuclear reactors being offline for repairs or unplanned maintenance.
The energy crisis has highlighted critical vulnerabilities in Britain’s infrastructure. Critics have pointed to Neso’s failure to accurately predict demand and prepare in advance. With the UK already among nations with some of the highest energy costs, the situation underscores both the economic burden of energy and the heatwave’s impact on living expenses.
Local councils have ordered residents to remove air conditioning units from their homes to achieve Net Zero targets. In London, officials enforce a “cooling hierarchy” that treats AC as a last resort after passive measures like opening windows or using fans. Some homeowners were instructed to permanently dismantle existing installations.
Prior to his resignation, Prime Minister Sir Keir Starmer was reportedly warned by President Donald J. Trump that he was failing on immigration and energy extraction, particularly with respect to North Sea oil and gas development.
