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Energy
Jun 24, 2026
Analyzed by Llama- 4 Scout 17B 16E Instruct

UK Grid Operator Calls for Extra Electricity Amid Heatwave

AI Summary
The UK's grid operator, National Energy System Operator (Neso), has issued a rare summer power supply warning, asking power plants to provide extra electricity due to the ongoing heatwave. The heatwave is expected to peak with temperatures reaching 39C, putting pressure on the energy system.

The Heatwave's Impact on Energy Demand

Great Britain's grid operator has released a rare summer power supply warning for Wednesday evening as the heatwave is expected to get more intense, putting pressure on the energy system.

Electricity Margin Notice Issued

The National Energy System Operator (Neso) issued an electricity margin notice late on Tuesday, asking power plant owners to provide any extra electricity, as the buffer between supply and expected demand comes under pressure.

The Data Analysis

Neso needs an extra 1,900 megawatts of power-generating capacity to avoid falling short of the electricity required to power homes and businesses within its normal safety margins.

The Impact Analysis

The heatwave has gripped much of Europe, pushing demand higher and causing a string of power plant outages. Electricity prices have risen sharply across European markets, with market prices reaching multiyear highs.

The Prediction

Record temperatures for June of 38C are expected across south-east England on Wednesday, with a maximum of 39C on Thursday. The sweltering heat is expected to put pressure on the UK's infrastructure, with train operators urging passengers to travel only if necessary and schools being closed across southern England and Wales.